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| author | Huaitong Han <huaitong.han@intel.com> | 2015-11-18 10:20:15 +0800 |
|---|---|---|
| committer | Eduardo Habkost <ehabkost@redhat.com> | 2016-01-21 12:47:16 -0200 |
| commit | f74eefe0b98cd7e13825de8e8d9f32e22aed102c (patch) | |
| tree | aa58c207fc0650945406ad62579d4eedd6bbc858 /target-i386/cpu.c | |
| parent | 36f96c4b6bd25f43000c317518ff3df10202bc75 (diff) | |
| download | qemu-f74eefe0b98cd7e13825de8e8d9f32e22aed102c.tar.gz | |
target-i386: Add PKU and and OSPKE support
Add PKU and OSPKE CPUID features, including xsave state and
migration support.
Signed-off-by: Huaitong Han <huaitong.han@intel.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
[ehabkost: squashed 3 patches together, edited patch description]
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Diffstat (limited to 'target-i386/cpu.c')
| -rw-r--r-- | target-i386/cpu.c | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/target-i386/cpu.c b/target-i386/cpu.c index d3f8a4e4ea..f4b420f966 100644 --- a/target-i386/cpu.c +++ b/target-i386/cpu.c @@ -263,6 +263,17 @@ static const char *cpuid_7_0_ebx_feature_name[] = { "clwb", NULL, "avx512pf", "avx512er", "avx512cd", NULL, NULL, NULL, }; +static const char *cpuid_7_0_ecx_feature_name[] = { + NULL, NULL, NULL, "pku", + "ospke", NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, +}; + static const char *cpuid_apm_edx_feature_name[] = { NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, @@ -352,6 +363,7 @@ static const char *cpuid_6_feature_name[] = { CPUID_7_0_EBX_FSGSBASE, CPUID_7_0_EBX_HLE, CPUID_7_0_EBX_AVX2, CPUID_7_0_EBX_ERMS, CPUID_7_0_EBX_INVPCID, CPUID_7_0_EBX_RTM, CPUID_7_0_EBX_RDSEED */ +#define TCG_7_0_ECX_FEATURES 0 #define TCG_APM_FEATURES 0 #define TCG_6_EAX_FEATURES CPUID_6_EAX_ARAT @@ -409,6 +421,13 @@ static FeatureWordInfo feature_word_info[FEATURE_WORDS] = { .cpuid_reg = R_EBX, .tcg_features = TCG_7_0_EBX_FEATURES, }, + [FEAT_7_0_ECX] = { + .feat_names = cpuid_7_0_ecx_feature_name, + .cpuid_eax = 7, + .cpuid_needs_ecx = true, .cpuid_ecx = 0, + .cpuid_reg = R_ECX, + .tcg_features = TCG_7_0_ECX_FEATURES, + }, [FEAT_8000_0007_EDX] = { .feat_names = cpuid_apm_edx_feature_name, .cpuid_eax = 0x80000007, @@ -469,6 +488,8 @@ static const ExtSaveArea ext_save_areas[] = { .offset = 0x480, .size = 0x200 }, [7] = { .feature = FEAT_7_0_EBX, .bits = CPUID_7_0_EBX_AVX512F, .offset = 0x680, .size = 0x400 }, + [9] = { .feature = FEAT_7_0_ECX, .bits = CPUID_7_0_ECX_PKU, + .offset = 0xA80, .size = 0x8 }, }; const char *get_register_name_32(unsigned int reg) @@ -2390,7 +2411,7 @@ void cpu_x86_cpuid(CPUX86State *env, uint32_t index, uint32_t count, if (count == 0) { *eax = 0; /* Maximum ECX value for sub-leaves */ *ebx = env->features[FEAT_7_0_EBX]; /* Feature flags */ - *ecx = 0; /* Reserved */ + *ecx = env->features[FEAT_7_0_ECX]; /* Feature flags */ *edx = 0; /* Reserved */ } else { *eax = 0; |