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xenpvh5 

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Merge tag 'xenpvh5-tag' of https://gitlab.com/sstabellini/qemu into staging

xenpvh5

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# gpg: Signature made Fri 16 Jun 2023 01:48:20 AM CEST
# gpg:                using RSA key D04E33ABA51F67BA07D30AEA894F8F4870E1AE90
# gpg: Good signature from "Stefano Stabellini <sstabellini@kernel.org>" [unknown]
# gpg:                 aka "Stefano Stabellini <stefano.stabellini@eu.citrix.com>" [undefined]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: D04E 33AB A51F 67BA 07D3  0AEA 894F 8F48 70E1 AE90

* tag 'xenpvh5-tag' of https://gitlab.com/sstabellini/qemu:
  test/qtest: add xepvh to skip list for qtest
  meson.build: enable xenpv machine build for ARM
  hw/arm: introduce xenpvh machine
  meson.build: do not set have_xen_pci_passthrough for aarch64 targets
  hw/xen/xen-hvm-common: Use g_new and error_report
  hw/xen/xen-hvm-common: skip ioreq creation on ioreq registration failure
  include/hw/xen/xen_common: return error from xen_create_ioreq_server
  xen-hvm: reorganize xen-hvm and move common function to xen-hvm-common
  hw/i386/xen/xen-hvm: move x86-specific fields out of XenIOState
  hw/i386/xen: rearrange xen_hvm_init_pc
  hw/i386/xen/: move xen-mapcache.c to hw/xen/

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2023-06-16 12:29:48 +02:00
parent 5692a39f32 d8a714eba6
commit 0d7c8da0cc
19 changed files with 1352 additions and 1012 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

34
docs/system/arm/xenpvh.rst Normal file
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@ -0,0 +1,34 @@
XENPVH (``xenpvh``)
=========================================
This machine creates a IOREQ server to register/connect with Xen Hypervisor.
When TPM is enabled, this machine also creates a tpm-tis-device at a user input
tpm base address, adds a TPM emulator and connects to a swtpm application
running on host machine via chardev socket. This enables xenpvh to support TPM
functionalities for a guest domain.
More information about TPM use and installing swtpm linux application can be
found at: docs/specs/tpm.rst.
Example for starting swtpm on host machine:
.. code-block:: console
mkdir /tmp/vtpm2
swtpm socket --tpmstate dir=/tmp/vtpm2 \
--ctrl type=unixio,path=/tmp/vtpm2/swtpm-sock &
Sample QEMU xenpvh commands for running and connecting with Xen:
.. code-block:: console
qemu-system-aarch64 -xen-domid 1 \
-chardev socket,id=libxl-cmd,path=qmp-libxl-1,server=on,wait=off \
-mon chardev=libxl-cmd,mode=control \
-chardev socket,id=libxenstat-cmd,path=qmp-libxenstat-1,server=on,wait=off \
-mon chardev=libxenstat-cmd,mode=control \
-xen-attach -name guest0 -vnc none -display none -nographic \
-machine xenpvh -m 1301 \
-chardev socket,id=chrtpm,path=tmp/vtpm2/swtpm-sock \
-tpmdev emulator,id=tpm0,chardev=chrtpm -machine tpm-base-addr=0x0C000000
In above QEMU command, last two lines are for connecting xenpvh QEMU to swtpm
via chardev socket.

1
docs/system/target-arm.rst
View File

@ -107,6 +107,7 @@ undocumented; you can get a complete list by running
arm/stm32
arm/virt
arm/xlnx-versal-virt
arm/xenpvh
Emulated CPU architecture support
=================================

2
hw/arm/meson.build
View File

@ -63,6 +63,8 @@ arm_ss.add(when: 'CONFIG_FSL_IMX7', if_true: files('fsl-imx7.c', 'mcimx7d-sabre.
arm_ss.add(when: 'CONFIG_ARM_SMMUV3', if_true: files('smmuv3.c'))
arm_ss.add(when: 'CONFIG_FSL_IMX6UL', if_true: files('fsl-imx6ul.c', 'mcimx6ul-evk.c'))
arm_ss.add(when: 'CONFIG_NRF51_SOC', if_true: files('nrf51_soc.c'))
arm_ss.add(when: 'CONFIG_XEN', if_true: files('xen_arm.c'))
arm_ss.add_all(xen_ss)
softmmu_ss.add(when: 'CONFIG_ARM_SMMUV3', if_true: files('smmu-common.c'))
softmmu_ss.add(when: 'CONFIG_EXYNOS4', if_true: files('exynos4_boards.c'))

