windows: add IsProcessorFeaturePresent and processor feature consts
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>
diff --git a/windows/syscall_windows.go b/windows/syscall_windows.go
index 69439df..738a9f2 100644
--- a/windows/syscall_windows.go
+++ b/windows/syscall_windows.go
@@ -900,6 +900,7 @@
//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.
diff --git a/windows/syscall_windows_test.go b/windows/syscall_windows_test.go
index f81fea0..7611538 100644
--- a/windows/syscall_windows_test.go
+++ b/windows/syscall_windows_test.go
@@ -1493,3 +1493,22 @@
}
}
}
+
+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")
+ }
+}
diff --git a/windows/types_windows.go b/windows/types_windows.go
index 6e4f50e..d5658a1 100644
--- a/windows/types_windows.go
+++ b/windows/types_windows.go
@@ -3938,3 +3938,88 @@
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
+)
diff --git a/windows/zsyscall_windows.go b/windows/zsyscall_windows.go
index f25b730..fe7a4ea 100644
--- a/windows/zsyscall_windows.go
+++ b/windows/zsyscall_windows.go
@@ -320,6 +320,7 @@
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 @@
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 {
