pc, pci, tpm, virtio, vhost enhancements and fixes

A bunch of cleanups and fixes all over the place,
 enhancements in TPM, virtio and vhost.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging

pc, pci, tpm, virtio, vhost enhancements and fixes

A bunch of cleanups and fixes all over the place,
enhancements in TPM, virtio and vhost.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

# gpg: Signature made Mon Jun  1 13:19:48 2015 BST using RSA key ID D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>"

* remotes/mst/tags/for_upstream: (60 commits)
  vhost-user: add multi queue support
  virtio: make features 64bit wide
  qdev: add 64bit properties
  virtio-mmio: ioeventfd support
  hw/acpi/aml-build: Fix memory leak
  acpi: add aml_while() term
  acpi: add aml_increment() term
  acpi: add aml_shiftright() term
  acpi: add aml_shiftleft() term
  acpi: add aml_index() term
  acpi: add aml_lless() term
  acpi: add aml_add() term
  TPM2 ACPI table support
  tpm: Probe for connected TPM 1.2 or TPM 2
  Extend TPM TIS interface to support TPM 2
  Add stream ID to MSI write
  acpi: Simplify printing to dynamic string
  i386: drop FDC in pc-q35-2.4+ if neither it nor floppy drives are wanted
  i386/pc_q35: don't insist on board FDC if there's no default floppy
  i386/pc: '-drive if=floppy' should imply a board-default FDC
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

backends/tpm.c

@@ -96,6 +96,20 @@ bool tpm_backend_get_tpm_established_flag(TPMBackend *s)
     return k->ops->get_tpm_established_flag(s);
 }
 
+int tpm_backend_reset_tpm_established_flag(TPMBackend *s, uint8_t locty)
+{
+    TPMBackendClass *k = TPM_BACKEND_GET_CLASS(s);
+
+    return k->ops->reset_tpm_established_flag(s, locty);
+}
+
+TPMVersion tpm_backend_get_tpm_version(TPMBackend *s)
+{
+    TPMBackendClass *k = TPM_BACKEND_GET_CLASS(s);
+
+    return k->ops->get_tpm_version(s);
+}
+
 static bool tpm_backend_prop_get_opened(Object *obj, Error **errp)
 {
     TPMBackend *s = TPM_BACKEND(obj);

docs/specs/vhost-user.txt

@@ -127,6 +127,11 @@ in the ancillary data:
 If Master is unable to send the full message or receives a wrong reply it will
 close the connection. An optional reconnection mechanism can be implemented.
 
+Multi queue support
+-------------------
+The protocol supports multiple queues by setting all index fields in the sent
+messages to a properly calculated value.
+
 Message types
 -------------
 

hw/9pfs/virtio-9p-device.c

@@ -21,7 +21,7 @@
 #include "virtio-9p-coth.h"
 #include "hw/virtio/virtio-access.h"
 
-static uint32_t virtio_9p_get_features(VirtIODevice *vdev, uint32_t features)
+static uint64_t virtio_9p_get_features(VirtIODevice *vdev, uint64_t features)
 {
     virtio_add_feature(&features, VIRTIO_9P_MOUNT_TAG);
     return features;

hw/acpi/aml-build.c

@@ -19,6 +19,7 @@
  * with this program; if not, see <http://www.gnu.org/licenses/>.
  */
 
+#include <glib/gprintf.h>
 #include <stdio.h>
 #include <stdarg.h>
 #include <assert.h>
@@ -59,7 +60,6 @@ static void build_append_array(GArray *array, GArray *val)
 static void
 build_append_nameseg(GArray *array, const char *seg)
 {
-    /* It would be nicer to use g_string_vprintf but it's only there in 2.22 */
     int len;
 
     len = strlen(seg);
@@ -73,22 +73,12 @@ build_append_nameseg(GArray *array, const char *seg)
 static void GCC_FMT_ATTR(2, 0)
 build_append_namestringv(GArray *array, const char *format, va_list ap)
 {
-    /* It would be nicer to use g_string_vprintf but it's only there in 2.22 */
     char *s;
-    int len;
-    va_list va_len;
     char **segs;
     char **segs_iter;
     int seg_count = 0;
 
-    va_copy(va_len, ap);
+    s = g_strdup_vprintf(format, ap);
-    len = vsnprintf(NULL, 0, format, va_len);
-    va_end(va_len);
-    len += 1;
-    s = g_new(typeof(*s), len);
-
-    len = vsnprintf(s, len, format, ap);
-
     segs = g_strsplit(s, ".", 0);
     g_free(s);
 
@@ -306,6 +296,7 @@ static void aml_free(gpointer data, gpointer user_data)
 {
     Aml *var = data;
     build_free_array(var->buf);
+    g_free(var);
 }
 
 Aml *init_aml_allocator(void)
@@ -465,6 +456,63 @@ Aml *aml_or(Aml *arg1, Aml *arg2)
     return var;
 }
 
+/* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefShiftLeft */
+Aml *aml_shiftleft(Aml *arg1, Aml *count)
+{
+    Aml *var = aml_opcode(0x79 /* ShiftLeftOp */);
+    aml_append(var, arg1);
+    aml_append(var, count);
+    build_append_byte(var->buf, 0x00); /* NullNameOp */
+    return var;
+}
+
+/* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefShiftRight */
+Aml *aml_shiftright(Aml *arg1, Aml *count)
+{
+    Aml *var = aml_opcode(0x7A /* ShiftRightOp */);
+    aml_append(var, arg1);
+    aml_append(var, count);
+    build_append_byte(var->buf, 0x00); /* NullNameOp */
+    return var;
+}
+
+/* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefLLess */
+Aml *aml_lless(Aml *arg1, Aml *arg2)
+{
+    Aml *var = aml_opcode(0x95 /* LLessOp */);
+    aml_append(var, arg1);
+    aml_append(var, arg2);
+    return var;
+}
+
+/* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefAdd */
+Aml *aml_add(Aml *arg1, Aml *arg2)
+{
+    Aml *var = aml_opcode(0x72 /* AddOp */);
+    aml_append(var, arg1);
+    aml_append(var, arg2);
+    build_append_byte(var->buf, 0x00 /* NullNameOp */);
+    return var;
+}
+
+/* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefIncrement */
+Aml *aml_increment(Aml *arg)
+{
+    Aml *var = aml_opcode(0x75 /* IncrementOp */);
+    aml_append(var, arg);
+    return var;
+}
+
+/* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefIndex */
+Aml *aml_index(Aml *arg1, Aml *idx)
+{
+    Aml *var = aml_opcode(0x88 /* IndexOp */);
+    aml_append(var, arg1);
+    aml_append(var, idx);
+    build_append_byte(var->buf, 0x00 /* NullNameOp */);
+    return var;
+}
+
 /* ACPI 1.0b: 16.2.5.3 Type 1 Opcodes Encoding: DefNotify */
 Aml *aml_notify(Aml *arg1, Aml *arg2)
 {
@@ -753,22 +801,15 @@ Aml *aml_create_dword_field(Aml *srcbuf, Aml *index, const char *name)
 Aml *aml_string(const char *name_format, ...)
 {
     Aml *var = aml_opcode(0x0D /* StringPrefix */);
-    va_list ap, va_len;
+    va_list ap;
     char *s;
     int len;
 
     va_start(ap, name_format);
-    va_copy(va_len, ap);
+    len = g_vasprintf(&s, name_format, ap);
-    len = vsnprintf(NULL, 0, name_format, va_len);
-    va_end(va_len);
-    len += 1;
-    s = g_new0(typeof(*s), len);
-
-    len = vsnprintf(s, len, name_format, ap);
     va_end(ap);
 
-    g_array_append_vals(var->buf, s, len);
+    g_array_append_vals(var->buf, s, len + 1);
-    build_append_byte(var->buf, 0x0); /* NullChar */
     g_free(s);
 
     return var;

hw/block/virtio-blk.c

@@ -718,7 +718,7 @@ static void virtio_blk_set_config(VirtIODevice *vdev, const uint8_t *config)
     aio_context_release(blk_get_aio_context(s->blk));
 }
 
-static uint32_t virtio_blk_get_features(VirtIODevice *vdev, uint32_t features)
+static uint64_t virtio_blk_get_features(VirtIODevice *vdev, uint64_t features)
 {
     VirtIOBlock *s = VIRTIO_BLK(vdev);
 

hw/char/virtio-serial-bus.c

@@ -498,7 +498,7 @@ static void handle_input(VirtIODevice *vdev, VirtQueue *vq)
     }
 }
 
-static uint32_t get_features(VirtIODevice *vdev, uint32_t features)
+static uint64_t get_features(VirtIODevice *vdev, uint64_t features)
 {
     VirtIOSerial *vser;
 
@@ -973,7 +973,7 @@ static void virtio_serial_device_realize(DeviceState *dev, Error **errp)
     }
 
     /* Each port takes 2 queues, and one pair is for the control queue */
-    max_supported_ports = VIRTIO_PCI_QUEUE_MAX / 2 - 1;
+    max_supported_ports = VIRTIO_QUEUE_MAX / 2 - 1;
 
     if (vser->serial.max_virtserial_ports > max_supported_ports) {
         error_setg(errp, "maximum ports supported: %u", max_supported_ports);

hw/core/qdev-properties.c

@@ -125,6 +125,64 @@ PropertyInfo qdev_prop_bit = {
     .set   = prop_set_bit,
 };
 
+/* Bit64 */
+
+static uint64_t qdev_get_prop_mask64(Property *prop)
+{
+    assert(prop->info == &qdev_prop_bit);
+    return 0x1 << prop->bitnr;
+}
+
+static void bit64_prop_set(DeviceState *dev, Property *props, bool val)
+{
+    uint64_t *p = qdev_get_prop_ptr(dev, props);
+    uint64_t mask = qdev_get_prop_mask64(props);
+    if (val) {
+        *p |= mask;
+    } else {
+        *p &= ~mask;
+    }
+}
+
+static void prop_get_bit64(Object *obj, Visitor *v, void *opaque,
+                           const char *name, Error **errp)
+{
+    DeviceState *dev = DEVICE(obj);
+    Property *prop = opaque;
+    uint64_t *p = qdev_get_prop_ptr(dev, prop);
+    bool value = (*p & qdev_get_prop_mask64(prop)) != 0;
+
+    visit_type_bool(v, &value, name, errp);
+}
+
+static void prop_set_bit64(Object *obj, Visitor *v, void *opaque,
+                           const char *name, Error **errp)
+{
+    DeviceState *dev = DEVICE(obj);
+    Property *prop = opaque;
+    Error *local_err = NULL;
+    bool value;
+
+    if (dev->realized) {
+        qdev_prop_set_after_realize(dev, name, errp);
+        return;
+    }
+
+    visit_type_bool(v, &value, name, &local_err);
+    if (local_err) {
+        error_propagate(errp, local_err);
+        return;
+    }
+    bit64_prop_set(dev, prop, value);
+}
+
+PropertyInfo qdev_prop_bit64 = {
+    .name  = "bool",
+    .description = "on/off",
+    .get   = prop_get_bit64,
+    .set   = prop_set_bit64,
+};
+
 /* --- bool --- */
 
 static void get_bool(Object *obj, Visitor *v, void *opaque,

hw/i386/Makefile.objs

@@ -9,7 +9,7 @@ obj-y += kvmvapic.o
 obj-y += acpi-build.o
 hw/i386/acpi-build.o: hw/i386/acpi-build.c \
 	hw/i386/acpi-dsdt.hex hw/i386/q35-acpi-dsdt.hex \
-	hw/i386/ssdt-tpm.hex
+	hw/i386/ssdt-tpm.hex hw/i386/ssdt-tpm2.hex
 
 iasl-option=$(shell if test -z "`$(1) $(2) 2>&1 > /dev/null`" \
     ; then echo "$(2)"; else echo "$(3)"; fi ;)

hw/i386/acpi-build.c

@@ -41,6 +41,7 @@
 #include "hw/acpi/memory_hotplug.h"
 #include "sysemu/tpm.h"
 #include "hw/acpi/tpm.h"
+#include "sysemu/tpm_backend.h"
 
 /* Supported chipsets: */
 #include "hw/acpi/piix4.h"
@@ -106,7 +107,7 @@ typedef struct AcpiPmInfo {
 
 typedef struct AcpiMiscInfo {
     bool has_hpet;
-    bool has_tpm;
+    TPMVersion tpm_version;
     const unsigned char *dsdt_code;
     unsigned dsdt_size;
     uint16_t pvpanic_port;
@@ -234,7 +235,7 @@ static void acpi_get_pm_info(AcpiPmInfo *pm)
 static void acpi_get_misc_info(AcpiMiscInfo *info)
 {
     info->has_hpet = hpet_find();
-    info->has_tpm = tpm_find();
+    info->tpm_version = tpm_get_version();
     info->pvpanic_port = pvpanic_port();
     info->applesmc_io_base = applesmc_port();
 }
@@ -414,6 +415,7 @@ build_madt(GArray *table_data, GArray *linker, AcpiCpuInfo *cpu,
 }
 
 #include "hw/i386/ssdt-tpm.hex"
+#include "hw/i386/ssdt-tpm2.hex"
 
 /* Assign BSEL property to all buses.  In the future, this can be changed
  * to only assign to buses that support hotplug.
@@ -733,7 +735,7 @@ build_ssdt(GArray *table_data, GArray *linker,
     if (misc->pvpanic_port) {
         scope = aml_scope("\\_SB.PCI0.ISA");
 
-        dev = aml_device("PEVR");
+        dev = aml_device("PEVT");
         aml_append(dev, aml_name_decl("_HID", aml_string("QEMU0001")));
 
         crs = aml_resource_template();
@@ -748,6 +750,9 @@ build_ssdt(GArray *table_data, GArray *linker,
         aml_append(field, aml_named_field("PEPT", 8));
         aml_append(dev, field);
 
+        /* device present, functioning, decoding, not shown in UI */
+        aml_append(dev, aml_name_decl("_STA", aml_int(0xB)));
+
         method = aml_method("RDPT", 0);
         aml_append(method, aml_store(aml_name("PEPT"), aml_local(0)));
         aml_append(method, aml_return(aml_local(0)));
@@ -1026,6 +1031,25 @@ build_tpm_ssdt(GArray *table_data, GArray *linker)
     memcpy(tpm_ptr, ssdt_tpm_aml, sizeof(ssdt_tpm_aml));
 }
 
+static void
+build_tpm2(GArray *table_data, GArray *linker)
+{
+    Acpi20TPM2 *tpm2_ptr;
+    void *tpm_ptr;
+
+    tpm_ptr = acpi_data_push(table_data, sizeof(ssdt_tpm2_aml));
+    memcpy(tpm_ptr, ssdt_tpm2_aml, sizeof(ssdt_tpm2_aml));
+
+    tpm2_ptr = acpi_data_push(table_data, sizeof *tpm2_ptr);
+
+    tpm2_ptr->platform_class = cpu_to_le16(TPM2_ACPI_CLASS_CLIENT);
+    tpm2_ptr->control_area_address = cpu_to_le64(0);
+    tpm2_ptr->start_method = cpu_to_le32(TPM2_START_METHOD_MMIO);
+
+    build_header(linker, table_data,
+                 (void *)tpm2_ptr, "TPM2", sizeof(*tpm2_ptr), 4);
+}
+
 typedef enum {
     MEM_AFFINITY_NOFLAGS      = 0,
     MEM_AFFINITY_ENABLED      = (1 << 0),
@@ -1340,12 +1364,21 @@ void acpi_build(PcGuestInfo *guest_info, AcpiBuildTables *tables)
         acpi_add_table(table_offsets, tables_blob);
         build_hpet(tables_blob, tables->linker);
     }
-    if (misc.has_tpm) {
+    if (misc.tpm_version != TPM_VERSION_UNSPEC) {
         acpi_add_table(table_offsets, tables_blob);
         build_tpm_tcpa(tables_blob, tables->linker, tables->tcpalog);
 
         acpi_add_table(table_offsets, tables_blob);
+        switch (misc.tpm_version) {
+        case TPM_VERSION_1_2:
             build_tpm_ssdt(tables_blob, tables->linker);
+            break;
+        case TPM_VERSION_2_0:
+            build_tpm2(tables_blob, tables->linker);
+            break;
+        default:
+            assert(false);
+        }
     }
     if (guest_info->numa_nodes) {
         acpi_add_table(table_offsets, tables_blob);

hw/i386/pc.c

@@ -1395,6 +1395,7 @@ static const MemoryRegionOps ioportF0_io_ops = {
 
 void pc_basic_device_init(ISABus *isa_bus, qemu_irq *gsi,
                           ISADevice **rtc_state,
+                          bool create_fdctrl,
                           ISADevice **floppy,
                           bool no_vmport,
                           uint32 hpet_irqs)
@@ -1489,8 +1490,9 @@ void pc_basic_device_init(ISABus *isa_bus, qemu_irq *gsi,
 
     for(i = 0; i < MAX_FD; i++) {
         fd[i] = drive_get(IF_FLOPPY, 0, i);
+        create_fdctrl |= !!fd[i];
     }
-    *floppy = fdctrl_init_isa(isa_bus, fd);
+    *floppy = create_fdctrl ? fdctrl_init_isa(isa_bus, fd) : NULL;
 }
 
 void pc_nic_init(ISABus *isa_bus, PCIBus *pci_bus)
@@ -1543,51 +1545,6 @@ void ioapic_init_gsi(GSIState *gsi_state, const char *parent_name)
     }
 }
 
-static void pc_generic_machine_class_init(ObjectClass *oc, void *data)
-{
-    MachineClass *mc = MACHINE_CLASS(oc);
-    QEMUMachine *qm = data;
-
-    mc->family = qm->family;
-    mc->name = qm->name;
-    mc->alias = qm->alias;
-    mc->desc = qm->desc;
-    mc->init = qm->init;
-    mc->reset = qm->reset;
-    mc->hot_add_cpu = qm->hot_add_cpu;
-    mc->kvm_type = qm->kvm_type;
-    mc->block_default_type = qm->block_default_type;
-    mc->units_per_default_bus = qm->units_per_default_bus;
-    mc->max_cpus = qm->max_cpus;
-    mc->no_serial = qm->no_serial;
-    mc->no_parallel = qm->no_parallel;
-    mc->use_virtcon = qm->use_virtcon;
-    mc->use_sclp = qm->use_sclp;
-    mc->no_floppy = qm->no_floppy;
-    mc->no_cdrom = qm->no_cdrom;
-    mc->no_sdcard = qm->no_sdcard;
-    mc->is_default = qm->is_default;
-    mc->default_machine_opts = qm->default_machine_opts;
-    mc->default_boot_order = qm->default_boot_order;
-    mc->default_display = qm->default_display;
-    mc->compat_props = qm->compat_props;
-    mc->hw_version = qm->hw_version;
-}
-
-void qemu_register_pc_machine(QEMUMachine *m)
-{
-    char *name = g_strconcat(m->name, TYPE_MACHINE_SUFFIX, NULL);
-    TypeInfo ti = {
-        .name       = name,
-        .parent     = TYPE_PC_MACHINE,
-        .class_init = pc_generic_machine_class_init,
-        .class_data = (void *)m,
-    };
-
-    type_register(&ti);
-    g_free(name);
-}
-
 static void pc_dimm_plug(HotplugHandler *hotplug_dev,
                          DeviceState *dev, Error **errp)
 {

hw/i386/pc_piix.c

@@ -59,6 +59,7 @@ static const int ide_iobase[MAX_IDE_BUS] = { 0x1f0, 0x170 };
 static const int ide_iobase2[MAX_IDE_BUS] = { 0x3f6, 0x376 };
 static const int ide_irq[MAX_IDE_BUS] = { 14, 15 };
 
+static bool pci_enabled = true;
 static bool has_acpi_build = true;
 static bool rsdp_in_ram = true;
 static int legacy_acpi_table_size;
@@ -71,11 +72,10 @@ static bool smbios_uuid_encoded = true;
  */
 static bool gigabyte_align = true;
 static bool has_reserved_memory = true;
+static bool kvmclock_enabled = true;
 
 /* PC hardware initialisation */
-static void pc_init1(MachineState *machine,
+static void pc_init1(MachineState *machine)
-                     int pci_enabled,
-                     int kvmclock_enabled)
 {
     PCMachineState *pc_machine = PC_MACHINE(machine);
     MemoryRegion *system_memory = get_system_memory();
@@ -242,7 +242,7 @@ static void pc_init1(MachineState *machine,
     }
 
     /* init basic PC hardware */
-    pc_basic_device_init(isa_bus, gsi, &rtc_state, &floppy,
+    pc_basic_device_init(isa_bus, gsi, &rtc_state, true, &floppy,
                          (pc_machine->vmport != ON_OFF_AUTO_ON), 0x4);
 
     pc_nic_init(isa_bus, pci_bus);
@@ -305,11 +305,6 @@ static void pc_init1(MachineState *machine,
     }
 }
 
-static void pc_init_pci(MachineState *machine)
-{
-    pc_init1(machine, 1, 1);
-}
-
 static void pc_compat_2_3(MachineState *machine)
 {
 }
@@ -418,76 +413,16 @@ static void pc_compat_1_2(MachineState *machine)
     x86_cpu_compat_kvm_no_autoenable(FEAT_KVM, 1 << KVM_FEATURE_PV_EOI);
 }
 
-static void pc_init_pci_2_3(MachineState *machine)
+/* PC compat function for pc-0.10 to pc-0.13 */
-{
+static void pc_compat_0_13(MachineState *machine)
-    pc_compat_2_3(machine);
-    pc_init_pci(machine);
-}
-
-static void pc_init_pci_2_2(MachineState *machine)
-{
-    pc_compat_2_2(machine);
-    pc_init_pci(machine);
-}
-
-static void pc_init_pci_2_1(MachineState *machine)
-{
-    pc_compat_2_1(machine);
-    pc_init_pci(machine);
-}
-
-static void pc_init_pci_2_0(MachineState *machine)
-{
-    pc_compat_2_0(machine);
-    pc_init_pci(machine);
-}
-
-static void pc_init_pci_1_7(MachineState *machine)
-{
-    pc_compat_1_7(machine);
-    pc_init_pci(machine);
-}
-
-static void pc_init_pci_1_6(MachineState *machine)
-{
-    pc_compat_1_6(machine);
-    pc_init_pci(machine);
-}
-
-static void pc_init_pci_1_5(MachineState *machine)
-{
-    pc_compat_1_5(machine);
-    pc_init_pci(machine);
-}
-
-static void pc_init_pci_1_4(MachineState *machine)
-{
-    pc_compat_1_4(machine);
-    pc_init_pci(machine);
-}
-
-static void pc_init_pci_1_3(MachineState *machine)
-{
-    pc_compat_1_3(machine);
-    pc_init_pci(machine);
-}
-
-/* PC machine init function for pc-0.14 to pc-1.2 */
-static void pc_init_pci_1_2(MachineState *machine)
 {
     pc_compat_1_2(machine);
-    pc_init_pci(machine);
+    kvmclock_enabled = false;
-}
-
-/* PC init function for pc-0.10 to pc-0.13 */
-static void pc_init_pci_no_kvmclock(MachineState *machine)
-{
-    pc_compat_1_2(machine);
-    pc_init1(machine, 1, 0);
 }
 
 static void pc_init_isa(MachineState *machine)
 {
+    pci_enabled = false;
     has_acpi_build = false;
     smbios_defaults = false;
     gigabyte_align = false;
@@ -500,7 +435,7 @@ static void pc_init_isa(MachineState *machine)
     }
     x86_cpu_compat_kvm_no_autoenable(FEAT_KVM, 1 << KVM_FEATURE_PV_EOI);
     enable_compat_apic_id_mode();
-    pc_init1(machine, 0, 1);
+    pc_init1(machine);
 }
 