181
hw/arm/xen_arm.c Normal file
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@ -0,0 +1,181 @@
/*
* QEMU ARM Xen PVH Machine
*
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "qemu/osdep.h"
#include "qemu/error-report.h"
#include "qapi/qapi-commands-migration.h"
#include "qapi/visitor.h"
#include "hw/boards.h"
#include "hw/sysbus.h"
#include "sysemu/block-backend.h"
#include "sysemu/tpm_backend.h"
#include "sysemu/sysemu.h"
#include "hw/xen/xen-hvm-common.h"
#include "sysemu/tpm.h"
#include "hw/xen/arch_hvm.h"
#define TYPE_XEN_ARM MACHINE_TYPE_NAME("xenpvh")
OBJECT_DECLARE_SIMPLE_TYPE(XenArmState, XEN_ARM)
static MemoryListener xen_memory_listener = {
.region_add = xen_region_add,
.region_del = xen_region_del,
.log_start = NULL,
.log_stop = NULL,
.log_sync = NULL,
.log_global_start = NULL,
.log_global_stop = NULL,
.priority = 10,
};
struct XenArmState {
/*< private >*/
MachineState parent;
XenIOState *state;
struct {
uint64_t tpm_base_addr;
} cfg;
};
void arch_handle_ioreq(XenIOState *state, ioreq_t *req)
{
hw_error("Invalid ioreq type 0x%x\n", req->type);
return;
}
void arch_xen_set_memory(XenIOState *state, MemoryRegionSection *section,
bool add)
{
}
void xen_hvm_modified_memory(ram_addr_t start, ram_addr_t length)
{
}
void qmp_xen_set_global_dirty_log(bool enable, Error **errp)
{
}
#ifdef CONFIG_TPM
static void xen_enable_tpm(XenArmState *xam)
{
Error *errp = NULL;
DeviceState *dev;
SysBusDevice *busdev;
TPMBackend *be = qemu_find_tpm_be("tpm0");
if (be == NULL) {
DPRINTF("Couldn't fine the backend for tpm0\n");
return;
}
dev = qdev_new(TYPE_TPM_TIS_SYSBUS);
object_property_set_link(OBJECT(dev), "tpmdev", OBJECT(be), &errp);
object_property_set_str(OBJECT(dev), "tpmdev", be->id, &errp);
busdev = SYS_BUS_DEVICE(dev);
sysbus_realize_and_unref(busdev, &error_fatal);
sysbus_mmio_map(busdev, 0, xam->cfg.tpm_base_addr);
DPRINTF("Connected tpmdev at address 0x%lx\n", xam->cfg.tpm_base_addr);
}
#endif
static void xen_arm_init(MachineState *machine)
{
XenArmState *xam = XEN_ARM(machine);
xam->state = g_new0(XenIOState, 1);
xen_register_ioreq(xam->state, machine->smp.cpus, xen_memory_listener);
#ifdef CONFIG_TPM
if (xam->cfg.tpm_base_addr) {
xen_enable_tpm(xam);
} else {
DPRINTF("tpm-base-addr is not provided. TPM will not be enabled\n");
}
#endif
}
#ifdef CONFIG_TPM
static void xen_arm_get_tpm_base_addr(Object *obj, Visitor *v,
const char *name, void *opaque,
Error **errp)
{
XenArmState *xam = XEN_ARM(obj);
uint64_t value = xam->cfg.tpm_base_addr;
visit_type_uint64(v, name, &value, errp);
}
static void xen_arm_set_tpm_base_addr(Object *obj, Visitor *v,
const char *name, void *opaque,
Error **errp)
{
XenArmState *xam = XEN_ARM(obj);
uint64_t value;
if (!visit_type_uint64(v, name, &value, errp)) {
return;
}
xam->cfg.tpm_base_addr = value;
}
#endif
static void xen_arm_machine_class_init(ObjectClass *oc, void *data)
{
MachineClass *mc = MACHINE_CLASS(oc);
mc->desc = "Xen Para-virtualized PC";
mc->init = xen_arm_init;
mc->max_cpus = 1;
mc->default_machine_opts = "accel=xen";
#ifdef CONFIG_TPM
object_class_property_add(oc, "tpm-base-addr", "uint64_t",
xen_arm_get_tpm_base_addr,
xen_arm_set_tpm_base_addr,
NULL, NULL);
object_class_property_set_description(oc, "tpm-base-addr",
"Set Base address for TPM device.");
machine_class_allow_dynamic_sysbus_dev(mc, TYPE_TPM_TIS_SYSBUS);
#endif
}
static const TypeInfo xen_arm_machine_type = {
.name = TYPE_XEN_ARM,
.parent = TYPE_MACHINE,
.class_init = xen_arm_machine_class_init,
.instance_size = sizeof(XenArmState),
};
static void xen_arm_machine_register_types(void)
{
type_register_static(&xen_arm_machine_type);
}
type_init(xen_arm_machine_register_types)

1
hw/i386/meson.build
View File

@ -33,5 +33,6 @@ subdir('kvm')
subdir('xen')
i386_ss.add_all(xenpv_ss)
i386_ss.add_all(xen_ss)
hw_arch += {'i386': i386_ss}

1
hw/i386/xen/meson.build
View File

@ -1,6 +1,5 @@
i386_ss.add(when: 'CONFIG_XEN', if_true: files(
'xen-hvm.c',
'xen-mapcache.c',
'xen_apic.c',
'xen_pvdevice.c',
))

19
hw/i386/xen/trace-events
View File

@ -7,22 +7,3 @@ xen_platform_log(char *s) "xen platform: %s"
xen_pv_mmio_read(uint64_t addr) "WARNING: read from Xen PV Device MMIO space (address 0x%"PRIx64")"
xen_pv_mmio_write(uint64_t addr) "WARNING: write to Xen PV Device MMIO space (address 0x%"PRIx64")"
# xen-hvm.c
xen_ram_alloc(unsigned long ram_addr, unsigned long size) "requested: 0x%lx, size 0x%lx"
xen_client_set_memory(uint64_t start_addr, unsigned long size, bool log_dirty) "0x%"PRIx64" size 0x%lx, log_dirty %i"
handle_ioreq(void *req, uint32_t type, uint32_t dir, uint32_t df, uint32_t data_is_ptr, uint64_t addr, uint64_t data, uint32_t count, uint32_t size) "I/O=%p type=%d dir=%d df=%d ptr=%d port=0x%"PRIx64" data=0x%"PRIx64" count=%d size=%d"
handle_ioreq_read(void *req, uint32_t type, uint32_t df, uint32_t data_is_ptr, uint64_t addr, uint64_t data, uint32_t count, uint32_t size) "I/O=%p read type=%d df=%d ptr=%d port=0x%"PRIx64" data=0x%"PRIx64" count=%d size=%d"
handle_ioreq_write(void *req, uint32_t type, uint32_t df, uint32_t data_is_ptr, uint64_t addr, uint64_t data, uint32_t count, uint32_t size) "I/O=%p write type=%d df=%d ptr=%d port=0x%"PRIx64" data=0x%"PRIx64" count=%d size=%d"
cpu_ioreq_pio(void *req, uint32_t dir, uint32_t df, uint32_t data_is_ptr, uint64_t addr, uint64_t data, uint32_t count, uint32_t size) "I/O=%p pio dir=%d df=%d ptr=%d port=0x%"PRIx64" data=0x%"PRIx64" count=%d size=%d"
cpu_ioreq_pio_read_reg(void *req, uint64_t data, uint64_t addr, uint32_t size) "I/O=%p pio read reg data=0x%"PRIx64" port=0x%"PRIx64" size=%d"
cpu_ioreq_pio_write_reg(void *req, uint64_t data, uint64_t addr, uint32_t size) "I/O=%p pio write reg data=0x%"PRIx64" port=0x%"PRIx64" size=%d"
cpu_ioreq_move(void *req, uint32_t dir, uint32_t df, uint32_t data_is_ptr, uint64_t addr, uint64_t data, uint32_t count, uint32_t size) "I/O=%p copy dir=%d df=%d ptr=%d port=0x%"PRIx64" data=0x%"PRIx64" count=%d size=%d"
xen_map_resource_ioreq(uint32_t id, void *addr) "id: %u addr: %p"
cpu_ioreq_config_read(void *req, uint32_t sbdf, uint32_t reg, uint32_t size, uint32_t data) "I/O=%p sbdf=0x%x reg=%u size=%u data=0x%x"
cpu_ioreq_config_write(void *req, uint32_t sbdf, uint32_t reg, uint32_t size, uint32_t data) "I/O=%p sbdf=0x%x reg=%u size=%u data=0x%x"
# xen-mapcache.c
xen_map_cache(uint64_t phys_addr) "want 0x%"PRIx64
xen_remap_bucket(uint64_t index) "index 0x%"PRIx64
xen_map_cache_return(void* ptr) "%p"

