* Kconfig improvements (msi_nonbroken, imply for default PCI devices)

* intel-iommu: sharing passthrough FlatViews (Peter)
 * Fix for SEV with VFIO (Brijesh)
 * Allow compilation without CONFIG_PARALLEL (Thomas)
 -----BEGIN PGP SIGNATURE-----
 
 iQFIBAABCAAyFiEE8TM4V0tmI4mGbHaCv/vSX3jHroMFAlyTvvAUHHBib256aW5p
 QHJlZGhhdC5jb20ACgkQv/vSX3jHroNNwwf/RrtjBoqu8Ulu6k+HJczdpkhO44c5
 R7sidGaOBHVjT+EsaYZxanXQlsbpDPiXCRoMRMln+O3Kgso/UlVTLBfctIjuf5kp
 P8Amp8rw843yl3TQ+Xaqat1qtfVVN2xjRDoyRwWrTU5w52MVVsan2j1/XzGX/7Bb
 Y3gXRxsN7MyjDCXxhxVwQCxKU2ue3ytvnfdCnu1SNZxZEaFAyGprTNCCTXYugehl
 bVauAs/0qOZWEyvElinNEz+zbqMTm07ULAWBRXgCDcOudsidZFtu0Xl62dXlp1Ou
 0zkaoGiOdMM6OXZkLd6vOK8mY9XDuqaUZE3zAeFMJsK1wSnZdGUVCJO1Hw==
 =Pkcj
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

* Kconfig improvements (msi_nonbroken, imply for default PCI devices)
* intel-iommu: sharing passthrough FlatViews (Peter)
* Fix for SEV with VFIO (Brijesh)
* Allow compilation without CONFIG_PARALLEL (Thomas)

# gpg: Signature made Thu 21 Mar 2019 16:42:24 GMT
# gpg:                using RSA key F13338574B662389866C7682BFFBD25F78C7AE83
# gpg:                issuer "pbonzini@redhat.com"
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>" [full]
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4  E2F7 7E15 100C CD36 69B1
#      Subkey fingerprint: F133 3857 4B66 2389 866C  7682 BFFB D25F 78C7 AE83

* remotes/bonzini/tags/for-upstream: (23 commits)
  virtio-vga: only enable for specific boards
  config-all-devices.mak: rebuild on reconfigure
  minikconf: fix parser typo
  intel-iommu: optimize nodmar memory regions
  test-announce-self: convert to qgraph
  hw/alpha/Kconfig: DP264 hardware requires e1000 network card
  hw/hppa/Kconfig: Dino board requires e1000 network card
  hw/sh4/Kconfig: r2d machine requires the rtl8139 network card
  hw/ppc/Kconfig: e500 based machines require virtio-net-pci device
  hw/ppc/Kconfig: Bamboo machine requires e1000 network card
  hw/mips/Kconfig: Fulong 2e board requires ati-vga/rtl8139 PCI devices
  hw/mips/Kconfig: Malta machine requires the pcnet network card
  hw/i386/Kconfig: enable devices that can be created by default
  hw/isa/Kconfig: PIIX4 southbridge requires USB UHCI
  hw/isa/Kconfig: i82378 SuperIO requires PC speaker device
  prep: do not select I82374
  hw/i386/Kconfig: PC uses I8257, not I82374
  hw/char/parallel: Make it possible to compile also without CONFIG_PARALLEL
  target/i386: sev: Do not pin the ram device memory region
  memory: Fix the memory region type assignment order
  ...

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

# Conflicts:
#	hw/rdma/Makefile.objs
#	hw/riscv/sifive_plic.c

Kconfig.host

@@ -31,3 +31,6 @@ config XEN
 
 config VIRTFS
     bool
+
+config PVRDMA
+    bool

Makefile

@@ -331,10 +331,10 @@ SUBDIR_DEVICES_MAK=$(patsubst %, %/config-devices.mak, $(filter %-softmmu, $(TAR
 SUBDIR_DEVICES_MAK_DEP=$(patsubst %, %.d, $(SUBDIR_DEVICES_MAK))
 