 #ifdef CONFIG_XEN
@@ -508,7 +443,7 @@ static void pc_xen_hvm_init(MachineState *machine)
 {
     PCIBus *bus;
 
-    pc_init_pci(machine);
+    pc_init1(machine);
 
     bus = pci_find_primary_bus();
     if (bus != NULL) {
@@ -517,118 +452,126 @@ static void pc_xen_hvm_init(MachineState *machine)
 }
 #endif
 
-#define PC_I440FX_MACHINE_OPTIONS \
+#define DEFINE_I440FX_MACHINE(suffix, name, compatfn, optionfn) \
-    PC_DEFAULT_MACHINE_OPTIONS, \
+    static void pc_init_##suffix(MachineState *machine) \
-    .family = "pc_piix", \
+    { \
-    .desc = "Standard PC (i440FX + PIIX, 1996)", \
+        void (*compat)(MachineState *m) = (compatfn); \
-    .hot_add_cpu = pc_hot_add_cpu
+        if (compat) { \
+            compat(machine); \
+        } \
+        pc_init1(machine); \
+    } \
+    DEFINE_PC_MACHINE(suffix, name, pc_init_##suffix, optionfn)
 
-#define PC_I440FX_2_4_MACHINE_OPTIONS                           \
+static void pc_i440fx_machine_options(MachineClass *m)
-    PC_I440FX_MACHINE_OPTIONS,                                  \
+{
-    .default_machine_opts = "firmware=bios-256k.bin",           \
+    pc_default_machine_options(m);
-    .default_display = "std"
+    m->family = "pc_piix";
+    m->desc = "Standard PC (i440FX + PIIX, 1996)";
+    m->hot_add_cpu = pc_hot_add_cpu;
+}
+
+static void pc_i440fx_2_4_machine_options(MachineClass *m)
+{
+    pc_i440fx_machine_options(m);
+    m->default_machine_opts = "firmware=bios-256k.bin";
+    m->default_display = "std";
+    m->alias = "pc";
+    m->is_default = 1;
+}
+
+DEFINE_I440FX_MACHINE(v2_4, "pc-i440fx-2.4", NULL,
+                      pc_i440fx_2_4_machine_options)
 
 
-static QEMUMachine pc_i440fx_machine_v2_4 = {
+static void pc_i440fx_2_3_machine_options(MachineClass *m)
-    PC_I440FX_2_4_MACHINE_OPTIONS,
+{
-    .name = "pc-i440fx-2.4",
+    pc_i440fx_machine_options(m);
-    .alias = "pc",
+    m->alias = NULL;
-    .init = pc_init_pci,
+    m->is_default = 0;
-    .is_default = 1,
+    SET_MACHINE_COMPAT(m, PC_COMPAT_2_3);
-};
+}
 
-#define PC_I440FX_2_3_MACHINE_OPTIONS PC_I440FX_2_4_MACHINE_OPTIONS
+DEFINE_I440FX_MACHINE(v2_3, "pc-i440fx-2.3", pc_compat_2_3,
+                      pc_i440fx_2_3_machine_options);
 
-static QEMUMachine pc_i440fx_machine_v2_3 = {
-    PC_I440FX_2_3_MACHINE_OPTIONS,
-    .name = "pc-i440fx-2.3",
-    .init = pc_init_pci_2_3,
-};
 
-#define PC_I440FX_2_2_MACHINE_OPTIONS PC_I440FX_2_3_MACHINE_OPTIONS
+static void pc_i440fx_2_2_machine_options(MachineClass *m)
+{
+    pc_i440fx_2_3_machine_options(m);
+    SET_MACHINE_COMPAT(m, PC_COMPAT_2_2);
+}
 
-static QEMUMachine pc_i440fx_machine_v2_2 = {
+DEFINE_I440FX_MACHINE(v2_2, "pc-i440fx-2.2", pc_compat_2_2,
-    PC_I440FX_2_2_MACHINE_OPTIONS,
+                      pc_i440fx_2_2_machine_options);
-    .name = "pc-i440fx-2.2",
-    .init = pc_init_pci_2_2,
-};
 
-#define PC_I440FX_2_1_MACHINE_OPTIONS                           \
-    PC_I440FX_MACHINE_OPTIONS,                                  \
-    .default_machine_opts = "firmware=bios-256k.bin"
 
-static QEMUMachine pc_i440fx_machine_v2_1 = {
+static void pc_i440fx_2_1_machine_options(MachineClass *m)
-    PC_I440FX_2_1_MACHINE_OPTIONS,
+{
-    .name = "pc-i440fx-2.1",
+    pc_i440fx_2_2_machine_options(m);
-    .init = pc_init_pci_2_1,
+    m->default_display = NULL;
-    .compat_props = (GlobalProperty[]) {
+    SET_MACHINE_COMPAT(m, PC_COMPAT_2_1);
-        HW_COMPAT_2_1,
+}
-        { /* end of list */ }
-    },
-};
 
-#define PC_I440FX_2_0_MACHINE_OPTIONS PC_I440FX_2_1_MACHINE_OPTIONS
+DEFINE_I440FX_MACHINE(v2_1, "pc-i440fx-2.1", pc_compat_2_1,
+                      pc_i440fx_2_1_machine_options);
 
-static QEMUMachine pc_i440fx_machine_v2_0 = {
-    PC_I440FX_2_0_MACHINE_OPTIONS,
-    .name = "pc-i440fx-2.0",
-    .init = pc_init_pci_2_0,
-    .compat_props = (GlobalProperty[]) {
-        PC_COMPAT_2_0,
-        { /* end of list */ }
-    },
-};
 
-#define PC_I440FX_1_7_MACHINE_OPTIONS PC_I440FX_MACHINE_OPTIONS
 
-static QEMUMachine pc_i440fx_machine_v1_7 = {
+static void pc_i440fx_2_0_machine_options(MachineClass *m)
-    PC_I440FX_1_7_MACHINE_OPTIONS,
+{
-    .name = "pc-i440fx-1.7",
+    pc_i440fx_2_1_machine_options(m);
-    .init = pc_init_pci_1_7,
+    SET_MACHINE_COMPAT(m, PC_COMPAT_2_0);
-    .compat_props = (GlobalProperty[]) {
+}
-        PC_COMPAT_1_7,
-        { /* end of list */ }
-    },
-};
 
-#define PC_I440FX_1_6_MACHINE_OPTIONS PC_I440FX_MACHINE_OPTIONS
+DEFINE_I440FX_MACHINE(v2_0, "pc-i440fx-2.0", pc_compat_2_0,
+                      pc_i440fx_2_0_machine_options);
 
-static QEMUMachine pc_i440fx_machine_v1_6 = {
-    PC_I440FX_1_6_MACHINE_OPTIONS,
-    .name = "pc-i440fx-1.6",
-    .init = pc_init_pci_1_6,
-    .compat_props = (GlobalProperty[]) {
-        PC_COMPAT_1_6,
-        { /* end of list */ }
-    },
-};
 
-static QEMUMachine pc_i440fx_machine_v1_5 = {
+static void pc_i440fx_1_7_machine_options(MachineClass *m)
-    PC_I440FX_1_6_MACHINE_OPTIONS,
+{
-    .name = "pc-i440fx-1.5",
+    pc_i440fx_2_0_machine_options(m);
-    .init = pc_init_pci_1_5,
+    m->default_machine_opts = NULL;
-    .compat_props = (GlobalProperty[]) {
+    SET_MACHINE_COMPAT(m, PC_COMPAT_1_7);
-        PC_COMPAT_1_5,
+}
-        { /* end of list */ }
-    },
-};
 
-#define PC_I440FX_1_4_MACHINE_OPTIONS \
+DEFINE_I440FX_MACHINE(v1_7, "pc-i440fx-1.7", pc_compat_1_7,
-    PC_I440FX_1_6_MACHINE_OPTIONS, \
+                      pc_i440fx_1_7_machine_options);
-    .hot_add_cpu = NULL
+
+
+static void pc_i440fx_1_6_machine_options(MachineClass *m)
+{
+    pc_i440fx_1_7_machine_options(m);
+    SET_MACHINE_COMPAT(m, PC_COMPAT_1_6);
+}
+
+DEFINE_I440FX_MACHINE(v1_6, "pc-i440fx-1.6", pc_compat_1_6,
+                      pc_i440fx_1_6_machine_options);
+
+
+static void pc_i440fx_1_5_machine_options(MachineClass *m)
+{
+    pc_i440fx_1_6_machine_options(m);
+    SET_MACHINE_COMPAT(m, PC_COMPAT_1_5);
+}
+
+DEFINE_I440FX_MACHINE(v1_5, "pc-i440fx-1.5", pc_compat_1_5,
+                      pc_i440fx_1_5_machine_options);
+
+
+static void pc_i440fx_1_4_machine_options(MachineClass *m)
+{
+    pc_i440fx_1_5_machine_options(m);
+    m->hot_add_cpu = NULL;
+    SET_MACHINE_COMPAT(m, PC_COMPAT_1_4);
+}
+
+DEFINE_I440FX_MACHINE(v1_4, "pc-i440fx-1.4", pc_compat_1_4,
+                      pc_i440fx_1_4_machine_options);
 
-static QEMUMachine pc_i440fx_machine_v1_4 = {
-    PC_I440FX_1_4_MACHINE_OPTIONS,
-    .name = "pc-i440fx-1.4",
-    .init = pc_init_pci_1_4,
-    .compat_props = (GlobalProperty[]) {
-        PC_COMPAT_1_4,
-        { /* end of list */ }
-    },
-};
 
 #define PC_COMPAT_1_3 \
-	PC_COMPAT_1_4, \
+        PC_COMPAT_1_4 \
         {\
             .driver   = "usb-tablet",\
             .property = "usb_version",\
@@ -645,20 +588,21 @@ static QEMUMachine pc_i440fx_machine_v1_4 = {
             .driver   = "e1000",\
             .property = "autonegotiation",\
             .value    = "off",\
+        },
+
+
+static void pc_i440fx_1_3_machine_options(MachineClass *m)
+{
+    pc_i440fx_1_4_machine_options(m);
+    SET_MACHINE_COMPAT(m, PC_COMPAT_1_3);
 }
 
-static QEMUMachine pc_machine_v1_3 = {
+DEFINE_I440FX_MACHINE(v1_3, "pc-1.3", pc_compat_1_3,
-    PC_I440FX_1_4_MACHINE_OPTIONS,
+                      pc_i440fx_1_3_machine_options);
-    .name = "pc-1.3",
+
-    .init = pc_init_pci_1_3,
-    .compat_props = (GlobalProperty[]) {
-        PC_COMPAT_1_3,
-        { /* end of list */ }
-    },
-};
 
 #define PC_COMPAT_1_2 \
-        PC_COMPAT_1_3,\
+        PC_COMPAT_1_3 \
         {\
             .driver   = "nec-usb-xhci",\
             .property = "msi",\
@@ -683,23 +627,20 @@ static QEMUMachine pc_machine_v1_3 = {
             .driver   = "VGA",\
             .property = "mmio",\
             .value    = "off",\
+        },
+
+static void pc_i440fx_1_2_machine_options(MachineClass *m)
+{
+    pc_i440fx_1_3_machine_options(m);
+    SET_MACHINE_COMPAT(m, PC_COMPAT_1_2);
 }
 
-#define PC_I440FX_1_2_MACHINE_OPTIONS \
+DEFINE_I440FX_MACHINE(v1_2, "pc-1.2", pc_compat_1_2,
-    PC_I440FX_1_4_MACHINE_OPTIONS, \
+                      pc_i440fx_1_2_machine_options);
-    .init = pc_init_pci_1_2
 
-static QEMUMachine pc_machine_v1_2 = {
-    PC_I440FX_1_2_MACHINE_OPTIONS,
-    .name = "pc-1.2",
-    .compat_props = (GlobalProperty[]) {
-        PC_COMPAT_1_2,
-        { /* end of list */ }
-    },
-};
 
 #define PC_COMPAT_1_1 \
-        PC_COMPAT_1_2,\
+        PC_COMPAT_1_2 \
         {\
             .driver   = "virtio-scsi-pci",\
             .property = "hotplug",\
@@ -728,19 +669,20 @@ static QEMUMachine pc_machine_v1_2 = {
             .driver   = "virtio-blk-pci",\
             .property = "config-wce",\
             .value    = "off",\
+        },
+
+static void pc_i440fx_1_1_machine_options(MachineClass *m)
+{
+    pc_i440fx_1_2_machine_options(m);
+    SET_MACHINE_COMPAT(m, PC_COMPAT_1_1);
 }
 
-static QEMUMachine pc_machine_v1_1 = {
+DEFINE_I440FX_MACHINE(v1_1, "pc-1.1", pc_compat_1_2,
-    PC_I440FX_1_2_MACHINE_OPTIONS,
+                      pc_i440fx_1_1_machine_options);
-    .name = "pc-1.1",
+
-    .compat_props = (GlobalProperty[]) {
-        PC_COMPAT_1_1,
-        { /* end of list */ }
-    },
-};
 
 #define PC_COMPAT_1_0 \
-        PC_COMPAT_1_1,\
+        PC_COMPAT_1_1 \
         {\
             .driver   = TYPE_ISA_FDC,\
             .property = "check_media_rate",\
@@ -757,33 +699,35 @@ static QEMUMachine pc_machine_v1_1 = {
             .driver   = TYPE_USB_DEVICE,\
             .property = "full-path",\
             .value    = "no",\
+        },
+
+static void pc_i440fx_1_0_machine_options(MachineClass *m)
+{
+    pc_i440fx_1_1_machine_options(m);
+    m->hw_version = "1.0";
+    SET_MACHINE_COMPAT(m, PC_COMPAT_1_0);
 }
 
-static QEMUMachine pc_machine_v1_0 = {
+DEFINE_I440FX_MACHINE(v1_0, "pc-1.0", pc_compat_1_2,
-    PC_I440FX_1_2_MACHINE_OPTIONS,
+                      pc_i440fx_1_0_machine_options);
-    .name = "pc-1.0",
+
-    .compat_props = (GlobalProperty[]) {
-        PC_COMPAT_1_0,
-        { /* end of list */ }
-    },
-    .hw_version = "1.0",
-};
 
 #define PC_COMPAT_0_15 \
         PC_COMPAT_1_0
 
-static QEMUMachine pc_machine_v0_15 = {
+static void pc_i440fx_0_15_machine_options(MachineClass *m)
-    PC_I440FX_1_2_MACHINE_OPTIONS,
+{
-    .name = "pc-0.15",
+    pc_i440fx_1_0_machine_options(m);
-    .compat_props = (GlobalProperty[]) {
+    m->hw_version = "0.15";
-        PC_COMPAT_0_15,
+    SET_MACHINE_COMPAT(m, PC_COMPAT_0_15);
-        { /* end of list */ }
+}
-    },
+
-    .hw_version = "0.15",
+DEFINE_I440FX_MACHINE(v0_15, "pc-0.15", pc_compat_1_2,
-};
+                      pc_i440fx_0_15_machine_options);
+
 
 #define PC_COMPAT_0_14 \
-        PC_COMPAT_0_15,\
+        PC_COMPAT_0_15 \
         {\
             .driver   = "virtio-blk-pci",\
             .property = "event_idx",\
@@ -800,29 +744,29 @@ static QEMUMachine pc_machine_v0_15 = {
             .driver   = "virtio-balloon-pci",\
             .property = "event_idx",\
             .value    = "off",\
+        },{\
+            .driver   = "qxl",\
+            .property = "revision",\
+            .value    = stringify(2),\
+        },{\
+            .driver   = "qxl-vga",\
+            .property = "revision",\
+            .value    = stringify(2),\
+        },
+
+static void pc_i440fx_0_14_machine_options(MachineClass *m)
+{
+    pc_i440fx_0_15_machine_options(m);
+    m->hw_version = "0.14";
+    SET_MACHINE_COMPAT(m, PC_COMPAT_0_14);
 }
 
-static QEMUMachine pc_machine_v0_14 = {
+DEFINE_I440FX_MACHINE(v0_14, "pc-0.14", pc_compat_1_2,
-    PC_I440FX_1_2_MACHINE_OPTIONS,
+                      pc_i440fx_0_14_machine_options);
-    .name = "pc-0.14",
+
-    .compat_props = (GlobalProperty[]) {
-        PC_COMPAT_0_14, 
-        {
-            .driver   = "qxl",
-            .property = "revision",
-            .value    = stringify(2),
-        },{
-            .driver   = "qxl-vga",
-            .property = "revision",
-            .value    = stringify(2),
-        },
-        { /* end of list */ }
-    },
-    .hw_version = "0.14",
-};
 
 #define PC_COMPAT_0_13 \
-        PC_COMPAT_0_14,\
+        PC_COMPAT_0_14 \
         {\
             .driver   = TYPE_PCI_DEVICE,\
             .property = "command_serr_enable",\
@@ -831,37 +775,33 @@ static QEMUMachine pc_machine_v0_14 = {
             .driver   = "AC97",\
             .property = "use_broken_id",\
             .value    = stringify(1),\
+        },{\
+            .driver   = "virtio-9p-pci",\
+            .property = "vectors",\
+            .value    = stringify(0),\
+        },{\
+            .driver   = "VGA",\
+            .property = "rombar",\
+            .value    = stringify(0),\
+        },{\
+            .driver   = "vmware-svga",\
+            .property = "rombar",\
+            .value    = stringify(0),\
+        },
+
+static void pc_i440fx_0_13_machine_options(MachineClass *m)
+{
+    pc_i440fx_0_14_machine_options(m);
+    m->hw_version = "0.13";
+    SET_MACHINE_COMPAT(m, PC_COMPAT_0_13);
 }
 
-#define PC_I440FX_0_13_MACHINE_OPTIONS \
+DEFINE_I440FX_MACHINE(v0_13, "pc-0.13", pc_compat_0_13,
-    PC_I440FX_1_2_MACHINE_OPTIONS, \
+                      pc_i440fx_0_13_machine_options);
-    .init = pc_init_pci_no_kvmclock
 
-static QEMUMachine pc_machine_v0_13 = {
-    PC_I440FX_0_13_MACHINE_OPTIONS,
-    .name = "pc-0.13",
-    .compat_props = (GlobalProperty[]) {
-        PC_COMPAT_0_13,
-        {
-            .driver   = "virtio-9p-pci",
-            .property = "vectors",
-            .value    = stringify(0),
-        },{
-            .driver   = "VGA",
-            .property = "rombar",
-            .value    = stringify(0),
-        },{
-            .driver   = "vmware-svga",
-            .property = "rombar",
-            .value    = stringify(0),
-        },
-        { /* end of list */ }
-    },
-    .hw_version = "0.13",
-};
 
 #define PC_COMPAT_0_12 \
-        PC_COMPAT_0_13,\
+        PC_COMPAT_0_13 \
         {\
             .driver   = "virtio-serial-pci",\
             .property = "max_ports",\
@@ -882,29 +822,21 @@ static QEMUMachine pc_machine_v0_13 = {
             .driver   = "usb-kbd",\
             .property = "serial",\
             .value    = "1",\
+        },
+
+static void pc_i440fx_0_12_machine_options(MachineClass *m)
+{
+    pc_i440fx_0_13_machine_options(m);
+    m->hw_version = "0.12";
+    SET_MACHINE_COMPAT(m, PC_COMPAT_0_12);
 }
 
-static QEMUMachine pc_machine_v0_12 = {
+DEFINE_I440FX_MACHINE(v0_12, "pc-0.12", pc_compat_0_13,
-    PC_I440FX_0_13_MACHINE_OPTIONS,
+                      pc_i440fx_0_12_machine_options);
-    .name = "pc-0.12",
+
-    .compat_props = (GlobalProperty[]) {
-        PC_COMPAT_0_12,
-        {
-            .driver   = "VGA",
-            .property = "rombar",
-            .value    = stringify(0),
-        },{
-            .driver   = "vmware-svga",
-            .property = "rombar",
-            .value    = stringify(0),
-        },
-        { /* end of list */ }
-    },
-    .hw_version = "0.12",
-};
 
 #define PC_COMPAT_0_11 \
-        PC_COMPAT_0_12,\
+        PC_COMPAT_0_12 \
         {\
             .driver   = "virtio-blk-pci",\
             .property = "vectors",\
@@ -913,106 +845,83 @@ static QEMUMachine pc_machine_v0_12 = {
             .driver   = TYPE_PCI_DEVICE,\
             .property = "rombar",\
             .value    = stringify(0),\
+        },{\
+            .driver   = "ide-drive",\
+            .property = "ver",\
+            .value    = "0.11",\
+        },{\
+            .driver   = "scsi-disk",\
+            .property = "ver",\
+            .value    = "0.11",\
+        },
+
+static void pc_i440fx_0_11_machine_options(MachineClass *m)
+{
+    pc_i440fx_0_12_machine_options(m);
+    m->hw_version = "0.11";
+    SET_MACHINE_COMPAT(m, PC_COMPAT_0_11);
 }
 