1081
hw/i386/xen/xen-hvm.c
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File diff suppressed because it is too large Load Diff

7
hw/xen/meson.build
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@ -26,3 +26,10 @@ else
endif
specific_ss.add_all(when: ['CONFIG_XEN', xen], if_true: xen_specific_ss)
xen_ss = ss.source_set()
xen_ss.add(when: 'CONFIG_XEN', if_true: files(
'xen-mapcache.c',
'xen-hvm-common.c',
))

19
hw/xen/trace-events
View File

@ -41,3 +41,22 @@ xs_node_vprintf(char *path, char *value) "%s %s"
xs_node_vscanf(char *path, char *value) "%s %s"
xs_node_watch(char *path) "%s"
xs_node_unwatch(char *path) "%s"
# xen-hvm.c
xen_ram_alloc(unsigned long ram_addr, unsigned long size) "requested: 0x%lx, size 0x%lx"
xen_client_set_memory(uint64_t start_addr, unsigned long size, bool log_dirty) "0x%"PRIx64" size 0x%lx, log_dirty %i"
handle_ioreq(void *req, uint32_t type, uint32_t dir, uint32_t df, uint32_t data_is_ptr, uint64_t addr, uint64_t data, uint32_t count, uint32_t size) "I/O=%p type=%d dir=%d df=%d ptr=%d port=0x%"PRIx64" data=0x%"PRIx64" count=%d size=%d"
handle_ioreq_read(void *req, uint32_t type, uint32_t df, uint32_t data_is_ptr, uint64_t addr, uint64_t data, uint32_t count, uint32_t size) "I/O=%p read type=%d df=%d ptr=%d port=0x%"PRIx64" data=0x%"PRIx64" count=%d size=%d"
handle_ioreq_write(void *req, uint32_t type, uint32_t df, uint32_t data_is_ptr, uint64_t addr, uint64_t data, uint32_t count, uint32_t size) "I/O=%p write type=%d df=%d ptr=%d port=0x%"PRIx64" data=0x%"PRIx64" count=%d size=%d"
cpu_ioreq_pio(void *req, uint32_t dir, uint32_t df, uint32_t data_is_ptr, uint64_t addr, uint64_t data, uint32_t count, uint32_t size) "I/O=%p pio dir=%d df=%d ptr=%d port=0x%"PRIx64" data=0x%"PRIx64" count=%d size=%d"
cpu_ioreq_pio_read_reg(void *req, uint64_t data, uint64_t addr, uint32_t size) "I/O=%p pio read reg data=0x%"PRIx64" port=0x%"PRIx64" size=%d"
cpu_ioreq_pio_write_reg(void *req, uint64_t data, uint64_t addr, uint32_t size) "I/O=%p pio write reg data=0x%"PRIx64" port=0x%"PRIx64" size=%d"
cpu_ioreq_move(void *req, uint32_t dir, uint32_t df, uint32_t data_is_ptr, uint64_t addr, uint64_t data, uint32_t count, uint32_t size) "I/O=%p copy dir=%d df=%d ptr=%d port=0x%"PRIx64" data=0x%"PRIx64" count=%d size=%d"
xen_map_resource_ioreq(uint32_t id, void *addr) "id: %u addr: %p"
cpu_ioreq_config_read(void *req, uint32_t sbdf, uint32_t reg, uint32_t size, uint32_t data) "I/O=%p sbdf=0x%x reg=%u size=%u data=0x%x"
cpu_ioreq_config_write(void *req, uint32_t sbdf, uint32_t reg, uint32_t size, uint32_t data) "I/O=%p sbdf=0x%x reg=%u size=%u data=0x%x"
# xen-mapcache.c
xen_map_cache(uint64_t phys_addr) "want 0x%"PRIx64
xen_remap_bucket(uint64_t index) "index 0x%"PRIx64
xen_map_cache_return(void* ptr) "%p"