 ifeq ($(SUBDIR_DEVICES_MAK),)
-config-all-devices.mak:
+config-all-devices.mak: config-host.mak
 	$(call quiet-command,echo '# no devices' > $@,"GEN","$@")
 else
-config-all-devices.mak: $(SUBDIR_DEVICES_MAK)
+config-all-devices.mak: $(SUBDIR_DEVICES_MAK) config-host.mak
 	$(call quiet-command, sed -n \
              's|^\([^=]*\)=\(.*\)$$|\1:=$$(findstring y,$$(\1)\2)|p' \
              $(SUBDIR_DEVICES_MAK) | sort -u > $@, \
@@ -356,7 +356,8 @@ MINIKCONF_ARGS = \
     CONFIG_X11=$(CONFIG_X11) \
     CONFIG_VHOST_USER=$(CONFIG_VHOST_USER) \
     CONFIG_VIRTFS=$(CONFIG_VIRTFS) \
-    CONFIG_LINUX=$(CONFIG_LINUX)
+    CONFIG_LINUX=$(CONFIG_LINUX) \
+    CONFIG_PVRDMA=$(CONFIG_PVRDMA)
 
 MINIKCONF_INPUTS = $(SRC_PATH)/Kconfig.host $(SRC_PATH)/hw/Kconfig
 MINIKCONF = $(PYTHON) $(SRC_PATH)/scripts/minikconf.py \

default-configs/mips-softmmu-common.mak

@@ -35,6 +35,7 @@ CONFIG_MIPS_CPS=y
 CONFIG_MIPS_ITU=y
 CONFIG_R4K=y
 CONFIG_MALTA=y
+CONFIG_PCNET_PCI=y
 CONFIG_MIPSSIM=y
 CONFIG_ACPI_SMBUS=y
 CONFIG_SMBUS_EEPROM=y

default-configs/mips64el-softmmu.mak

@@ -6,6 +6,8 @@ CONFIG_RC4030=y
 CONFIG_DP8393X=y
 CONFIG_DS1225Y=y
 CONFIG_FULONG=y
+CONFIG_ATI_VGA=y
+CONFIG_RTL8139_PCI=y
 CONFIG_JAZZ=y
 CONFIG_G364FB=y
 CONFIG_JAZZ_LED=y

hw/Kconfig

@@ -26,6 +26,7 @@ source pci-bridge/Kconfig
 source pci-host/Kconfig
 source pcmcia/Kconfig
 source pci/Kconfig
+source rdma/Kconfig
 source scsi/Kconfig
 source sd/Kconfig
 source smbios/Kconfig

hw/alpha/Kconfig

@@ -2,6 +2,7 @@ config DP264
     bool
     imply PCI_DEVICES
     imply TEST_DEVICES
+    imply E1000_PCI
     select I82374
     select I8254
     select I8259

hw/char/Makefile.objs

@@ -2,7 +2,7 @@ common-obj-$(CONFIG_IPACK) += ipoctal232.o
 common-obj-$(CONFIG_ESCC) += escc.o
 common-obj-$(CONFIG_NRF51_SOC) += nrf51_uart.o
 common-obj-$(CONFIG_PARALLEL) += parallel.o
-common-obj-$(CONFIG_PARALLEL) += parallel-isa.o
+common-obj-$(CONFIG_ISA_BUS) += parallel-isa.o
 common-obj-$(CONFIG_PL011) += pl011.o
 common-obj-$(CONFIG_SERIAL) += serial.o
 common-obj-$(CONFIG_SERIAL_ISA) += serial-isa.o

hw/char/parallel-isa.c

@@ -1,6 +1,9 @@
 /*
  * QEMU Parallel PORT (ISA bus helpers)
  *
+ * These functions reside in a separate file since they also might be
+ * required for linking when compiling QEMU without CONFIG_PARALLEL.
+ *
  * Copyright (c) 2003 Fabrice Bellard
  *
  * SPDX-License-Identifier: MIT

hw/display/Kconfig

@@ -100,7 +100,7 @@ config VIRTIO_GPU
 
 config VIRTIO_VGA
     bool
-    default y if PCI_DEVICES
+    # defaults to "N", enabled by specific boards
     depends on VIRTIO_PCI
     select VGA
 

hw/hppa/Kconfig

@@ -1,6 +1,8 @@
 config DINO
     bool
     imply PCI_DEVICES
+    imply E1000_PCI
+    imply VIRTIO_VGA
     select PCI
     select SERIAL
     select ISA_BUS