-static QEMUMachine pc_machine_v0_11 = {
+DEFINE_I440FX_MACHINE(v0_11, "pc-0.11", pc_compat_0_13,
-    PC_I440FX_0_13_MACHINE_OPTIONS,
+                      pc_i440fx_0_11_machine_options);
-    .name = "pc-0.11",
+
-    .compat_props = (GlobalProperty[]) {
+
-        PC_COMPAT_0_11,
+#define PC_COMPAT_0_10 \
+    PC_COMPAT_0_11 \
+    {\
+        .driver   = "virtio-blk-pci",\
+        .property = "class",\
+        .value    = stringify(PCI_CLASS_STORAGE_OTHER),\
+    },{\
+        .driver   = "virtio-serial-pci",\
+        .property = "class",\
+        .value    = stringify(PCI_CLASS_DISPLAY_OTHER),\
+    },{\
+        .driver   = "virtio-net-pci",\
+        .property = "vectors",\
+        .value    = stringify(0),\
+    },{\
+        .driver   = "ide-drive",\
+        .property = "ver",\
+        .value    = "0.10",\
+    },{\
+        .driver   = "scsi-disk",\
+        .property = "ver",\
+        .value    = "0.10",\
+    },
+
+static void pc_i440fx_0_10_machine_options(MachineClass *m)
 {
-            .driver   = "ide-drive",
+    pc_i440fx_0_11_machine_options(m);
-            .property = "ver",
+    m->hw_version = "0.10";
-            .value    = "0.11",
+    SET_MACHINE_COMPAT(m, PC_COMPAT_0_10);
-        },{
-            .driver   = "scsi-disk",
-            .property = "ver",
-            .value    = "0.11",
-        },
-        { /* end of list */ }
-    },
-    .hw_version = "0.11",
-};
-
-static QEMUMachine pc_machine_v0_10 = {
-    PC_I440FX_0_13_MACHINE_OPTIONS,
-    .name = "pc-0.10",
-    .compat_props = (GlobalProperty[]) {
-        PC_COMPAT_0_11,
-        {
-            .driver   = "virtio-blk-pci",
-            .property = "class",
-            .value    = stringify(PCI_CLASS_STORAGE_OTHER),
-        },{
-            .driver   = "virtio-serial-pci",
-            .property = "class",
-            .value    = stringify(PCI_CLASS_DISPLAY_OTHER),
-        },{
-            .driver   = "virtio-net-pci",
-            .property = "vectors",
-            .value    = stringify(0),
-        },{
-            .driver   = "ide-drive",
-            .property = "ver",
-            .value    = "0.10",
-        },{
-            .driver   = "scsi-disk",
-            .property = "ver",
-            .value    = "0.10",
-        },
-        { /* end of list */ }
-    },
-    .hw_version = "0.10",
-};
-
-static QEMUMachine isapc_machine = {
-    PC_COMMON_MACHINE_OPTIONS,
-    .name = "isapc",
-    .desc = "ISA-only PC",
-    .init = pc_init_isa,
-    .max_cpus = 1,
-    .compat_props = (GlobalProperty[]) {
-        { /* end of list */ }
-    },
-};
-
-#ifdef CONFIG_XEN
-static QEMUMachine xenfv_machine = {
-    PC_COMMON_MACHINE_OPTIONS,
-    .name = "xenfv",
-    .desc = "Xen Fully-virtualized PC",
-    .init = pc_xen_hvm_init,
-    .max_cpus = HVM_MAX_VCPUS,
-    .default_machine_opts = "accel=xen",
-    .hot_add_cpu = pc_hot_add_cpu,
-};
-#endif
-
-static void pc_machine_init(void)
-{
-    qemu_register_pc_machine(&pc_i440fx_machine_v2_4);
-    qemu_register_pc_machine(&pc_i440fx_machine_v2_3);
-    qemu_register_pc_machine(&pc_i440fx_machine_v2_2);
-    qemu_register_pc_machine(&pc_i440fx_machine_v2_1);
-    qemu_register_pc_machine(&pc_i440fx_machine_v2_0);
-    qemu_register_pc_machine(&pc_i440fx_machine_v1_7);
-    qemu_register_pc_machine(&pc_i440fx_machine_v1_6);
-    qemu_register_pc_machine(&pc_i440fx_machine_v1_5);
-    qemu_register_pc_machine(&pc_i440fx_machine_v1_4);
-    qemu_register_pc_machine(&pc_machine_v1_3);
-    qemu_register_pc_machine(&pc_machine_v1_2);
-    qemu_register_pc_machine(&pc_machine_v1_1);
-    qemu_register_pc_machine(&pc_machine_v1_0);
-    qemu_register_pc_machine(&pc_machine_v0_15);
-    qemu_register_pc_machine(&pc_machine_v0_14);
-    qemu_register_pc_machine(&pc_machine_v0_13);
-    qemu_register_pc_machine(&pc_machine_v0_12);
-    qemu_register_pc_machine(&pc_machine_v0_11);
-    qemu_register_pc_machine(&pc_machine_v0_10);
-    qemu_register_pc_machine(&isapc_machine);
-#ifdef CONFIG_XEN
-    qemu_register_pc_machine(&xenfv_machine);
-#endif
 }
 
-machine_init(pc_machine_init);
+DEFINE_I440FX_MACHINE(v0_10, "pc-0.10", pc_compat_0_13,
+                      pc_i440fx_0_10_machine_options);
+
+
+static void isapc_machine_options(MachineClass *m)
+{
+    pc_common_machine_options(m);
+    m->desc = "ISA-only PC";
+    m->max_cpus = 1;
+}
+
+DEFINE_PC_MACHINE(isapc, "isapc", pc_init_isa,
+                  isapc_machine_options);
+
+
+#ifdef CONFIG_XEN
+static void xenfv_machine_options(MachineClass *m)
+{
+    pc_common_machine_options(m);
+    m->desc = "Xen Fully-virtualized PC";
+    m->max_cpus = HVM_MAX_VCPUS;
+    m->default_machine_opts = "accel=xen";
+    m->hot_add_cpu = pc_hot_add_cpu;
+}
+
+DEFINE_PC_MACHINE(xenfv, "xenfv", pc_xen_hvm_init,
+                  xenfv_machine_options);
+#endif

hw/i386/pc_q35.c

@@ -89,6 +89,7 @@ static void pc_q35_init(MachineState *machine)
     PcGuestInfo *guest_info;
     ram_addr_t lowmem;
     DriveInfo *hd[MAX_SATA_PORTS];
+    MachineClass *mc = MACHINE_GET_CLASS(machine);
 
     /* Check whether RAM fits below 4G (leaving 1/2 GByte for IO memory
      * and 256 Mbytes for PCI Express Enhanced Configuration Access Mapping
@@ -163,7 +164,6 @@ static void pc_q35_init(MachineState *machine)
     guest_info->legacy_acpi_table_size = 0;
 
     if (smbios_defaults) {
-        MachineClass *mc = MACHINE_GET_CLASS(machine);
         /* These values are guest ABI, do not change */
         smbios_set_defaults("QEMU", "Standard PC (Q35 + ICH9, 2009)",
                             mc->name, smbios_legacy_mode, smbios_uuid_encoded);
@@ -250,7 +250,7 @@ static void pc_q35_init(MachineState *machine)
     }
 
     /* init basic PC hardware */
-    pc_basic_device_init(isa_bus, gsi, &rtc_state, &floppy,
+    pc_basic_device_init(isa_bus, gsi, &rtc_state, !mc->no_floppy, &floppy,
                          (pc_machine->vmport != ON_OFF_AUTO_ON), 0xff0104);
 
     /* connect pm stuff to lpc */
@@ -366,174 +366,119 @@ static void pc_compat_1_4(MachineState *machine)
     x86_cpu_compat_set_features("Westmere", FEAT_1_ECX, 0, CPUID_EXT_PCLMULQDQ);
 }
 
-static void pc_q35_init_2_3(MachineState *machine)
+#define DEFINE_Q35_MACHINE(suffix, name, compatfn, optionfn) \
+    static void pc_init_##suffix(MachineState *machine) \
+    { \
+        void (*compat)(MachineState *m) = (compatfn); \
+        if (compat) { \
+            compat(machine); \
+        } \
+        pc_q35_init(machine); \
+    } \
+    DEFINE_PC_MACHINE(suffix, name, pc_init_##suffix, optionfn)
+
+
+static void pc_q35_machine_options(MachineClass *m)
 {
-    pc_compat_2_3(machine);
+    pc_default_machine_options(m);
-    pc_q35_init(machine);
+    m->family = "pc_q35";
+    m->desc = "Standard PC (Q35 + ICH9, 2009)";
+    m->hot_add_cpu = pc_hot_add_cpu;
+    m->units_per_default_bus = 1;
 }
 
-static void pc_q35_init_2_2(MachineState *machine)
+static void pc_q35_2_4_machine_options(MachineClass *m)
 {
-    pc_compat_2_2(machine);
+    pc_q35_machine_options(m);
-    pc_q35_init(machine);
+    m->default_machine_opts = "firmware=bios-256k.bin";
+    m->default_display = "std";
+    m->no_floppy = 1;
+    m->alias = "q35";
 }
 
-static void pc_q35_init_2_1(MachineState *machine)
+DEFINE_Q35_MACHINE(v2_4, "pc-q35-2.4", NULL,
+                   pc_q35_2_4_machine_options);
+
+
+static void pc_q35_2_3_machine_options(MachineClass *m)
 {
-    pc_compat_2_1(machine);
+    pc_q35_2_4_machine_options(m);
-    pc_q35_init(machine);
+    m->alias = NULL;
+    SET_MACHINE_COMPAT(m, PC_COMPAT_2_3);
 }
 
-static void pc_q35_init_2_0(MachineState *machine)
+DEFINE_Q35_MACHINE(v2_3, "pc-q35-2.3", pc_compat_2_3,
+                   pc_q35_2_3_machine_options);
+
+
+static void pc_q35_2_2_machine_options(MachineClass *m)
 {
-    pc_compat_2_0(machine);
+    pc_q35_2_3_machine_options(m);
-    pc_q35_init(machine);
+    SET_MACHINE_COMPAT(m, PC_COMPAT_2_2);
 }
 
-static void pc_q35_init_1_7(MachineState *machine)
+DEFINE_Q35_MACHINE(v2_2, "pc-q35-2.2", pc_compat_2_2,
+                   pc_q35_2_2_machine_options);
+
+
+static void pc_q35_2_1_machine_options(MachineClass *m)
 {
-    pc_compat_1_7(machine);
+    pc_q35_2_2_machine_options(m);
-    pc_q35_init(machine);
+    m->default_display = NULL;
+    SET_MACHINE_COMPAT(m, PC_COMPAT_2_1);
 }
 
-static void pc_q35_init_1_6(MachineState *machine)
+DEFINE_Q35_MACHINE(v2_1, "pc-q35-2.1", pc_compat_2_1,
+                   pc_q35_2_1_machine_options);
+
+
+static void pc_q35_2_0_machine_options(MachineClass *m)
 {
-    pc_compat_1_6(machine);
+    pc_q35_2_1_machine_options(m);
-    pc_q35_init(machine);
+    SET_MACHINE_COMPAT(m, PC_COMPAT_2_0);
 }
 
-static void pc_q35_init_1_5(MachineState *machine)
+DEFINE_Q35_MACHINE(v2_0, "pc-q35-2.0", pc_compat_2_0,
+                   pc_q35_2_0_machine_options);
+
+
+static void pc_q35_1_7_machine_options(MachineClass *m)
 {
-    pc_compat_1_5(machine);
+    pc_q35_2_0_machine_options(m);
-    pc_q35_init(machine);
+    m->default_machine_opts = NULL;
+    SET_MACHINE_COMPAT(m, PC_COMPAT_1_7);
 }
 
-static void pc_q35_init_1_4(MachineState *machine)
+DEFINE_Q35_MACHINE(v1_7, "pc-q35-1.7", pc_compat_1_7,
+                   pc_q35_1_7_machine_options);
+
+
+static void pc_q35_1_6_machine_options(MachineClass *m)
 {
-    pc_compat_1_4(machine);
+    pc_q35_machine_options(m);
-    pc_q35_init(machine);
+    SET_MACHINE_COMPAT(m, PC_COMPAT_1_6);
 }
 
-#define PC_Q35_MACHINE_OPTIONS \
+DEFINE_Q35_MACHINE(v1_6, "pc-q35-1.6", pc_compat_1_6,
-    PC_DEFAULT_MACHINE_OPTIONS, \
+                   pc_q35_1_6_machine_options);
-    .family = "pc_q35", \
-    .desc = "Standard PC (Q35 + ICH9, 2009)", \
-    .hot_add_cpu = pc_hot_add_cpu, \
-    .units_per_default_bus = 1
 
-#define PC_Q35_2_4_MACHINE_OPTIONS                      \
-    PC_Q35_MACHINE_OPTIONS,                             \
-    .default_machine_opts = "firmware=bios-256k.bin",   \
-    .default_display = "std"
 
-static QEMUMachine pc_q35_machine_v2_4 = {
+static void pc_q35_1_5_machine_options(MachineClass *m)
-    PC_Q35_2_4_MACHINE_OPTIONS,
-    .name = "pc-q35-2.4",
-    .alias = "q35",
-    .init = pc_q35_init,
-};
-
-#define PC_Q35_2_3_MACHINE_OPTIONS PC_Q35_2_4_MACHINE_OPTIONS
-
-static QEMUMachine pc_q35_machine_v2_3 = {
-    PC_Q35_2_3_MACHINE_OPTIONS,
-    .name = "pc-q35-2.3",
-    .init = pc_q35_init_2_3,
-};
-
-#define PC_Q35_2_2_MACHINE_OPTIONS PC_Q35_2_3_MACHINE_OPTIONS
-
-static QEMUMachine pc_q35_machine_v2_2 = {
-    PC_Q35_2_2_MACHINE_OPTIONS,
-    .name = "pc-q35-2.2",
-    .init = pc_q35_init_2_2,
-};
-
-#define PC_Q35_2_1_MACHINE_OPTIONS                      \
-    PC_Q35_MACHINE_OPTIONS,                             \
-    .default_machine_opts = "firmware=bios-256k.bin"
-
-static QEMUMachine pc_q35_machine_v2_1 = {
-    PC_Q35_2_1_MACHINE_OPTIONS,
-    .name = "pc-q35-2.1",
-    .init = pc_q35_init_2_1,
-    .compat_props = (GlobalProperty[]) {
-        HW_COMPAT_2_1,
-        { /* end of list */ }
-    },
-};
-
-#define PC_Q35_2_0_MACHINE_OPTIONS PC_Q35_2_1_MACHINE_OPTIONS
-
-static QEMUMachine pc_q35_machine_v2_0 = {
-    PC_Q35_2_0_MACHINE_OPTIONS,
-    .name = "pc-q35-2.0",
-    .init = pc_q35_init_2_0,
-    .compat_props = (GlobalProperty[]) {
-        PC_COMPAT_2_0,
-        { /* end of list */ }
-    },
-};
-
-#define PC_Q35_1_7_MACHINE_OPTIONS PC_Q35_MACHINE_OPTIONS
-
-static QEMUMachine pc_q35_machine_v1_7 = {
-    PC_Q35_1_7_MACHINE_OPTIONS,
-    .name = "pc-q35-1.7",
-    .init = pc_q35_init_1_7,
-    .compat_props = (GlobalProperty[]) {
-        PC_COMPAT_1_7,
-        { /* end of list */ }
-    },
-};
-
-#define PC_Q35_1_6_MACHINE_OPTIONS PC_Q35_MACHINE_OPTIONS
-
-static QEMUMachine pc_q35_machine_v1_6 = {
-    PC_Q35_1_6_MACHINE_OPTIONS,
-    .name = "pc-q35-1.6",
-    .init = pc_q35_init_1_6,
-    .compat_props = (GlobalProperty[]) {
-        PC_COMPAT_1_6,
-        { /* end of list */ }
-    },
-};
-
-static QEMUMachine pc_q35_machine_v1_5 = {
-    PC_Q35_1_6_MACHINE_OPTIONS,
-    .name = "pc-q35-1.5",
-    .init = pc_q35_init_1_5,
-    .compat_props = (GlobalProperty[]) {
-        PC_COMPAT_1_5,
-        { /* end of list */ }
-    },
-};
-
-#define PC_Q35_1_4_MACHINE_OPTIONS \
-    PC_Q35_1_6_MACHINE_OPTIONS, \
-    .hot_add_cpu = NULL
-
-static QEMUMachine pc_q35_machine_v1_4 = {
-    PC_Q35_1_4_MACHINE_OPTIONS,
-    .name = "pc-q35-1.4",
-    .init = pc_q35_init_1_4,
-    .compat_props = (GlobalProperty[]) {
-        PC_COMPAT_1_4,
-        { /* end of list */ }
-    },
-};
-
-static void pc_q35_machine_init(void)
 {
-    qemu_register_pc_machine(&pc_q35_machine_v2_4);
+    pc_q35_1_6_machine_options(m);
-    qemu_register_pc_machine(&pc_q35_machine_v2_3);
+    SET_MACHINE_COMPAT(m, PC_COMPAT_1_5);
-    qemu_register_pc_machine(&pc_q35_machine_v2_2);
-    qemu_register_pc_machine(&pc_q35_machine_v2_1);
-    qemu_register_pc_machine(&pc_q35_machine_v2_0);
-    qemu_register_pc_machine(&pc_q35_machine_v1_7);
-    qemu_register_pc_machine(&pc_q35_machine_v1_6);
-    qemu_register_pc_machine(&pc_q35_machine_v1_5);
-    qemu_register_pc_machine(&pc_q35_machine_v1_4);
 }
 
-machine_init(pc_q35_machine_init);
+DEFINE_Q35_MACHINE(v1_5, "pc-q35-1.5", pc_compat_1_5,
+                   pc_q35_1_5_machine_options);
+
+
+static void pc_q35_1_4_machine_options(MachineClass *m)
+{
+    pc_q35_1_5_machine_options(m);
+    m->hot_add_cpu = NULL;
+    SET_MACHINE_COMPAT(m, PC_COMPAT_1_4);
+}
+
+DEFINE_Q35_MACHINE(v1_4, "pc-q35-1.4", pc_compat_1_4,
+                   pc_q35_1_4_machine_options);

hw/i386/ssdt-tpm.dsl

@@ -25,19 +25,5 @@ DefinitionBlock (
     0x1                 // OEM Revision
     )
 {
-    Scope(\_SB) {
+#include "ssdt-tpm-common.dsl"
-        /* TPM with emulated TPM TIS interface */
-        Device (TPM) {
-            Name (_HID, EisaID ("PNP0C31"))
-            Name (_CRS, ResourceTemplate ()
-            {
-                Memory32Fixed (ReadWrite, TPM_TIS_ADDR_BASE, TPM_TIS_ADDR_SIZE)
-                // older Linux tpm_tis drivers do not work with IRQ
-                //IRQNoFlags () {TPM_TIS_IRQ}
-            })
-            Method (_STA, 0, NotSerialized) {
-                Return (0x0F)
-            }
-        }
-    }
 }

hw/i386/ssdt-tpm.hex.generated

@@ -3,12 +3,12 @@ static unsigned char ssdt_tpm_aml[] = {
 0x53,
 0x44,
 0x54,
-0x5d,
+0x6b,
 0x0,
 0x0,
 0x0,
 0x1,
-0x1c,
+0x37,
 0x42,
 0x58,
 0x50,
@@ -36,15 +36,26 @@ static unsigned char ssdt_tpm_aml[] = {
 0x14,
 0x20,
 0x10,
-0x38,
+0x46,
+0x4,
 0x5c,
+0x2f,
+0x3,
 0x5f,
 0x53,
 0x42,
 0x5f,
+0x50,
+0x43,
+0x49,
+0x30,
+0x49,
+0x53,
+0x41,
+0x5f,
 0x5b,
 0x82,
-0x30,
+0x33,
 0x54,
 0x50,
 0x4d,
@@ -65,9 +76,9 @@ static unsigned char ssdt_tpm_aml[] = {
 0x52,
 0x53,
 0x11,
-0x11,
+0x14,
 0xa,
-0xe,
+0x11,
 0x86,
 0x9,
 0x0,
@@ -80,6 +91,9 @@ static unsigned char ssdt_tpm_aml[] = {
 0x50,
 0x0,
 0x0,
+0x22,
+0x20,
+0x0,
 0x79,
 0x0,
 0x14,

hw/i386/ssdt-tpm2.dsl

@@ -0,0 +1,29 @@
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+#include "hw/acpi/tpm.h"
+
+ACPI_EXTRACT_ALL_CODE ssdt_tpm2_aml
+
+DefinitionBlock (
+    "ssdt-tpm2.aml",    // Output Filename
+    "SSDT",             // Signature
+    0x01,               // SSDT Compliance Revision
+    "BXPC",             // OEMID
+    "BXSSDT",           // TABLE ID
+    0x1                 // OEM Revision
+    )
+{
+#include "ssdt-tpm-common.dsl"
+}

hw/i386/ssdt-tpm2.hex.generated

@@ -0,0 +1,109 @@
+static unsigned char ssdt_tpm2_aml[] = {
+0x53,
+0x53,
+0x44,
+0x54,
+0x6b,
+0x0,
+0x0,
+0x0,
+0x1,
+0x37,
+0x42,
+0x58,
+0x50,
+0x43,
+0x0,
+0x0,
+0x42,
+0x58,
+0x53,
+0x53,
+0x44,
+0x54,
+0x0,
+0x0,
+0x1,
+0x0,
+0x0,
+0x0,
+0x49,
+0x4e,
+0x54,
+0x4c,
+0x7,
+0x11,
+0x14,
+0x20,
+0x10,
+0x46,
+0x4,
+0x5c,
+0x2f,
+0x3,
+0x5f,
+0x53,
+0x42,
+0x5f,
+0x50,
+0x43,
+0x49,
+0x30,
+0x49,
+0x53,
+0x41,
+0x5f,
+0x5b,
+0x82,
+0x33,
+0x54,
+0x50,
+0x4d,
+0x5f,
+0x8,
+0x5f,
+0x48,
+0x49,
+0x44,
+0xc,
+0x41,
+0xd0,
+0xc,
+0x31,
+0x8,
+0x5f,
+0x43,
+0x52,
+0x53,
+0x11,
+0x14,
+0xa,
+0x11,
+0x86,
+0x9,
+0x0,
+0x1,
+0x0,
+0x0,
+0xd4,
+0xfe,
+0x0,
+0x50,
+0x0,
+0x0,
+0x22,
+0x20,
+0x0,
+0x79,
+0x0,
+0x14,
+0x9,
+0x5f,
+0x53,
+0x54,
+0x41,
+0x0,
+0xa4,
+0xa,
+0xf
+};

hw/input/virtio-input.c

@@ -166,7 +166,7 @@ static void virtio_input_set_config(VirtIODevice *vdev,
     virtio_notify_config(vdev);
 }
 