879
hw/xen/xen-hvm-common.c Normal file
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@ -0,0 +1,879 @@
#include "qemu/osdep.h"
#include "qemu/units.h"
#include "qapi/error.h"
#include "trace.h"
#include "hw/pci/pci_host.h"
#include "hw/xen/xen-hvm-common.h"
#include "hw/xen/xen-bus.h"
#include "hw/boards.h"
#include "hw/xen/arch_hvm.h"
MemoryRegion ram_memory;
void xen_ram_alloc(ram_addr_t ram_addr, ram_addr_t size, MemoryRegion *mr,
Error **errp)
{
unsigned long nr_pfn;
xen_pfn_t *pfn_list;
int i;
if (runstate_check(RUN_STATE_INMIGRATE)) {
/* RAM already populated in Xen */
fprintf(stderr, "%s: do not alloc "RAM_ADDR_FMT
" bytes of ram at "RAM_ADDR_FMT" when runstate is INMIGRATE\n",
__func__, size, ram_addr);
return;
}
if (mr == &ram_memory) {
return;
}
trace_xen_ram_alloc(ram_addr, size);
nr_pfn = size >> TARGET_PAGE_BITS;
pfn_list = g_new(xen_pfn_t, nr_pfn);
for (i = 0; i < nr_pfn; i++) {
pfn_list[i] = (ram_addr >> TARGET_PAGE_BITS) + i;
}
if (xc_domain_populate_physmap_exact(xen_xc, xen_domid, nr_pfn, 0, 0, pfn_list)) {
error_setg(errp, "xen: failed to populate ram at " RAM_ADDR_FMT,
ram_addr);
}
g_free(pfn_list);
}
static void xen_set_memory(struct MemoryListener *listener,
MemoryRegionSection *section,
bool add)
{
XenIOState *state = container_of(listener, XenIOState, memory_listener);
if (section->mr == &ram_memory) {
return;
} else {
if (add) {
xen_map_memory_section(xen_domid, state->ioservid,
section);
} else {
xen_unmap_memory_section(xen_domid, state->ioservid,
section);
}
}
arch_xen_set_memory(state, section, add);
}
void xen_region_add(MemoryListener *listener,
MemoryRegionSection *section)
{
memory_region_ref(section->mr);
xen_set_memory(listener, section, true);
}
void xen_region_del(MemoryListener *listener,
MemoryRegionSection *section)
{
xen_set_memory(listener, section, false);
memory_region_unref(section->mr);
}
void xen_io_add(MemoryListener *listener,
MemoryRegionSection *section)
{
XenIOState *state = container_of(listener, XenIOState, io_listener);
MemoryRegion *mr = section->mr;
if (mr->ops == &unassigned_io_ops) {
return;
}
memory_region_ref(mr);
xen_map_io_section(xen_domid, state->ioservid, section);
}
void xen_io_del(MemoryListener *listener,
MemoryRegionSection *section)
{
XenIOState *state = container_of(listener, XenIOState, io_listener);
MemoryRegion *mr = section->mr;
if (mr->ops == &unassigned_io_ops) {
return;
}
xen_unmap_io_section(xen_domid, state->ioservid, section);
memory_region_unref(mr);
}
void xen_device_realize(DeviceListener *listener,
DeviceState *dev)
{
XenIOState *state = container_of(listener, XenIOState, device_listener);
if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) {
PCIDevice *pci_dev = PCI_DEVICE(dev);
XenPciDevice *xendev = g_new(XenPciDevice, 1);
xendev->pci_dev = pci_dev;
xendev->sbdf = PCI_BUILD_BDF(pci_dev_bus_num(pci_dev),
pci_dev->devfn);
QLIST_INSERT_HEAD(&state->dev_list, xendev, entry);
xen_map_pcidev(xen_domid, state->ioservid, pci_dev);
}
}
void xen_device_unrealize(DeviceListener *listener,
DeviceState *dev)
{
XenIOState *state = container_of(listener, XenIOState, device_listener);
if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) {
PCIDevice *pci_dev = PCI_DEVICE(dev);
XenPciDevice *xendev, *next;
xen_unmap_pcidev(xen_domid, state->ioservid, pci_dev);
QLIST_FOREACH_SAFE(xendev, &state->dev_list, entry, next) {
if (xendev->pci_dev == pci_dev) {
QLIST_REMOVE(xendev, entry);
g_free(xendev);
break;
}
}
}
}
MemoryListener xen_io_listener = {
.name = "xen-io",
.region_add = xen_io_add,
.region_del = xen_io_del,
.priority = 10,
};
DeviceListener xen_device_listener = {
.realize = xen_device_realize,
.unrealize = xen_device_unrealize,
};
/* get the ioreq packets from share mem */
static ioreq_t *cpu_get_ioreq_from_shared_memory(XenIOState *state, int vcpu)
{
ioreq_t *req = xen_vcpu_ioreq(state->shared_page, vcpu);
if (req->state != STATE_IOREQ_READY) {
DPRINTF("I/O request not ready: "
"%x, ptr: %x, port: %"PRIx64", "
"data: %"PRIx64", count: %u, size: %u\n",
req->state, req->data_is_ptr, req->addr,
req->data, req->count, req->size);
return NULL;
}
xen_rmb(); /* see IOREQ_READY /then/ read contents of ioreq */
req->state = STATE_IOREQ_INPROCESS;
return req;
}
/* use poll to get the port notification */
/* ioreq_vec--out,the */
/* retval--the number of ioreq packet */
static ioreq_t *cpu_get_ioreq(XenIOState *state)
{
MachineState *ms = MACHINE(qdev_get_machine());
unsigned int max_cpus = ms->smp.max_cpus;
int i;
evtchn_port_t port;
port = qemu_xen_evtchn_pending(state->xce_handle);
if (port == state->bufioreq_local_port) {
timer_mod(state->buffered_io_timer,
BUFFER_IO_MAX_DELAY + qemu_clock_get_ms(QEMU_CLOCK_REALTIME));
return NULL;
}
if (port != -1) {
for (i = 0; i < max_cpus; i++) {
if (state->ioreq_local_port[i] == port) {
break;
}
}
if (i == max_cpus) {
hw_error("Fatal error while trying to get io event!\n");
}
/* unmask the wanted port again */
qemu_xen_evtchn_unmask(state->xce_handle, port);
/* get the io packet from shared memory */
state->send_vcpu = i;
return cpu_get_ioreq_from_shared_memory(state, i);
}
/* read error or read nothing */