hw/i386/Kconfig

@@ -9,6 +9,7 @@ config PC
     imply ISA_IPMI_KCS
     imply ISA_IPMI_BT
     imply ISA_DEBUG
+    imply PARALLEL
     imply PCI_DEVICES
     imply PVPANIC
     imply QXL
@@ -17,16 +18,15 @@ config PC
     imply TEST_DEVICES
     imply TPM_CRB
     imply TPM_TIS
+    imply VGA_PCI
+    imply VIRTIO_VGA
     select FDC
     select I8259
     select I8254
     select PCKBD
     select PCSPK
-    select I82374
     select I8257
     select MC146818RTC
-    # Needed by the board code:
-    select PARALLEL
     # For ACPI builder:
     select SERIAL_ISA
     select ACPI_VMGENID
@@ -49,6 +49,7 @@ config PC_ACPI
 
 config I440FX
     bool
+    imply E1000_PCI
     select PC_PCI
     select PC_ACPI
     select ACPI_SMBUS
@@ -74,6 +75,7 @@ config Q35
     bool
     imply VTD
     imply AMD_IOMMU
+    imply E1000E_PCI_EXPRESS
     select PC_PCI
     select PC_ACPI
     select PCI_EXPRESS_Q35

hw/i386/intel_iommu.c

@@ -1485,11 +1485,11 @@ static bool vtd_switch_address_space(VTDAddressSpace *as)
 
     /* Turn off first then on the other */
     if (use_iommu) {
-        memory_region_set_enabled(&as->sys_alias, false);
+        memory_region_set_enabled(&as->nodmar, false);
         memory_region_set_enabled(MEMORY_REGION(&as->iommu), true);
     } else {
         memory_region_set_enabled(MEMORY_REGION(&as->iommu), false);
-        memory_region_set_enabled(&as->sys_alias, true);
+        memory_region_set_enabled(&as->nodmar, true);
     }
 
     if (take_bql) {
@@ -3286,7 +3286,8 @@ VTDAddressSpace *vtd_find_add_as(IntelIOMMUState *s, PCIBus *bus, int devfn)
     vtd_dev_as = vtd_bus->dev_as[devfn];
 
     if (!vtd_dev_as) {
-        snprintf(name, sizeof(name), "intel_iommu_devfn_%d", devfn);
+        snprintf(name, sizeof(name), "vtd-%02x.%x", PCI_SLOT(devfn),
+                 PCI_FUNC(devfn));
         vtd_bus->dev_as[devfn] = vtd_dev_as = g_malloc0(sizeof(VTDAddressSpace));
 
         vtd_dev_as->bus = bus;
@@ -3295,44 +3296,53 @@ VTDAddressSpace *vtd_find_add_as(IntelIOMMUState *s, PCIBus *bus, int devfn)
         vtd_dev_as->context_cache_entry.context_cache_gen = 0;
         vtd_dev_as->iova_tree = iova_tree_new();
 
