target/i386: Add CPU model versions supporting 'xsaves'
Hyper-V 2016 refuses to boot on Skylake+ CPU models because they lack 'xsaves'/'vmx-xsaves' features and this diverges from real hardware. The same issue emerges with AMD "EPYC" CPU model prior to version 3 which got 'xsaves' added. EPYC-Rome/EPYC-Milan CPU models have 'xsaves' enabled from the very beginning so the comment blaming KVM to explain why other CPUs lack 'xsaves' is likely outdated. Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Message-Id: <20210412073952.860944-1-vkuznets@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
This commit is contained in:
Vitaly Kuznetsov
Eduardo Habkost
parent
52848929b7
commit
7bde6b1857
@ -2802,12 +2802,7 @@ static X86CPUDefinition builtin_x86_defs[] = {
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CPUID_7_0_EBX_BMI2 | CPUID_7_0_EBX_ERMS | CPUID_7_0_EBX_INVPCID |
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CPUID_7_0_EBX_RTM | CPUID_7_0_EBX_RDSEED | CPUID_7_0_EBX_ADX |
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CPUID_7_0_EBX_SMAP,
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/* Missing: XSAVES (not supported by some Linux versions,
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* including v4.1 to v4.12).
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* KVM doesn't yet expose any XSAVES state save component,
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* and the only one defined in Skylake (processor tracing)
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* probably will block migration anyway.
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*/
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/* XSAVES is added in version 4 */
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.features[FEAT_XSAVE] =
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CPUID_XSAVE_XSAVEOPT | CPUID_XSAVE_XSAVEC |
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CPUID_XSAVE_XGETBV1,
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@ -2883,6 +2878,15 @@ static X86CPUDefinition builtin_x86_defs[] = {
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{ /* end of list */ }
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}
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},
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{
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.version = 4,
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.note = "IBRS, XSAVES, no TSX",
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.props = (PropValue[]) {
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{ "xsaves", "on" },
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{ "vmx-xsaves", "on" },
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{ /* end of list */ }
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}
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},
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{ /* end of list */ }
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}
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},
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@ -2922,12 +2926,7 @@ static X86CPUDefinition builtin_x86_defs[] = {
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CPUID_7_0_EBX_AVX512VL | CPUID_7_0_EBX_CLFLUSHOPT,
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.features[FEAT_7_0_ECX] =
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CPUID_7_0_ECX_PKU,
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/* Missing: XSAVES (not supported by some Linux versions,
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* including v4.1 to v4.12).
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* KVM doesn't yet expose any XSAVES state save component,
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* and the only one defined in Skylake (processor tracing)
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* probably will block migration anyway.
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*/
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/* XSAVES is added in version 5 */
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.features[FEAT_XSAVE] =
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CPUID_XSAVE_XSAVEOPT | CPUID_XSAVE_XSAVEC |
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CPUID_XSAVE_XGETBV1,
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@ -3015,6 +3014,15 @@ static X86CPUDefinition builtin_x86_defs[] = {
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{ /* end of list */ }
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}
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},
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{
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.version = 5,
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.note = "IBRS, XSAVES, EPT switching, no TSX",
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.props = (PropValue[]) {
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{ "xsaves", "on" },
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{ "vmx-xsaves", "on" },
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{ /* end of list */ }
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}
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},
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{ /* end of list */ }
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}
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},
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@ -3057,12 +3065,7 @@ static X86CPUDefinition builtin_x86_defs[] = {
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CPUID_7_0_ECX_AVX512VNNI,
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.features[FEAT_7_0_EDX] =
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CPUID_7_0_EDX_SPEC_CTRL | CPUID_7_0_EDX_SPEC_CTRL_SSBD,
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/* Missing: XSAVES (not supported by some Linux versions,
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* including v4.1 to v4.12).
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* KVM doesn't yet expose any XSAVES state save component,
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* and the only one defined in Skylake (processor tracing)
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* probably will block migration anyway.