-static uint32_t virtio_input_get_features(VirtIODevice *vdev, uint32_t f)
+static uint64_t virtio_input_get_features(VirtIODevice *vdev, uint64_t f)
 {
     return f;
 }

hw/net/vhost_net.c

@@ -157,6 +157,7 @@ struct vhost_net *vhost_net_init(VhostNetOptions *options)
 
     net->dev.nvqs = 2;
     net->dev.vqs = net->vqs;
+    net->dev.vq_index = net->nc->queue_index;
 
     r = vhost_dev_init(&net->dev, options->opaque,
                        options->backend_type, options->force);
@@ -267,7 +268,7 @@ static void vhost_net_stop_one(struct vhost_net *net,
         for (file.index = 0; file.index < net->dev.nvqs; ++file.index) {
             const VhostOps *vhost_ops = net->dev.vhost_ops;
             int r = vhost_ops->vhost_call(&net->dev, VHOST_RESET_OWNER,
-                                          NULL);
+                                          &file);
             assert(r >= 0);
         }
     }

hw/net/virtio-net.c

@@ -435,7 +435,7 @@ static void virtio_net_set_queues(VirtIONet *n)
 
 static void virtio_net_set_multiqueue(VirtIONet *n, int multiqueue);
 
-static uint32_t virtio_net_get_features(VirtIODevice *vdev, uint32_t features)
+static uint64_t virtio_net_get_features(VirtIODevice *vdev, uint64_t features)
 {
     VirtIONet *n = VIRTIO_NET(vdev);
     NetClientState *nc = qemu_get_queue(n->nic);
@@ -468,9 +468,9 @@ static uint32_t virtio_net_get_features(VirtIODevice *vdev, uint32_t features)
     return vhost_net_get_features(get_vhost_net(nc->peer), features);
 }
 
-static uint32_t virtio_net_bad_features(VirtIODevice *vdev)
+static uint64_t virtio_net_bad_features(VirtIODevice *vdev)
 {
-    uint32_t features = 0;
+    uint64_t features = 0;
 
     /* Linux kernel 2.6.25.  It understood MAC (as everyone must),
      * but also these: */
@@ -1033,9 +1033,11 @@ static ssize_t virtio_net_receive(NetClientState *nc, const uint8_t *buf, size_t
                 return -1;
             error_report("virtio-net unexpected empty queue: "
                          "i %zd mergeable %d offset %zd, size %zd, "
-                    "guest hdr len %zd, host hdr len %zd guest features 0x%x",
+                         "guest hdr len %zd, host hdr len %zd "
+                         "guest features 0x%" PRIx64,
                          i, n->mergeable_rx_bufs, offset, size,
-                    n->guest_hdr_len, n->host_hdr_len, vdev->guest_features);
+                         n->guest_hdr_len, n->host_hdr_len,
+                         vdev->guest_features);
             exit(1);
         }
 
@@ -1301,39 +1303,8 @@ static void virtio_net_tx_bh(void *opaque)
 
 static void virtio_net_set_multiqueue(VirtIONet *n, int multiqueue)
 {
-    VirtIODevice *vdev = VIRTIO_DEVICE(n);
-    int i, max = multiqueue ? n->max_queues : 1;
-
     n->multiqueue = multiqueue;
 
-    for (i = 2; i < n->max_queues * 2 + 1; i++) {
-        virtio_del_queue(vdev, i);
-    }
-
-    for (i = 1; i < max; i++) {
-        n->vqs[i].rx_vq = virtio_add_queue(vdev, 256, virtio_net_handle_rx);
-        if (n->vqs[i].tx_timer) {
-            n->vqs[i].tx_vq =
-                virtio_add_queue(vdev, 256, virtio_net_handle_tx_timer);
-            n->vqs[i].tx_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL,
-                                                   virtio_net_tx_timer,
-                                                   &n->vqs[i]);
-        } else {
-            n->vqs[i].tx_vq =
-                virtio_add_queue(vdev, 256, virtio_net_handle_tx_bh);
-            n->vqs[i].tx_bh = qemu_bh_new(virtio_net_tx_bh, &n->vqs[i]);
-        }
-
-        n->vqs[i].tx_waiting = 0;
-        n->vqs[i].n = n;
-    }
-
-    /* Note: Minux Guests (version 3.2.1) use ctrl vq but don't ack
-     * VIRTIO_NET_F_CTRL_VQ. Create ctrl vq unconditionally to avoid
-     * breaking them.
-     */
-    n->ctrl_vq = virtio_add_queue(vdev, 64, virtio_net_handle_ctrl);
-
     virtio_net_set_queues(n);
 }
 
@@ -1549,7 +1520,7 @@ static void virtio_net_guest_notifier_mask(VirtIODevice *vdev, int idx,
                              vdev, idx, mask);
 }
 
-static void virtio_net_set_config_size(VirtIONet *n, uint32_t host_features)
+static void virtio_net_set_config_size(VirtIONet *n, uint64_t host_features)
 {
     int i, config_size = 0;
     virtio_add_feature(&host_features, VIRTIO_NET_F_MAC);
@@ -1586,17 +1557,15 @@ static void virtio_net_device_realize(DeviceState *dev, Error **errp)
     virtio_init(vdev, "virtio-net", VIRTIO_ID_NET, n->config_size);
 
     n->max_queues = MAX(n->nic_conf.peers.queues, 1);
-    if (n->max_queues * 2 + 1 > VIRTIO_PCI_QUEUE_MAX) {
+    if (n->max_queues * 2 + 1 > VIRTIO_QUEUE_MAX) {
         error_setg(errp, "Invalid number of queues (= %" PRIu32 "), "
                    "must be a positive integer less than %d.",
-                   n->max_queues, (VIRTIO_PCI_QUEUE_MAX - 1) / 2);
+                   n->max_queues, (VIRTIO_QUEUE_MAX - 1) / 2);
         virtio_cleanup(vdev);
         return;
     }
     n->vqs = g_malloc0(sizeof(VirtIONetQueue) * n->max_queues);
-    n->vqs[0].rx_vq = virtio_add_queue(vdev, 256, virtio_net_handle_rx);
     n->curr_queues = 1;
-    n->vqs[0].n = n;
     n->tx_timeout = n->net_conf.txtimer;
 
     if (n->net_conf.tx && strcmp(n->net_conf.tx, "timer")
@@ -1607,16 +1576,24 @@ static void virtio_net_device_realize(DeviceState *dev, Error **errp)
         error_report("Defaulting to \"bh\"");
     }
 
+    for (i = 0; i < n->max_queues; i++) {
+        n->vqs[i].rx_vq = virtio_add_queue(vdev, 256, virtio_net_handle_rx);
         if (n->net_conf.tx && !strcmp(n->net_conf.tx, "timer")) {
-        n->vqs[0].tx_vq = virtio_add_queue(vdev, 256,
+            n->vqs[i].tx_vq =
-                                           virtio_net_handle_tx_timer);
+                virtio_add_queue(vdev, 256, virtio_net_handle_tx_timer);
-        n->vqs[0].tx_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, virtio_net_tx_timer,
+            n->vqs[i].tx_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL,
-                                               &n->vqs[0]);
+                                              virtio_net_tx_timer,
+                                              &n->vqs[i]);
         } else {
-        n->vqs[0].tx_vq = virtio_add_queue(vdev, 256,
+            n->vqs[i].tx_vq =
-                                           virtio_net_handle_tx_bh);
+                virtio_add_queue(vdev, 256, virtio_net_handle_tx_bh);
-        n->vqs[0].tx_bh = qemu_bh_new(virtio_net_tx_bh, &n->vqs[0]);
+            n->vqs[i].tx_bh = qemu_bh_new(virtio_net_tx_bh, &n->vqs[i]);
         }
+
+        n->vqs[i].tx_waiting = 0;
+        n->vqs[i].n = n;
+    }
+
     n->ctrl_vq = virtio_add_queue(vdev, 64, virtio_net_handle_ctrl);
     qemu_macaddr_default_if_unset(&n->nic_conf.macaddr);
     memcpy(&n->mac[0], &n->nic_conf.macaddr, sizeof(n->mac));

hw/pci/msi.c

@@ -291,8 +291,16 @@ void msi_notify(PCIDevice *dev, unsigned int vector)
                    "notify vector 0x%x"
                    " address: 0x%"PRIx64" data: 0x%"PRIx32"\n",
                    vector, msg.address, msg.data);
+    msi_send_message(dev, msg);
+}
+
+void msi_send_message(PCIDevice *dev, MSIMessage msg)
+{
+    MemTxAttrs attrs = {};
+
+    attrs.stream_id = (pci_bus_num(dev->bus) << 8) | dev->devfn;
     address_space_stl_le(&dev->bus_master_as, msg.address, msg.data,
-                         MEMTXATTRS_UNSPECIFIED, NULL);
+                         attrs, NULL);
 }
 
 /* Normally called by pci_default_write_config(). */

hw/pci/msix.c

@@ -443,8 +443,7 @@ void msix_notify(PCIDevice *dev, unsigned vector)
 
     msg = msix_get_message(dev, vector);
 
-    address_space_stl_le(&dev->bus_master_as, msg.address, msg.data,
+    msi_send_message(dev, msg);
-                         MEMTXATTRS_UNSPECIFIED, NULL);
 }
 
 void msix_reset(PCIDevice *dev)

hw/ppc/spapr.c

@@ -1815,15 +1815,21 @@ static const TypeInfo spapr_machine_info = {
     },
 };
 
+#define SPAPR_COMPAT_2_3 \
+        HW_COMPAT_2_3
+
 #define SPAPR_COMPAT_2_2 \
+        SPAPR_COMPAT_2_3 \
+        HW_COMPAT_2_2 \
         {\
             .driver   = TYPE_SPAPR_PCI_HOST_BRIDGE,\
             .property = "mem_win_size",\
             .value    = "0x20000000",\
-        }
+        },
 
 #define SPAPR_COMPAT_2_1 \
-        SPAPR_COMPAT_2_2
+        SPAPR_COMPAT_2_2 \
+        HW_COMPAT_2_1
 
 static void spapr_compat_2_3(Object *obj)
 {
@@ -1861,8 +1867,7 @@ static void spapr_machine_2_1_class_init(ObjectClass *oc, void *data)
 {
     MachineClass *mc = MACHINE_CLASS(oc);
     static GlobalProperty compat_props[] = {
-        HW_COMPAT_2_1,
+        SPAPR_COMPAT_2_1
-        SPAPR_COMPAT_2_1,
         { /* end of list */ }
     };
 
@@ -1881,7 +1886,7 @@ static const TypeInfo spapr_machine_2_1_info = {
 static void spapr_machine_2_2_class_init(ObjectClass *oc, void *data)
 {
     static GlobalProperty compat_props[] = {
-        SPAPR_COMPAT_2_2,
+        SPAPR_COMPAT_2_2
         { /* end of list */ }
     };
     MachineClass *mc = MACHINE_CLASS(oc);

hw/s390x/s390-virtio-bus.c

@@ -45,6 +45,8 @@
     do { } while (0)
 #endif
 
+#define VIRTIO_S390_QUEUE_MAX 64
+
 static void virtio_s390_bus_new(VirtioBusState *bus, size_t bus_size,
                                 VirtIOS390Device *dev);
 
@@ -139,8 +141,6 @@ static void s390_virtio_device_init(VirtIOS390Device *dev,
 
     bus->dev_offs += dev_len;
 
-    dev->host_features = virtio_bus_get_vdev_features(&dev->bus,
-                                                      dev->host_features);
     s390_virtio_device_sync(dev);
     s390_virtio_reset_idx(dev);
     if (dev->qdev.hotplugged) {
@@ -354,7 +354,7 @@ static ram_addr_t s390_virtio_device_num_vq(VirtIOS390Device *dev)
     VirtIODevice *vdev = dev->vdev;
     int num_vq;
 
-    for (num_vq = 0; num_vq < VIRTIO_PCI_QUEUE_MAX; num_vq++) {
+    for (num_vq = 0; num_vq < VIRTIO_S390_QUEUE_MAX; num_vq++) {
         if (!virtio_queue_get_num(vdev, num_vq)) {
             break;
         }
@@ -433,7 +433,8 @@ void s390_virtio_device_sync(VirtIOS390Device *dev)
     cur_offs += num_vq * VIRTIO_VQCONFIG_LEN;
 
     /* Sync feature bitmap */
-    address_space_stl_le(&address_space_memory, cur_offs, dev->host_features,
+    address_space_stl_le(&address_space_memory, cur_offs,
+                         dev->vdev->host_features,
                          MEMTXATTRS_UNSPECIFIED, NULL);
 
     dev->feat_offs = cur_offs + dev->feat_len;
@@ -476,7 +477,7 @@ VirtIOS390Device *s390_virtio_bus_find_vring(VirtIOS390Bus *bus,
     QTAILQ_FOREACH(kid, &bus->bus.children, sibling) {
         VirtIOS390Device *dev = (VirtIOS390Device *)kid->child;
 
-        for(i = 0; i < VIRTIO_PCI_QUEUE_MAX; i++) {
+        for (i = 0; i < VIRTIO_S390_QUEUE_MAX; i++) {
             if (!virtio_queue_get_addr(dev->vdev, i))
                 break;
             if (virtio_queue_get_addr(dev->vdev, i) == mem) {
@@ -528,10 +529,17 @@ static void virtio_s390_notify(DeviceState *d, uint16_t vector)
     s390_virtio_irq(0, token);
 }
 
-static unsigned virtio_s390_get_features(DeviceState *d)
+static void virtio_s390_device_plugged(DeviceState *d, Error **errp)
 {
     VirtIOS390Device *dev = to_virtio_s390_device(d);
-    return dev->host_features;
+    VirtIODevice *vdev = virtio_bus_get_device(&dev->bus);
+    int n = virtio_get_num_queues(vdev);
+
+    if (n > VIRTIO_S390_QUEUE_MAX) {
+        error_setg(errp, "The nubmer of virtqueues %d "
+                   "exceeds s390 limit %d", n,
+                   VIRTIO_S390_QUEUE_MAX);
+    }
 }
 
 /**************** S390 Virtio Bus Device Descriptions *******************/
@@ -626,16 +634,10 @@ static void s390_virtio_busdev_reset(DeviceState *dev)
     virtio_reset(_dev->vdev);
 }
 
-static Property virtio_s390_properties[] = {
-    DEFINE_VIRTIO_COMMON_FEATURES(VirtIOS390Device, host_features),
-    DEFINE_PROP_END_OF_LIST(),
-};
-
 static void virtio_s390_device_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
 
-    dc->props = virtio_s390_properties;
     dc->realize = s390_virtio_busdev_realize;
     dc->bus_type = TYPE_S390_VIRTIO_BUS;
     dc->reset = s390_virtio_busdev_reset;
@@ -733,7 +735,7 @@ static void virtio_s390_bus_class_init(ObjectClass *klass, void *data)
     BusClass *bus_class = BUS_CLASS(klass);
     bus_class->max_dev = 1;
     k->notify = virtio_s390_notify;
-    k->get_features = virtio_s390_get_features;
+    k->device_plugged = virtio_s390_device_plugged;
 }
 
 static const TypeInfo virtio_s390_bus_info = {

hw/s390x/s390-virtio-bus.h

@@ -92,7 +92,6 @@ struct VirtIOS390Device {
     ram_addr_t feat_offs;
     uint8_t feat_len;
     VirtIODevice *vdev;
-    uint32_t host_features;
     VirtioBusState bus;
 };
 

hw/s390x/s390-virtio-ccw.c

@@ -67,7 +67,7 @@ static int virtio_ccw_hcall_notify(const uint64_t *args)
     if (!sch || !css_subch_visible(sch)) {
         return -EINVAL;
     }
-    if (queue >= VIRTIO_PCI_QUEUE_MAX) {
+    if (queue >= VIRTIO_CCW_QUEUE_MAX) {
         return -EINVAL;
     }
     virtio_queue_notify(virtio_ccw_get_vdev(sch), queue);

hw/s390x/virtio-ccw.c

@@ -170,7 +170,7 @@ static void virtio_ccw_start_ioeventfd(VirtioCcwDevice *dev)
         return;
     }
     vdev = virtio_bus_get_device(&dev->bus);
-    for (n = 0; n < VIRTIO_PCI_QUEUE_MAX; n++) {
+    for (n = 0; n < VIRTIO_CCW_QUEUE_MAX; n++) {
         if (!virtio_queue_get_num(vdev, n)) {
             continue;
         }
@@ -205,7 +205,7 @@ static void virtio_ccw_stop_ioeventfd(VirtioCcwDevice *dev)
         return;
     }
     vdev = virtio_bus_get_device(&dev->bus);
-    for (n = 0; n < VIRTIO_PCI_QUEUE_MAX; n++) {
+    for (n = 0; n < VIRTIO_CCW_QUEUE_MAX; n++) {
         if (!virtio_queue_get_num(vdev, n)) {
             continue;
         }
@@ -266,7 +266,7 @@ static int virtio_ccw_set_vqs(SubchDev *sch, uint64_t addr, uint32_t align,
 {
     VirtIODevice *vdev = virtio_ccw_get_vdev(sch);
 
-    if (index >= VIRTIO_PCI_QUEUE_MAX) {
+    if (index >= VIRTIO_CCW_QUEUE_MAX) {
         return -EINVAL;
     }
 
@@ -291,7 +291,7 @@ static int virtio_ccw_set_vqs(SubchDev *sch, uint64_t addr, uint32_t align,
         virtio_queue_set_vector(vdev, index, index);
     }
     /* tell notify handler in case of config change */
-    vdev->config_vector = VIRTIO_PCI_QUEUE_MAX;
+    vdev->config_vector = VIRTIO_CCW_QUEUE_MAX;
     return 0;
 }
 
@@ -381,8 +381,8 @@ static int virtio_ccw_cb(SubchDev *sch, CCW1 ccw)
                                                 + sizeof(features.features),
                                                 MEMTXATTRS_UNSPECIFIED,
                                                 NULL);
-            if (features.index < ARRAY_SIZE(dev->host_features)) {
+            if (features.index == 0) {
-                features.features = dev->host_features[features.index];
+                features.features = vdev->host_features;
             } else {
                 /* Return zeroes if the guest supports more feature bits. */
                 features.features = 0;
@@ -417,7 +417,7 @@ static int virtio_ccw_cb(SubchDev *sch, CCW1 ccw)
                                                      ccw.cda,
                                                      MEMTXATTRS_UNSPECIFIED,
                                                      NULL);
-            if (features.index < ARRAY_SIZE(dev->host_features)) {
+            if (features.index == 0) {
                 virtio_set_features(vdev, features.features);
             } else {
                 /*
@@ -573,7 +573,7 @@ static int virtio_ccw_cb(SubchDev *sch, CCW1 ccw)
                                                     ccw.cda,
                                                     MEMTXATTRS_UNSPECIFIED,
                                                     NULL);
-            if (vq_config.index >= VIRTIO_PCI_QUEUE_MAX) {
+            if (vq_config.index >= VIRTIO_CCW_QUEUE_MAX) {
                 ret = -EINVAL;
                 break;
             }
@@ -896,44 +896,17 @@ static void virtio_ccw_balloon_realize(VirtioCcwDevice *ccw_dev, Error **errp)
     }
 }
 
-static void balloon_ccw_stats_get_all(Object *obj, struct Visitor *v,
-                                      void *opaque, const char *name,
-                                      Error **errp)
-{
-    VirtIOBalloonCcw *dev = opaque;
-    object_property_get(OBJECT(&dev->vdev), v, "guest-stats", errp);
-}
-
-static void balloon_ccw_stats_get_poll_interval(Object *obj, struct Visitor *v,
-                                                void *opaque, const char *name,
-                                                Error **errp)
-{
-    VirtIOBalloonCcw *dev = opaque;
-    object_property_get(OBJECT(&dev->vdev), v, "guest-stats-polling-interval",
-                        errp);
-}
-
-static void balloon_ccw_stats_set_poll_interval(Object *obj, struct Visitor *v,
-                                                void *opaque, const char *name,
-                                                Error **errp)
-{
-    VirtIOBalloonCcw *dev = opaque;
-    object_property_set(OBJECT(&dev->vdev), v, "guest-stats-polling-interval",
-                        errp);
-}
-
 static void virtio_ccw_balloon_instance_init(Object *obj)
 {
     VirtIOBalloonCcw *dev = VIRTIO_BALLOON_CCW(obj);
+
     virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
                                 TYPE_VIRTIO_BALLOON);
-    object_property_add(obj, "guest-stats", "guest statistics",
+    object_property_add_alias(obj, "guest-stats", OBJECT(&dev->vdev),
-                        balloon_ccw_stats_get_all, NULL, NULL, dev, NULL);
+                              "guest-stats", &error_abort);
-
+    object_property_add_alias(obj, "guest-stats-polling-interval",
-    object_property_add(obj, "guest-stats-polling-interval", "int",
+                              OBJECT(&dev->vdev),
-                        balloon_ccw_stats_get_poll_interval,
+                              "guest-stats-polling-interval", &error_abort);
-                        balloon_ccw_stats_set_poll_interval,
-                        NULL, dev, NULL);
 }
 
 static void virtio_ccw_scsi_realize(VirtioCcwDevice *ccw_dev, Error **errp)
@@ -1052,7 +1025,7 @@ static void virtio_ccw_notify(DeviceState *d, uint16_t vector)
         return;
     }
 
-    if (vector < VIRTIO_PCI_QUEUE_MAX) {
+    if (vector < VIRTIO_CCW_QUEUE_MAX) {
         if (!dev->indicators) {
             return;
         }
@@ -1098,14 +1071,6 @@ static void virtio_ccw_notify(DeviceState *d, uint16_t vector)
     }
 }
 
-static unsigned virtio_ccw_get_features(DeviceState *d)
-{
-    VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
-
-    /* Only the first 32 feature bits are used. */
-    return dev->host_features[0];
-}
-
 static void virtio_ccw_reset(DeviceState *d)
 {
     VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
@@ -1413,19 +1378,22 @@ static int virtio_ccw_load_config(DeviceState *d, QEMUFile *f)
 }
 
 /* This is called by virtio-bus just after the device is plugged. */
-static void virtio_ccw_device_plugged(DeviceState *d)
+static void virtio_ccw_device_plugged(DeviceState *d, Error **errp)
 {
     VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
+    VirtIODevice *vdev = virtio_bus_get_device(&dev->bus);
     SubchDev *sch = dev->sch;
+    int n = virtio_get_num_queues(vdev);
+
+    if (virtio_get_num_queues(vdev) > VIRTIO_CCW_QUEUE_MAX) {
+        error_setg(errp, "The nubmer of virtqueues %d "
+                   "exceeds ccw limit %d", n,
+                   VIRTIO_CCW_QUEUE_MAX);
+        return;
+    }
 
     sch->id.cu_model = virtio_bus_get_vdev_id(&dev->bus);
 