+        memory_region_init(&vtd_dev_as->root, OBJECT(s), name, UINT64_MAX);
+        address_space_init(&vtd_dev_as->as, &vtd_dev_as->root, "vtd-root");
+
         /*
-         * Memory region relationships looks like (Address range shows
+         * Build the DMAR-disabled container with aliases to the
-         * only lower 32 bits to make it short in length...):
+         * shared MRs.  Note that aliasing to a shared memory region
-         *
+         * could help the memory API to detect same FlatViews so we
-         * |-----------------+-------------------+----------|
+         * can have devices to share the same FlatView when DMAR is
-         * | Name            | Address range     | Priority |
+         * disabled (either by not providing "intel_iommu=on" or with
-         * |-----------------+-------------------+----------+
+         * "iommu=pt").  It will greatly reduce the total number of
-         * | vtd_root        | 00000000-ffffffff |        0 |
+         * FlatViews of the system hence VM runs faster.
-         * |  intel_iommu    | 00000000-ffffffff |        1 |
-         * |  vtd_sys_alias  | 00000000-ffffffff |        1 |
-         * |  intel_iommu_ir | fee00000-feefffff |       64 |
-         * |-----------------+-------------------+----------|
-         *
-         * We enable/disable DMAR by switching enablement for
-         * vtd_sys_alias and intel_iommu regions. IR region is always
-         * enabled.
          */
+        memory_region_init_alias(&vtd_dev_as->nodmar, OBJECT(s),
+                                 "vtd-nodmar", &s->mr_nodmar, 0,
+                                 memory_region_size(&s->mr_nodmar));
+
+        /*
+         * Build the per-device DMAR-enabled container.
+         *
+         * TODO: currently we have per-device IOMMU memory region only
+         * because we have per-device IOMMU notifiers for devices.  If
+         * one day we can abstract the IOMMU notifiers out of the
+         * memory regions then we can also share the same memory
+         * region here just like what we've done above with the nodmar
+         * region.
+         */
+        strcat(name, "-dmar");
         memory_region_init_iommu(&vtd_dev_as->iommu, sizeof(vtd_dev_as->iommu),
                                  TYPE_INTEL_IOMMU_MEMORY_REGION, OBJECT(s),
-                                 "intel_iommu_dmar",
+                                 name, UINT64_MAX);
-                                 UINT64_MAX);
+        memory_region_init_alias(&vtd_dev_as->iommu_ir, OBJECT(s), "vtd-ir",
-        memory_region_init_alias(&vtd_dev_as->sys_alias, OBJECT(s),
+                                 &s->mr_ir, 0, memory_region_size(&s->mr_ir));
-                                 "vtd_sys_alias", get_system_memory(),
+        memory_region_add_subregion_overlap(MEMORY_REGION(&vtd_dev_as->iommu),
-                                 0, memory_region_size(get_system_memory()));
-        memory_region_init_io(&vtd_dev_as->iommu_ir, OBJECT(s),
-                              &vtd_mem_ir_ops, s, "intel_iommu_ir",
-                              VTD_INTERRUPT_ADDR_SIZE);
-        memory_region_init(&vtd_dev_as->root, OBJECT(s),
-                           "vtd_root", UINT64_MAX);
-        memory_region_add_subregion_overlap(&vtd_dev_as->root,
                                             VTD_INTERRUPT_ADDR_FIRST,
-                                            &vtd_dev_as->iommu_ir, 64);
+                                            &vtd_dev_as->iommu_ir, 1);
-        address_space_init(&vtd_dev_as->as, &vtd_dev_as->root, name);
+
-        memory_region_add_subregion_overlap(&vtd_dev_as->root, 0,
+        /*
-                                            &vtd_dev_as->sys_alias, 1);
+         * Hook both the containers under the root container, we
+         * switch between DMAR & noDMAR by enable/disable
+         * corresponding sub-containers
+         */
         memory_region_add_subregion_overlap(&vtd_dev_as->root, 0,
                                             MEMORY_REGION(&vtd_dev_as->iommu),
-                                            1);
+                                            0);
+        memory_region_add_subregion_overlap(&vtd_dev_as->root, 0,
+                                            &vtd_dev_as->nodmar, 0);
+
         vtd_switch_address_space(vtd_dev_as);
     }
     return vtd_dev_as;
@@ -3676,6 +3686,21 @@ static void vtd_realize(DeviceState *dev, Error **errp)
     memset(s->vtd_as_by_bus_num, 0, sizeof(s->vtd_as_by_bus_num));
     memory_region_init_io(&s->csrmem, OBJECT(s), &vtd_mem_ops, s,
                           "intel_iommu", DMAR_REG_SIZE);
+
+    /* Create the shared memory regions by all devices */
+    memory_region_init(&s->mr_nodmar, OBJECT(s), "vtd-nodmar",
+                       UINT64_MAX);
+    memory_region_init_io(&s->mr_ir, OBJECT(s), &vtd_mem_ir_ops,
+                          s, "vtd-ir", VTD_INTERRUPT_ADDR_SIZE);
+    memory_region_init_alias(&s->mr_sys_alias, OBJECT(s),
+                             "vtd-sys-alias", get_system_memory(), 0,
+                             memory_region_size(get_system_memory()));
+    memory_region_add_subregion_overlap(&s->mr_nodmar, 0,
+                                        &s->mr_sys_alias, 0);
+    memory_region_add_subregion_overlap(&s->mr_nodmar,
+                                        VTD_INTERRUPT_ADDR_FIRST,
+                                        &s->mr_ir, 1);
+
     sysbus_init_mmio(SYS_BUS_DEVICE(s), &s->csrmem);
     /* No corresponding destroy */
     s->iotlb = g_hash_table_new_full(vtd_uint64_hash, vtd_uint64_equal,