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*/
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/* XSAVES is added in version 5 */
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.features[FEAT_XSAVE] =
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CPUID_XSAVE_XSAVEOPT | CPUID_XSAVE_XSAVEC |
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CPUID_XSAVE_XGETBV1,
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@ -3146,6 +3149,14 @@ static X86CPUDefinition builtin_x86_defs[] = {
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{ /* end of list */ }
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},
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},
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{ .version = 5,
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.note = "ARCH_CAPABILITIES, EPT switching, XSAVES, no TSX",
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.props = (PropValue[]) {
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{ "xsaves", "on" },
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{ "vmx-xsaves", "on" },
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{ /* end of list */ }
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},
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},
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{ /* end of list */ }
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}
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},
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@ -3195,13 +3206,7 @@ static X86CPUDefinition builtin_x86_defs[] = {
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MSR_ARCH_CAP_PSCHANGE_MC_NO | MSR_ARCH_CAP_TAA_NO,
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.features[FEAT_7_1_EAX] =
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CPUID_7_1_EAX_AVX_VNNI | CPUID_7_1_EAX_AVX512_BF16,
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/*
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* Missing: XSAVES (not supported by some Linux versions,
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* including v4.1 to v4.12).
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* KVM doesn't yet expose any XSAVES state save component,
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* and the only one defined in Skylake (processor tracing)
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* probably will block migration anyway.
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*/
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/* XSAVES is added in version 2 */
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.features[FEAT_XSAVE] =
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CPUID_XSAVE_XSAVEOPT | CPUID_XSAVE_XSAVEC |
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CPUID_XSAVE_XGETBV1,
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@ -3257,6 +3262,18 @@ static X86CPUDefinition builtin_x86_defs[] = {
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.features[FEAT_VMX_VMFUNC] = MSR_VMX_VMFUNC_EPT_SWITCHING,
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.xlevel = 0x80000008,
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.model_id = "Intel Xeon Processor (Cooperlake)",
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.versions = (X86CPUVersionDefinition[]) {
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{ .version = 1 },
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{ .version = 2,
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.note = "XSAVES",
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.props = (PropValue[]) {
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{ "xsaves", "on" },
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{ "vmx-xsaves", "on" },
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{ /* end of list */ }
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},
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},
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{ /* end of list */ }
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}
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},
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{
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.name = "Icelake-Client",
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@ -3299,12 +3316,7 @@ static X86CPUDefinition builtin_x86_defs[] = {
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CPUID_7_0_ECX_AVX512_VPOPCNTDQ,
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.features[FEAT_7_0_EDX] =
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CPUID_7_0_EDX_SPEC_CTRL | CPUID_7_0_EDX_SPEC_CTRL_SSBD,
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/* Missing: XSAVES (not supported by some Linux versions,
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* including v4.1 to v4.12).
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* KVM doesn't yet expose any XSAVES state save component,
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* and the only one defined in Skylake (processor tracing)
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* probably will block migration anyway.
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*/
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/* XSAVES is added in version 3 */
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.features[FEAT_XSAVE] =
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CPUID_XSAVE_XSAVEOPT | CPUID_XSAVE_XSAVEC |
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CPUID_XSAVE_XGETBV1,
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@ -3372,6 +3384,15 @@ static X86CPUDefinition builtin_x86_defs[] = {
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{ /* end of list */ }
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},
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},
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{
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.version = 3,
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.note = "no TSX, XSAVES, deprecated",
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.props = (PropValue[]) {
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{ "xsaves", "on" },
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{ "vmx-xsaves", "on" },
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{ /* end of list */ }
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},
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},
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{ /* end of list */ }
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},
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.deprecation_note = "use Icelake-Server instead"
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@ -3420,12 +3441,7 @@ static X86CPUDefinition builtin_x86_defs[] = {
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CPUID_7_0_ECX_AVX512_VPOPCNTDQ | CPUID_7_0_ECX_LA57,
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.features[FEAT_7_0_EDX] =
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CPUID_7_0_EDX_SPEC_CTRL | CPUID_7_0_EDX_SPEC_CTRL_SSBD,
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/* Missing: XSAVES (not supported by some Linux versions,
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* including v4.1 to v4.12).
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* KVM doesn't yet expose any XSAVES state save component,
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* and the only one defined in Skylake (processor tracing)
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* probably will block migration anyway.