-    /* Only the first 32 feature bits are used. */
-    virtio_add_feature(&dev->host_features[0], VIRTIO_F_NOTIFY_ON_EMPTY);
-    virtio_add_feature(&dev->host_features[0], VIRTIO_F_BAD_FEATURE);
-    dev->host_features[0] = virtio_bus_get_vdev_features(&dev->bus,
-                                                         dev->host_features[0]);
-
     css_generate_sch_crws(sch->cssid, sch->ssid, sch->schid,
                           d->hotplugged, 1);
 }
@@ -1675,16 +1643,10 @@ static void virtio_ccw_busdev_unplug(HotplugHandler *hotplug_dev,
     object_unparent(OBJECT(dev));
 }
 
-static Property virtio_ccw_properties[] = {
-    DEFINE_VIRTIO_COMMON_FEATURES(VirtioCcwDevice, host_features[0]),
-    DEFINE_PROP_END_OF_LIST(),
-};
-
 static void virtio_ccw_device_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
 
-    dc->props = virtio_ccw_properties;
     dc->realize = virtio_ccw_busdev_realize;
     dc->exit = virtio_ccw_busdev_exit;
     dc->bus_type = TYPE_VIRTUAL_CSS_BUS;
@@ -1749,7 +1711,6 @@ static void virtio_ccw_bus_class_init(ObjectClass *klass, void *data)
 
     bus_class->max_dev = 1;
     k->notify = virtio_ccw_notify;
-    k->get_features = virtio_ccw_get_features;
     k->vmstate_change = virtio_ccw_vmstate_change;
     k->query_guest_notifiers = virtio_ccw_query_guest_notifiers;
     k->set_host_notifier = virtio_ccw_set_host_notifier;

hw/s390x/virtio-ccw.h

@@ -68,9 +68,6 @@ typedef struct VirtIOCCWDeviceClass {
     int (*exit)(VirtioCcwDevice *dev);
 } VirtIOCCWDeviceClass;
 
-/* Change here if we want to support more feature bits. */
-#define VIRTIO_CCW_FEATURE_SIZE 1
-
 /* Performance improves when virtqueue kick processing is decoupled from the
  * vcpu thread using ioeventfd for some devices. */
 #define VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT 1
@@ -88,7 +85,6 @@ struct VirtioCcwDevice {
     DeviceState parent_obj;
     SubchDev *sch;
     char *bus_id;
-    uint32_t host_features[VIRTIO_CCW_FEATURE_SIZE];
     VirtioBusState bus;
     bool ioeventfd_started;
     bool ioeventfd_disabled;

hw/scsi/vhost-scsi.c

@@ -151,8 +151,8 @@ static void vhost_scsi_stop(VHostSCSI *s)
     vhost_dev_disable_notifiers(&s->dev, vdev);
 }
 
-static uint32_t vhost_scsi_get_features(VirtIODevice *vdev,
+static uint64_t vhost_scsi_get_features(VirtIODevice *vdev,
-                                        uint32_t features)
+                                        uint64_t features)
 {
     VHostSCSI *s = VHOST_SCSI(vdev);
 

hw/scsi/virtio-scsi.c

@@ -628,8 +628,8 @@ static void virtio_scsi_set_config(VirtIODevice *vdev,
     vs->cdb_size = virtio_ldl_p(vdev, &scsiconf->cdb_size);
 }
 
-static uint32_t virtio_scsi_get_features(VirtIODevice *vdev,
+static uint64_t virtio_scsi_get_features(VirtIODevice *vdev,
-                                         uint32_t requested_features)
+                                         uint64_t requested_features)
 {
     VirtIOSCSI *s = VIRTIO_SCSI(vdev);
 
@@ -830,10 +830,10 @@ void virtio_scsi_common_realize(DeviceState *dev, Error **errp,
                 sizeof(VirtIOSCSIConfig));
 
     if (s->conf.num_queues == 0 ||
-            s->conf.num_queues > VIRTIO_PCI_QUEUE_MAX - 2) {
+            s->conf.num_queues > VIRTIO_QUEUE_MAX - 2) {
         error_setg(errp, "Invalid number of queues (= %" PRIu32 "), "
                          "must be a positive integer less than %d.",
-                   s->conf.num_queues, VIRTIO_PCI_QUEUE_MAX - 2);
+                   s->conf.num_queues, VIRTIO_QUEUE_MAX - 2);
         virtio_cleanup(vdev);
         return;
     }

hw/tpm/Makefile.objs

@@ -1,2 +1,2 @@
 common-obj-$(CONFIG_TPM_TIS) += tpm_tis.o
-common-obj-$(CONFIG_TPM_PASSTHROUGH) += tpm_passthrough.o
+common-obj-$(CONFIG_TPM_PASSTHROUGH) += tpm_passthrough.o tpm_util.o

hw/tpm/tpm_int.h

@@ -29,6 +29,7 @@ struct TPMState {
 
     char *backend;
     TPMBackend *be_driver;
+    TPMVersion be_tpm_version;
 };
 
 #define TPM(obj) OBJECT_CHECK(TPMState, (obj), TYPE_TPM_TIS)
@@ -65,4 +66,10 @@ struct tpm_resp_hdr {
 #define TPM_ORD_ContinueSelfTest  0x53
 #define TPM_ORD_GetTicks          0xf1
 
+
+/* TPM2 defines */
+#define TPM2_ST_NO_SESSIONS       0x8001
+
+#define TPM2_CC_ReadClock         0x00000181
+
 #endif /* TPM_TPM_INT_H */

hw/tpm/tpm_passthrough.c

@@ -33,6 +33,7 @@
 #include "hw/i386/pc.h"
 #include "sysemu/tpm_backend_int.h"
 #include "tpm_tis.h"
+#include "tpm_util.h"
 
 #define DEBUG_TPM 0
 
@@ -69,6 +70,8 @@ struct TPMPassthruState {
     bool tpm_op_canceled;
     int cancel_fd;
     bool had_startup_error;
+
+    TPMVersion tpm_version;
 };
 
 typedef struct TPMPassthruState TPMPassthruState;
@@ -267,6 +270,13 @@ static bool tpm_passthrough_get_tpm_established_flag(TPMBackend *tb)
     return false;
 }
 
+static int tpm_passthrough_reset_tpm_established_flag(TPMBackend *tb,
+                                                      uint8_t locty)
+{
+    /* only a TPM 2.0 will support this */
+    return 0;
+}
+
 static bool tpm_passthrough_get_startup_error(TPMBackend *tb)
 {
     TPMPassthruState *tpm_pt = TPM_PASSTHROUGH(tb);
@@ -324,56 +334,11 @@ static const char *tpm_passthrough_create_desc(void)
     return "Passthrough TPM backend driver";
 }
 
-/*
+static TPMVersion tpm_passthrough_get_tpm_version(TPMBackend *tb)
- * A basic test of a TPM device. We expect a well formatted response header
- * (error response is fine) within one second.
- */
-static int tpm_passthrough_test_tpmdev(int fd)
 {
-    struct tpm_req_hdr req = {
+    TPMPassthruState *tpm_pt = TPM_PASSTHROUGH(tb);
-        .tag = cpu_to_be16(TPM_TAG_RQU_COMMAND),
-        .len = cpu_to_be32(sizeof(req)),
-        .ordinal = cpu_to_be32(TPM_ORD_GetTicks),
-    };
-    struct tpm_resp_hdr *resp;
-    fd_set readfds;
-    int n;
-    struct timeval tv = {
-        .tv_sec = 1,
-        .tv_usec = 0,
-    };
-    unsigned char buf[1024];
 
-    n = write(fd, &req, sizeof(req));
+    return tpm_pt->tpm_version;
-    if (n < 0) {
-        return errno;
-    }
-    if (n != sizeof(req)) {
-        return EFAULT;
-    }
-
-    FD_ZERO(&readfds);
-    FD_SET(fd, &readfds);
-
-    /* wait for a second */
-    n = select(fd + 1, &readfds, NULL, NULL, &tv);
-    if (n != 1) {
-        return errno;
-    }
-
-    n = read(fd, &buf, sizeof(buf));
-    if (n < sizeof(struct tpm_resp_hdr)) {
-        return EFAULT;
-    }
-
-    resp = (struct tpm_resp_hdr *)buf;
-    /* check the header */
-    if (be16_to_cpu(resp->tag) != TPM_TAG_RSP_COMMAND ||
-        be32_to_cpu(resp->len) != n) {
-        return EBADMSG;
-    }
-
-    return 0;
 }
 
 /*
@@ -443,7 +408,7 @@ static int tpm_passthrough_handle_device_opts(QemuOpts *opts, TPMBackend *tb)
         goto err_free_parameters;
     }
 
-    if (tpm_passthrough_test_tpmdev(tpm_pt->tpm_fd)) {
+    if (tpm_util_test_tpmdev(tpm_pt->tpm_fd, &tpm_pt->tpm_version)) {
         error_report("'%s' is not a TPM device.",
                      tpm_pt->tpm_dev);
         goto err_close_tpmdev;
@@ -540,6 +505,8 @@ static const TPMDriverOps tpm_passthrough_driver = {
     .deliver_request          = tpm_passthrough_deliver_request,
     .cancel_cmd               = tpm_passthrough_cancel_cmd,
     .get_tpm_established_flag = tpm_passthrough_get_tpm_established_flag,
+    .reset_tpm_established_flag = tpm_passthrough_reset_tpm_established_flag,
+    .get_tpm_version          = tpm_passthrough_get_tpm_version,
 };
 
 static void tpm_passthrough_inst_init(Object *obj)

hw/tpm/tpm_tis.c

@@ -17,6 +17,9 @@
  * supports version 1.3, 21 March 2013
  * In the developers menu choose the PC Client section then find the TIS
  * specification.
+ *
+ * TPM TIS for TPM 2 implementation following TCG PC Client Platform
+ * TPM Profile (PTP) Specification, Familiy 2.0, Revision 00.43
  */
 
 #include "sysemu/tpm_backend.h"
@@ -29,6 +32,7 @@
 #include "tpm_tis.h"
 #include "qemu-common.h"
 #include "qemu/main-loop.h"
+#include "sysemu/tpm_backend.h"
 
 #define DEBUG_TIS 0
 
@@ -49,6 +53,7 @@
 #define TPM_TIS_REG_INTF_CAPABILITY       0x14
 #define TPM_TIS_REG_STS                   0x18
 #define TPM_TIS_REG_DATA_FIFO             0x24
+#define TPM_TIS_REG_INTERFACE_ID          0x30
 #define TPM_TIS_REG_DATA_XFIFO            0x80
 #define TPM_TIS_REG_DATA_XFIFO_END        0xbc
 #define TPM_TIS_REG_DID_VID               0xf00
@@ -57,6 +62,12 @@
 /* vendor-specific registers */
 #define TPM_TIS_REG_DEBUG                 0xf90
 
+#define TPM_TIS_STS_TPM_FAMILY_MASK         (0x3 << 26)/* TPM 2.0 */
+#define TPM_TIS_STS_TPM_FAMILY1_2           (0 << 26)  /* TPM 2.0 */
+#define TPM_TIS_STS_TPM_FAMILY2_0           (1 << 26)  /* TPM 2.0 */
+#define TPM_TIS_STS_RESET_ESTABLISHMENT_BIT (1 << 25)  /* TPM 2.0 */
+#define TPM_TIS_STS_COMMAND_CANCEL          (1 << 24)  /* TPM 2.0 */
+
 #define TPM_TIS_STS_VALID                 (1 << 7)
 #define TPM_TIS_STS_COMMAND_READY         (1 << 6)
 #define TPM_TIS_STS_TPM_GO                (1 << 5)
@@ -102,16 +113,43 @@
 #endif
 
 #define TPM_TIS_CAP_INTERFACE_VERSION1_3 (2 << 28)
+#define TPM_TIS_CAP_INTERFACE_VERSION1_3_FOR_TPM2_0 (3 << 28)
 #define TPM_TIS_CAP_DATA_TRANSFER_64B    (3 << 9)
 #define TPM_TIS_CAP_DATA_TRANSFER_LEGACY (0 << 9)
 #define TPM_TIS_CAP_BURST_COUNT_DYNAMIC  (0 << 8)
 #define TPM_TIS_CAP_INTERRUPT_LOW_LEVEL  (1 << 4) /* support is mandatory */
-#define TPM_TIS_CAPABILITIES_SUPPORTED   (TPM_TIS_CAP_INTERRUPT_LOW_LEVEL | \
+#define TPM_TIS_CAPABILITIES_SUPPORTED1_3 \
+    (TPM_TIS_CAP_INTERRUPT_LOW_LEVEL | \
      TPM_TIS_CAP_BURST_COUNT_DYNAMIC | \
      TPM_TIS_CAP_DATA_TRANSFER_64B | \
      TPM_TIS_CAP_INTERFACE_VERSION1_3 | \
      TPM_TIS_INTERRUPTS_SUPPORTED)
 
+#define TPM_TIS_CAPABILITIES_SUPPORTED2_0 \
+    (TPM_TIS_CAP_INTERRUPT_LOW_LEVEL | \
+     TPM_TIS_CAP_BURST_COUNT_DYNAMIC | \
+     TPM_TIS_CAP_DATA_TRANSFER_64B | \
+     TPM_TIS_CAP_INTERFACE_VERSION1_3_FOR_TPM2_0 | \
+     TPM_TIS_INTERRUPTS_SUPPORTED)
+
+#define TPM_TIS_IFACE_ID_INTERFACE_TIS1_3   (0xf)     /* TPM 2.0 */
+#define TPM_TIS_IFACE_ID_INTERFACE_FIFO     (0x0)     /* TPM 2.0 */
+#define TPM_TIS_IFACE_ID_INTERFACE_VER_FIFO (0 << 4)  /* TPM 2.0 */
+#define TPM_TIS_IFACE_ID_CAP_5_LOCALITIES   (1 << 8)  /* TPM 2.0 */
+#define TPM_TIS_IFACE_ID_CAP_TIS_SUPPORTED  (1 << 13) /* TPM 2.0 */
+#define TPM_TIS_IFACE_ID_INT_SEL_LOCK       (1 << 19) /* TPM 2.0 */
+
+#define TPM_TIS_IFACE_ID_SUPPORTED_FLAGS1_3 \
+    (TPM_TIS_IFACE_ID_INTERFACE_TIS1_3 | \
+     (~0 << 4)/* all of it is don't care */)
+
+/* if backend was a TPM 2.0: */
+#define TPM_TIS_IFACE_ID_SUPPORTED_FLAGS2_0 \
+    (TPM_TIS_IFACE_ID_INTERFACE_FIFO | \
+     TPM_TIS_IFACE_ID_INTERFACE_VER_FIFO | \
+     TPM_TIS_IFACE_ID_CAP_5_LOCALITIES | \
+     TPM_TIS_IFACE_ID_CAP_TIS_SUPPORTED)
+
 #define TPM_TIS_TPM_DID       0x0001
 #define TPM_TIS_TPM_VID       PCI_VENDOR_ID_IBM
 #define TPM_TIS_TPM_RID       0x0001
@@ -154,7 +192,8 @@ static void tpm_tis_show_buffer(const TPMSizedBuffer *sb, const char *string)
 
 /*
  * Set the given flags in the STS register by clearing the register but
- * preserving the SELFTEST_DONE flag and then setting the new flags.
+ * preserving the SELFTEST_DONE and TPM_FAMILY_MASK flags and then setting
+ * the new flags.
  *
  * The SELFTEST_DONE flag is acquired from the backend that determines it by
  * peeking into TPM commands.
@@ -166,7 +205,7 @@ static void tpm_tis_show_buffer(const TPMSizedBuffer *sb, const char *string)
  */
 static void tpm_tis_sts_set(TPMLocality *l, uint32_t flags)
 {
-    l->sts &= TPM_TIS_STS_SELFTEST_DONE;
+    l->sts &= TPM_TIS_STS_SELFTEST_DONE | TPM_TIS_STS_TPM_FAMILY_MASK;
     l->sts |= flags;
 }
 
@@ -489,7 +528,17 @@ static uint64_t tpm_tis_mmio_read(void *opaque, hwaddr addr,
         val = tis->loc[locty].ints;
         break;
     case TPM_TIS_REG_INTF_CAPABILITY:
-        val = TPM_TIS_CAPABILITIES_SUPPORTED;
+        switch (s->be_tpm_version) {
+        case TPM_VERSION_UNSPEC:
+            val = 0;
+            break;
+        case TPM_VERSION_1_2:
+            val = TPM_TIS_CAPABILITIES_SUPPORTED1_3;
+            break;
+        case TPM_VERSION_2_0:
+            val = TPM_TIS_CAPABILITIES_SUPPORTED2_0;
+            break;
+        }
         break;
     case TPM_TIS_REG_STS:
         if (tis->active_locty == locty) {
@@ -536,6 +585,9 @@ static uint64_t tpm_tis_mmio_read(void *opaque, hwaddr addr,
             shift = 0; /* no more adjustments */
         }
         break;
+    case TPM_TIS_REG_INTERFACE_ID:
+        val = tis->loc[locty].iface_id;
+        break;
     case TPM_TIS_REG_DID_VID:
         val = (TPM_TIS_TPM_DID << 16) | TPM_TIS_TPM_VID;
         break;
@@ -736,6 +788,25 @@ static void tpm_tis_mmio_write_intern(void *opaque, hwaddr addr,
             break;
         }
 
+        if (s->be_tpm_version == TPM_VERSION_2_0) {
+            /* some flags that are only supported for TPM 2 */
+            if (val & TPM_TIS_STS_COMMAND_CANCEL) {
+                if (tis->loc[locty].state == TPM_TIS_STATE_EXECUTION) {
+                    /*
+                     * request the backend to cancel. Some backends may not
+                     * support it
+                     */
+                    tpm_backend_cancel_cmd(s->be_driver);
+                }
+            }
+
+            if (val & TPM_TIS_STS_RESET_ESTABLISHMENT_BIT) {
+                if (locty == 3 || locty == 4) {
+                    tpm_backend_reset_tpm_established_flag(s->be_driver, locty);
+                }
+            }
+        }
+
         val &= (TPM_TIS_STS_COMMAND_READY | TPM_TIS_STS_TPM_GO |
                 TPM_TIS_STS_RESPONSE_RETRY);
 
@@ -860,6 +931,13 @@ static void tpm_tis_mmio_write_intern(void *opaque, hwaddr addr,
             }
         }
         break;
+    case TPM_TIS_REG_INTERFACE_ID:
+        if (val & TPM_TIS_IFACE_ID_INT_SEL_LOCK) {
+            for (l = 0; l < TPM_TIS_NUM_LOCALITIES; l++) {
+                tis->loc[l].iface_id |= TPM_TIS_IFACE_ID_INT_SEL_LOCK;
+            }
+        }
+        break;
     }
 }
 
@@ -884,6 +962,16 @@ static int tpm_tis_do_startup_tpm(TPMState *s)
     return tpm_backend_startup_tpm(s->be_driver);
 }
 
+/*
+ * Get the TPMVersion of the backend device being used
+ */
+TPMVersion tpm_tis_get_tpm_version(Object *obj)
+{
+    TPMState *s = TPM(obj);
+
+    return tpm_backend_get_tpm_version(s->be_driver);
+}
+
 /*
  * This function is called when the machine starts, resets or due to
  * S3 resume.
@@ -894,6 +982,8 @@ static void tpm_tis_reset(DeviceState *dev)
     TPMTISEmuState *tis = &s->s.tis;
     int c;
 