return NULL;
}
static uint32_t do_inp(uint32_t addr, unsigned long size)
{
switch (size) {
case 1:
return cpu_inb(addr);
case 2:
return cpu_inw(addr);
case 4:
return cpu_inl(addr);
default:
hw_error("inp: bad size: %04x %lx", addr, size);
}
}
static void do_outp(uint32_t addr,
unsigned long size, uint32_t val)
{
switch (size) {
case 1:
return cpu_outb(addr, val);
case 2:
return cpu_outw(addr, val);
case 4:
return cpu_outl(addr, val);
default:
hw_error("outp: bad size: %04x %lx", addr, size);
}
}
/*
* Helper functions which read/write an object from/to physical guest
* memory, as part of the implementation of an ioreq.
*
* Equivalent to
* cpu_physical_memory_rw(addr + (req->df ? -1 : +1) * req->size * i,
* val, req->size, 0/1)
* except without the integer overflow problems.
*/
static void rw_phys_req_item(hwaddr addr,
ioreq_t *req, uint32_t i, void *val, int rw)
{
/* Do everything unsigned so overflow just results in a truncated result
* and accesses to undesired parts of guest memory, which is up
* to the guest */
hwaddr offset = (hwaddr)req->size * i;
if (req->df) {
addr -= offset;
} else {
addr += offset;
}
cpu_physical_memory_rw(addr, val, req->size, rw);
}
static inline void read_phys_req_item(hwaddr addr,
ioreq_t *req, uint32_t i, void *val)
{
rw_phys_req_item(addr, req, i, val, 0);
}
static inline void write_phys_req_item(hwaddr addr,
ioreq_t *req, uint32_t i, void *val)
{
rw_phys_req_item(addr, req, i, val, 1);
}
void cpu_ioreq_pio(ioreq_t *req)
{
uint32_t i;
trace_cpu_ioreq_pio(req, req->dir, req->df, req->data_is_ptr, req->addr,
req->data, req->count, req->size);
if (req->size > sizeof(uint32_t)) {
hw_error("PIO: bad size (%u)", req->size);
}
if (req->dir == IOREQ_READ) {
if (!req->data_is_ptr) {
req->data = do_inp(req->addr, req->size);
trace_cpu_ioreq_pio_read_reg(req, req->data, req->addr,
req->size);
} else {
uint32_t tmp;
for (i = 0; i < req->count; i++) {
tmp = do_inp(req->addr, req->size);
write_phys_req_item(req->data, req, i, &tmp);
}
}
} else if (req->dir == IOREQ_WRITE) {
if (!req->data_is_ptr) {
trace_cpu_ioreq_pio_write_reg(req, req->data, req->addr,
req->size);
do_outp(req->addr, req->size, req->data);
} else {
for (i = 0; i < req->count; i++) {
uint32_t tmp = 0;
read_phys_req_item(req->data, req, i, &tmp);
do_outp(req->addr, req->size, tmp);
}
}
}
}
static void cpu_ioreq_move(ioreq_t *req)
{
uint32_t i;
trace_cpu_ioreq_move(req, req->dir, req->df, req->data_is_ptr, req->addr,
req->data, req->count, req->size);
if (req->size > sizeof(req->data)) {
hw_error("MMIO: bad size (%u)", req->size);
}
if (!req->data_is_ptr) {
if (req->dir == IOREQ_READ) {
for (i = 0; i < req->count; i++) {
read_phys_req_item(req->addr, req, i, &req->data);
}
} else if (req->dir == IOREQ_WRITE) {
for (i = 0; i < req->count; i++) {
write_phys_req_item(req->addr, req, i, &req->data);
}
}
} else {
uint64_t tmp;
if (req->dir == IOREQ_READ) {
for (i = 0; i < req->count; i++) {
read_phys_req_item(req->addr, req, i, &tmp);
write_phys_req_item(req->data, req, i, &tmp);
}
} else if (req->dir == IOREQ_WRITE) {
for (i = 0; i < req->count; i++) {
read_phys_req_item(req->data, req, i, &tmp);
write_phys_req_item(req->addr, req, i, &tmp);
}
}
}
}
static void cpu_ioreq_config(XenIOState *state, ioreq_t *req)
{
uint32_t sbdf = req->addr >> 32;
uint32_t reg = req->addr;
XenPciDevice *xendev;
if (req->size != sizeof(uint8_t) && req->size != sizeof(uint16_t) &&
req->size != sizeof(uint32_t)) {
hw_error("PCI config access: bad size (%u)", req->size);
}
if (req->count != 1) {
hw_error("PCI config access: bad count (%u)", req->count);
}
QLIST_FOREACH(xendev, &state->dev_list, entry) {
if (xendev->sbdf != sbdf) {
continue;
}
if (!req->data_is_ptr) {
if (req->dir == IOREQ_READ) {
req->data = pci_host_config_read_common(
xendev->pci_dev, reg, PCI_CONFIG_SPACE_SIZE,
req->size);
trace_cpu_ioreq_config_read(req, xendev->sbdf, reg,
req->size, req->data);
} else if (req->dir == IOREQ_WRITE) {
trace_cpu_ioreq_config_write(req, xendev->sbdf, reg,
req->size, req->data);
pci_host_config_write_common(
xendev->pci_dev, reg, PCI_CONFIG_SPACE_SIZE,
req->data, req->size);
}
} else {
uint32_t tmp;
if (req->dir == IOREQ_READ) {
tmp = pci_host_config_read_common(
xendev->pci_dev, reg, PCI_CONFIG_SPACE_SIZE,
req->size);
trace_cpu_ioreq_config_read(req, xendev->sbdf, reg,
req->size, tmp);
write_phys_req_item(req->data, req, 0, &tmp);
} else if (req->dir == IOREQ_WRITE) {
read_phys_req_item(req->data, req, 0, &tmp);
trace_cpu_ioreq_config_write(req, xendev->sbdf, reg,
req->size, tmp);
pci_host_config_write_common(
xendev->pci_dev, reg, PCI_CONFIG_SPACE_SIZE,
tmp, req->size);
}
}
}
}
static void handle_ioreq(XenIOState *state, ioreq_t *req)
{
trace_handle_ioreq(req, req->type, req->dir, req->df, req->data_is_ptr,
req->addr, req->data, req->count, req->size);
if (!req->data_is_ptr && (req->dir == IOREQ_WRITE) &&
(req->size < sizeof (target_ulong))) {
req->data &= ((target_ulong) 1 << (8 * req->size)) - 1;
}
if (req->dir == IOREQ_WRITE)
trace_handle_ioreq_write(req, req->type, req->df, req->data_is_ptr,
req->addr, req->data, req->count, req->size);
