summaryrefslogtreecommitdiffstats
path: root/arch/x86/kvm/reverse_cpuid.h
diff options
context:
space:
mode:
Diffstat (limited to 'arch/x86/kvm/reverse_cpuid.h')
-rw-r--r--arch/x86/kvm/reverse_cpuid.h35
1 files changed, 23 insertions, 12 deletions
diff --git a/arch/x86/kvm/reverse_cpuid.h b/arch/x86/kvm/reverse_cpuid.h
index b816506783..aadefcaa95 100644
--- a/arch/x86/kvm/reverse_cpuid.h
+++ b/arch/x86/kvm/reverse_cpuid.h
@@ -16,6 +16,7 @@ enum kvm_only_cpuid_leafs {
CPUID_7_1_EDX,
CPUID_8000_0007_EDX,
CPUID_8000_0022_EAX,
+ CPUID_7_2_EDX,
NR_KVM_CPU_CAPS,
NKVMCAPINTS = NR_KVM_CPU_CAPS - NCAPINTS,
@@ -46,6 +47,14 @@ enum kvm_only_cpuid_leafs {
#define X86_FEATURE_AMX_COMPLEX KVM_X86_FEATURE(CPUID_7_1_EDX, 8)
#define X86_FEATURE_PREFETCHITI KVM_X86_FEATURE(CPUID_7_1_EDX, 14)
+/* Intel-defined sub-features, CPUID level 0x00000007:2 (EDX) */
+#define X86_FEATURE_INTEL_PSFD KVM_X86_FEATURE(CPUID_7_2_EDX, 0)
+#define X86_FEATURE_IPRED_CTRL KVM_X86_FEATURE(CPUID_7_2_EDX, 1)
+#define KVM_X86_FEATURE_RRSBA_CTRL KVM_X86_FEATURE(CPUID_7_2_EDX, 2)
+#define X86_FEATURE_DDPD_U KVM_X86_FEATURE(CPUID_7_2_EDX, 3)
+#define X86_FEATURE_BHI_CTRL KVM_X86_FEATURE(CPUID_7_2_EDX, 4)
+#define X86_FEATURE_MCDT_NO KVM_X86_FEATURE(CPUID_7_2_EDX, 5)
+
/* CPUID level 0x80000007 (EDX). */
#define KVM_X86_FEATURE_CONSTANT_TSC KVM_X86_FEATURE(CPUID_8000_0007_EDX, 8)
@@ -80,6 +89,7 @@ static const struct cpuid_reg reverse_cpuid[] = {
[CPUID_8000_0007_EDX] = {0x80000007, 0, CPUID_EDX},
[CPUID_8000_0021_EAX] = {0x80000021, 0, CPUID_EAX},
[CPUID_8000_0022_EAX] = {0x80000022, 0, CPUID_EAX},
+ [CPUID_7_2_EDX] = { 7, 2, CPUID_EDX},
};
/*
@@ -106,18 +116,19 @@ static __always_inline void reverse_cpuid_check(unsigned int x86_leaf)
*/
static __always_inline u32 __feature_translate(int x86_feature)
{
- if (x86_feature == X86_FEATURE_SGX1)
- return KVM_X86_FEATURE_SGX1;
- else if (x86_feature == X86_FEATURE_SGX2)
- return KVM_X86_FEATURE_SGX2;
- else if (x86_feature == X86_FEATURE_SGX_EDECCSSA)
- return KVM_X86_FEATURE_SGX_EDECCSSA;
- else if (x86_feature == X86_FEATURE_CONSTANT_TSC)
- return KVM_X86_FEATURE_CONSTANT_TSC;
- else if (x86_feature == X86_FEATURE_PERFMON_V2)
- return KVM_X86_FEATURE_PERFMON_V2;
-
- return x86_feature;
+#define KVM_X86_TRANSLATE_FEATURE(f) \
+ case X86_FEATURE_##f: return KVM_X86_FEATURE_##f
+
+ switch (x86_feature) {
+ KVM_X86_TRANSLATE_FEATURE(SGX1);
+ KVM_X86_TRANSLATE_FEATURE(SGX2);
+ KVM_X86_TRANSLATE_FEATURE(SGX_EDECCSSA);
+ KVM_X86_TRANSLATE_FEATURE(CONSTANT_TSC);
+ KVM_X86_TRANSLATE_FEATURE(PERFMON_V2);
+ KVM_X86_TRANSLATE_FEATURE(RRSBA_CTRL);
+ default:
+ return x86_feature;
+ }
}
static __always_inline u32 __feature_leaf(int x86_feature)