+    s->be_tpm_version = tpm_backend_get_tpm_version(s->be_driver);
+
     tpm_backend_reset(s->be_driver);
 
     tis->active_locty = TPM_TIS_NO_LOCALITY;
@@ -902,7 +992,18 @@ static void tpm_tis_reset(DeviceState *dev)
 
     for (c = 0; c < TPM_TIS_NUM_LOCALITIES; c++) {
         tis->loc[c].access = TPM_TIS_ACCESS_TPM_REG_VALID_STS;
-        tis->loc[c].sts = 0;
+        switch (s->be_tpm_version) {
+        case TPM_VERSION_UNSPEC:
+            break;
+        case TPM_VERSION_1_2:
+            tis->loc[c].sts = TPM_TIS_STS_TPM_FAMILY1_2;
+            tis->loc[c].iface_id = TPM_TIS_IFACE_ID_SUPPORTED_FLAGS1_3;
+            break;
+        case TPM_VERSION_2_0:
+            tis->loc[c].sts = TPM_TIS_STS_TPM_FAMILY2_0;
+            tis->loc[c].iface_id = TPM_TIS_IFACE_ID_SUPPORTED_FLAGS2_0;
+            break;
+        }
         tis->loc[c].inte = TPM_TIS_INT_POLARITY_LOW_LEVEL;
         tis->loc[c].ints = 0;
         tis->loc[c].state = TPM_TIS_STATE_IDLE;

hw/tpm/tpm_tis.h

@@ -42,6 +42,7 @@ typedef struct TPMLocality {
     TPMTISState state;
     uint8_t access;
     uint32_t sts;
+    uint32_t iface_id;
     uint32_t inte;
     uint32_t ints;
 

hw/tpm/tpm_util.c

@@ -0,0 +1,126 @@
+/*
+ * TPM utility functions
+ *
+ *  Copyright (c) 2010 - 2015 IBM Corporation
+ *  Authors:
+ *    Stefan Berger <stefanb@us.ibm.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>
+ */
+
+#include "tpm_util.h"
+#include "tpm_int.h"
+
+/*
+ * A basic test of a TPM device. We expect a well formatted response header
+ * (error response is fine) within one second.
+ */
+static int tpm_util_test(int fd,
+                         unsigned char *request,
+                         size_t requestlen,
+                         uint16_t *return_tag)
+{
+    struct tpm_resp_hdr *resp;
+    fd_set readfds;
+    int n;
+    struct timeval tv = {
+        .tv_sec = 1,
+        .tv_usec = 0,
+    };
+    unsigned char buf[1024];
+
+    n = write(fd, request, requestlen);
+    if (n < 0) {
+        return errno;
+    }
+    if (n != requestlen) {
+        return EFAULT;
+    }
+
+    FD_ZERO(&readfds);
+    FD_SET(fd, &readfds);
+
+    /* wait for a second */
+    n = select(fd + 1, &readfds, NULL, NULL, &tv);
+    if (n != 1) {
+        return errno;
+    }
+
+    n = read(fd, &buf, sizeof(buf));
+    if (n < sizeof(struct tpm_resp_hdr)) {
+        return EFAULT;
+    }
+
+    resp = (struct tpm_resp_hdr *)buf;
+    /* check the header */
+    if (be32_to_cpu(resp->len) != n) {
+        return EBADMSG;
+    }
+
+    *return_tag = be16_to_cpu(resp->tag);
+
+    return 0;
+}
+
+/*
+ * Probe for the TPM device in the back
+ * Returns 0 on success with the version of the probed TPM set, 1 on failure.
+ */
+int tpm_util_test_tpmdev(int tpm_fd, TPMVersion *tpm_version)
+{
+    /*
+     * Sending a TPM1.2 command to a TPM2 should return a TPM1.2
+     * header (tag = 0xc4) and error code (TPM_BADTAG = 0x1e)
+     *
+     * Sending a TPM2 command to a TPM 2 will give a TPM 2 tag in the
+     * header.
+     * Sending a TPM2 command to a TPM 1.2 will give a TPM 1.2 tag
+     * in the header and an error code.
+     */
+    const struct tpm_req_hdr test_req = {
+        .tag = cpu_to_be16(TPM_TAG_RQU_COMMAND),
+        .len = cpu_to_be32(sizeof(test_req)),
+        .ordinal = cpu_to_be32(TPM_ORD_GetTicks),
+    };
+
+    const struct tpm_req_hdr test_req_tpm2 = {
+        .tag = cpu_to_be16(TPM2_ST_NO_SESSIONS),
+        .len = cpu_to_be32(sizeof(test_req_tpm2)),
+        .ordinal = cpu_to_be32(TPM2_CC_ReadClock),
+    };
+    uint16_t return_tag;
+    int ret;
+
+    /* Send TPM 2 command */
+    ret = tpm_util_test(tpm_fd, (unsigned char *)&test_req_tpm2,
+                        sizeof(test_req_tpm2), &return_tag);
+    /* TPM 2 would respond with a tag of TPM2_ST_NO_SESSIONS */
+    if (!ret && return_tag == TPM2_ST_NO_SESSIONS) {
+        *tpm_version = TPM_VERSION_2_0;
+        return 0;
+    }
+
+    /* Send TPM 1.2 command */
+    ret = tpm_util_test(tpm_fd, (unsigned char *)&test_req,
+                        sizeof(test_req), &return_tag);
+    if (!ret && return_tag == TPM_TAG_RSP_COMMAND) {
+        *tpm_version = TPM_VERSION_1_2;
+        /* this is a TPM 1.2 */
+        return 0;
+    }
+
+    *tpm_version = TPM_VERSION_UNSPEC;
+
+    return 1;
+}

hw/tpm/tpm_util.h

@@ -0,0 +1,28 @@
+/*
+ * TPM utility functions
+ *
+ *  Copyright (c) 2010 - 2015 IBM Corporation
+ *  Authors:
+ *    Stefan Berger <stefanb@us.ibm.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>
+ */
+#ifndef TPM_TPM_UTILS_H
+#define TPM_TPM_UTILS_H
+
+#include "sysemu/tpm_backend.h"
+
+int tpm_util_test_tpmdev(int tpm_fd, TPMVersion *tpm_version);
+
+#endif /* TPM_TPM_UTILS_H */

hw/virtio/vhost-user.c

@@ -210,7 +210,12 @@ static int vhost_user_call(struct vhost_dev *dev, unsigned long int request,
         break;
 
     case VHOST_SET_OWNER:
+        break;
+
     case VHOST_RESET_OWNER:
+        memcpy(&msg.state, arg, sizeof(struct vhost_vring_state));
+        msg.state.index += dev->vq_index;
+        msg.size = sizeof(m.state);
         break;
 
     case VHOST_SET_MEM_TABLE:
@@ -253,17 +258,20 @@ static int vhost_user_call(struct vhost_dev *dev, unsigned long int request,
     case VHOST_SET_VRING_NUM:
     case VHOST_SET_VRING_BASE:
         memcpy(&msg.state, arg, sizeof(struct vhost_vring_state));
+        msg.state.index += dev->vq_index;
         msg.size = sizeof(m.state);
         break;
 
     case VHOST_GET_VRING_BASE:
         memcpy(&msg.state, arg, sizeof(struct vhost_vring_state));
+        msg.state.index += dev->vq_index;
         msg.size = sizeof(m.state);
         need_reply = 1;
         break;
 
     case VHOST_SET_VRING_ADDR:
         memcpy(&msg.addr, arg, sizeof(struct vhost_vring_addr));
+        msg.addr.index += dev->vq_index;
         msg.size = sizeof(m.addr);
         break;
 
@@ -271,7 +279,7 @@ static int vhost_user_call(struct vhost_dev *dev, unsigned long int request,
     case VHOST_SET_VRING_CALL:
     case VHOST_SET_VRING_ERR:
         file = arg;
-        msg.u64 = file->index & VHOST_USER_VRING_IDX_MASK;
+        msg.u64 = (file->index + dev->vq_index) & VHOST_USER_VRING_IDX_MASK;
         msg.size = sizeof(m.u64);
         if (ioeventfd_enabled() && file->fd > 0) {
             fds[fd_num++] = file->fd;
@@ -313,6 +321,7 @@ static int vhost_user_call(struct vhost_dev *dev, unsigned long int request,
                 error_report("Received bad msg size.");
                 return -1;
             }
+            msg.state.index -= dev->vq_index;
             memcpy(arg, &msg.state, sizeof(struct vhost_vring_state));
             break;
         default:

hw/virtio/virtio-balloon.c

@@ -310,7 +310,7 @@ static void virtio_balloon_set_config(VirtIODevice *vdev,
     trace_virtio_balloon_set_config(dev->actual, oldactual);
 }
 
-static uint32_t virtio_balloon_get_features(VirtIODevice *vdev, uint32_t f)
+static uint64_t virtio_balloon_get_features(VirtIODevice *vdev, uint64_t f)
 {
     f |= (1 << VIRTIO_BALLOON_F_STATS_VQ);
     return f;
@@ -396,14 +396,6 @@ static void virtio_balloon_device_realize(DeviceState *dev, Error **errp)
 
     register_savevm(dev, "virtio-balloon", -1, 1,
                     virtio_balloon_save, virtio_balloon_load, s);
-
-    object_property_add(OBJECT(dev), "guest-stats", "guest statistics",
-                        balloon_stats_get_all, NULL, NULL, s, NULL);
-
-    object_property_add(OBJECT(dev), "guest-stats-polling-interval", "int",
-                        balloon_stats_get_poll_interval,
-                        balloon_stats_set_poll_interval,
-                        NULL, s, NULL);
 }
 
 static void virtio_balloon_device_unrealize(DeviceState *dev, Error **errp)
@@ -417,6 +409,19 @@ static void virtio_balloon_device_unrealize(DeviceState *dev, Error **errp)
     virtio_cleanup(vdev);
 }
 
+static void virtio_balloon_instance_init(Object *obj)
+{
+    VirtIOBalloon *s = VIRTIO_BALLOON(obj);
+
+    object_property_add(obj, "guest-stats", "guest statistics",
+                        balloon_stats_get_all, NULL, NULL, s, NULL);
+
+    object_property_add(obj, "guest-stats-polling-interval", "int",
+                        balloon_stats_get_poll_interval,
+                        balloon_stats_set_poll_interval,
+                        NULL, s, NULL);
+}
+
 static Property virtio_balloon_properties[] = {
     DEFINE_PROP_END_OF_LIST(),
 };
@@ -441,6 +446,7 @@ static const TypeInfo virtio_balloon_info = {
     .name = TYPE_VIRTIO_BALLOON,
     .parent = TYPE_VIRTIO_DEVICE,
     .instance_size = sizeof(VirtIOBalloon),
+    .instance_init = virtio_balloon_instance_init,
     .class_init = virtio_balloon_class_init,
 };
 

hw/virtio/virtio-bus.c

@@ -38,19 +38,23 @@ do { printf("virtio_bus: " fmt , ## __VA_ARGS__); } while (0)
 #endif
 
 /* A VirtIODevice is being plugged */
-int virtio_bus_device_plugged(VirtIODevice *vdev)
+void virtio_bus_device_plugged(VirtIODevice *vdev, Error **errp)
 {
     DeviceState *qdev = DEVICE(vdev);
     BusState *qbus = BUS(qdev_get_parent_bus(qdev));
     VirtioBusState *bus = VIRTIO_BUS(qbus);
     VirtioBusClass *klass = VIRTIO_BUS_GET_CLASS(bus);
+    VirtioDeviceClass *vdc = VIRTIO_DEVICE_GET_CLASS(vdev);
+
     DPRINTF("%s: plug device.\n", qbus->name);
 
     if (klass->device_plugged != NULL) {
-        klass->device_plugged(qbus->parent);
+        klass->device_plugged(qbus->parent, errp);
     }
 
-    return 0;
+    /* Get the features of the plugged device. */
+    assert(vdc->get_features != NULL);
+    vdev->host_features = vdc->get_features(vdev, vdev->host_features);
 }
 
 /* Reset the virtio_bus */
@@ -96,19 +100,6 @@ size_t virtio_bus_get_vdev_config_len(VirtioBusState *bus)
     return vdev->config_len;
 }
 
-/* Get the features of the plugged device. */
-uint32_t virtio_bus_get_vdev_features(VirtioBusState *bus,
-                                    uint32_t requested_features)
-{
-    VirtIODevice *vdev = virtio_bus_get_device(bus);
-    VirtioDeviceClass *k;
-
-    assert(vdev != NULL);
-    k = VIRTIO_DEVICE_GET_CLASS(vdev);
-    assert(k->get_features != NULL);
-    return k->get_features(vdev, requested_features);
-}
-
 /* Get bad features of the plugged device. */
 uint32_t virtio_bus_get_vdev_bad_features(VirtioBusState *bus)
 {

hw/virtio/virtio-mmio.c

@@ -22,7 +22,9 @@
 #include "hw/sysbus.h"
 #include "hw/virtio/virtio.h"
 #include "qemu/host-utils.h"
+#include "sysemu/kvm.h"
 #include "hw/virtio/virtio-bus.h"
+#include "qemu/error-report.h"
 
 /* #define DEBUG_VIRTIO_MMIO */
 
@@ -80,15 +82,102 @@ typedef struct {
     SysBusDevice parent_obj;
     MemoryRegion iomem;
     qemu_irq irq;
-    uint32_t host_features;
     /* Guest accessible state needing migration and reset */
     uint32_t host_features_sel;
     uint32_t guest_features_sel;
     uint32_t guest_page_shift;
     /* virtio-bus */
     VirtioBusState bus;
+    bool ioeventfd_disabled;
+    bool ioeventfd_started;
 } VirtIOMMIOProxy;
 
+static int virtio_mmio_set_host_notifier_internal(VirtIOMMIOProxy *proxy,
+                                                  int n, bool assign,
+                                                  bool set_handler)
+{
+    VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus);
+    VirtQueue *vq = virtio_get_queue(vdev, n);
+    EventNotifier *notifier = virtio_queue_get_host_notifier(vq);
+    int r = 0;
+
+    if (assign) {
+        r = event_notifier_init(notifier, 1);
+        if (r < 0) {
+            error_report("%s: unable to init event notifier: %d",
+                         __func__, r);
+            return r;
+        }
+        virtio_queue_set_host_notifier_fd_handler(vq, true, set_handler);
+        memory_region_add_eventfd(&proxy->iomem, VIRTIO_MMIO_QUEUENOTIFY, 4,
+                                  true, n, notifier);
+    } else {
+        memory_region_del_eventfd(&proxy->iomem, VIRTIO_MMIO_QUEUENOTIFY, 4,
+                                  true, n, notifier);
+        virtio_queue_set_host_notifier_fd_handler(vq, false, false);
+        event_notifier_cleanup(notifier);
+    }
+    return r;
+}
+
+static void virtio_mmio_start_ioeventfd(VirtIOMMIOProxy *proxy)
+{
+    VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus);
+    int n, r;
+
+    if (!kvm_eventfds_enabled() ||
+        proxy->ioeventfd_disabled ||
+        proxy->ioeventfd_started) {
+        return;
+    }
+
+    for (n = 0; n < VIRTIO_QUEUE_MAX; n++) {
+        if (!virtio_queue_get_num(vdev, n)) {
+            continue;
+        }
+
+        r = virtio_mmio_set_host_notifier_internal(proxy, n, true, true);
+        if (r < 0) {
+            goto assign_error;
+        }
+    }
+    proxy->ioeventfd_started = true;
+    return;
+
+assign_error:
+    while (--n >= 0) {
+        if (!virtio_queue_get_num(vdev, n)) {
+            continue;
+        }
+
+        r = virtio_mmio_set_host_notifier_internal(proxy, n, false, false);
+        assert(r >= 0);
+    }
+    proxy->ioeventfd_started = false;
+    error_report("%s: failed. Fallback to a userspace (slower).", __func__);
+}
+
+static void virtio_mmio_stop_ioeventfd(VirtIOMMIOProxy *proxy)
+{
+    int r;
+    int n;
+    VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus);
+
+    if (!proxy->ioeventfd_started) {
+        return;
+    }
+
+    for (n = 0; n < VIRTIO_QUEUE_MAX; n++) {
+        if (!virtio_queue_get_num(vdev, n)) {
+            continue;
+        }
+
+        r = virtio_mmio_set_host_notifier_internal(proxy, n, false, false);
+        assert(r >= 0);
+    }
+    proxy->ioeventfd_started = false;
+}
+
 static uint64_t virtio_mmio_read(void *opaque, hwaddr offset, unsigned size)
 {
     VirtIOMMIOProxy *proxy = (VirtIOMMIOProxy *)opaque;
@@ -147,7 +236,7 @@ static uint64_t virtio_mmio_read(void *opaque, hwaddr offset, unsigned size)
         if (proxy->host_features_sel) {
             return 0;
         }
-        return proxy->host_features;
+        return vdev->host_features;
     case VIRTIO_MMIO_QUEUENUMMAX:
         if (!virtio_queue_get_num(vdev, vdev->queue_sel)) {
             return 0;
@@ -237,7 +326,7 @@ static void virtio_mmio_write(void *opaque, hwaddr offset, uint64_t value,
                 proxy->guest_page_shift);
         break;
     case VIRTIO_MMIO_QUEUESEL:
-        if (value < VIRTIO_PCI_QUEUE_MAX) {
+        if (value < VIRTIO_QUEUE_MAX) {
             vdev->queue_sel = value;
         }
         break;
@@ -257,7 +346,7 @@ static void virtio_mmio_write(void *opaque, hwaddr offset, uint64_t value,
         }
         break;
     case VIRTIO_MMIO_QUEUENOTIFY:
-        if (value < VIRTIO_PCI_QUEUE_MAX) {
+        if (value < VIRTIO_QUEUE_MAX) {
             virtio_queue_notify(vdev, value);
         }
         break;
@@ -266,7 +355,16 @@ static void virtio_mmio_write(void *opaque, hwaddr offset, uint64_t value,
         virtio_update_irq(vdev);
         break;
     case VIRTIO_MMIO_STATUS:
+        if (!(value & VIRTIO_CONFIG_S_DRIVER_OK)) {
+            virtio_mmio_stop_ioeventfd(proxy);
+        }
+
         virtio_set_status(vdev, value & 0xff);
+
+        if (value & VIRTIO_CONFIG_S_DRIVER_OK) {
+            virtio_mmio_start_ioeventfd(proxy);
+        }
+
         if (vdev->status == 0) {
             virtio_reset(vdev);
         }
@@ -306,13 +404,6 @@ static void virtio_mmio_update_irq(DeviceState *opaque, uint16_t vector)
     qemu_set_irq(proxy->irq, level);
 }
 
-static unsigned int virtio_mmio_get_features(DeviceState *opaque)
-{
-    VirtIOMMIOProxy *proxy = VIRTIO_MMIO(opaque);
-
-    return proxy->host_features;
-}
-
 static int virtio_mmio_load_config(DeviceState *opaque, QEMUFile *f)
 {
     VirtIOMMIOProxy *proxy = VIRTIO_MMIO(opaque);
@@ -336,23 +427,93 @@ static void virtio_mmio_reset(DeviceState *d)
 {
     VirtIOMMIOProxy *proxy = VIRTIO_MMIO(d);
 
+    virtio_mmio_stop_ioeventfd(proxy);
     virtio_bus_reset(&proxy->bus);
     proxy->host_features_sel = 0;
     proxy->guest_features_sel = 0;
     proxy->guest_page_shift = 0;
 }
 
-/* virtio-mmio device */
+static int virtio_mmio_set_guest_notifier(DeviceState *d, int n, bool assign,
+                                          bool with_irqfd)
+{
+    VirtIOMMIOProxy *proxy = VIRTIO_MMIO(d);
+    VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus);
+    VirtioDeviceClass *vdc = VIRTIO_DEVICE_GET_CLASS(vdev);
+    VirtQueue *vq = virtio_get_queue(vdev, n);
+    EventNotifier *notifier = virtio_queue_get_guest_notifier(vq);
 
-/* This is called by virtio-bus just after the device is plugged. */
+    if (assign) {
-static void virtio_mmio_device_plugged(DeviceState *opaque)
+        int r = event_notifier_init(notifier, 0);
+        if (r < 0) {
+            return r;
+        }
+        virtio_queue_set_guest_notifier_fd_handler(vq, true, with_irqfd);
+    } else {
+        virtio_queue_set_guest_notifier_fd_handler(vq, false, with_irqfd);
+        event_notifier_cleanup(notifier);
+    }
+
+    if (vdc->guest_notifier_mask) {
+        vdc->guest_notifier_mask(vdev, n, !assign);
+    }
+
+    return 0;
+}
+
+static int virtio_mmio_set_guest_notifiers(DeviceState *d, int nvqs,
+                                           bool assign)
+{
+    VirtIOMMIOProxy *proxy = VIRTIO_MMIO(d);
+    VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus);
+    /* TODO: need to check if kvm-arm supports irqfd */
+    bool with_irqfd = false;
+    int r, n;
+
+    nvqs = MIN(nvqs, VIRTIO_QUEUE_MAX);
+
+    for (n = 0; n < nvqs; n++) {
+        if (!virtio_queue_get_num(vdev, n)) {
+            break;
+        }
+
+        r = virtio_mmio_set_guest_notifier(d, n, assign, with_irqfd);
+        if (r < 0) {
+            goto assign_error;
+        }
+    }
+
+    return 0;
+
+assign_error:
+    /* We get here on assignment failure. Recover by undoing for VQs 0 .. n. */
+    assert(assign);
+    while (--n >= 0) {
+        virtio_mmio_set_guest_notifier(d, n, !assign, false);
+    }
+    return r;
+}
+
+static int virtio_mmio_set_host_notifier(DeviceState *opaque, int n,
+                                         bool assign)
 {
     VirtIOMMIOProxy *proxy = VIRTIO_MMIO(opaque);
 
-    virtio_add_feature(&proxy->host_features, VIRTIO_F_NOTIFY_ON_EMPTY);
+    /* Stop using ioeventfd for virtqueue kick if the device starts using host
-    proxy->host_features = virtio_bus_get_vdev_features(&proxy->bus,
+     * notifiers.  This makes it easy to avoid stepping on each others' toes.
-                                                        proxy->host_features);
+     */
+    proxy->ioeventfd_disabled = assign;
+    if (assign) {
+        virtio_mmio_stop_ioeventfd(proxy);
     }
+    /* We don't need to start here: it's not needed because backend
+     * currently only stops on status change away from ok,
+     * reset, vmstop and such. If we do add code to start here,
+     * need to check vmstate, device state etc. */
+    return virtio_mmio_set_host_notifier_internal(proxy, n, assign, false);
+}
+
+/* virtio-mmio device */
 
 static void virtio_mmio_realizefn(DeviceState *d, Error **errp)
 {
@@ -367,16 +528,10 @@ static void virtio_mmio_realizefn(DeviceState *d, Error **errp)
     sysbus_init_mmio(sbd, &proxy->iomem);
 }
 
-static Property virtio_mmio_properties[] = {
-    DEFINE_VIRTIO_COMMON_FEATURES(VirtIOMMIOProxy, host_features),
-    DEFINE_PROP_END_OF_LIST(),
-};
-
 static void virtio_mmio_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
 
-    dc->props = virtio_mmio_properties;
     dc->realize = virtio_mmio_realizefn;
     dc->reset = virtio_mmio_reset;
     set_bit(DEVICE_CATEGORY_MISC, dc->categories);
@@ -399,8 +554,8 @@ static void virtio_mmio_bus_class_init(ObjectClass *klass, void *data)
     k->notify = virtio_mmio_update_irq;
     k->save_config = virtio_mmio_save_config;
     k->load_config = virtio_mmio_load_config;
-    k->get_features = virtio_mmio_get_features;
+    k->set_host_notifier = virtio_mmio_set_host_notifier;
-    k->device_plugged = virtio_mmio_device_plugged;
+    k->set_guest_notifiers = virtio_mmio_set_guest_notifiers;
     k->has_variable_vring_alignment = true;
     bus_class->max_dev = 1;
 }

hw/virtio/virtio-pci.c

@@ -171,7 +171,7 @@ static void virtio_pci_start_ioeventfd(VirtIOPCIProxy *proxy)
         return;
     }
 
-    for (n = 0; n < VIRTIO_PCI_QUEUE_MAX; n++) {
+    for (n = 0; n < VIRTIO_QUEUE_MAX; n++) {
         if (!virtio_queue_get_num(vdev, n)) {
             continue;
         }
@@ -207,7 +207,7 @@ static void virtio_pci_stop_ioeventfd(VirtIOPCIProxy *proxy)
         return;
     }
 
-    for (n = 0; n < VIRTIO_PCI_QUEUE_MAX; n++) {
+    for (n = 0; n < VIRTIO_QUEUE_MAX; n++) {
         if (!virtio_queue_get_num(vdev, n)) {
             continue;
         }
@@ -243,11 +243,11 @@ static void virtio_ioport_write(void *opaque, uint32_t addr, uint32_t val)
             virtio_queue_set_addr(vdev, vdev->queue_sel, pa);
         break;
     case VIRTIO_PCI_QUEUE_SEL:
-        if (val < VIRTIO_PCI_QUEUE_MAX)
+        if (val < VIRTIO_QUEUE_MAX)
             vdev->queue_sel = val;
         break;
     case VIRTIO_PCI_QUEUE_NOTIFY:
-        if (val < VIRTIO_PCI_QUEUE_MAX) {
+        if (val < VIRTIO_QUEUE_MAX) {
             virtio_queue_notify(vdev, val);
         }
         break;
@@ -306,7 +306,7 @@ static uint32_t virtio_ioport_read(VirtIOPCIProxy *proxy, uint32_t addr)
 
     switch (addr) {
     case VIRTIO_PCI_HOST_FEATURES:
-        ret = proxy->host_features;
+        ret = vdev->host_features;
         break;
     case VIRTIO_PCI_GUEST_FEATURES:
         ret = vdev->guest_features;
@@ -434,12 +434,6 @@ static void virtio_write_config(PCIDevice *pci_dev, uint32_t address,
     }
 }
 
