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Re: [Qemu-devel] [PATCH v2 2/3] WHPX: dynamically load WHP libraries
|
From: |
Paolo Bonzini |
|
Subject: |
Re: [Qemu-devel] [PATCH v2 2/3] WHPX: dynamically load WHP libraries |
|
Date: |
Wed, 16 May 2018 12:13:23 +0200 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.7.0 |
On 15/05/2018 19:35, address@hidden wrote:
> From: Lucian Petrut <address@hidden>
>
> We're currently linking against import libraries of the WHP DLLs.
>
> By dynamically loading the libraries, we ensure that QEMU will work
> on previous Windows versions, where the WHP DLLs will be missing
> (assuming that WHP is not requested).
>
> Also, we're simplifying the build process, as we no longer require
> the import libraries.
>
> Signed-off-by: Alessandro Pilotti <address@hidden>
> Signed-off-by: Justin Terry (VM) <address@hidden>
> Signed-off-by: Lucian Petrut <address@hidden>
Queued, thanks.
Paolo
> ---
> configure | 15 +--
> target/i386/whp-dispatch.h | 56 ++++++++++++
> target/i386/whpx-all.c | 222
> ++++++++++++++++++++++++++++++---------------
> 3 files changed, 206 insertions(+), 87 deletions(-)
> create mode 100644 target/i386/whp-dispatch.h
>
> diff --git a/configure b/configure
> index 59f91ab..fc432cf 100755
> --- a/configure
> +++ b/configure
> @@ -2524,20 +2524,7 @@ fi
> ##########################################
> # Windows Hypervisor Platform accelerator (WHPX) check
> if test "$whpx" != "no" ; then
> - cat > $TMPC << EOF
> -#include <windows.h>
> -#include <WinHvPlatform.h>
> -#include <WinHvEmulation.h>
> -int main(void) {
> - WHV_CAPABILITY whpx_cap;
> - UINT32 writtenSize;
> - WHvGetCapability(WHvCapabilityCodeFeatures, &whpx_cap, sizeof(whpx_cap),
> - &writtenSize);
> - return 0;
> -}
> -EOF
> - if compile_prog "" "-lWinHvPlatform -lWinHvEmulation" ; then
> - libs_softmmu="$libs_softmmu -lWinHvPlatform -lWinHvEmulation"
> + if check_include "WinHvPlatform.h" && check_include "WinHvEmulation.h";
> then
> whpx="yes"
> else
> if test "$whpx" = "yes"; then
> diff --git a/target/i386/whp-dispatch.h b/target/i386/whp-dispatch.h
> new file mode 100644
> index 0000000..d8d3485
> --- /dev/null
> +++ b/target/i386/whp-dispatch.h
> @@ -0,0 +1,56 @@
> +#include "windows.h"
> +#include <stdbool.h>
> +
> +#include <WinHvPlatform.h>
> +#include <WinHvEmulation.h>
> +
> +#ifndef WHP_DISPATCH_H
> +#define WHP_DISPATCH_H
> +
> +
> +#define LIST_WINHVPLATFORM_FUNCTIONS(X) \
> + X(HRESULT, WHvGetCapability, (WHV_CAPABILITY_CODE CapabilityCode, VOID*
> CapabilityBuffer, UINT32 CapabilityBufferSizeInBytes, UINT32*
> WrittenSizeInBytes)) \
> + X(HRESULT, WHvCreatePartition, (WHV_PARTITION_HANDLE* Partition)) \
> + X(HRESULT, WHvSetupPartition, (WHV_PARTITION_HANDLE Partition)) \
> + X(HRESULT, WHvDeletePartition, (WHV_PARTITION_HANDLE Partition)) \
