Commit c76a9238 authored by Colton Lewis's avatar Colton Lewis Committed by Sean Christopherson
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KVM: selftests: Add defines for AMD PMU CPUID features and properties 



Add macros for AMD's PMU related CPUID features.  To make it easier to
cross reference selftest code with KVM/kernel code, use the same macro
names as the kernel for the features.

For reference, the AMD APM defines the features/properties as:

  * PerfCtrExtCore (six core counters instead of four)
  * PerfCtrExtNB (four counters for northbridge events)
  * PerfCtrExtL2I (four counters for L2 cache events)
  * PerfMonV2 (support for registers to control multiple
    counters with a single register write)
  * LbrAndPmcFreeze (support for freezing last branch recorded stack on
    performance counter overflow)
  * NumPerfCtrCore (number of core counters)
  * NumPerfCtrNB (number of northbridge counters)

Signed-off-by: default avatarColton Lewis <coltonlewis@google.com>
Link: https://lore.kernel.org/r/20240918205319.3517569-3-coltonlewis@google.com


[sean: massage changelog, use same names as the kernel]
Signed-off-by: default avatarSean Christopherson <seanjc@google.com>
parent 97d0d165

tools/testing/selftests/kvm/include/x86/processor.h

+7 −0
Original line number Diff line number Diff line
@@ -181,6 +181,9 @@ struct kvm_x86_cpu_feature { 
 * Extended Leafs, a.k.a. AMD defined

 */

#define	X86_FEATURE_SVM			KVM_X86_CPU_FEATURE(0x80000001, 0, ECX, 2)

#define	X86_FEATURE_PERFCTR_CORE	KVM_X86_CPU_FEATURE(0x80000001, 0, ECX, 23)

#define	X86_FEATURE_PERFCTR_NB		KVM_X86_CPU_FEATURE(0x80000001, 0, ECX, 24)

#define	X86_FEATURE_PERFCTR_LLC		KVM_X86_CPU_FEATURE(0x80000001, 0, ECX, 28)

#define	X86_FEATURE_NX			KVM_X86_CPU_FEATURE(0x80000001, 0, EDX, 20)

#define	X86_FEATURE_GBPAGES		KVM_X86_CPU_FEATURE(0x80000001, 0, EDX, 26)

#define	X86_FEATURE_RDTSCP		KVM_X86_CPU_FEATURE(0x80000001, 0, EDX, 27)
@@ -197,6 +200,8 @@ struct kvm_x86_cpu_feature { 
#define	X86_FEATURE_VGIF		KVM_X86_CPU_FEATURE(0x8000000A, 0, EDX, 16)

#define X86_FEATURE_SEV			KVM_X86_CPU_FEATURE(0x8000001F, 0, EAX, 1)

#define X86_FEATURE_SEV_ES		KVM_X86_CPU_FEATURE(0x8000001F, 0, EAX, 3)

#define	X86_FEATURE_PERFMON_V2		KVM_X86_CPU_FEATURE(0x80000022, 0, EAX, 0)

#define	X86_FEATURE_LBR_PMC_FREEZE	KVM_X86_CPU_FEATURE(0x80000022, 0, EAX, 2)



/*

 * KVM defined paravirt features.
@@ -283,6 +288,8 @@ struct kvm_x86_cpu_property { 
#define X86_PROPERTY_GUEST_MAX_PHY_ADDR		KVM_X86_CPU_PROPERTY(0x80000008, 0, EAX, 16, 23)

#define X86_PROPERTY_SEV_C_BIT			KVM_X86_CPU_PROPERTY(0x8000001F, 0, EBX, 0, 5)

#define X86_PROPERTY_PHYS_ADDR_REDUCTION	KVM_X86_CPU_PROPERTY(0x8000001F, 0, EBX, 6, 11)

#define X86_PROPERTY_NR_PERFCTR_CORE		KVM_X86_CPU_PROPERTY(0x80000022, 0, EBX, 0, 3)

#define X86_PROPERTY_NR_PERFCTR_NB		KVM_X86_CPU_PROPERTY(0x80000022, 0, EBX, 10, 15)



#define X86_PROPERTY_MAX_CENTAUR_LEAF		KVM_X86_CPU_PROPERTY(0xC0000000, 0, EAX, 0, 31)