hw/intc/Kconfig

@@ -12,12 +12,15 @@ config IOAPIC
 
 config ARM_GIC
     bool
+    select MSI_NONBROKEN
 
 config OPENPIC
     bool
+    select MSI_NONBROKEN
 
 config APIC
     bool
+    select MSI_NONBROKEN
 
 config ARM_GIC_KVM
     bool

hw/isa/Kconfig

@@ -11,6 +11,7 @@ config I82378
     select I8254
     select I82374
     select MC146818RTC
+    select PCSPK
 
 config PC87312
     bool
@@ -29,6 +30,7 @@ config PIIX4
     # For historical reasons, SuperIO devices are created in the board
     # for PIIX4.
     select ISA_BUS
+    select USB_UHCI
 
 config VT82C686
     bool

hw/misc/Kconfig

@@ -34,7 +34,7 @@ config PCI_TESTDEV
 config EDU
     bool
     default y if TEST_DEVICES
-    depends on PCI
+    depends on PCI && MSI_NONBROKEN
 
 config PCA9552
     bool
@@ -67,7 +67,7 @@ config MACIO
 config IVSHMEM_DEVICE
     bool
     default y if PCI_DEVICES
-    depends on PCI && LINUX && IVSHMEM
+    depends on PCI && LINUX && IVSHMEM && MSI_NONBROKEN
 
 config ECCMEMCTL
     bool

hw/net/Kconfig

@@ -28,7 +28,7 @@ config E1000_PCI
 config E1000E_PCI_EXPRESS
     bool
     default y if PCI_DEVICES
-    depends on PCI_EXPRESS
+    depends on PCI_EXPRESS && MSI_NONBROKEN
 
 config RTL8139_PCI
     bool
@@ -107,7 +107,7 @@ config ETSEC
 config ROCKER
     bool
     default y if PCI_DEVICES
-    depends on PCI
+    depends on PCI && MSI_NONBROKEN
 
 config CAN_BUS
     bool

hw/pci-bridge/Kconfig

@@ -1,7 +1,7 @@
 config PCIE_PORT
     bool
     default y if PCI_DEVICES
-    depends on PCI_EXPRESS
+    depends on PCI_EXPRESS && MSI_NONBROKEN
 
 config PXB
     bool
@@ -10,12 +10,12 @@ config PXB
 config XIO3130
     bool
     default y if PCI_DEVICES
-    depends on PCI_EXPRESS
+    depends on PCI_EXPRESS && MSI_NONBROKEN
 
 config IOH3420
     bool
     default y if PCI_DEVICES
-    depends on PCI_EXPRESS
+    depends on PCI_EXPRESS && MSI_NONBROKEN
 
 config I82801B11
     bool

hw/pci-host/Kconfig

@@ -49,3 +49,4 @@ config PCI_EXPRESS_XILINX
 config PCI_EXPRESS_DESIGNWARE
     bool
     select PCI_EXPRESS
+    select MSI_NONBROKEN

hw/pci/Kconfig

@@ -7,3 +7,9 @@ config PCI_EXPRESS
 
 config PCI_DEVICES
     bool
+
+config MSI_NONBROKEN
+    # selected by interrupt controllers that do not support MSI,
+    # or support it and have a good implementation. See commit
+    # 47d2b0f33c664533b8dbd5cb17faa8e6a01afe1f.
+    bool

hw/ppc/Kconfig

@@ -2,12 +2,14 @@ config PSERIES
     bool
     imply PCI_DEVICES
     imply TEST_DEVICES
+    imply VIRTIO_VGA
     select DIMM
     select PCI
     select SPAPR_VSCSI
     select VFIO if LINUX   # needed by spapr_pci_vfio.c
     select XICS_SPAPR
     select XIVE_SPAPR
+    select MSI_NONBROKEN
 
 config SPAPR_RNG
     bool
@@ -36,6 +38,7 @@ config PPC440
     bool
     imply PCI_DEVICES
     imply TEST_DEVICES
+    imply E1000_PCI
     select PCI_EXPRESS
     select PPC4XX
     select SERIAL
@@ -63,7 +66,6 @@ config PREP
     imply TEST_DEVICES
     select CS4231A
     select PREP_PCI
-    select I82374
     select I82378
     select LSI_SCSI_PCI
     select M48T59
@@ -97,6 +99,7 @@ config MAC_NEWWORLD
 config E500
     bool
     imply AT24C
+    imply VIRTIO_PCI
     select ETSEC
     select OPENPIC
     select PLATFORM_BUS

