diff options
Diffstat (limited to 'vendor/github.com/klauspost/cpuid/v2/cpuid.go')
| -rw-r--r-- | vendor/github.com/klauspost/cpuid/v2/cpuid.go | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/vendor/github.com/klauspost/cpuid/v2/cpuid.go b/vendor/github.com/klauspost/cpuid/v2/cpuid.go index 89a861d4f..d015c744e 100644 --- a/vendor/github.com/klauspost/cpuid/v2/cpuid.go +++ b/vendor/github.com/klauspost/cpuid/v2/cpuid.go @@ -226,6 +226,7 @@ const ( SYSCALL // System-Call Extension (SCE): SYSCALL and SYSRET instructions. SYSEE // SYSENTER and SYSEXIT instructions TBM // AMD Trailing Bit Manipulation + TDX_GUEST // Intel Trust Domain Extensions Guest TLB_FLUSH_NESTED // AMD: Flushing includes all the nested translations for guest translations TME // Intel Total Memory Encryption. The following MSRs are supported: IA32_TME_CAPABILITY, IA32_TME_ACTIVATE, IA32_TME_EXCLUDE_MASK, and IA32_TME_EXCLUDE_BASE. TOPEXT // TopologyExtensions: topology extensions support. Indicates support for CPUID Fn8000_001D_EAX_x[N:0]-CPUID Fn8000_001E_EDX. @@ -1186,13 +1187,8 @@ func support() flagSet { fs.setIf(edx&(1<<30) != 0, IA32_CORE_CAP) fs.setIf(edx&(1<<31) != 0, SPEC_CTRL_SSBD) - // CPUID.(EAX=7, ECX=1).EDX - fs.setIf(edx&(1<<4) != 0, AVXVNNIINT8) - fs.setIf(edx&(1<<5) != 0, AVXNECONVERT) - fs.setIf(edx&(1<<14) != 0, PREFETCHI) - // CPUID.(EAX=7, ECX=1).EAX - eax1, _, _, _ := cpuidex(7, 1) + eax1, _, _, edx1 := cpuidex(7, 1) fs.setIf(fs.inSet(AVX) && eax1&(1<<4) != 0, AVXVNNI) fs.setIf(eax1&(1<<7) != 0, CMPCCXADD) fs.setIf(eax1&(1<<10) != 0, MOVSB_ZL) @@ -1202,6 +1198,11 @@ func support() flagSet { fs.setIf(eax1&(1<<23) != 0, AVXIFMA) fs.setIf(eax1&(1<<26) != 0, LAM) + // CPUID.(EAX=7, ECX=1).EDX + fs.setIf(edx1&(1<<4) != 0, AVXVNNIINT8) + fs.setIf(edx1&(1<<5) != 0, AVXNECONVERT) + fs.setIf(edx1&(1<<14) != 0, PREFETCHI) + // Only detect AVX-512 features if XGETBV is supported if c&((1<<26)|(1<<27)) == (1<<26)|(1<<27) { // Check for OS support @@ -1393,6 +1394,13 @@ func support() flagSet { fs.setIf((a>>24)&1 == 1, VMSA_REGPROT) } + if mfi >= 0x21 { + // Intel Trusted Domain Extensions Guests have their own cpuid leaf (0x21). + _, ebx, ecx, edx := cpuid(0x21) + identity := string(valAsString(ebx, edx, ecx)) + fs.setIf(identity == "IntelTDX ", TDX_GUEST) + } + return fs } |