> + X(HRESULT, WHvGetPartitionProperty, (WHV_PARTITION_HANDLE Partition,
> WHV_PARTITION_PROPERTY_CODE PropertyCode, VOID* PropertyBuffer, UINT32
> PropertyBufferSizeInBytes, UINT32* WrittenSizeInBytes)) \
> + X(HRESULT, WHvSetPartitionProperty, (WHV_PARTITION_HANDLE Partition,
> WHV_PARTITION_PROPERTY_CODE PropertyCode, const VOID* PropertyBuffer, UINT32
> PropertyBufferSizeInBytes)) \
> + X(HRESULT, WHvMapGpaRange, (WHV_PARTITION_HANDLE Partition, VOID*
> SourceAddress, WHV_GUEST_PHYSICAL_ADDRESS GuestAddress, UINT64 SizeInBytes,
> WHV_MAP_GPA_RANGE_FLAGS Flags)) \
> + X(HRESULT, WHvUnmapGpaRange, (WHV_PARTITION_HANDLE Partition,
> WHV_GUEST_PHYSICAL_ADDRESS GuestAddress, UINT64 SizeInBytes)) \
> + X(HRESULT, WHvTranslateGva, (WHV_PARTITION_HANDLE Partition, UINT32
> VpIndex, WHV_GUEST_VIRTUAL_ADDRESS Gva, WHV_TRANSLATE_GVA_FLAGS
> TranslateFlags, WHV_TRANSLATE_GVA_RESULT* TranslationResult,
> WHV_GUEST_PHYSICAL_ADDRESS* Gpa)) \
> + X(HRESULT, WHvCreateVirtualProcessor, (WHV_PARTITION_HANDLE Partition,
> UINT32 VpIndex, UINT32 Flags)) \
> + X(HRESULT, WHvDeleteVirtualProcessor, (WHV_PARTITION_HANDLE Partition,
> UINT32 VpIndex)) \
> + X(HRESULT, WHvRunVirtualProcessor, (WHV_PARTITION_HANDLE Partition, UINT32
> VpIndex, VOID* ExitContext, UINT32 ExitContextSizeInBytes)) \
> + X(HRESULT, WHvCancelRunVirtualProcessor, (WHV_PARTITION_HANDLE Partition,
> UINT32 VpIndex, UINT32 Flags)) \
> + X(HRESULT, WHvGetVirtualProcessorRegisters, (WHV_PARTITION_HANDLE
> Partition, UINT32 VpIndex, const WHV_REGISTER_NAME* RegisterNames, UINT32
> RegisterCount, WHV_REGISTER_VALUE* RegisterValues)) \
> + X(HRESULT, WHvSetVirtualProcessorRegisters, (WHV_PARTITION_HANDLE
> Partition, UINT32 VpIndex, const WHV_REGISTER_NAME* RegisterNames, UINT32
> RegisterCount, const WHV_REGISTER_VALUE* RegisterValues)) \
> +
> +
> +#define LIST_WINHVEMULATION_FUNCTIONS(X) \
> + X(HRESULT, WHvEmulatorCreateEmulator, (const WHV_EMULATOR_CALLBACKS*
> Callbacks, WHV_EMULATOR_HANDLE* Emulator)) \
> + X(HRESULT, WHvEmulatorDestroyEmulator, (WHV_EMULATOR_HANDLE Emulator)) \
> + X(HRESULT, WHvEmulatorTryIoEmulation, (WHV_EMULATOR_HANDLE Emulator, VOID*
> Context, const WHV_VP_EXIT_CONTEXT* VpContext, const
> WHV_X64_IO_PORT_ACCESS_CONTEXT* IoInstructionContext, WHV_EMULATOR_STATUS*
> EmulatorReturnStatus)) \
> + X(HRESULT, WHvEmulatorTryMmioEmulation, (WHV_EMULATOR_HANDLE Emulator,
> VOID* Context, const WHV_VP_EXIT_CONTEXT* VpContext, const
> WHV_MEMORY_ACCESS_CONTEXT* MmioInstructionContext, WHV_EMULATOR_STATUS*
> EmulatorReturnStatus)) \
> +
> +
> +#define WHP_DEFINE_TYPE(return_type, function_name, signature) \
> + typedef return_type (WINAPI *function_name ## _t) signature;
> +
> +#define WHP_DECLARE_MEMBER(return_type, function_name, signature) \
> + function_name ## _t function_name;
> +
> +/* Define function typedef */
> +LIST_WINHVPLATFORM_FUNCTIONS(WHP_DEFINE_TYPE)