hw/rdma/Kconfig

@@ -0,0 +1,3 @@
+config VMW_PVRDMA
+    default y if PCI_DEVICES
+    depends on PVRDMA && PCI && MSI_NONBROKEN

hw/rdma/Makefile.objs

@@ -1,5 +1,3 @@
-ifeq ($(CONFIG_PVRDMA),y)
+obj-$(CONFIG_VMW_PVRDMA) += rdma_utils.o rdma_backend.o rdma_rm.o rdma.o
-obj-$(CONFIG_PCI) += rdma_utils.o rdma_backend.o rdma_rm.o rdma.o
+obj-$(CONFIG_VMW_PVRDMA) += vmw/pvrdma_dev_ring.o vmw/pvrdma_cmd.o \
-obj-$(CONFIG_PCI) += vmw/pvrdma_dev_ring.o vmw/pvrdma_cmd.o \
                      vmw/pvrdma_qp_ops.o vmw/pvrdma_main.o
-endif

hw/riscv/Kconfig

@@ -6,6 +6,7 @@ config HART
 
 config SIFIVE
     bool
+    select MSI_NONBROKEN
 
 config SIFIVE_E
     bool

hw/riscv/sifive_plic.c

@@ -22,6 +22,7 @@
 #include "qemu/log.h"
 #include "qemu/error-report.h"
 #include "hw/sysbus.h"
+#include "hw/pci/msi.h"
 #include "target/riscv/cpu.h"
 #include "sysemu/sysemu.h"
 #include "hw/riscv/sifive_plic.h"
@@ -458,6 +459,8 @@ static void sifive_plic_realize(DeviceState *dev, Error **errp)
             exit(1);
         }
     }
+
+    msi_nonbroken = true;
 }
 
 static void sifive_plic_class_init(ObjectClass *klass, void *data)

hw/s390x/Kconfig

@@ -9,3 +9,4 @@ config S390_CCW_VIRTIO
     select S390_FLIC
     select SCLPCONSOLE
     select VIRTIO_CCW
+    select MSI_NONBROKEN

hw/sh4/Kconfig

@@ -2,6 +2,7 @@ config R2D
     bool
     imply PCI_DEVICES
     imply TEST_DEVICES
+    imply RTL8139_PCI
     select I82378 if TEST_DEVICES
     select IDE_MMIO
     select PFLASH_CFI02

hw/sparc64/Kconfig

@@ -3,13 +3,13 @@ config SUN4U
     imply PCI_DEVICES
     imply SUNHME
     imply TEST_DEVICES
+    imply PARALLEL
     select M48T59
     select ISA_BUS
     select FDC
     select SERIAL_ISA
     select PCI_SABRE
     select IDE_CMD646
-    select PARALLEL
     select PCKBD
     select SIMBA
 

include/hw/i386/intel_iommu.h

@@ -105,8 +105,8 @@ struct VTDAddressSpace {
     uint8_t devfn;
     AddressSpace as;
     IOMMUMemoryRegion iommu;
-    MemoryRegion root;
+    MemoryRegion root;          /* The root container of the device */
-    MemoryRegion sys_alias;
+    MemoryRegion nodmar;        /* The alias of shared nodmar MR */
     MemoryRegion iommu_ir;      /* Interrupt region: 0xfeeXXXXX */
     IntelIOMMUState *iommu_state;
     VTDContextCacheEntry context_cache_entry;
@@ -221,6 +221,9 @@ union VTD_IR_MSIAddress {
 struct IntelIOMMUState {
     X86IOMMUState x86_iommu;
     MemoryRegion csrmem;
+    MemoryRegion mr_nodmar;
+    MemoryRegion mr_ir;
+    MemoryRegion mr_sys_alias;
     uint8_t csr[DMAR_REG_SIZE];     /* register values */
     uint8_t wmask[DMAR_REG_SIZE];   /* R/W bytes */
     uint8_t w1cmask[DMAR_REG_SIZE]; /* RW1C(Write 1 to Clear) bytes */