-static unsigned virtio_pci_get_features(DeviceState *d)
-{
-    VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d);
-    return proxy->host_features;
-}
-
 static int kvm_virtio_pci_vq_vector_use(VirtIOPCIProxy *proxy,
                                         unsigned int queue_no,
                                         unsigned int vector,
@@ -750,7 +744,7 @@ static int virtio_pci_set_guest_notifiers(DeviceState *d, int nvqs, bool assign)
     bool with_irqfd = msix_enabled(&proxy->pci_dev) &&
         kvm_msi_via_irqfd_enabled();
 
-    nvqs = MIN(nvqs, VIRTIO_PCI_QUEUE_MAX);
+    nvqs = MIN(nvqs, VIRTIO_QUEUE_MAX);
 
     /* When deassigning, pass a consistent nvqs value
      * to avoid leaking notifiers.
@@ -918,12 +912,13 @@ static int virtio_pci_query_nvectors(DeviceState *d)
 }
 
 /* This is called by virtio-bus just after the device is plugged. */
-static void virtio_pci_device_plugged(DeviceState *d)
+static void virtio_pci_device_plugged(DeviceState *d, Error **errp)
 {
     VirtIOPCIProxy *proxy = VIRTIO_PCI(d);
     VirtioBusState *bus = &proxy->bus;
     uint8_t *config;
     uint32_t size;
+    VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus);
 
     config = proxy->pci_dev.config;
     if (proxy->class_code) {
@@ -958,10 +953,7 @@ static void virtio_pci_device_plugged(DeviceState *d)
         proxy->flags &= ~VIRTIO_PCI_FLAG_USE_IOEVENTFD;
     }
 
-    virtio_add_feature(&proxy->host_features, VIRTIO_F_NOTIFY_ON_EMPTY);
+    virtio_add_feature(&vdev->host_features, VIRTIO_F_BAD_FEATURE);
-    virtio_add_feature(&proxy->host_features, VIRTIO_F_BAD_FEATURE);
-    proxy->host_features = virtio_bus_get_vdev_features(bus,
-                                                      proxy->host_features);
 }
 
 static void virtio_pci_device_unplugged(DeviceState *d)
@@ -999,7 +991,6 @@ static void virtio_pci_reset(DeviceState *qdev)
 static Property virtio_pci_properties[] = {
     DEFINE_PROP_BIT("virtio-pci-bus-master-bug-migration", VirtIOPCIProxy, flags,
                     VIRTIO_PCI_FLAG_BUS_MASTER_BUG_MIGRATION_BIT, false),
-    DEFINE_VIRTIO_COMMON_FEATURES(VirtIOPCIProxy, host_features),
     DEFINE_PROP_END_OF_LIST(),
 };
 
@@ -1207,32 +1198,6 @@ static const TypeInfo vhost_scsi_pci_info = {
 
 /* virtio-balloon-pci */
 
-static void balloon_pci_stats_get_all(Object *obj, struct Visitor *v,
-                                      void *opaque, const char *name,
-                                      Error **errp)
-{
-    VirtIOBalloonPCI *dev = opaque;
-    object_property_get(OBJECT(&dev->vdev), v, "guest-stats", errp);
-}
-
-static void balloon_pci_stats_get_poll_interval(Object *obj, struct Visitor *v,
-                                                void *opaque, const char *name,
-                                                Error **errp)
-{
-    VirtIOBalloonPCI *dev = opaque;
-    object_property_get(OBJECT(&dev->vdev), v, "guest-stats-polling-interval",
-                        errp);
-}
-
-static void balloon_pci_stats_set_poll_interval(Object *obj, struct Visitor *v,
-                                                void *opaque, const char *name,
-                                                Error **errp)
-{
-    VirtIOBalloonPCI *dev = opaque;
-    object_property_set(OBJECT(&dev->vdev), v, "guest-stats-polling-interval",
-                        errp);
-}
-
 static Property virtio_balloon_pci_properties[] = {
     DEFINE_PROP_UINT32("class", VirtIOPCIProxy, class_code, 0),
     DEFINE_PROP_END_OF_LIST(),
@@ -1269,16 +1234,14 @@ static void virtio_balloon_pci_class_init(ObjectClass *klass, void *data)
 static void virtio_balloon_pci_instance_init(Object *obj)
 {
     VirtIOBalloonPCI *dev = VIRTIO_BALLOON_PCI(obj);
+
     virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
                                 TYPE_VIRTIO_BALLOON);
-    object_property_add(obj, "guest-stats", "guest statistics",
+    object_property_add_alias(obj, "guest-stats", OBJECT(&dev->vdev),
-                        balloon_pci_stats_get_all, NULL, NULL, dev,
+                                  "guest-stats", &error_abort);
-                        NULL);
+    object_property_add_alias(obj, "guest-stats-polling-interval",
-
+                              OBJECT(&dev->vdev),
-    object_property_add(obj, "guest-stats-polling-interval", "int",
+                              "guest-stats-polling-interval", &error_abort);
-                        balloon_pci_stats_get_poll_interval,
-                        balloon_pci_stats_set_poll_interval,
-                        NULL, dev, NULL);
 }
 
 static const TypeInfo virtio_balloon_pci_info = {
@@ -1497,7 +1460,6 @@ static void virtio_pci_bus_class_init(ObjectClass *klass, void *data)
     k->load_config = virtio_pci_load_config;
     k->save_queue = virtio_pci_save_queue;
     k->load_queue = virtio_pci_load_queue;
-    k->get_features = virtio_pci_get_features;
     k->query_guest_notifiers = virtio_pci_query_guest_notifiers;
     k->set_host_notifier = virtio_pci_set_host_notifier;
     k->set_guest_notifiers = virtio_pci_set_guest_notifiers;

hw/virtio/virtio-pci.h

@@ -91,7 +91,6 @@ struct VirtIOPCIProxy {
     uint32_t flags;
     uint32_t class_code;
     uint32_t nvectors;
-    uint32_t host_features;
     bool ioeventfd_disabled;
     bool ioeventfd_started;
     VirtIOIRQFD *vector_irqfd;

hw/virtio/virtio-rng.c

@@ -99,7 +99,7 @@ static void handle_input(VirtIODevice *vdev, VirtQueue *vq)
     virtio_rng_process(vrng);
 }
 
-static uint32_t get_features(VirtIODevice *vdev, uint32_t f)
+static uint64_t get_features(VirtIODevice *vdev, uint64_t f)
 {
     return f;
 }

hw/virtio/virtio.c

@@ -600,7 +600,7 @@ void virtio_reset(void *opaque)
     vdev->config_vector = VIRTIO_NO_VECTOR;
     virtio_notify_vector(vdev, vdev->config_vector);
 
-    for(i = 0; i < VIRTIO_PCI_QUEUE_MAX; i++) {
+    for(i = 0; i < VIRTIO_QUEUE_MAX; i++) {
         vdev->vq[i].vring.desc = 0;
         vdev->vq[i].vring.avail = 0;
         vdev->vq[i].vring.used = 0;
@@ -746,10 +746,23 @@ int virtio_queue_get_num(VirtIODevice *vdev, int n)
     return vdev->vq[n].vring.num;
 }
 
+int virtio_get_num_queues(VirtIODevice *vdev)
+{
+    int i;
+
+    for (i = 0; i < VIRTIO_QUEUE_MAX; i++) {
+        if (!virtio_queue_get_num(vdev, i)) {
+            break;
+        }
+    }
+
+    return i;
+}
+
 int virtio_queue_get_id(VirtQueue *vq)
 {
     VirtIODevice *vdev = vq->vdev;
-    assert(vq >= &vdev->vq[0] && vq < &vdev->vq[VIRTIO_PCI_QUEUE_MAX]);
+    assert(vq >= &vdev->vq[0] && vq < &vdev->vq[VIRTIO_QUEUE_MAX]);
     return vq - &vdev->vq[0];
 }
 
@@ -785,7 +798,7 @@ void virtio_queue_notify(VirtIODevice *vdev, int n)
 
 uint16_t virtio_queue_vector(VirtIODevice *vdev, int n)
 {
-    return n < VIRTIO_PCI_QUEUE_MAX ? vdev->vq[n].vector :
+    return n < VIRTIO_QUEUE_MAX ? vdev->vq[n].vector :
         VIRTIO_NO_VECTOR;
 }
 
@@ -793,7 +806,7 @@ void virtio_queue_set_vector(VirtIODevice *vdev, int n, uint16_t vector)
 {
     VirtQueue *vq = &vdev->vq[n];
 
-    if (n < VIRTIO_PCI_QUEUE_MAX) {
+    if (n < VIRTIO_QUEUE_MAX) {
         if (vdev->vector_queues &&
             vdev->vq[n].vector != VIRTIO_NO_VECTOR) {
             QLIST_REMOVE(vq, node);
@@ -811,12 +824,12 @@ VirtQueue *virtio_add_queue(VirtIODevice *vdev, int queue_size,
 {
     int i;
 
-    for (i = 0; i < VIRTIO_PCI_QUEUE_MAX; i++) {
+    for (i = 0; i < VIRTIO_QUEUE_MAX; i++) {
         if (vdev->vq[i].vring.num == 0)
             break;
     }
 
-    if (i == VIRTIO_PCI_QUEUE_MAX || queue_size > VIRTQUEUE_MAX_SIZE)
+    if (i == VIRTIO_QUEUE_MAX || queue_size > VIRTQUEUE_MAX_SIZE)
         abort();
 
     vdev->vq[i].vring.num = queue_size;
@@ -828,7 +841,7 @@ VirtQueue *virtio_add_queue(VirtIODevice *vdev, int queue_size,
 
 void virtio_del_queue(VirtIODevice *vdev, int n)
 {
-    if (n < 0 || n >= VIRTIO_PCI_QUEUE_MAX) {
+    if (n < 0 || n >= VIRTIO_QUEUE_MAX) {
         abort();
     }
 
@@ -893,6 +906,13 @@ static bool virtio_device_endian_needed(void *opaque)
     return vdev->device_endian != virtio_default_endian();
 }
 
+static bool virtio_64bit_features_needed(void *opaque)
+{
+    VirtIODevice *vdev = opaque;
+
+    return (vdev->host_features >> 32) != 0;
+}
+
 static const VMStateDescription vmstate_virtio_device_endian = {
     .name = "virtio/device_endian",
     .version_id = 1,
@@ -903,6 +923,16 @@ static const VMStateDescription vmstate_virtio_device_endian = {
     }
 };
 
+static const VMStateDescription vmstate_virtio_64bit_features = {
+    .name = "virtio/64bit_features",
+    .version_id = 1,
+    .minimum_version_id = 1,
+    .fields = (VMStateField[]) {
+        VMSTATE_UINT64(guest_features, VirtIODevice),
+        VMSTATE_END_OF_LIST()
+    }
+};
+
 static const VMStateDescription vmstate_virtio = {
     .name = "virtio",
     .version_id = 1,
@@ -916,6 +946,10 @@ static const VMStateDescription vmstate_virtio = {
             .vmsd = &vmstate_virtio_device_endian,
             .needed = &virtio_device_endian_needed
         },
+        {
+            .vmsd = &vmstate_virtio_64bit_features,
+            .needed = &virtio_64bit_features_needed
+        },
         { 0 }
     }
 };
@@ -925,6 +959,7 @@ void virtio_save(VirtIODevice *vdev, QEMUFile *f)
     BusState *qbus = qdev_get_parent_bus(DEVICE(vdev));
     VirtioBusClass *k = VIRTIO_BUS_GET_CLASS(qbus);
     VirtioDeviceClass *vdc = VIRTIO_DEVICE_GET_CLASS(vdev);
+    uint32_t guest_features_lo = (vdev->guest_features & 0xffffffff);
     int i;
 
     if (k->save_config) {
@@ -934,18 +969,18 @@ void virtio_save(VirtIODevice *vdev, QEMUFile *f)
     qemu_put_8s(f, &vdev->status);
     qemu_put_8s(f, &vdev->isr);
     qemu_put_be16s(f, &vdev->queue_sel);
-    qemu_put_be32s(f, &vdev->guest_features);
+    qemu_put_be32s(f, &guest_features_lo);
     qemu_put_be32(f, vdev->config_len);
     qemu_put_buffer(f, vdev->config, vdev->config_len);
 
-    for (i = 0; i < VIRTIO_PCI_QUEUE_MAX; i++) {
+    for (i = 0; i < VIRTIO_QUEUE_MAX; i++) {
         if (vdev->vq[i].vring.num == 0)
             break;
     }
 
     qemu_put_be32(f, i);
 
-    for (i = 0; i < VIRTIO_PCI_QUEUE_MAX; i++) {
+    for (i = 0; i < VIRTIO_QUEUE_MAX; i++) {
         if (vdev->vq[i].vring.num == 0)
             break;
 
@@ -970,13 +1005,10 @@ void virtio_save(VirtIODevice *vdev, QEMUFile *f)
 
 int virtio_set_features(VirtIODevice *vdev, uint32_t val)
 {
-    BusState *qbus = qdev_get_parent_bus(DEVICE(vdev));
-    VirtioBusClass *vbusk = VIRTIO_BUS_GET_CLASS(qbus);
     VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev);
-    uint32_t supported_features = vbusk->get_features(qbus->parent);
+    bool bad = (val & ~(vdev->host_features)) != 0;
-    bool bad = (val & ~supported_features) != 0;
 
-    val &= supported_features;
+    val &= vdev->host_features;
     if (k->set_features) {
         k->set_features(vdev, val);
     }
@@ -990,7 +1022,6 @@ int virtio_load(VirtIODevice *vdev, QEMUFile *f, int version_id)
     int32_t config_len;
     uint32_t num;
     uint32_t features;
-    uint32_t supported_features;
     BusState *qbus = qdev_get_parent_bus(DEVICE(vdev));
     VirtioBusClass *k = VIRTIO_BUS_GET_CLASS(qbus);
     VirtioDeviceClass *vdc = VIRTIO_DEVICE_GET_CLASS(vdev);
@@ -1010,17 +1041,11 @@ int virtio_load(VirtIODevice *vdev, QEMUFile *f, int version_id)
     qemu_get_8s(f, &vdev->status);
     qemu_get_8s(f, &vdev->isr);
     qemu_get_be16s(f, &vdev->queue_sel);
-    if (vdev->queue_sel >= VIRTIO_PCI_QUEUE_MAX) {
+    if (vdev->queue_sel >= VIRTIO_QUEUE_MAX) {
         return -1;
     }
     qemu_get_be32s(f, &features);
 
-    if (virtio_set_features(vdev, features) < 0) {
-        supported_features = k->get_features(qbus->parent);
-        error_report("Features 0x%x unsupported. Allowed features: 0x%x",
-                     features, supported_features);
-        return -1;
-    }
     config_len = qemu_get_be32(f);
 
     /*
@@ -1037,7 +1062,7 @@ int virtio_load(VirtIODevice *vdev, QEMUFile *f, int version_id)
 
     num = qemu_get_be32(f);
 
-    if (num > VIRTIO_PCI_QUEUE_MAX) {
+    if (num > VIRTIO_QUEUE_MAX) {
         error_report("Invalid number of PCI queues: 0x%x", num);
         return -1;
     }
@@ -1086,6 +1111,28 @@ int virtio_load(VirtIODevice *vdev, QEMUFile *f, int version_id)
         vdev->device_endian = virtio_default_endian();
     }
 
+    if (virtio_64bit_features_needed(vdev)) {
+        /*
+         * Subsection load filled vdev->guest_features.  Run them
+         * through virtio_set_features to sanity-check them against
+         * host_features.
+         */
+        uint64_t features64 = vdev->guest_features;
+        if (virtio_set_features(vdev, features64) < 0) {
+            error_report("Features 0x%" PRIx64 " unsupported. "
+                         "Allowed features: 0x%" PRIx64,
+                         features64, vdev->host_features);
+            return -1;
+        }
+    } else {
+        if (virtio_set_features(vdev, features) < 0) {
+            error_report("Features 0x%x unsupported. "
+                         "Allowed features: 0x%" PRIx64,
+                         features, vdev->host_features);
+            return -1;
+        }
+    }
+
     for (i = 0; i < num; i++) {
         if (vdev->vq[i].pa) {
             uint16_t nheads;
@@ -1163,9 +1210,9 @@ void virtio_init(VirtIODevice *vdev, const char *name,
     vdev->isr = 0;
     vdev->queue_sel = 0;
     vdev->config_vector = VIRTIO_NO_VECTOR;
-    vdev->vq = g_malloc0(sizeof(VirtQueue) * VIRTIO_PCI_QUEUE_MAX);
+    vdev->vq = g_malloc0(sizeof(VirtQueue) * VIRTIO_QUEUE_MAX);
     vdev->vm_running = runstate_is_running();
-    for (i = 0; i < VIRTIO_PCI_QUEUE_MAX; i++) {
+    for (i = 0; i < VIRTIO_QUEUE_MAX; i++) {
         vdev->vq[i].vector = VIRTIO_NO_VECTOR;
         vdev->vq[i].vdev = vdev;
         vdev->vq[i].queue_index = i;
@@ -1328,7 +1375,12 @@ static void virtio_device_realize(DeviceState *dev, Error **errp)
             return;
         }
     }
-    virtio_bus_device_plugged(vdev);
+
+    virtio_bus_device_plugged(vdev, &err);
+    if (err != NULL) {
+        error_propagate(errp, err);
+        return;
+    }
 }
 
 static void virtio_device_unrealize(DeviceState *dev, Error **errp)
@@ -1351,6 +1403,11 @@ static void virtio_device_unrealize(DeviceState *dev, Error **errp)
     vdev->bus_name = NULL;
 }
 
+static Property virtio_properties[] = {
+    DEFINE_VIRTIO_COMMON_FEATURES(VirtIODevice, host_features),
+    DEFINE_PROP_END_OF_LIST(),
+};
+
 static void virtio_device_class_init(ObjectClass *klass, void *data)
 {
     /* Set the default value here. */
@@ -1359,6 +1416,7 @@ static void virtio_device_class_init(ObjectClass *klass, void *data)
     dc->realize = virtio_device_realize;
     dc->unrealize = virtio_device_unrealize;
     dc->bus_type = TYPE_VIRTIO_BUS;
+    dc->props = virtio_properties;
 }
 
 static const TypeInfo virtio_device_info = {

include/exec/memattrs.h

@@ -33,6 +33,8 @@ typedef struct MemTxAttrs {
     unsigned int secure:1;
     /* Memory access is usermode (unprivileged) */
     unsigned int user:1;
+    /* Stream ID (for MSI for example) */
+    unsigned int stream_id:16;
 } MemTxAttrs;
 
 /* Bus masters which don't specify any attributes will get this,

include/hw/acpi/acpi-defs.h

@@ -450,6 +450,9 @@ typedef struct AcpiTableMcfg AcpiTableMcfg;
 
 /*
  * TCPA Description Table
+ *
+ * Following Level 00, Rev 00.37 of specs:
+ * http://www.trustedcomputinggroup.org/resources/tcg_acpi_specification
  */
 struct Acpi20Tcpa {
     ACPI_TABLE_HEADER_DEF                    /* ACPI common table header */
@@ -459,6 +462,21 @@ struct Acpi20Tcpa {
 } QEMU_PACKED;
 typedef struct Acpi20Tcpa Acpi20Tcpa;
 
+/*
+ * TPM2
+ *
+ * Following Level 00, Rev 00.37 of specs:
+ * http://www.trustedcomputinggroup.org/resources/tcg_acpi_specification
+ */
+struct Acpi20TPM2 {
+    ACPI_TABLE_HEADER_DEF
+    uint16_t platform_class;
+    uint16_t reserved;
+    uint64_t control_area_address;
+    uint32_t start_method;
+} QEMU_PACKED;
+typedef struct Acpi20TPM2 Acpi20TPM2;
+
 /* DMAR - DMA Remapping table r2.2 */
 struct AcpiTableDmar {
     ACPI_TABLE_HEADER_DEF

include/hw/acpi/aml-build.h

@@ -202,6 +202,12 @@ Aml *aml_arg(int pos);
 Aml *aml_store(Aml *val, Aml *target);
 Aml *aml_and(Aml *arg1, Aml *arg2);
 Aml *aml_or(Aml *arg1, Aml *arg2);
+Aml *aml_shiftleft(Aml *arg1, Aml *count);
+Aml *aml_shiftright(Aml *arg1, Aml *count);
+Aml *aml_lless(Aml *arg1, Aml *arg2);
+Aml *aml_add(Aml *arg1, Aml *arg2);
+Aml *aml_increment(Aml *arg);
+Aml *aml_index(Aml *arg1, Aml *idx);
 Aml *aml_notify(Aml *arg1, Aml *arg2);
 Aml *aml_call1(const char *method, Aml *arg1);
 Aml *aml_call2(const char *method, Aml *arg1, Aml *arg2);
@@ -260,6 +266,7 @@ Aml *aml_device(const char *name_format, ...) GCC_FMT_ATTR(1, 2);
 Aml *aml_method(const char *name, int arg_count);
 Aml *aml_if(Aml *predicate);
 Aml *aml_else(void);
+Aml *aml_while(Aml *predicate);
 Aml *aml_package(uint8_t num_elements);
 Aml *aml_buffer(int buffer_size, uint8_t *byte_list);
 Aml *aml_resource_template(void);

include/hw/acpi/tpm.h

@@ -26,4 +26,9 @@
 #define TPM_TCPA_ACPI_CLASS_CLIENT  0
 #define TPM_TCPA_ACPI_CLASS_SERVER  1
 