> +LIST_WINHVEMULATION_FUNCTIONS(WHP_DEFINE_TYPE)
> +
> +struct WHPDispatch {
> + LIST_WINHVPLATFORM_FUNCTIONS(WHP_DECLARE_MEMBER)
> + LIST_WINHVEMULATION_FUNCTIONS(WHP_DECLARE_MEMBER)
> +};
> +
> +extern struct WHPDispatch whp_dispatch;
> +
> +bool init_whp_dispatch(void);
> +
> +
> +#endif /* WHP_DISPATCH_H */
> diff --git a/target/i386/whpx-all.c b/target/i386/whpx-all.c
> index 64ef79a..0a29d56 100644
> --- a/target/i386/whpx-all.c
> +++ b/target/i386/whpx-all.c
> @@ -25,6 +25,7 @@
> #include "qemu/queue.h"
> #include "qapi/error.h"
> #include "migration/blocker.h"
> +#include "whp-dispatch.h"
>
> #include <WinHvPlatform.h>
> #include <WinHvEmulation.h>
> @@ -162,8 +163,11 @@ struct whpx_vcpu {
> };
>
> static bool whpx_allowed;
> +static bool whp_dispatch_initialized;
> +static HMODULE hWinHvPlatform, hWinHvEmulation;
>
> struct whpx_state whpx_global;
> +struct WHPDispatch whp_dispatch;
>
>
> /*
> @@ -357,10 +361,11 @@ static void whpx_set_registers(CPUState *cpu)
>
> assert(idx == RTL_NUMBER_OF(whpx_register_names));
>
> - hr = WHvSetVirtualProcessorRegisters(whpx->partition, cpu->cpu_index,
> - whpx_register_names,
> - RTL_NUMBER_OF(whpx_register_names),
> - &vcxt.values[0]);
> + hr = whp_dispatch.WHvSetVirtualProcessorRegisters(
> + whpx->partition, cpu->cpu_index,
> + whpx_register_names,
> + RTL_NUMBER_OF(whpx_register_names),
> + &vcxt.values[0]);
>
> if (FAILED(hr)) {
> error_report("WHPX: Failed to set virtual processor context,
> hr=%08lx",
> @@ -384,10 +389,11 @@ static void whpx_get_registers(CPUState *cpu)
>
> assert(cpu_is_stopped(cpu) || qemu_cpu_is_self(cpu));
>
> - hr = WHvGetVirtualProcessorRegisters(whpx->partition, cpu->cpu_index,
> - whpx_register_names,
> - RTL_NUMBER_OF(whpx_register_names),
> - &vcxt.values[0]);
> + hr = whp_dispatch.WHvGetVirtualProcessorRegisters(
> + whpx->partition, cpu->cpu_index,
> + whpx_register_names,
> + RTL_NUMBER_OF(whpx_register_names),
> + &vcxt.values[0]);
> if (FAILED(hr)) {
> error_report("WHPX: Failed to get virtual processor context,
> hr=%08lx",
> hr);
> @@ -547,9 +553,10 @@ static HRESULT CALLBACK whpx_emu_getreg_callback(
> struct whpx_state *whpx = &whpx_global;
> CPUState *cpu = (CPUState *)ctx;
>
> - hr = WHvGetVirtualProcessorRegisters(whpx->partition, cpu->cpu_index,
> - RegisterNames, RegisterCount,
> - RegisterValues);
> + hr = whp_dispatch.WHvGetVirtualProcessorRegisters(
> + whpx->partition, cpu->cpu_index,
> + RegisterNames, RegisterCount,
> + RegisterValues);
> if (FAILED(hr)) {
> error_report("WHPX: Failed to get virtual processor registers,"
> " hr=%08lx", hr);
> @@ -568,9 +575,10 @@ static HRESULT CALLBACK whpx_emu_setreg_callback(
> struct whpx_state *whpx = &whpx_global;
> CPUState *cpu = (CPUState *)ctx;
>
> - hr = WHvSetVirtualProcessorRegisters(whpx->partition, cpu->cpu_index,
