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i386: Enable NPT and NRIPSAVE for AMD CPUs

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Modern AMD CPUs support NPT and NRIPSAVE features and KVM exposes these
when present. NRIPSAVE apeared somewhere in Opteron_G3 lifetime (e.g.
QuadCore AMD Opteron 2378 has is but QuadCore AMD Opteron HE 2344 doesn't),
NPT was introduced a bit earlier.

Add the FEAT_SVM leaf to Opteron_G4/G5 and EPYC/EPYC-IBPB cpu models.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20190121155051.5628-1-vkuznets@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
This commit is contained in:
Vitaly Kuznetsov 2019-01-21 16:50:51 +01:00 committed by Eduardo Habkost
parent b0a1980384
commit 9fe8b7be17
2 changed files with 16 additions and 0 deletions
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8
hw/i386/pc.c
View file

@ -114,7 +114,15 @@ GlobalProperty pc_compat_3_1[] = {
{ "intel-iommu", "dma-drain", "off" },
{ "Opteron_G3" "-" TYPE_X86_CPU, "rdtscp", "off" },
{ "Opteron_G4" "-" TYPE_X86_CPU, "rdtscp", "off" },
{ "Opteron_G4" "-" TYPE_X86_CPU, "npt", "off" },
{ "Opteron_G4" "-" TYPE_X86_CPU, "nrip-save", "off" },
{ "Opteron_G5" "-" TYPE_X86_CPU, "rdtscp", "off" },
{ "Opteron_G5" "-" TYPE_X86_CPU, "npt", "off" },
{ "Opteron_G5" "-" TYPE_X86_CPU, "nrip-save", "off" },
{ "EPYC" "-" TYPE_X86_CPU, "npt", "off" },
{ "EPYC" "-" TYPE_X86_CPU, "nrip-save", "off" },
{ "EPYC-IBPB" "-" TYPE_X86_CPU, "npt", "off" },
{ "EPYC-IBPB" "-" TYPE_X86_CPU, "nrip-save", "off" },
{ "Skylake-Client" "-" TYPE_X86_CPU, "mpx", "on" },
{ "Skylake-Client-IBRS" "-" TYPE_X86_CPU, "mpx", "on" },
{ "Skylake-Server" "-" TYPE_X86_CPU, "mpx", "on" },

8
target/i386/cpu.c
View file

@ -2801,6 +2801,8 @@ static X86CPUDefinition builtin_x86_defs[] = {
CPUID_EXT3_3DNOWPREFETCH | CPUID_EXT3_MISALIGNSSE |
CPUID_EXT3_SSE4A | CPUID_EXT3_ABM | CPUID_EXT3_SVM |
CPUID_EXT3_LAHF_LM,
.features[FEAT_SVM] =
CPUID_SVM_NPT | CPUID_SVM_NRIPSAVE,
/* no xsaveopt! */
.xlevel = 0x8000001A,
.model_id = "AMD Opteron 62xx class CPU",
@ -2831,6 +2833,8 @@ static X86CPUDefinition builtin_x86_defs[] = {
CPUID_EXT3_3DNOWPREFETCH | CPUID_EXT3_MISALIGNSSE |
CPUID_EXT3_SSE4A | CPUID_EXT3_ABM | CPUID_EXT3_SVM |
CPUID_EXT3_LAHF_LM,
.features[FEAT_SVM] =
CPUID_SVM_NPT | CPUID_SVM_NRIPSAVE,
/* no xsaveopt! */
.xlevel = 0x8000001A,
.model_id = "AMD Opteron 63xx class CPU",
@ -2877,6 +2881,8 @@ static X86CPUDefinition builtin_x86_defs[] = {
CPUID_XSAVE_XGETBV1,
.features[FEAT_6_EAX] =
CPUID_6_EAX_ARAT,
.features[FEAT_SVM] =
CPUID_SVM_NPT | CPUID_SVM_NRIPSAVE,
.xlevel = 0x8000001E,
.model_id = "AMD EPYC Processor",
.cache_info = &epyc_cache_info,
@ -2925,6 +2931,8 @@ static X86CPUDefinition builtin_x86_defs[] = {
CPUID_XSAVE_XGETBV1,
.features[FEAT_6_EAX] =
CPUID_6_EAX_ARAT,
.features[FEAT_SVM] =
CPUID_SVM_NPT | CPUID_SVM_NRIPSAVE,
.xlevel = 0x8000001E,
.model_id = "AMD EPYC Processor (with IBPB)",
.cache_info = &epyc_cache_info,