From c712401bc641b66d9bd558884751d8979e2e0e96 Mon Sep 17 00:00:00 2001 From: "H.J. Lu" Date: Thu, 8 Oct 2020 08:38:03 -0700 Subject: [PATCH] : Add Intel HRESET support Add Intel HRESET support to . --- manual/platform.texi | 3 +++ sysdeps/x86/sys/platform/x86.h | 3 +++ sysdeps/x86/tst-get-cpu-features.c | 1 + 3 files changed, 7 insertions(+) diff --git a/manual/platform.texi b/manual/platform.texi index 283f255679..1e44525552 100644 --- a/manual/platform.texi +++ b/manual/platform.texi @@ -346,6 +346,9 @@ extensions. @item @code{HTT} -- Max APIC IDs reserved field is Valid. +@item +@code{HRESET} -- History reset. + @item @code{HYBRID} -- Hybrid processor. diff --git a/sysdeps/x86/sys/platform/x86.h b/sysdeps/x86/sys/platform/x86.h index 276de1eb6b..394f1c41a6 100644 --- a/sysdeps/x86/sys/platform/x86.h +++ b/sysdeps/x86/sys/platform/x86.h @@ -313,6 +313,7 @@ extern const struct cpu_features *__x86_get_cpu_features (unsigned int) /* EAX. */ #define bit_cpu_AVX_VNNI (1u << 4) #define bit_cpu_AVX512_BF16 (1u << 5) +#define bit_cpu_HRESET (1u << 22) /* COMMON_CPUID_INDEX_19. */ @@ -533,6 +534,7 @@ extern const struct cpu_features *__x86_get_cpu_features (unsigned int) /* EAX. */ #define index_cpu_AVX_VNNI COMMON_CPUID_INDEX_7_ECX_1 #define index_cpu_AVX512_BF16 COMMON_CPUID_INDEX_7_ECX_1 +#define index_cpu_HRESET COMMON_CPUID_INDEX_7_ECX_1 /* COMMON_CPUID_INDEX_19. */ @@ -753,6 +755,7 @@ extern const struct cpu_features *__x86_get_cpu_features (unsigned int) /* EAX. */ #define reg_AVX_VNNI eax #define reg_AVX512_BF16 eax +#define reg_HRESET eax /* COMMON_CPUID_INDEX_19. */ diff --git a/sysdeps/x86/tst-get-cpu-features.c b/sysdeps/x86/tst-get-cpu-features.c index e87158d45b..aacaa49045 100644 --- a/sysdeps/x86/tst-get-cpu-features.c +++ b/sysdeps/x86/tst-get-cpu-features.c @@ -223,6 +223,7 @@ do_test (void) CHECK_CPU_FEATURE (WBNOINVD); CHECK_CPU_FEATURE (AVX_VNNI); CHECK_CPU_FEATURE (AVX512_BF16); + CHECK_CPU_FEATURE (HRESET); CHECK_CPU_FEATURE (AESKLE); CHECK_CPU_FEATURE (WIDE_KL);