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kernel: x86: add some more cpuid flags.

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Jérôme Duval
2018-01-15 20:18:43 +01:00
parent 05a859ebd7
commit 483c45843d
2 changed files with 18 additions and 1 deletions
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headers/private/kernel/arch/x86/arch_cpu.h
+7
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@@ -261,11 +261,17 @@
// https://en.wikipedia.org/wiki/CPUID#EAX=7,_ECX=0:_Extended_Features
#define IA32_FEATURE_AVX512_4VNNIW (1 << 2) // AVX-512 4-register Neural Network Instructions
#define IA32_FEATURE_AVX512_4FMAPS (1 << 3) // AVX-512 4-register Multiply Accumulation Single precision
#define IA32_FEATURE_IBRS (1 << 26) // IBRS / IBPB Speculation Control
#define IA32_FEATURE_STIBP (1 << 27) // STIBP Speculation Control
// x86 defined features from cpuid eax 0x80000007, edx register
#define IA32_FEATURE_INVARIANT_TSC (1 << 8)
// x86 defined features from cpuid eax 0x80000008, ebx register
#define IA32_FEATURE_AMD_EXT_IBPB (1 << 12) /* IBPB Support only (no IBRS) */
// cr4 flags
#define IA32_CR4_PAE (1UL << 5)
#define IA32_CR4_GLOBAL_PAGES (1UL << 7)
@@ -355,6 +361,7 @@ enum x86_feature_type {
FEATURE_7_ECX, // cpuid eax=7, ecx registers
FEATURE_7_EDX, // cpuid eax=7, edx registers
FEATURE_EXT_7_EDX, // cpuid eax=0x80000007, edx register
FEATURE_EXT_8_EBX, // cpuid eax=0x80000008, ebx register
FEATURE_NUM
};