> - RegisterNames, RegisterCount,
> - RegisterValues);
> + hr = whp_dispatch.WHvSetVirtualProcessorRegisters(
> + whpx->partition, cpu->cpu_index,
> + RegisterNames, RegisterCount,
> + RegisterValues);
> if (FAILED(hr)) {
> error_report("WHPX: Failed to set virtual processor registers,"
> " hr=%08lx", hr);
> @@ -597,8 +605,8 @@ static HRESULT CALLBACK whpx_emu_translate_callback(
> CPUState *cpu = (CPUState *)ctx;
> WHV_TRANSLATE_GVA_RESULT res;
>
> - hr = WHvTranslateGva(whpx->partition, cpu->cpu_index,
> - Gva, TranslateFlags, &res, Gpa);
> + hr = whp_dispatch.WHvTranslateGva(whpx->partition, cpu->cpu_index,
> + Gva, TranslateFlags, &res, Gpa);
> if (FAILED(hr)) {
> error_report("WHPX: Failed to translate GVA, hr=%08lx", hr);
> } else {
> @@ -623,16 +631,18 @@ static int whpx_handle_mmio(CPUState *cpu,
> WHV_MEMORY_ACCESS_CONTEXT *ctx)
> struct whpx_vcpu *vcpu = get_whpx_vcpu(cpu);
> WHV_EMULATOR_STATUS emu_status;
>
> - hr = WHvEmulatorTryMmioEmulation(vcpu->emulator, cpu,
> - &vcpu->exit_ctx.VpContext, ctx,
> - &emu_status);
> + hr = whp_dispatch.WHvEmulatorTryMmioEmulation(
> + vcpu->emulator, cpu,
> + &vcpu->exit_ctx.VpContext, ctx,
> + &emu_status);
> if (FAILED(hr)) {
> error_report("WHPX: Failed to parse MMIO access, hr=%08lx", hr);
> return -1;
> }
>
> if (!emu_status.EmulationSuccessful) {
> - error_report("WHPX: Failed to emulate MMIO access");
> + error_report("WHPX: Failed to emulate MMIO access with"
> + " EmulatorReturnStatus: %u", emu_status.AsUINT32);
> return -1;
> }
>
> @@ -646,16 +656,18 @@ static int whpx_handle_portio(CPUState *cpu,
> struct whpx_vcpu *vcpu = get_whpx_vcpu(cpu);
> WHV_EMULATOR_STATUS emu_status;
>
> - hr = WHvEmulatorTryIoEmulation(vcpu->emulator, cpu,
> - &vcpu->exit_ctx.VpContext, ctx,
> - &emu_status);
> + hr = whp_dispatch.WHvEmulatorTryIoEmulation(
> + vcpu->emulator, cpu,
> + &vcpu->exit_ctx.VpContext, ctx,
> + &emu_status);
> if (FAILED(hr)) {
> error_report("WHPX: Failed to parse PortIO access, hr=%08lx", hr);
> return -1;
> }
>
> if (!emu_status.EmulationSuccessful) {
> - error_report("WHPX: Failed to emulate PortMMIO access");
> + error_report("WHPX: Failed to emulate PortIO access with"
> + " EmulatorReturnStatus: %u", emu_status.AsUINT32);
> return -1;
> }
>
> @@ -770,8 +782,9 @@ static void whpx_vcpu_pre_run(CPUState *cpu)
> qemu_mutex_unlock_iothread();
>
> if (reg_count) {
> - hr = WHvSetVirtualProcessorRegisters(whpx->partition, cpu->cpu_index,
> - reg_names, reg_count,
> reg_values);
> + hr = whp_dispatch.WHvSetVirtualProcessorRegisters(
> + whpx->partition, cpu->cpu_index,
> + reg_names, reg_count, reg_values);
> if (FAILED(hr)) {
> error_report("WHPX: Failed to set interrupt state registers,"
> " hr=%08lx", hr);
> @@ -879,8 +892,9 @@ static int whpx_vcpu_run(CPUState *cpu)
> whpx_vcpu_kick(cpu);
> }
>
> - hr = WHvRunVirtualProcessor(whpx->partition, cpu->cpu_index,
