From f57bceb6ab5163ddd6c41ff4344ab8cf28a9c63d Mon Sep 17 00:00:00 2001 From: Robert Hoo Date: Mon, 15 Oct 2018 12:47:23 +0800 Subject: kvm: Add support to KVM_GET_MSR_FEATURE_INDEX_LIST and KVM_GET_MSRS system ioctl Add kvm_get_supported_feature_msrs() to get supported MSR feature index list. Add kvm_arch_get_supported_msr_feature() to get each MSR features value. Signed-off-by: Robert Hoo Message-Id: <1539578845-37944-2-git-send-email-robert.hu@linux.intel.com> Reviewed-by: Eduardo Habkost Signed-off-by: Eduardo Habkost --- include/sysemu/kvm.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/sysemu/kvm.h b/include/sysemu/kvm.h index 0b64b8e067..97d8d9d0d5 100644 --- a/include/sysemu/kvm.h +++ b/include/sysemu/kvm.h @@ -463,6 +463,8 @@ int kvm_vm_check_extension(KVMState *s, unsigned int extension); uint32_t kvm_arch_get_supported_cpuid(KVMState *env, uint32_t function, uint32_t index, int reg); +uint32_t kvm_arch_get_supported_msr_feature(KVMState *s, uint32_t index); + void kvm_set_sigmask_len(KVMState *s, unsigned int sigmask_len); -- cgit v1.2.3-55-g7522 From 09b9ee643f90ef95e30e594df2a3c83ccaf75b1f Mon Sep 17 00:00:00 2001 From: Tao Xu Date: Mon, 29 Oct 2018 16:39:53 +0800 Subject: 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 Message-Id: <5014b57f834dcfa8fd3781504d98dcf063d54fde.1540801392.git.tao3.xu@intel.com> Signed-off-by: Eduardo Habkost --- include/hw/i386/pc.h | 10 +++++++++- target/i386/cpu.c | 4 ++++ 2 files changed, 13 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h index dfe6746692..136fe497b6 100644 --- a/include/hw/i386/pc.h +++ b/include/hw/i386/pc.h @@ -300,7 +300,15 @@ bool e820_get_entry(int, uint32_t, uint64_t *, uint64_t *); .driver = TYPE_X86_CPU,\ .property = "x-hv-synic-kvm-only",\ .value = "on",\ - } + },{\ + .driver = "Skylake-Server" "-" TYPE_X86_CPU,\ + .property = "pku",\ + .value = "off",\ + },{\ + .driver = "Skylake-Server-IBRS" "-" TYPE_X86_CPU,\ + .property = "pku",\ + .value = "off",\ + }, #define PC_COMPAT_2_12 \ HW_COMPAT_2_12 \ diff --git a/target/i386/cpu.c b/target/i386/cpu.c index 9f2e93bdae..af7e9f09cc 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -2392,6 +2392,8 @@ static X86CPUDefinition builtin_x86_defs[] = { CPUID_7_0_EBX_AVX512F | CPUID_7_0_EBX_AVX512DQ | CPUID_7_0_EBX_AVX512BW | CPUID_7_0_EBX_AVX512CD | CPUID_7_0_EBX_AVX512VL | CPUID_7_0_EBX_CLFLUSHOPT, + .features[FEAT_7_0_ECX] = + CPUID_7_0_ECX_PKU, /* Missing: XSAVES (not supported by some Linux versions, * including v4.1 to v4.12). * KVM doesn't yet expose any XSAVES state save component, @@ -2442,6 +2444,8 @@ static X86CPUDefinition builtin_x86_defs[] = { CPUID_7_0_EBX_AVX512F | CPUID_7_0_EBX_AVX512DQ | CPUID_7_0_EBX_AVX512BW | CPUID_7_0_EBX_AVX512CD | CPUID_7_0_EBX_AVX512VL, + .features[FEAT_7_0_ECX] = + CPUID_7_0_ECX_PKU, /* Missing: XSAVES (not supported by some Linux versions, * including v4.1 to v4.12). * KVM doesn't yet expose any XSAVES state save component, -- cgit v1.2.3-55-g7522