switch (req->type) {
case IOREQ_TYPE_PIO:
cpu_ioreq_pio(req);
break;
case IOREQ_TYPE_COPY:
cpu_ioreq_move(req);
break;
case IOREQ_TYPE_TIMEOFFSET:
break;
case IOREQ_TYPE_INVALIDATE:
xen_invalidate_map_cache();
break;
case IOREQ_TYPE_PCI_CONFIG:
cpu_ioreq_config(state, req);
break;
default:
arch_handle_ioreq(state, req);
}
if (req->dir == IOREQ_READ) {
trace_handle_ioreq_read(req, req->type, req->df, req->data_is_ptr,
req->addr, req->data, req->count, req->size);
}
}
static bool handle_buffered_iopage(XenIOState *state)
{
buffered_iopage_t *buf_page = state->buffered_io_page;
buf_ioreq_t *buf_req = NULL;
bool handled_ioreq = false;
ioreq_t req;
int qw;
if (!buf_page) {
return 0;
}
memset(&req, 0x00, sizeof(req));
req.state = STATE_IOREQ_READY;
req.count = 1;
req.dir = IOREQ_WRITE;
for (;;) {
uint32_t rdptr = buf_page->read_pointer, wrptr;
xen_rmb();
wrptr = buf_page->write_pointer;
xen_rmb();
if (rdptr != buf_page->read_pointer) {
continue;
}
if (rdptr == wrptr) {
break;
}
buf_req = &buf_page->buf_ioreq[rdptr % IOREQ_BUFFER_SLOT_NUM];
req.size = 1U << buf_req->size;
req.addr = buf_req->addr;
req.data = buf_req->data;
req.type = buf_req->type;
xen_rmb();
qw = (req.size == 8);
if (qw) {
if (rdptr + 1 == wrptr) {
hw_error("Incomplete quad word buffered ioreq");
}
buf_req = &buf_page->buf_ioreq[(rdptr + 1) %
IOREQ_BUFFER_SLOT_NUM];
req.data |= ((uint64_t)buf_req->data) << 32;
xen_rmb();
}
handle_ioreq(state, &req);
/* Only req.data may get updated by handle_ioreq(), albeit even that
* should not happen as such data would never make it to the guest (we
* can only usefully see writes here after all).
*/
assert(req.state == STATE_IOREQ_READY);
assert(req.count == 1);
assert(req.dir == IOREQ_WRITE);
assert(!req.data_is_ptr);
qatomic_add(&buf_page->read_pointer, qw + 1);
handled_ioreq = true;
}
return handled_ioreq;
}
static void handle_buffered_io(void *opaque)
{
XenIOState *state = opaque;
if (handle_buffered_iopage(state)) {
timer_mod(state->buffered_io_timer,
BUFFER_IO_MAX_DELAY + qemu_clock_get_ms(QEMU_CLOCK_REALTIME));
} else {
timer_del(state->buffered_io_timer);
qemu_xen_evtchn_unmask(state->xce_handle, state->bufioreq_local_port);
}
}
static void cpu_handle_ioreq(void *opaque)
{
XenIOState *state = opaque;
ioreq_t *req = cpu_get_ioreq(state);
handle_buffered_iopage(state);
if (req) {
ioreq_t copy = *req;
xen_rmb();
handle_ioreq(state, &copy);
req->data = copy.data;
if (req->state != STATE_IOREQ_INPROCESS) {
fprintf(stderr, "Badness in I/O request ... not in service?!: "
"%x, ptr: %x, port: %"PRIx64", "
"data: %"PRIx64", count: %u, size: %u, type: %u\n",
req->state, req->data_is_ptr, req->addr,
req->data, req->count, req->size, req->type);
destroy_hvm_domain(false);
return;
}
xen_wmb(); /* Update ioreq contents /then/ update state. */
/*
* We do this before we send the response so that the tools
* have the opportunity to pick up on the reset before the
* guest resumes and does a hlt with interrupts disabled which
* causes Xen to powerdown the domain.
*/
if (runstate_is_running()) {
ShutdownCause request;
if (qemu_shutdown_requested_get()) {
destroy_hvm_domain(false);
}
request = qemu_reset_requested_get();
if (request) {
qemu_system_reset(request);
destroy_hvm_domain(true);
}
}
req->state = STATE_IORESP_READY;
qemu_xen_evtchn_notify(state->xce_handle,
state->ioreq_local_port[state->send_vcpu]);
}
}
static void xen_main_loop_prepare(XenIOState *state)
{
int evtchn_fd = -1;
if (state->xce_handle != NULL) {
evtchn_fd = qemu_xen_evtchn_fd(state->xce_handle);
}
state->buffered_io_timer = timer_new_ms(QEMU_CLOCK_REALTIME, handle_buffered_io,
state);
if (evtchn_fd != -1) {
CPUState *cpu_state;
DPRINTF("%s: Init cpu_by_vcpu_id\n", __func__);
CPU_FOREACH(cpu_state) {
DPRINTF("%s: cpu_by_vcpu_id[%d]=%p\n",
__func__, cpu_state->cpu_index, cpu_state);
state->cpu_by_vcpu_id[cpu_state->cpu_index] = cpu_state;
}
qemu_set_fd_handler(evtchn_fd, cpu_handle_ioreq, NULL, state);
}
}
void xen_hvm_change_state_handler(void *opaque, bool running,
RunState rstate)
{
XenIOState *state = opaque;
if (running) {
xen_main_loop_prepare(state);
}
xen_set_ioreq_server_state(xen_domid,
state->ioservid,
(rstate == RUN_STATE_RUNNING));
}
void xen_exit_notifier(Notifier *n, void *data)
{
XenIOState *state = container_of(n, XenIOState, exit);
xen_destroy_ioreq_server(xen_domid, state->ioservid);
if (state->fres != NULL) {
xenforeignmemory_unmap_resource(xen_fmem, state->fres);
}
qemu_xen_evtchn_close(state->xce_handle);
xs_daemon_close(state->xenstore);
}
static int xen_map_ioreq_server(XenIOState *state)
{
void *addr = NULL;
xen_pfn_t ioreq_pfn;
xen_pfn_t bufioreq_pfn;
evtchn_port_t bufioreq_evtchn;
int rc;
/*
* Attempt to map using the resource API and fall back to normal
* foreign mapping if this is not supported.
*/
QEMU_BUILD_BUG_ON(XENMEM_resource_ioreq_server_frame_bufioreq != 0);
QEMU_BUILD_BUG_ON(XENMEM_resource_ioreq_server_frame_ioreq(0) != 1);
state->fres = xenforeignmemory_map_resource(xen_fmem, xen_domid,
XENMEM_resource_ioreq_server,
state->ioservid, 0, 2,
&addr,
PROT_READ | PROT_WRITE, 0);
if (state->fres != NULL) {
trace_xen_map_resource_ioreq(state->ioservid, addr);