memory.c

@@ -1649,10 +1649,17 @@ void memory_region_init_ram_device_ptr(MemoryRegion *mr,
                                        uint64_t size,
                                        void *ptr)
 {
-    memory_region_init_ram_ptr(mr, owner, name, size, ptr);
+    memory_region_init(mr, owner, name, size);
+    mr->ram = true;
+    mr->terminates = true;
     mr->ram_device = true;
     mr->ops = &ram_device_mem_ops;
     mr->opaque = mr;
+    mr->destructor = memory_region_destructor_ram;
+    mr->dirty_log_mask = tcg_enabled() ? (1 << DIRTY_MEMORY_CODE) : 0;
+    /* qemu_ram_alloc_from_ptr cannot fail with ptr != NULL.  */
+    assert(ptr != NULL);
+    mr->ram_block = qemu_ram_alloc_from_ptr(size, ptr, mr, &error_fatal);
 }
 
 void memory_region_init_alias(MemoryRegion *mr,

scripts/minikconf.py

@@ -592,7 +592,7 @@ class KconfigParser:
         if not self.src.startswith(rest, self.cursor):
             return False
         length = len(rest)
-        if self.src[self.cursor + length].isalnum() or self.src[self.cursor + length] == '|':
+        if self.src[self.cursor + length].isalnum() or self.src[self.cursor + length] == '_':
             return False
         self.cursor += length
         return True

target/i386/sev.c

@@ -131,6 +131,17 @@ sev_ram_block_added(RAMBlockNotifier *n, void *host, size_t size)
 {
     int r;
     struct kvm_enc_region range;
+    ram_addr_t offset;
+    MemoryRegion *mr;
+
+    /*
+     * The RAM device presents a memory region that should be treated
+     * as IO region and should not be pinned.
+     */
+    mr = memory_region_from_host(host, &offset);
+    if (mr && memory_region_is_ram_device(mr)) {
+        return;
+    }
 
     range.addr = (__u64)(unsigned long)host;
     range.size = size;

tests/Makefile.include

@@ -195,7 +195,6 @@ check-qtest-i386-$(CONFIG_SLIRP) += tests/test-netfilter$(EXESUF)
 check-qtest-i386-$(CONFIG_POSIX) += tests/test-filter-mirror$(EXESUF)
 check-qtest-i386-$(CONFIG_RTL8139_PCI) += tests/test-filter-redirector$(EXESUF)
 check-qtest-i386-y += tests/migration-test$(EXESUF)
-check-qtest-i386-y += tests/test-announce-self$(EXESUF)
 check-qtest-i386-y += tests/test-x86-cpuid-compat$(EXESUF)
 check-qtest-i386-y += tests/numa-test$(EXESUF)
 check-qtest-x86_64-y += $(check-qtest-i386-y)
@@ -232,7 +231,6 @@ check-qtest-ppc64-y += $(check-qtest-ppc-y)
 check-qtest-ppc64-$(CONFIG_PSERIES) += tests/device-plug-test$(EXESUF)
 check-qtest-ppc64-$(CONFIG_POWERNV) += tests/pnv-xscom-test$(EXESUF)
 check-qtest-ppc64-y += tests/migration-test$(EXESUF)
-check-qtest-ppc64-y += tests/test-announce-self$(EXESUF)
 check-qtest-ppc64-$(CONFIG_PSERIES) += tests/rtas-test$(EXESUF)
 check-qtest-ppc64-$(CONFIG_SLIRP) += tests/pxe-test$(EXESUF)
 check-qtest-ppc64-$(CONFIG_USB_UHCI) += tests/usb-hcd-uhci-test$(EXESUF)
@@ -817,7 +815,6 @@ tests/usb-hcd-ehci-test$(EXESUF): tests/usb-hcd-ehci-test.o $(libqos-usb-obj-y)
 tests/usb-hcd-xhci-test$(EXESUF): tests/usb-hcd-xhci-test.o $(libqos-usb-obj-y)
 tests/cpu-plug-test$(EXESUF): tests/cpu-plug-test.o
 tests/migration-test$(EXESUF): tests/migration-test.o
-tests/test-announce-self$(EXESUF): tests/test-announce-self.o
 tests/qemu-iotests/socket_scm_helper$(EXESUF): tests/qemu-iotests/socket_scm_helper.o
 tests/test-qemu-opts$(EXESUF): tests/test-qemu-opts.o $(test-util-obj-y)
 tests/test-keyval$(EXESUF): tests/test-keyval.o $(test-util-obj-y) $(test-qapi-obj-y)