+#define TPM2_ACPI_CLASS_CLIENT      0
+#define TPM2_ACPI_CLASS_SERVER      1
+
+#define TPM2_START_METHOD_MMIO      6
+
 #endif /* HW_ACPI_TPM_H */

include/hw/boards.h

@@ -19,31 +19,18 @@ typedef void QEMUMachineHotAddCPUFunc(const int64_t id, Error **errp);
 typedef int QEMUMachineGetKvmtypeFunc(const char *arg);
 
 struct QEMUMachine {
-    const char *family; /* NULL iff @name identifies a standalone machtype */
     const char *name;
-    const char *alias;
     const char *desc;
     QEMUMachineInitFunc *init;
-    QEMUMachineResetFunc *reset;
-    QEMUMachineHotAddCPUFunc *hot_add_cpu;
     QEMUMachineGetKvmtypeFunc *kvm_type;
     BlockInterfaceType block_default_type;
-    int units_per_default_bus;
     int max_cpus;
-    unsigned int no_serial:1,
+    unsigned int
-        no_parallel:1,
-        use_virtcon:1,
-        use_sclp:1,
-        no_floppy:1,
-        no_cdrom:1,
         no_sdcard:1,
         has_dynamic_sysbus:1;
     int is_default;
     const char *default_machine_opts;
     const char *default_boot_order;
-    const char *default_display;
-    GlobalProperty *compat_props;
-    const char *hw_version;
 };
 
 void memory_region_allocate_system_memory(MemoryRegion *mr, Object *owner,

include/hw/compat.h

@@ -1,6 +1,12 @@
 #ifndef HW_COMPAT_H
 #define HW_COMPAT_H
 
+#define HW_COMPAT_2_3 \
+        /* empty */
+
+#define HW_COMPAT_2_2 \
+        /* empty */
+
 #define HW_COMPAT_2_1 \
         {\
             .driver   = "intel-hda",\
@@ -30,6 +36,6 @@
             .driver   = "virtio-pci",\
             .property = "virtio-pci-bus-master-bug-migration",\
             .value    = "on",\
-        }
+        },
 
 #endif /* HW_COMPAT_H */

include/hw/i386/pc.h

@@ -73,8 +73,6 @@ typedef struct PCMachineClass PCMachineClass;
 #define PC_MACHINE_CLASS(klass) \
     OBJECT_CLASS_CHECK(PCMachineClass, (klass), TYPE_PC_MACHINE)
 
-void qemu_register_pc_machine(QEMUMachine *m);
-
 /* PC-style peripherals (also used by other machines).  */
 
 typedef struct PcPciInfo {
@@ -199,6 +197,7 @@ qemu_irq *pc_allocate_cpu_irq(void);
 DeviceState *pc_vga_init(ISABus *isa_bus, PCIBus *pci_bus);
 void pc_basic_device_init(ISABus *isa_bus, qemu_irq *gsi,
                           ISADevice **rtc_state,
+                          bool create_fdctrl,
                           ISADevice **floppy,
                           bool no_vmport,
                           uint32 hpet_irqs);
@@ -295,8 +294,19 @@ int e820_add_entry(uint64_t, uint64_t, uint32_t);
 int e820_get_num_entries(void);
 bool e820_get_entry(int, uint32_t, uint64_t *, uint64_t *);
 
+#define PC_COMPAT_2_3 \
+        HW_COMPAT_2_3
+
+#define PC_COMPAT_2_2 \
+        PC_COMPAT_2_3 \
+        HW_COMPAT_2_2
+
+#define PC_COMPAT_2_1 \
+        PC_COMPAT_2_2 \
+        HW_COMPAT_2_1
+
 #define PC_COMPAT_2_0 \
-        HW_COMPAT_2_1, \
+        PC_COMPAT_2_1 \
         {\
             .driver   = "virtio-scsi-pci",\
             .property = "any_layout",\
@@ -353,10 +363,10 @@ bool e820_get_entry(int, uint32_t, uint64_t *, uint64_t *);
             .driver   = "ioh3420",\
             .property = COMPAT_PROP_PCP,\
             .value    = "off",\
-        }
+        },
 
 #define PC_COMPAT_1_7 \
-        PC_COMPAT_2_0, \
+        PC_COMPAT_2_0 \
         {\
             .driver   = TYPE_USB_DEVICE,\
             .property = "msos-desc",\
@@ -371,10 +381,10 @@ bool e820_get_entry(int, uint32_t, uint64_t *, uint64_t *);
             .driver   = "hpet",\
             .property = HPET_INTCAP,\
             .value    = stringify(4),\
-        }
+        },
 
 #define PC_COMPAT_1_6 \
-        PC_COMPAT_1_7, \
+        PC_COMPAT_1_7 \
         {\
             .driver   = "e1000",\
             .property = "mitigation",\
@@ -395,10 +405,10 @@ bool e820_get_entry(int, uint32_t, uint64_t *, uint64_t *);
             .driver   = "q35-pcihost",\
             .property = "short_root_bus",\
             .value    = stringify(1),\
-        }
+        },
 
 #define PC_COMPAT_1_5 \
-        PC_COMPAT_1_6, \
+        PC_COMPAT_1_6 \
         {\
             .driver   = "Conroe-" TYPE_X86_CPU,\
             .property = "model",\
@@ -439,10 +449,10 @@ bool e820_get_entry(int, uint32_t, uint64_t *, uint64_t *);
             .driver   = "q35-pcihost",\
             .property = "short_root_bus",\
             .value    = stringify(0),\
-        }
+        },
 
 #define PC_COMPAT_1_4 \
-        PC_COMPAT_1_5, \
+        PC_COMPAT_1_5 \
         {\
             .driver   = "scsi-hd",\
             .property = "discard_granularity",\
@@ -504,14 +514,45 @@ bool e820_get_entry(int, uint32_t, uint64_t *, uint64_t *);
             .driver   = "486-" TYPE_X86_CPU,\
             .property = "model",\
             .value    = stringify(0),\
+        },
+
+static inline void pc_common_machine_options(MachineClass *m)
+{
+    m->default_boot_order = "cad";
 }
 
-#define PC_COMMON_MACHINE_OPTIONS \
+static inline void pc_default_machine_options(MachineClass *m)
-    .default_boot_order = "cad"
+{
+    pc_common_machine_options(m);
+    m->hot_add_cpu = pc_hot_add_cpu;
+    m->max_cpus = 255;
+}
 
-#define PC_DEFAULT_MACHINE_OPTIONS \
+#define DEFINE_PC_MACHINE(suffix, namestr, initfn, optsfn) \
-    PC_COMMON_MACHINE_OPTIONS, \
+    static void pc_machine_##suffix##_class_init(ObjectClass *oc, void *data) \
-    .hot_add_cpu = pc_hot_add_cpu, \
+    { \
-    .max_cpus = 255
+        MachineClass *mc = MACHINE_CLASS(oc); \
+        optsfn(mc); \
+        mc->name = namestr; \
+        mc->init = initfn; \
+    } \
+    static const TypeInfo pc_machine_type_##suffix = { \
+        .name       = namestr TYPE_MACHINE_SUFFIX, \
+        .parent     = TYPE_PC_MACHINE, \
+        .class_init = pc_machine_##suffix##_class_init, \
+    }; \
+    static void pc_machine_init_##suffix(void) \
+    { \
+        type_register(&pc_machine_type_##suffix); \
+    } \
+    machine_init(pc_machine_init_##suffix)
+
+#define SET_MACHINE_COMPAT(m, COMPAT) do { \
+    static GlobalProperty props[] = { \
+        COMPAT \
+        { /* end of list */ } \
+    }; \
+    (m)->compat_props = props; \
+} while (0)
 
 #endif

include/hw/pci/msi.h

@@ -39,6 +39,7 @@ int msi_init(struct PCIDevice *dev, uint8_t offset,
 void msi_uninit(struct PCIDevice *dev);
 void msi_reset(PCIDevice *dev);
 void msi_notify(PCIDevice *dev, unsigned int vector);
+void msi_send_message(PCIDevice *dev, MSIMessage msg);
 void msi_write_config(PCIDevice *dev, uint32_t addr, uint32_t val, int len);
 unsigned int msi_nr_vectors_allocated(const PCIDevice *dev);
 

include/hw/qdev-properties.h

@@ -6,6 +6,7 @@
 /*** qdev-properties.c ***/
 
 extern PropertyInfo qdev_prop_bit;
+extern PropertyInfo qdev_prop_bit64;
 extern PropertyInfo qdev_prop_bool;
 extern PropertyInfo qdev_prop_uint8;
 extern PropertyInfo qdev_prop_uint16;
@@ -50,6 +51,15 @@ extern PropertyInfo qdev_prop_arraylen;
         .qtype     = QTYPE_QBOOL,                                \
         .defval    = (bool)_defval,                              \
         }
+#define DEFINE_PROP_BIT64(_name, _state, _field, _bit, _defval) {       \
+        .name      = (_name),                                           \
+        .info      = &(qdev_prop_bit),                                  \
+        .bitnr    = (_bit),                                             \
+        .offset    = offsetof(_state, _field)                           \
+            + type_check(uint64_t, typeof_field(_state, _field)),       \
+        .qtype     = QTYPE_QBOOL,                                       \
+        .defval    = (bool)_defval,                                     \
+        }
 
 #define DEFINE_PROP_BOOL(_name, _state, _field, _defval) {       \
         .name      = (_name),                                    \

include/hw/s390x/s390_flic.h

@@ -17,10 +17,13 @@
 #include "hw/s390x/adapter.h"
 #include "hw/virtio/virtio.h"
 
+#define ADAPTER_ROUTES_MAX_GSI 64
+#define VIRTIO_CCW_QUEUE_MAX ADAPTER_ROUTES_MAX_GSI
+
 typedef struct AdapterRoutes {
     AdapterInfo adapter;
     int num_routes;
-    int gsi[VIRTIO_PCI_QUEUE_MAX];
+    int gsi[ADAPTER_ROUTES_MAX_GSI];
 } AdapterRoutes;
 
 #define TYPE_S390_FLIC_COMMON "s390-flic"

include/hw/virtio/virtio-bus.h

@@ -47,7 +47,6 @@ typedef struct VirtioBusClass {
     int (*load_config)(DeviceState *d, QEMUFile *f);
     int (*load_queue)(DeviceState *d, int n, QEMUFile *f);
     int (*load_done)(DeviceState *d, QEMUFile *f);
-    unsigned (*get_features)(DeviceState *d);
     bool (*query_guest_notifiers)(DeviceState *d);
     int (*set_guest_notifiers)(DeviceState *d, int nvqs, bool assign);
     int (*set_host_notifier)(DeviceState *d, int n, bool assigned);
@@ -56,7 +55,7 @@ typedef struct VirtioBusClass {
      * transport independent init function.
      * This is called by virtio-bus just after the device is plugged.
      */
-    void (*device_plugged)(DeviceState *d);
+    void (*device_plugged)(DeviceState *d, Error **errp);
     /*
      * transport independent exit function.
      * This is called by virtio-bus just before the device is unplugged.
@@ -75,7 +74,7 @@ struct VirtioBusState {
     BusState parent_obj;
 };
 
-int virtio_bus_device_plugged(VirtIODevice *vdev);
+void virtio_bus_device_plugged(VirtIODevice *vdev, Error **errp);
 void virtio_bus_reset(VirtioBusState *bus);
 void virtio_bus_device_unplugged(VirtIODevice *bus);
 /* Get the device id of the plugged device. */

include/hw/virtio/virtio.h

@@ -48,7 +48,7 @@ typedef struct VirtQueueElement
     struct iovec out_sg[VIRTQUEUE_MAX_SIZE];
 } VirtQueueElement;
 
-#define VIRTIO_PCI_QUEUE_MAX 64
+#define VIRTIO_QUEUE_MAX 1024
 
 #define VIRTIO_NO_VECTOR 0xffff
 
@@ -73,7 +73,8 @@ struct VirtIODevice
     uint8_t status;
     uint8_t isr;
     uint16_t queue_sel;
-    uint32_t guest_features;
+    uint64_t guest_features;
+    uint64_t host_features;
     size_t config_len;
     void *config;
     uint16_t config_vector;
@@ -95,8 +96,8 @@ typedef struct VirtioDeviceClass {
     /* This is what a VirtioDevice must implement */
     DeviceRealize realize;
     DeviceUnrealize unrealize;
-    uint32_t (*get_features)(VirtIODevice *vdev, uint32_t requested_features);
+    uint64_t (*get_features)(VirtIODevice *vdev, uint64_t requested_features);
-    uint32_t (*bad_features)(VirtIODevice *vdev);
+    uint64_t (*bad_features)(VirtIODevice *vdev);
     void (*set_features)(VirtIODevice *vdev, uint32_t val);
     void (*get_config)(VirtIODevice *vdev, uint8_t *config);
     void (*set_config)(VirtIODevice *vdev, const uint8_t *config);
@@ -175,6 +176,7 @@ void virtio_queue_set_addr(VirtIODevice *vdev, int n, hwaddr addr);
 hwaddr virtio_queue_get_addr(VirtIODevice *vdev, int n);
 void virtio_queue_set_num(VirtIODevice *vdev, int n, int num);
 int virtio_queue_get_num(VirtIODevice *vdev, int n);
+int virtio_get_num_queues(VirtIODevice *vdev);
 void virtio_queue_set_align(VirtIODevice *vdev, int n, int align);
 void virtio_queue_notify(VirtIODevice *vdev, int n);
 uint16_t virtio_queue_vector(VirtIODevice *vdev, int n);
@@ -193,10 +195,12 @@ typedef struct VirtIOSCSIConf VirtIOSCSIConf;
 typedef struct VirtIORNGConf VirtIORNGConf;
 
 #define DEFINE_VIRTIO_COMMON_FEATURES(_state, _field) \
-	DEFINE_PROP_BIT("indirect_desc", _state, _field, \
+    DEFINE_PROP_BIT64("indirect_desc", _state, _field,    \
                       VIRTIO_RING_F_INDIRECT_DESC, true), \
-	DEFINE_PROP_BIT("event_idx", _state, _field, \
+    DEFINE_PROP_BIT64("event_idx", _state, _field,        \
-			VIRTIO_RING_F_EVENT_IDX, true)
+                      VIRTIO_RING_F_EVENT_IDX, true),     \
+    DEFINE_PROP_BIT64("notify_on_empty", _state, _field,  \
+                      VIRTIO_F_NOTIFY_ON_EMPTY, true)
 
 hwaddr virtio_queue_get_desc_addr(VirtIODevice *vdev, int n);
 hwaddr virtio_queue_get_avail_addr(VirtIODevice *vdev, int n);
@@ -223,21 +227,21 @@ void virtio_irq(VirtQueue *vq);
 VirtQueue *virtio_vector_first_queue(VirtIODevice *vdev, uint16_t vector);
 VirtQueue *virtio_vector_next_queue(VirtQueue *vq);
 
-static inline void virtio_add_feature(uint32_t *features, unsigned int fbit)
+static inline void virtio_add_feature(uint64_t *features, unsigned int fbit)
 {
-    assert(fbit < 32);
+    assert(fbit < 64);
     *features |= (1 << fbit);
 }
 
-static inline void virtio_clear_feature(uint32_t *features, unsigned int fbit)
+static inline void virtio_clear_feature(uint64_t *features, unsigned int fbit)
 {
-    assert(fbit < 32);
+    assert(fbit < 64);
     *features &= ~(1 << fbit);
 }
 
-static inline bool __virtio_has_feature(uint32_t features, unsigned int fbit)
+static inline bool __virtio_has_feature(uint64_t features, unsigned int fbit)
 {
-    assert(fbit < 32);
+    assert(fbit < 64);
     return !!(features & (1 << fbit));
 }
 

include/sysemu/tpm.h

@@ -20,11 +20,24 @@ int tpm_config_parse(QemuOptsList *opts_list, const char *optarg);
 int tpm_init(void);
 void tpm_cleanup(void);
 
+typedef enum  TPMVersion {
+    TPM_VERSION_UNSPEC = 0,
+    TPM_VERSION_1_2 = 1,
+    TPM_VERSION_2_0 = 2,
+} TPMVersion;
+
+TPMVersion tpm_tis_get_tpm_version(Object *obj);
+
 #define TYPE_TPM_TIS                "tpm-tis"
 
-static inline bool tpm_find(void)
+static inline TPMVersion tpm_get_version(void)
 {
-    return object_resolve_path_type("", TYPE_TPM_TIS, NULL);
+    Object *obj = object_resolve_path_type("", TYPE_TPM_TIS, NULL);
+
+    if (obj) {
+        return tpm_tis_get_tpm_version(obj);
+    }
+    return TPM_VERSION_UNSPEC;
 }
 
 #endif /* QEMU_TPM_H */

include/sysemu/tpm_backend.h

@@ -88,6 +88,10 @@ struct TPMDriverOps {
     void (*cancel_cmd)(TPMBackend *t);
 
     bool (*get_tpm_established_flag)(TPMBackend *t);
+
+    int (*reset_tpm_established_flag)(TPMBackend *t, uint8_t locty);
+
+    TPMVersion (*get_tpm_version)(TPMBackend *t);
 };
 
 
@@ -191,6 +195,15 @@ void tpm_backend_cancel_cmd(TPMBackend *s);
  */
 bool tpm_backend_get_tpm_established_flag(TPMBackend *s);
 
+/**
+ * tpm_backend_reset_tpm_established_flag:
+ * @s: the backend
+ * @locty: the locality number
+ *
+ * Reset the TPM establishment flag.
+ */
+int tpm_backend_reset_tpm_established_flag(TPMBackend *s, uint8_t locty);
+
 /**
  * tpm_backend_open:
  * @s: the backend to open
@@ -201,6 +214,16 @@ bool tpm_backend_get_tpm_established_flag(TPMBackend *s);
  */
 void tpm_backend_open(TPMBackend *s, Error **errp);
 
+/**
+ * tpm_backend_get_tpm_version:
+ * @s: the backend to call into
+ *
+ * Get the TPM Version that is emulated at the backend.
+ *
+ * Returns TPMVersion.
+ */
+TPMVersion tpm_backend_get_tpm_version(TPMBackend *s);
+
 TPMBackend *qemu_find_tpm(const char *id);
 
 const TPMDriverOps *tpm_get_backend_driver(const char *type);

net/vhost-user.c

@@ -121,35 +121,39 @@ static void net_vhost_user_event(void *opaque, int event)
     case CHR_EVENT_OPENED:
         vhost_user_start(s);
         net_vhost_link_down(s, false);
-        error_report("chardev \"%s\" went up", s->chr->label);
+        error_report("chardev \"%s\" went up", s->nc.info_str);
         break;
     case CHR_EVENT_CLOSED:
         net_vhost_link_down(s, true);
         vhost_user_stop(s);
-        error_report("chardev \"%s\" went down", s->chr->label);
+        error_report("chardev \"%s\" went down", s->nc.info_str);
         break;
     }
 }
 
 static int net_vhost_user_init(NetClientState *peer, const char *device,
-                               const char *name, CharDriverState *chr)
+                               const char *name, CharDriverState *chr,
+                               uint32_t queues)
 {
     NetClientState *nc;
     VhostUserState *s;
+    int i;
 
+    for (i = 0; i < queues; i++) {
         nc = qemu_new_net_client(&net_vhost_user_info, peer, device, name);
 
-    snprintf(nc->info_str, sizeof(nc->info_str), "vhost-user to %s",
+        snprintf(nc->info_str, sizeof(nc->info_str), "vhost-user%d to %s",
-             chr->label);
+                 i, chr->label);
 
         s = DO_UPCAST(VhostUserState, nc, nc);
 
         /* We don't provide a receive callback */
         s->nc.receive_disabled = 1;
         s->chr = chr;
+        s->nc.queue_index = i;
 
         qemu_chr_add_handlers(s->chr, NULL, NULL, net_vhost_user_event, s);
-
+    }
     return 0;
 }
 
@@ -226,6 +230,7 @@ int net_init_vhost_user(const NetClientOptions *opts, const char *name,
                         NetClientState *peer, Error **errp)
 {
     /* FIXME error_setg(errp, ...) on failure */
+    uint32_t queues;
     const NetdevVhostUserOptions *vhost_user_opts;
     CharDriverState *chr;
 
@@ -244,6 +249,12 @@ int net_init_vhost_user(const NetClientOptions *opts, const char *name,
         return -1;
     }
 
-
+    /* number of queues for multiqueue */
-    return net_vhost_user_init(peer, "vhost_user", name, chr);
+    if (vhost_user_opts->has_queues) {
+        queues = vhost_user_opts->queues;
+    } else {
+        queues = 1;
+    }
+
+    return net_vhost_user_init(peer, "vhost_user", name, chr, queues);
 }

qapi-schema.json

@@ -2444,12 +2444,16 @@
 #
 # @vhostforce: #optional vhost on for non-MSIX virtio guests (default: false).
 #
+# @queues: #optional number of queues to be created for multiqueue vhost-user
+#          (default: 1) (Since 2.4)
+#
 # Since 2.1
 ##
 { 'struct': 'NetdevVhostUserOptions',
   'data': {
     'chardev':        'str',
-    '*vhostforce':    'bool' } }
+    '*vhostforce':    'bool',
+    '*queues':        'uint32' } }
 
 ##
 # @NetClientOptions

qemu-options.hx

@@ -1955,13 +1955,14 @@ The hubport netdev lets you connect a NIC to a QEMU "vlan" instead of a single
 netdev.  @code{-net} and @code{-device} with parameter @option{vlan} create the
 required hub automatically.
 
-@item -netdev vhost-user,chardev=@var{id}[,vhostforce=on|off]
+@item -netdev vhost-user,chardev=@var{id}[,vhostforce=on|off][,queues=n]
 
 Establish a vhost-user netdev, backed by a chardev @var{id}. The chardev should
 be a unix domain socket backed one. The vhost-user uses a specifically defined
 protocol to pass vhost ioctl replacement messages to an application on the other
 end of the socket. On non-MSIX guests, the feature can be forced with
-@var{vhostforce}.
+@var{vhostforce}. Use 'queues=@var{n}' to specify the number of queues to
+be created for multiqueue vhost-user.
 
 Example:
 @example

vl.c

@@ -1314,32 +1314,17 @@ static void machine_class_init(ObjectClass *oc, void *data)
 {
     MachineClass *mc = MACHINE_CLASS(oc);
     QEMUMachine *qm = data;
-
-    mc->family = qm->family;
     mc->name = qm->name;
-    mc->alias = qm->alias;
     mc->desc = qm->desc;
     mc->init = qm->init;
-    mc->reset = qm->reset;
-    mc->hot_add_cpu = qm->hot_add_cpu;
     mc->kvm_type = qm->kvm_type;
     mc->block_default_type = qm->block_default_type;
-    mc->units_per_default_bus = qm->units_per_default_bus;
     mc->max_cpus = qm->max_cpus;
-    mc->no_serial = qm->no_serial;
-    mc->no_parallel = qm->no_parallel;
-    mc->use_virtcon = qm->use_virtcon;
-    mc->use_sclp = qm->use_sclp;
-    mc->no_floppy = qm->no_floppy;
-    mc->no_cdrom = qm->no_cdrom;
     mc->no_sdcard = qm->no_sdcard;
     mc->has_dynamic_sysbus = qm->has_dynamic_sysbus;
     mc->is_default = qm->is_default;
     mc->default_machine_opts = qm->default_machine_opts;
     mc->default_boot_order = qm->default_boot_order;
-    mc->default_display = qm->default_display;
-    mc->compat_props = qm->compat_props;
-    mc->hw_version = qm->hw_version;
 }
 
 int qemu_register_machine(QEMUMachine *m)