state->buffered_io_page = addr;
state->shared_page = addr + XC_PAGE_SIZE;
} else if (errno != EOPNOTSUPP) {
error_report("failed to map ioreq server resources: error %d handle=%p",
errno, xen_xc);
return -1;
}
rc = xen_get_ioreq_server_info(xen_domid, state->ioservid,
(state->shared_page == NULL) ?
&ioreq_pfn : NULL,
(state->buffered_io_page == NULL) ?
&bufioreq_pfn : NULL,
&bufioreq_evtchn);
if (rc < 0) {
error_report("failed to get ioreq server info: error %d handle=%p",
errno, xen_xc);
return rc;
}
if (state->shared_page == NULL) {
DPRINTF("shared page at pfn %lx\n", ioreq_pfn);
state->shared_page = xenforeignmemory_map(xen_fmem, xen_domid,
PROT_READ | PROT_WRITE,
1, &ioreq_pfn, NULL);
if (state->shared_page == NULL) {
error_report("map shared IO page returned error %d handle=%p",
errno, xen_xc);
}
}
if (state->buffered_io_page == NULL) {
DPRINTF("buffered io page at pfn %lx\n", bufioreq_pfn);
state->buffered_io_page = xenforeignmemory_map(xen_fmem, xen_domid,
PROT_READ | PROT_WRITE,
1, &bufioreq_pfn,
NULL);
if (state->buffered_io_page == NULL) {
error_report("map buffered IO page returned error %d", errno);
return -1;
}
}
if (state->shared_page == NULL || state->buffered_io_page == NULL) {
return -1;
}
DPRINTF("buffered io evtchn is %x\n", bufioreq_evtchn);
state->bufioreq_remote_port = bufioreq_evtchn;
return 0;
}
void destroy_hvm_domain(bool reboot)
{
xc_interface *xc_handle;
int sts;
int rc;
unsigned int reason = reboot ? SHUTDOWN_reboot : SHUTDOWN_poweroff;
if (xen_dmod) {
rc = xendevicemodel_shutdown(xen_dmod, xen_domid, reason);
if (!rc) {
return;
}
if (errno != ENOTTY /* old Xen */) {
error_report("xendevicemodel_shutdown failed with error %d", errno);
}
/* well, try the old thing then */
}
xc_handle = xc_interface_open(0, 0, 0);
if (xc_handle == NULL) {
fprintf(stderr, "Cannot acquire xenctrl handle\n");
} else {
sts = xc_domain_shutdown(xc_handle, xen_domid, reason);
if (sts != 0) {
fprintf(stderr, "xc_domain_shutdown failed to issue %s, "
"sts %d, %s\n", reboot ? "reboot" : "poweroff",
sts, strerror(errno));
} else {
fprintf(stderr, "Issued domain %d %s\n", xen_domid,
reboot ? "reboot" : "poweroff");
}
xc_interface_close(xc_handle);
}
}
void xen_shutdown_fatal_error(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
vfprintf(stderr, fmt, ap);
va_end(ap);
fprintf(stderr, "Will destroy the domain.\n");
/* destroy the domain */
qemu_system_shutdown_request(SHUTDOWN_CAUSE_HOST_ERROR);
}
static void xen_do_ioreq_register(XenIOState *state,
unsigned int max_cpus,
MemoryListener xen_memory_listener)
{
int i, rc;
state->exit.notify = xen_exit_notifier;
qemu_add_exit_notifier(&state->exit);
/*
* Register wake-up support in QMP query-current-machine API
*/
qemu_register_wakeup_support();
rc = xen_map_ioreq_server(state);
if (rc < 0) {
goto err;
}
/* Note: cpus is empty at this point in init */
state->cpu_by_vcpu_id = g_new0(CPUState *, max_cpus);
rc = xen_set_ioreq_server_state(xen_domid, state->ioservid, true);
if (rc < 0) {
error_report("failed to enable ioreq server info: error %d handle=%p",
errno, xen_xc);
goto err;
}
state->ioreq_local_port = g_new0(evtchn_port_t, max_cpus);
/* FIXME: how about if we overflow the page here? */
for (i = 0; i < max_cpus; i++) {
rc = qemu_xen_evtchn_bind_interdomain(state->xce_handle, xen_domid,
xen_vcpu_eport(state->shared_page,
i));
if (rc == -1) {
error_report("shared evtchn %d bind error %d", i, errno);
goto err;
}
state->ioreq_local_port[i] = rc;
}
rc = qemu_xen_evtchn_bind_interdomain(state->xce_handle, xen_domid,
state->bufioreq_remote_port);
if (rc == -1) {
error_report("buffered evtchn bind error %d", errno);
goto err;
}
state->bufioreq_local_port = rc;
/* Init RAM management */
#ifdef XEN_COMPAT_PHYSMAP
xen_map_cache_init(xen_phys_offset_to_gaddr, state);
#else
xen_map_cache_init(NULL, state);
#endif
qemu_add_vm_change_state_handler(xen_hvm_change_state_handler, state);
state->memory_listener = xen_memory_listener;
memory_listener_register(&state->memory_listener, &address_space_memory);
state->io_listener = xen_io_listener;
memory_listener_register(&state->io_listener, &address_space_io);
state->device_listener = xen_device_listener;
QLIST_INIT(&state->dev_list);
device_listener_register(&state->device_listener);
return;
err:
error_report("xen hardware virtual machine initialisation failed");
exit(1);
}
void xen_register_ioreq(XenIOState *state, unsigned int max_cpus,
MemoryListener xen_memory_listener)
{
int rc;
setup_xen_backend_ops();
state->xce_handle = qemu_xen_evtchn_open();
if (state->xce_handle == NULL) {
error_report("xen: event channel open failed with error %d", errno);
goto err;
}
state->xenstore = xs_daemon_open();
if (state->xenstore == NULL) {
error_report("xen: xenstore open failed with error %d", errno);
goto err;
}
rc = xen_create_ioreq_server(xen_domid, &state->ioservid);
if (!rc) {
xen_do_ioreq_register(state, max_cpus, xen_memory_listener);
} else {
warn_report("xen: failed to create ioreq server");
}
xen_bus_init();
xen_be_init();
return;
err:
error_report("xen hardware virtual machine backend registration failed");
exit(1);
}