> - &vcpu->exit_ctx, sizeof(vcpu->exit_ctx));
> + hr = whp_dispatch.WHvRunVirtualProcessor(
> + whpx->partition, cpu->cpu_index,
> + &vcpu->exit_ctx, sizeof(vcpu->exit_ctx));
>
> if (FAILED(hr)) {
> error_report("WHPX: Failed to exec a virtual processor,"
> @@ -951,11 +965,11 @@ static int whpx_vcpu_run(CPUState *cpu)
> reg_values[3].Reg64 = rdx;
> reg_values[4].Reg64 = rbx;
>
> - hr = WHvSetVirtualProcessorRegisters(whpx->partition,
> - cpu->cpu_index,
> - reg_names,
> - reg_count,
> - reg_values);
> + hr = whp_dispatch.WHvSetVirtualProcessorRegisters(
> + whpx->partition, cpu->cpu_index,
> + reg_names,
> + reg_count,
> + reg_values);
>
> if (FAILED(hr)) {
> error_report("WHPX: Failed to set CpuidAccess state
> registers,"
> @@ -1067,8 +1081,8 @@ int whpx_init_vcpu(CPUState *cpu)
> (void)migrate_add_blocker(whpx_migration_blocker, &local_error);
> if (local_error) {
> error_report_err(local_error);
> - error_free(whpx_migration_blocker);
> migrate_del_blocker(whpx_migration_blocker);
> + error_free(whpx_migration_blocker);
> return -EINVAL;
> }
> }
> @@ -1080,7 +1094,9 @@ int whpx_init_vcpu(CPUState *cpu)
> return -ENOMEM;
> }
>
> - hr = WHvEmulatorCreateEmulator(&whpx_emu_callbacks, &vcpu->emulator);
> + hr = whp_dispatch.WHvEmulatorCreateEmulator(
> + &whpx_emu_callbacks,
> + &vcpu->emulator);
> if (FAILED(hr)) {
> error_report("WHPX: Failed to setup instruction completion support,"
> " hr=%08lx", hr);
> @@ -1088,11 +1104,12 @@ int whpx_init_vcpu(CPUState *cpu)
> return -EINVAL;
> }
>
> - hr = WHvCreateVirtualProcessor(whpx->partition, cpu->cpu_index, 0);
> + hr = whp_dispatch.WHvCreateVirtualProcessor(
> + whpx->partition, cpu->cpu_index, 0);
> if (FAILED(hr)) {
> error_report("WHPX: Failed to create a virtual processor,"
> " hr=%08lx", hr);
> - WHvEmulatorDestroyEmulator(vcpu->emulator);
> + whp_dispatch.WHvEmulatorDestroyEmulator(vcpu->emulator);
> g_free(vcpu);
> return -EINVAL;
> }
> @@ -1133,8 +1150,8 @@ void whpx_destroy_vcpu(CPUState *cpu)
> struct whpx_state *whpx = &whpx_global;
> struct whpx_vcpu *vcpu = get_whpx_vcpu(cpu);
>
> - WHvDeleteVirtualProcessor(whpx->partition, cpu->cpu_index);
> - WHvEmulatorDestroyEmulator(vcpu->emulator);
> + whp_dispatch.WHvDeleteVirtualProcessor(whpx->partition, cpu->cpu_index);
> + whp_dispatch.WHvEmulatorDestroyEmulator(vcpu->emulator);
> g_free(cpu->hax_vcpu);
> return;
> }
> @@ -1142,7 +1159,8 @@ void whpx_destroy_vcpu(CPUState *cpu)
> void whpx_vcpu_kick(CPUState *cpu)
> {
> struct whpx_state *whpx = &whpx_global;
> - WHvCancelRunVirtualProcessor(whpx->partition, cpu->cpu_index, 0);
> + whp_dispatch.WHvCancelRunVirtualProcessor(
> + whpx->partition, cpu->cpu_index, 0);
> }
>
> /*
> @@ -1168,17 +1186,17 @@ static void whpx_update_mapping(hwaddr start_pa,
> ram_addr_t size,
> */
>
> if (add) {
> - hr = WHvMapGpaRange(whpx->partition,
