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windows: add IsProcessorFeaturePresent and processor feature consts

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For golang/go#76791

Change-Id: I1594c4868262c78d40e1ebd883a01a71236e4981
Reviewed-on: https://go-review.googlesource.com/c/sys/+/740500
Reviewed-by: Quim Muntal <quimmuntal@gmail.com>
Reviewed-by: Carlos Amedee <carlos@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
This commit is contained in:
Alex Brainman
2026-01-29 14:38:14 +11:00
parent d25a7aaff8
commit f11c7bb268
4 changed files with 112 additions and 0 deletions
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1
windows/syscall_windows.go
View File

@@ -900,6 +900,7 @@ const socket_error = uintptr(^uint32(0))
//sys NotifyRouteChange2(family uint16, callback uintptr, callerContext unsafe.Pointer, initialNotification bool, notificationHandle *Handle) (errcode error) = iphlpapi.NotifyRouteChange2
//sys NotifyUnicastIpAddressChange(family uint16, callback uintptr, callerContext unsafe.Pointer, initialNotification bool, notificationHandle *Handle) (errcode error) = iphlpapi.NotifyUnicastIpAddressChange
//sys CancelMibChangeNotify2(notificationHandle Handle) (errcode error) = iphlpapi.CancelMibChangeNotify2
//sys IsProcessorFeaturePresent(ProcessorFeature uint32) (ret bool) = kernel32.IsProcessorFeaturePresent
// For testing: clients can set this flag to force
// creation of IPv6 sockets to return EAFNOSUPPORT.

19
windows/syscall_windows_test.go
View File

@@ -1493,3 +1493,22 @@ func TestRoundtripNTUnicodeString(t *testing.T) {
}
}
}
func TestIsProcessorFeaturePresent(t *testing.T) {
// according to
// https://learn.microsoft.com/en-us/windows/win32/api/processthreadsapi/nf-processthreadsapi-isprocessorfeaturepresent
// if PF_PAE_ENABLED returns nonzero value, then
// ...
// The processor is PAE-enabled. For more information, see Physical Address Extension.
// All x64 processors always return a nonzero value for this feature.
// ...
switch runtime.GOARCH {
case "amd64", "386":
default:
t.Skipf("the test is no supported by %q processor type", runtime.GOARCH)
}
if !windows.IsProcessorFeaturePresent(windows.PF_PAE_ENABLED) {
t.Fatal("IsProcessorFeaturePresent failed, but should succeed")
}
}

