diff options
Diffstat (limited to 'target')
| -rw-r--r-- | target/i386/whpx/whpx-all.c | 87 | ||||
| -rw-r--r-- | target/i386/whpx/whpx-internal.h | 3 |
2 files changed, 90 insertions, 0 deletions
diff --git a/target/i386/whpx/whpx-all.c b/target/i386/whpx/whpx-all.c index b625ad5..23ae639 100644 --- a/target/i386/whpx/whpx-all.c +++ b/target/i386/whpx/whpx-all.c @@ -246,9 +246,15 @@ static bool whpx_allowed; static bool whp_dispatch_initialized; static HMODULE hWinHvPlatform, hWinHvEmulation; static uint32_t max_vcpu_index; +static WHV_PROCESSOR_XSAVE_FEATURES whpx_xsave_cap; + struct whpx_state whpx_global; struct WHPDispatch whp_dispatch; +static bool whpx_has_xsave(void) +{ + return whpx_xsave_cap.XsaveSupport; +} /* * VP support @@ -300,6 +306,28 @@ static SegmentCache whpx_seg_h2q(const WHV_X64_SEGMENT_REGISTER *hs) return qs; } +/* X64 Extended Control Registers */ +static void whpx_set_xcrs(CPUState *cpu) +{ + CPUX86State *env = cpu->env_ptr; + HRESULT hr; + struct whpx_state *whpx = &whpx_global; + WHV_REGISTER_VALUE xcr0; + WHV_REGISTER_NAME xcr0_name = WHvX64RegisterXCr0; + + if (!whpx_has_xsave()) { + return; + } + + /* Only xcr0 is supported by the hypervisor currently */ + xcr0.Reg64 = env->xcr0; + hr = whp_dispatch.WHvSetVirtualProcessorRegisters( + whpx->partition, cpu->cpu_index, &xcr0_name, 1, &xcr0); + if (FAILED(hr)) { + error_report("WHPX: Failed to set register xcr0, hr=%08lx", hr); + } +} + static int whpx_set_tsc(CPUState *cpu) { CPUX86State *env = cpu->env_ptr; @@ -435,6 +463,12 @@ static void whpx_set_registers(CPUState *cpu, int level) /* 8 Debug Registers - Skipped */ + /* + * Extended control registers needs to be handled separately depending + * on whether xsave is supported/enabled or not. + */ + whpx_set_xcrs(cpu); + /* 16 XMM registers */ assert(whpx_register_names[idx] == WHvX64RegisterXmm0); idx_next = idx + 16; @@ -541,6 +575,30 @@ static int whpx_get_tsc(CPUState *cpu) return 0; } +/* X64 Extended Control Registers */ +static void whpx_get_xcrs(CPUState *cpu) +{ + CPUX86State *env = cpu->env_ptr; + HRESULT hr; + struct whpx_state *whpx = &whpx_global; + WHV_REGISTER_VALUE xcr0; + WHV_REGISTER_NAME xcr0_name = WHvX64RegisterXCr0; + + if (!whpx_has_xsave()) { + return; + } + + /* Only xcr0 is supported by the hypervisor currently */ + hr = whp_dispatch.WHvGetVirtualProcessorRegisters( + whpx->partition, cpu->cpu_index, &xcr0_name, 1, &xcr0); + if (FAILED(hr)) { + error_report("WHPX: Failed to get register xcr0, hr=%08lx", hr); + return; + } + + env->xcr0 = xcr0.Reg64; +} + static void whpx_get_registers(CPUState *cpu) { struct whpx_state *whpx = &whpx_global; @@ -634,6 +692,12 @@ static void whpx_get_registers(CPUState *cpu) /* 8 Debug Registers - Skipped */ + /* + * Extended control registers needs to be handled separately depending + * on whether xsave is supported/enabled or not. + */ + whpx_get_xcrs(cpu); + /* 16 XMM registers */ assert(whpx_register_names[idx] == WHvX64RegisterXmm0); idx_next = idx + 16; @@ -2513,6 +2577,29 @@ static int whpx_accel_init(MachineState *ms) goto error; } + /* + * Query the XSAVE capability of the partition. Any error here is not + * considered fatal. + */ + hr = whp_dispatch.WHvGetPartitionProperty( + whpx->partition, + WHvPartitionPropertyCodeProcessorXsaveFeatures, + &whpx_xsave_cap, + sizeof(whpx_xsave_cap), + &whpx_cap_size); + + /* + * Windows version which don't support this property will return with the + * specific error code. + */ + if (FAILED(hr) && hr != WHV_E_UNKNOWN_PROPERTY) { + error_report("WHPX: Failed to query XSAVE capability, hr=%08lx", hr); + } + + if (!whpx_has_xsave()) { + printf("WHPX: Partition is not XSAVE capable\n"); + } + memset(&prop, 0, sizeof(WHV_PARTITION_PROPERTY)); prop.ProcessorCount = ms->smp.cpus; hr = whp_dispatch.WHvSetPartitionProperty( diff --git a/target/i386/whpx/whpx-internal.h b/target/i386/whpx/whpx-internal.h index 2416ec7..dbb7e7b 100644 --- a/target/i386/whpx/whpx-internal.h +++ b/target/i386/whpx/whpx-internal.h @@ -48,6 +48,9 @@ void whpx_apic_get(DeviceState *s); #define WHV_E_UNKNOWN_CAPABILITY 0x80370300L +/* This should eventually come from the Windows SDK */ +#define WHV_E_UNKNOWN_PROPERTY 0x80370302 + #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)) \ |