> - host_va,
> - start_pa,
> - size,
> - (WHvMapGpaRangeFlagRead |
> - WHvMapGpaRangeFlagExecute |
> - (rom ? 0 : WHvMapGpaRangeFlagWrite)));
> + hr = whp_dispatch.WHvMapGpaRange(whpx->partition,
> + host_va,
> + start_pa,
> + size,
> + (WHvMapGpaRangeFlagRead |
> + WHvMapGpaRangeFlagExecute |
> + (rom ? 0 :
> WHvMapGpaRangeFlagWrite)));
> } else {
> - hr = WHvUnmapGpaRange(whpx->partition,
> - start_pa,
> - size);
> + hr = whp_dispatch.WHvUnmapGpaRange(whpx->partition,
> + start_pa,
> + size);
> }
>
> if (FAILED(hr)) {
> @@ -1292,18 +1310,24 @@ static int whpx_accel_init(MachineState *ms)
>
> whpx = &whpx_global;
>
> + if (!init_whp_dispatch()) {
> + ret = -ENOSYS;
> + goto error;
> + }
> +
> memset(whpx, 0, sizeof(struct whpx_state));
> whpx->mem_quota = ms->ram_size;
>
> - hr = WHvGetCapability(WHvCapabilityCodeHypervisorPresent, &whpx_cap,
> - sizeof(whpx_cap), &whpx_cap_size);
> + hr = whp_dispatch.WHvGetCapability(
> + WHvCapabilityCodeHypervisorPresent, &whpx_cap,
> + sizeof(whpx_cap), &whpx_cap_size);
> if (FAILED(hr) || !whpx_cap.HypervisorPresent) {
> error_report("WHPX: No accelerator found, hr=%08lx", hr);
> ret = -ENOSPC;
> goto error;
> }
>
> - hr = WHvCreatePartition(&whpx->partition);
> + hr = whp_dispatch.WHvCreatePartition(&whpx->partition);
> if (FAILED(hr)) {
> error_report("WHPX: Failed to create partition, hr=%08lx", hr);
> ret = -EINVAL;
> @@ -1312,10 +1336,11 @@ static int whpx_accel_init(MachineState *ms)
>
> memset(&prop, 0, sizeof(WHV_PARTITION_PROPERTY));
> prop.ProcessorCount = smp_cpus;
> - hr = WHvSetPartitionProperty(whpx->partition,
> - WHvPartitionPropertyCodeProcessorCount,
> - &prop,
> - sizeof(WHV_PARTITION_PROPERTY));
> + hr = whp_dispatch.WHvSetPartitionProperty(
> + whpx->partition,
> + WHvPartitionPropertyCodeProcessorCount,
> + &prop,
> + sizeof(WHV_PARTITION_PROPERTY));
>
> if (FAILED(hr)) {
> error_report("WHPX: Failed to set partition core count to %d,"
> @@ -1326,10 +1351,11 @@ static int whpx_accel_init(MachineState *ms)
>
> memset(&prop, 0, sizeof(WHV_PARTITION_PROPERTY));
> prop.ExtendedVmExits.X64CpuidExit = 1;
> - hr = WHvSetPartitionProperty(whpx->partition,
> - WHvPartitionPropertyCodeExtendedVmExits,
> - &prop,
> - sizeof(WHV_PARTITION_PROPERTY));
> + hr = whp_dispatch.WHvSetPartitionProperty(
> + whpx->partition,
> + WHvPartitionPropertyCodeExtendedVmExits,
> + &prop,
> + sizeof(WHV_PARTITION_PROPERTY));
>
> if (FAILED(hr)) {
> error_report("WHPX: Failed to enable partition extended X64CpuidExit"
> @@ -1339,11 +1365,11 @@ static int whpx_accel_init(MachineState *ms)
> }
>
> UINT32 cpuidExitList[] = {1};
> - hr = WHvSetPartitionProperty(whpx->partition,
> - WHvPartitionPropertyCodeCpuidExitList,
> - cpuidExitList,
> - RTL_NUMBER_OF(cpuidExitList) *
> sizeof(UINT32));
> -
> + hr = whp_dispatch.WHvSetPartitionProperty(