0
hw/i386/xen/xen-mapcache.c → hw/xen/xen-mapcache.c
View File

9
include/hw/arm/xen_arch_hvm.h Normal file
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@ -0,0 +1,9 @@
#ifndef HW_XEN_ARCH_ARM_HVM_H
#define HW_XEN_ARCH_ARM_HVM_H
#include <xen/hvm/ioreq.h>
void arch_handle_ioreq(XenIOState *state, ioreq_t *req);
void arch_xen_set_memory(XenIOState *state,
MemoryRegionSection *section,
bool add);
#endif

11
include/hw/i386/xen_arch_hvm.h Normal file
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@ -0,0 +1,11 @@
#ifndef HW_XEN_ARCH_I386_HVM_H
#define HW_XEN_ARCH_I386_HVM_H
#include <xen/hvm/ioreq.h>
#include "hw/xen/xen-hvm-common.h"
void arch_handle_ioreq(XenIOState *state, ioreq_t *req);
void arch_xen_set_memory(XenIOState *state,
MemoryRegionSection *section,
bool add);
#endif

5
include/hw/xen/arch_hvm.h Normal file
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@ -0,0 +1,5 @@
#if defined(TARGET_I386) || defined(TARGET_X86_64)
#include "hw/i386/xen_arch_hvm.h"
#elif defined(TARGET_ARM) || defined(TARGET_ARM_64)
#include "hw/arm/xen_arch_hvm.h"
#endif

99
include/hw/xen/xen-hvm-common.h Normal file
View File

@ -0,0 +1,99 @@
#ifndef HW_XEN_HVM_COMMON_H
#define HW_XEN_HVM_COMMON_H
#include "qemu/osdep.h"
#include "qemu/units.h"
#include "cpu.h"
#include "hw/pci/pci.h"
#include "hw/hw.h"
#include "hw/xen/xen_native.h"
#include "hw/xen/xen-legacy-backend.h"
#include "sysemu/runstate.h"
#include "sysemu/sysemu.h"
#include "sysemu/xen.h"
#include "sysemu/xen-mapcache.h"
#include "qemu/error-report.h"
#include <xen/hvm/ioreq.h>
extern MemoryRegion ram_memory;
extern MemoryListener xen_io_listener;
extern DeviceListener xen_device_listener;
//#define DEBUG_XEN_HVM
#ifdef DEBUG_XEN_HVM
#define DPRINTF(fmt, ...) \
do { fprintf(stderr, "xen: " fmt, ## __VA_ARGS__); } while (0)
#else
#define DPRINTF(fmt, ...) \
do { } while (0)
#endif
static inline uint32_t xen_vcpu_eport(shared_iopage_t *shared_page, int i)
{
return shared_page->vcpu_ioreq[i].vp_eport;
}
static inline ioreq_t *xen_vcpu_ioreq(shared_iopage_t *shared_page, int vcpu)
{
return &shared_page->vcpu_ioreq[vcpu];
}
#define BUFFER_IO_MAX_DELAY 100
typedef struct XenPhysmap {
hwaddr start_addr;
ram_addr_t size;
const char *name;
hwaddr phys_offset;
QLIST_ENTRY(XenPhysmap) list;
} XenPhysmap;
typedef struct XenPciDevice {
PCIDevice *pci_dev;
uint32_t sbdf;
QLIST_ENTRY(XenPciDevice) entry;
} XenPciDevice;
typedef struct XenIOState {
ioservid_t ioservid;
shared_iopage_t *shared_page;
buffered_iopage_t *buffered_io_page;
xenforeignmemory_resource_handle *fres;
QEMUTimer *buffered_io_timer;
CPUState **cpu_by_vcpu_id;
/* the evtchn port for polling the notification, */
evtchn_port_t *ioreq_local_port;
/* evtchn remote and local ports for buffered io */
evtchn_port_t bufioreq_remote_port;
evtchn_port_t bufioreq_local_port;
/* the evtchn fd for polling */
xenevtchn_handle *xce_handle;
/* which vcpu we are serving */
int send_vcpu;
struct xs_handle *xenstore;
MemoryListener memory_listener;
MemoryListener io_listener;
QLIST_HEAD(, XenPciDevice) dev_list;
DeviceListener device_listener;
Notifier exit;
} XenIOState;
void xen_exit_notifier(Notifier *n, void *data);
void xen_region_add(MemoryListener *listener, MemoryRegionSection *section);
void xen_region_del(MemoryListener *listener, MemoryRegionSection *section);
void xen_io_add(MemoryListener *listener, MemoryRegionSection *section);
void xen_io_del(MemoryListener *listener, MemoryRegionSection *section);
void xen_device_realize(DeviceListener *listener, DeviceState *dev);
void xen_device_unrealize(DeviceListener *listener, DeviceState *dev);
void xen_hvm_change_state_handler(void *opaque, bool running, RunState rstate);
void xen_register_ioreq(XenIOState *state, unsigned int max_cpus,
MemoryListener xen_memory_listener);
void cpu_ioreq_pio(ioreq_t *req);
#endif /* HW_XEN_HVM_COMMON_H */

8
include/hw/xen/xen_native.h
View File

@ -463,8 +463,8 @@ static inline void xen_unmap_pcidev(domid_t dom,
PCI_FUNC(pci_dev->devfn));
}
static inline void xen_create_ioreq_server(domid_t dom,
ioservid_t *ioservid)
static inline int xen_create_ioreq_server(domid_t dom,
ioservid_t *ioservid)
{
int rc = xendevicemodel_create_ioreq_server(xen_dmod, dom,
HVM_IOREQSRV_BUFIOREQ_ATOMIC,
@ -472,12 +472,14 @@ static inline void xen_create_ioreq_server(domid_t dom,
if (rc == 0) {
trace_xen_ioreq_server_create(*ioservid);
return;
return rc;
}
*ioservid = 0;
use_default_ioreq_server = true;
trace_xen_default_ioreq_server();
return rc;
}
static inline void xen_destroy_ioreq_server(domid_t dom,

4
meson.build
View File

@ -136,7 +136,7 @@ endif
if cpu in ['x86', 'x86_64', 'arm', 'aarch64']
# i386 emulator provides xenpv machine type for multiple architectures
accelerator_targets += {
'CONFIG_XEN': ['i386-softmmu', 'x86_64-softmmu'],
'CONFIG_XEN': ['i386-softmmu', 'x86_64-softmmu', 'aarch64-softmmu'],
}
endif
if cpu in ['x86', 'x86_64']
@ -1726,6 +1726,8 @@ have_xen_pci_passthrough = get_option('xen_pci_passthrough') \
error_message: 'Xen PCI passthrough requested but Xen not enabled') \
.require(targetos == 'linux',
error_message: 'Xen PCI passthrough not available on this platform') \
.require(cpu == 'x86' or cpu == 'x86_64',
error_message: 'Xen PCI passthrough not available on this platform') \
.allowed()

3
tests/qtest/libqtest.c
View File

@ -1465,7 +1465,8 @@ void qtest_cb_for_every_machine(void (*cb)(const char *machine),
for (i = 0; machines[i].name != NULL; i++) {
/* Ignore machines that cannot be used for qtests */
if (!strncmp("xenfv", machines[i].name, 5) ||
g_str_equal("xenpv", machines[i].name)) {
g_str_equal("xenpv", machines[i].name) ||
g_str_equal("xenpvh", machines[i].name)) {
continue;
}
if (!skip_old_versioned ||