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*/
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/* XSAVES is added in version 5 */
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.features[FEAT_XSAVE] =
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CPUID_XSAVE_XSAVEOPT | CPUID_XSAVE_XSAVEC |
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CPUID_XSAVE_XGETBV1,
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@ -3518,6 +3534,15 @@ static X86CPUDefinition builtin_x86_defs[] = {
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{ /* end of list */ }
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},
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},
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{
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.version = 5,
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.note = "XSAVES",
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.props = (PropValue[]) {
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{ "xsaves", "on" },
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{ "vmx-xsaves", "on" },
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{ /* end of list */ }
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},
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},
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{ /* end of list */ }
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}
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},
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@ -3552,13 +3577,7 @@ static X86CPUDefinition builtin_x86_defs[] = {
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.features[FEAT_7_0_EDX] =
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CPUID_7_0_EDX_SPEC_CTRL | CPUID_7_0_EDX_ARCH_CAPABILITIES |
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CPUID_7_0_EDX_SPEC_CTRL_SSBD,
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/*
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* Missing: XSAVES (not supported by some Linux versions,
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* including v4.1 to v4.12).
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* KVM doesn't yet expose any XSAVES state save component,
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* and the only one defined in Skylake (processor tracing)
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* probably will block migration anyway.
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*/
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/* XSAVES is added in version 3 */
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.features[FEAT_XSAVE] =
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CPUID_XSAVE_XSAVEOPT | CPUID_XSAVE_XSAVEC | CPUID_XSAVE_XGETBV1,
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.features[FEAT_6_EAX] =
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@ -3625,6 +3644,15 @@ static X86CPUDefinition builtin_x86_defs[] = {
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{ /* end of list */ },
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},
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},
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{
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.version = 3,
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.note = "XSAVES, no MPX, no MONITOR",
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.props = (PropValue[]) {
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{ "xsaves", "on" },
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{ "vmx-xsaves", "on" },
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{ /* end of list */ },
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},
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},
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{ /* end of list */ },
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},
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},
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@ -3683,13 +3711,7 @@ static X86CPUDefinition builtin_x86_defs[] = {
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CPUID_7_0_EDX_CORE_CAPABILITY,
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.features[FEAT_CORE_CAPABILITY] =
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MSR_CORE_CAP_SPLIT_LOCK_DETECT,
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/*
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* Missing: XSAVES (not supported by some Linux versions,
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* including v4.1 to v4.12).
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* KVM doesn't yet expose any XSAVES state save component,
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* and the only one defined in Skylake (processor tracing)
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* probably will block migration anyway.
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*/
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/* XSAVES is is added in version 3 */
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.features[FEAT_XSAVE] =
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CPUID_XSAVE_XSAVEOPT | CPUID_XSAVE_XSAVEC |
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CPUID_XSAVE_XGETBV1,
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@ -3754,6 +3776,15 @@ static X86CPUDefinition builtin_x86_defs[] = {
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{ /* end of list */ },
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},
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},
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{
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.version = 3,
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.note = "XSAVES, no MPX",
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.props = (PropValue[]) {
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{ "xsaves", "on" },
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{ "vmx-xsaves", "on" },
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{ /* end of list */ },
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},
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},
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{ /* end of list */ },
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},
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},
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@ -4035,11 +4066,7 @@ static X86CPUDefinition builtin_x86_defs[] = {
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CPUID_7_0_EBX_FSGSBASE | CPUID_7_0_EBX_BMI1 | CPUID_7_0_EBX_AVX2 |
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CPUID_7_0_EBX_SMEP | CPUID_7_0_EBX_BMI2 | CPUID_7_0_EBX_RDSEED |
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CPUID_7_0_EBX_ADX | CPUID_7_0_EBX_SMAP | CPUID_7_0_EBX_CLFLUSHOPT,
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/*
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* Missing: XSAVES (not supported by some Linux versions,
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* including v4.1 to v4.12).
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* KVM doesn't yet expose any XSAVES state save component.
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*/
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/* XSAVES is added in version 2 */
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.features[FEAT_XSAVE] =
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CPUID_XSAVE_XSAVEOPT | CPUID_XSAVE_XSAVEC |
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CPUID_XSAVE_XGETBV1,
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@ -4050,6 +4077,17 @@ static X86CPUDefinition builtin_x86_defs[] = {
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.xlevel = 0x8000001E,
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.model_id = "Hygon Dhyana Processor",
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.cache_info = &epyc_cache_info,
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.versions = (X86CPUVersionDefinition[]) {
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{ .version = 1 },
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{ .version = 2,
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.note = "XSAVES",
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.props = (PropValue[]) {
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{ "xsaves", "on" },
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{ /* end of list */ }
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},
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},
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{ /* end of list */ }
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}
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},
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{
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.name = "EPYC-Rome",
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