> + whpx->partition,
> + WHvPartitionPropertyCodeCpuidExitList,
> + cpuidExitList,
> + RTL_NUMBER_OF(cpuidExitList) * sizeof(UINT32));
> if (FAILED(hr)) {
> error_report("WHPX: Failed to set partition CpuidExitList hr=%08lx",
> hr);
> @@ -1360,11 +1386,11 @@ static int whpx_accel_init(MachineState *ms)
> cpuidResultList[0].Ebx = signature[0];
> cpuidResultList[0].Ecx = signature[1];
> cpuidResultList[0].Edx = signature[2];
> - hr = WHvSetPartitionProperty(whpx->partition,
> - WHvPartitionPropertyCodeCpuidResultList,
> - cpuidResultList,
> - RTL_NUMBER_OF(cpuidResultList) *
> - sizeof(WHV_X64_CPUID_RESULT));
> + hr = whp_dispatch.WHvSetPartitionProperty(
> + whpx->partition,
> + WHvPartitionPropertyCodeCpuidResultList,
> + cpuidResultList,
> + RTL_NUMBER_OF(cpuidResultList) * sizeof(WHV_X64_CPUID_RESULT));
> if (FAILED(hr)) {
> error_report("WHPX: Failed to set partition CpuidResultList
> hr=%08lx",
> hr);
> @@ -1372,7 +1398,7 @@ static int whpx_accel_init(MachineState *ms)
> goto error;
> }
>
> - hr = WHvSetupPartition(whpx->partition);
> + hr = whp_dispatch.WHvSetupPartition(whpx->partition);
> if (FAILED(hr)) {
> error_report("WHPX: Failed to setup partition, hr=%08lx", hr);
> ret = -EINVAL;
> @@ -1389,7 +1415,7 @@ static int whpx_accel_init(MachineState *ms)
> error:
>
> if (NULL != whpx->partition) {
> - WHvDeletePartition(whpx->partition);
> + whp_dispatch.WHvDeletePartition(whpx->partition);
> whpx->partition = NULL;
> }
>
> @@ -1421,4 +1447,54 @@ static void whpx_type_init(void)
> type_register_static(&whpx_accel_type);
> }
>
> +bool init_whp_dispatch(void)
> +{
> + const char *lib_name;
> + HMODULE hLib;
> +
> + if (whp_dispatch_initialized) {
> + return true;
> + }
> +
> + #define WHP_LOAD_FIELD(return_type, function_name, signature) \
> + whp_dispatch.function_name = \
> + (function_name ## _t)GetProcAddress(hLib, #function_name); \
> + if (!whp_dispatch.function_name) { \
> + error_report("Could not load function %s from library %s.", \
> + #function_name, lib_name); \
> + goto error; \
> + } \
> +
> + lib_name = "WinHvPlatform.dll";
> + hWinHvPlatform = LoadLibrary(lib_name);
> + if (!hWinHvPlatform) {
> + error_report("Could not load library %s.", lib_name);
> + goto error;
> + }
> + hLib = hWinHvPlatform;
> + LIST_WINHVPLATFORM_FUNCTIONS(WHP_LOAD_FIELD)
> +
> + lib_name = "WinHvEmulation.dll";
> + hWinHvEmulation = LoadLibrary(lib_name);
> + if (!hWinHvEmulation) {
> + error_report("Could not load library %s.", lib_name);
> + goto error;
> + }
> + hLib = hWinHvEmulation;
> + LIST_WINHVEMULATION_FUNCTIONS(WHP_LOAD_FIELD)
> +
> + whp_dispatch_initialized = true;
> + return true;
> +
> + error:
> +
> + if (hWinHvPlatform) {
> + FreeLibrary(hWinHvPlatform);
> + }
> + if (hWinHvEmulation) {
> + FreeLibrary(hWinHvEmulation);
> + }
> + return false;
> +}
> +
> type_init(whpx_type_init);
>