85
windows/types_windows.go
View File

@@ -3938,3 +3938,88 @@ const (
MOUSE_EVENT = 0x0002
WINDOW_BUFFER_SIZE_EVENT = 0x0004
)
// The processor features to be tested for IsProcessorFeaturePresent, see
// https://learn.microsoft.com/en-us/windows/win32/api/processthreadsapi/nf-processthreadsapi-isprocessorfeaturepresent
const (
PF_ARM_64BIT_LOADSTORE_ATOMIC = 25
PF_ARM_DIVIDE_INSTRUCTION_AVAILABLE = 24
PF_ARM_EXTERNAL_CACHE_AVAILABLE = 26
PF_ARM_FMAC_INSTRUCTIONS_AVAILABLE = 27
PF_ARM_VFP_32_REGISTERS_AVAILABLE = 18
PF_3DNOW_INSTRUCTIONS_AVAILABLE = 7
PF_CHANNELS_ENABLED = 16
PF_COMPARE_EXCHANGE_DOUBLE = 2
PF_COMPARE_EXCHANGE128 = 14
PF_COMPARE64_EXCHANGE128 = 15
PF_FASTFAIL_AVAILABLE = 23
PF_FLOATING_POINT_EMULATED = 1
PF_FLOATING_POINT_PRECISION_ERRATA = 0
PF_MMX_INSTRUCTIONS_AVAILABLE = 3
PF_NX_ENABLED = 12
PF_PAE_ENABLED = 9
PF_RDTSC_INSTRUCTION_AVAILABLE = 8
PF_RDWRFSGSBASE_AVAILABLE = 22
PF_SECOND_LEVEL_ADDRESS_TRANSLATION = 20
PF_SSE3_INSTRUCTIONS_AVAILABLE = 13
PF_SSSE3_INSTRUCTIONS_AVAILABLE = 36
PF_SSE4_1_INSTRUCTIONS_AVAILABLE = 37
PF_SSE4_2_INSTRUCTIONS_AVAILABLE = 38
PF_AVX_INSTRUCTIONS_AVAILABLE = 39
PF_AVX2_INSTRUCTIONS_AVAILABLE = 40
PF_AVX512F_INSTRUCTIONS_AVAILABLE = 41
PF_VIRT_FIRMWARE_ENABLED = 21
PF_XMMI_INSTRUCTIONS_AVAILABLE = 6
PF_XMMI64_INSTRUCTIONS_AVAILABLE = 10
PF_XSAVE_ENABLED = 17
PF_ARM_V8_INSTRUCTIONS_AVAILABLE = 29
PF_ARM_V8_CRYPTO_INSTRUCTIONS_AVAILABLE = 30
PF_ARM_V8_CRC32_INSTRUCTIONS_AVAILABLE = 31
PF_ARM_V81_ATOMIC_INSTRUCTIONS_AVAILABLE = 34
PF_ARM_V82_DP_INSTRUCTIONS_AVAILABLE = 43
PF_ARM_V83_JSCVT_INSTRUCTIONS_AVAILABLE = 44
PF_ARM_V83_LRCPC_INSTRUCTIONS_AVAILABLE = 45
PF_ARM_SVE_INSTRUCTIONS_AVAILABLE = 46
PF_ARM_SVE2_INSTRUCTIONS_AVAILABLE = 47
PF_ARM_SVE2_1_INSTRUCTIONS_AVAILABLE = 48
PF_ARM_SVE_AES_INSTRUCTIONS_AVAILABLE = 49
PF_ARM_SVE_PMULL128_INSTRUCTIONS_AVAILABLE = 50
PF_ARM_SVE_BITPERM_INSTRUCTIONS_AVAILABLE = 51
PF_ARM_SVE_BF16_INSTRUCTIONS_AVAILABLE = 52
PF_ARM_SVE_EBF16_INSTRUCTIONS_AVAILABLE = 53
PF_ARM_SVE_B16B16_INSTRUCTIONS_AVAILABLE = 54
PF_ARM_SVE_SHA3_INSTRUCTIONS_AVAILABLE = 55
PF_ARM_SVE_SM4_INSTRUCTIONS_AVAILABLE = 56
PF_ARM_SVE_I8MM_INSTRUCTIONS_AVAILABLE = 57
PF_ARM_SVE_F32MM_INSTRUCTIONS_AVAILABLE = 58
PF_ARM_SVE_F64MM_INSTRUCTIONS_AVAILABLE = 59
PF_BMI2_INSTRUCTIONS_AVAILABLE = 60
PF_MOVDIR64B_INSTRUCTION_AVAILABLE = 61
PF_ARM_LSE2_AVAILABLE = 62
PF_ARM_SHA3_INSTRUCTIONS_AVAILABLE = 64
PF_ARM_SHA512_INSTRUCTIONS_AVAILABLE = 65
PF_ARM_V82_I8MM_INSTRUCTIONS_AVAILABLE = 66
PF_ARM_V82_FP16_INSTRUCTIONS_AVAILABLE = 67
PF_ARM_V86_BF16_INSTRUCTIONS_AVAILABLE = 68
PF_ARM_V86_EBF16_INSTRUCTIONS_AVAILABLE = 69
PF_ARM_SME_INSTRUCTIONS_AVAILABLE = 70
PF_ARM_SME2_INSTRUCTIONS_AVAILABLE = 71
PF_ARM_SME2_1_INSTRUCTIONS_AVAILABLE = 72
PF_ARM_SME2_2_INSTRUCTIONS_AVAILABLE = 73
PF_ARM_SME_AES_INSTRUCTIONS_AVAILABLE = 74
PF_ARM_SME_SBITPERM_INSTRUCTIONS_AVAILABLE = 75
PF_ARM_SME_SF8MM4_INSTRUCTIONS_AVAILABLE = 76
PF_ARM_SME_SF8MM8_INSTRUCTIONS_AVAILABLE = 77
PF_ARM_SME_SF8DP2_INSTRUCTIONS_AVAILABLE = 78
PF_ARM_SME_SF8DP4_INSTRUCTIONS_AVAILABLE = 79
PF_ARM_SME_SF8FMA_INSTRUCTIONS_AVAILABLE = 80
PF_ARM_SME_F8F32_INSTRUCTIONS_AVAILABLE = 81
PF_ARM_SME_F8F16_INSTRUCTIONS_AVAILABLE = 82
PF_ARM_SME_F16F16_INSTRUCTIONS_AVAILABLE = 83
PF_ARM_SME_B16B16_INSTRUCTIONS_AVAILABLE = 84
PF_ARM_SME_F64F64_INSTRUCTIONS_AVAILABLE = 85
PF_ARM_SME_I16I64_INSTRUCTIONS_AVAILABLE = 86
PF_ARM_SME_LUTv2_INSTRUCTIONS_AVAILABLE = 87
PF_ARM_SME_FA64_INSTRUCTIONS_AVAILABLE = 88
PF_UMONITOR_INSTRUCTION_AVAILABLE = 89
)

7
windows/zsyscall_windows.go
View File

@@ -320,6 +320,7 @@ var (
procGetVolumePathNamesForVolumeNameW = modkernel32.NewProc("GetVolumePathNamesForVolumeNameW")
procGetWindowsDirectoryW = modkernel32.NewProc("GetWindowsDirectoryW")
procInitializeProcThreadAttributeList = modkernel32.NewProc("InitializeProcThreadAttributeList")
procIsProcessorFeaturePresent = modkernel32.NewProc("IsProcessorFeaturePresent")
procIsWow64Process = modkernel32.NewProc("IsWow64Process")
procIsWow64Process2 = modkernel32.NewProc("IsWow64Process2")
procLoadLibraryExW = modkernel32.NewProc("LoadLibraryExW")
@@ -2786,6 +2787,12 @@ func initializeProcThreadAttributeList(attrlist *ProcThreadAttributeList, attrco
return
}
func IsProcessorFeaturePresent(ProcessorFeature uint32) (ret bool) {
r0, _, _ := syscall.SyscallN(procIsProcessorFeaturePresent.Addr(), uintptr(ProcessorFeature))
ret = r0 != 0
return
}
func IsWow64Process(handle Handle, isWow64 *bool) (err error) {
var _p0 uint32
if *isWow64 {