i386: Add PKU on Skylake-Server CPU model
As the release document ref below link (page 13): https://software.intel.com/sites/default/files/managed/c5/15/\ architecture-instruction-set-extensions-programming-reference.pdf PKU is supported in Skylake Server (Only Server) and later, and on Intel(R) Xeon(R) Processor Scalable Family. So PKU is supposed to be in Skylake-Server CPU model. And PKU's CPUID has been exposed to QEMU. But PKU can't be find in Skylake-Server CPU model in the code. So this patch will fix this issue in Skylake-Server CPU model. Signed-off-by: Tao Xu <tao3.xu@intel.com> Message-Id: <5014b57f834dcfa8fd3781504d98dcf063d54fde.1540801392.git.tao3.xu@intel.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
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@ -300,7 +300,15 @@ bool e820_get_entry(int, uint32_t, uint64_t *, uint64_t *);
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.driver = TYPE_X86_CPU,\
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.property = "x-hv-synic-kvm-only",\
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.value = "on",\
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}
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},{\
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.driver = "Skylake-Server" "-" TYPE_X86_CPU,\
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.property = "pku",\
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.value = "off",\
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},{\
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.driver = "Skylake-Server-IBRS" "-" TYPE_X86_CPU,\
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.property = "pku",\
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.value = "off",\
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},
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#define PC_COMPAT_2_12 \
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HW_COMPAT_2_12 \
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@ -2392,6 +2392,8 @@ static X86CPUDefinition builtin_x86_defs[] = {
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CPUID_7_0_EBX_AVX512F | CPUID_7_0_EBX_AVX512DQ |
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CPUID_7_0_EBX_AVX512BW | CPUID_7_0_EBX_AVX512CD |
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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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@ -2442,6 +2444,8 @@ static X86CPUDefinition builtin_x86_defs[] = {
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CPUID_7_0_EBX_AVX512F | CPUID_7_0_EBX_AVX512DQ |
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CPUID_7_0_EBX_AVX512BW | CPUID_7_0_EBX_AVX512CD |
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CPUID_7_0_EBX_AVX512VL,
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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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