tests/test-announce-self.c

@@ -1,73 +0,0 @@
-/*
- * QTest testcase for qemu_announce_self
- *
- * Copyright (c) 2017 Red hat, Inc.
- * Copyright (c) 2014 SUSE LINUX Products GmbH
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or later.
- * See the COPYING file in the top-level directory.
- */
-
-#include "qemu/osdep.h"
-#include "libqtest.h"
-#include "qapi/qmp/qdict.h"
-#include "qemu-common.h"
-#include "qemu/sockets.h"
-#include "qemu/iov.h"
-#include "libqos/libqos-pc.h"
-#include "libqos/libqos-spapr.h"
-
-#ifndef ETH_P_RARP
-#define ETH_P_RARP 0x8035
-#endif
-
-
-static void test_announce(QTestState *qs, int socket)
-{
-    char buffer[60];
-    int len;
-    QDict *rsp;
-    int ret;
-    uint16_t *proto = (uint16_t *)&buffer[12];
-
-    rsp = qtest_qmp(qs, "{ 'execute' : 'announce-self', "
-                  " 'arguments': {"
-                      " 'initial': 50, 'max': 550,"
-                      " 'rounds': 10, 'step': 50 } }");
-    assert(!qdict_haskey(rsp, "error"));
-    qobject_unref(rsp);
-
-    /* Catch the packet and make sure it's a RARP */
-    ret = qemu_recv(socket, &len, sizeof(len), 0);
-    g_assert_cmpint(ret, ==,  sizeof(len));
-    len = ntohl(len);
-
-    ret = qemu_recv(socket, buffer, len, 0);
-    g_assert_cmpint(*proto, ==, htons(ETH_P_RARP));
-}
-
-static void setup(gconstpointer data)
-{
-    QTestState *qs;
-    void (*func) (QTestState *qs, int socket) = data;
-    int sv[2], ret;
-
-    ret = socketpair(PF_UNIX, SOCK_STREAM, 0, sv);
-    g_assert_cmpint(ret, !=, -1);
-
-    qs = qtest_initf("-netdev socket,fd=%d,id=hs0 -device "
-                     "virtio-net-pci,netdev=hs0", sv[1]);
-    func(qs, sv[0]);
-
-    /* End test */
-    close(sv[0]);
-    qtest_quit(qs);
-}
-
-int main(int argc, char **argv)
-{
-    g_test_init(&argc, &argv, NULL);
-    qtest_add_data_func("/virtio/net/test_announce_self", test_announce, setup);
-
-    return g_test_run();
-}

tests/virtio-net-test.c

@@ -15,6 +15,10 @@
 #include "libqos/qgraph.h"
 #include "libqos/virtio-net.h"
 
+#ifndef ETH_P_RARP
+#define ETH_P_RARP 0x8035
+#endif
+
 #define PCI_SLOT_HP             0x06
 #define PCI_SLOT                0x04
 
@@ -168,6 +172,31 @@ static void hotplug(void *obj, void *data, QGuestAllocator *t_alloc)
     }
 }
 
+static void announce_self(void *obj, void *data, QGuestAllocator *t_alloc)
+{
+    int *sv = data;
+    char buffer[60];
+    int len;
+    QDict *rsp;
+    int ret;
+    uint16_t *proto = (uint16_t *)&buffer[12];
+
+    rsp = qmp("{ 'execute' : 'announce-self', "
+                  " 'arguments': {"
+                      " 'initial': 50, 'max': 550,"
+                      " 'rounds': 10, 'step': 50 } }");
+    assert(!qdict_haskey(rsp, "error"));
+    qobject_unref(rsp);
+
+    /* Catch the packet and make sure it's a RARP */
+    ret = qemu_recv(sv[0], &len, sizeof(len), 0);
+    g_assert_cmpint(ret, ==,  sizeof(len));
+    len = ntohl(len);
+
+    ret = qemu_recv(sv[0], buffer, len, 0);
+    g_assert_cmpint(*proto, ==, htons(ETH_P_RARP));
+}
+
 static void virtio_net_test_cleanup(void *sockets)
 {
     int *sv = sockets;
@@ -233,6 +262,7 @@ static void register_virtio_net_test(void)
     qos_add_test("basic", "virtio-net", send_recv_test, &opts);
     qos_add_test("rx_stop_cont", "virtio-net", stop_cont_test, &opts);
 #endif
+    qos_add_test("announce-self", "virtio-net", announce_self, &opts);
 
     /* These tests do not need a loopback backend.  */
     opts.before = virtio_net_test_setup_nosocket;