KVM: x86/pmu: Introduce distinct macros for GP/fixed counter max number

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Refine the macros which define maximum General Purpose (GP) and fixed
counter numbers.

Currently the macro KVM_INTEL_PMC_MAX_GENERIC is used to represent the
maximum supported General Purpose (GP) counter number ambiguously across
Intel and AMD platforms. This would cause issues if AMD begins to support
more GP counters than Intel.

Thus a bunch of new macros including vendor specific and vendor
independent are introduced to replace the old macros. The vendor
independent macros are used in x86 common code to hide vendor difference
and eliminate the ambiguity.

No logic changes are introduced in this patch.

Signed-off-by: Dapeng Mi <dapeng1.mi@linux.intel.com>
Link: https://lore.kernel.org/r/20240627021756.144815-1-dapeng1.mi@linux.intel.com
Co-developed-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>

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This commit is contained in:

Dapeng Mi 2024-06-27 10:17:55 +08:00 • committed by Sean Christopherson

parent 3b65a692a5

commit f287bef6dd

6 changed files with 31 additions and 25 deletions

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20

arch/x86/include/asm/kvm_host.h

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2

arch/x86/kvm/pmu.c

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2

arch/x86/kvm/pmu.h

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7

arch/x86/kvm/svm/pmu.c

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10

arch/x86/kvm/vmx/pmu_intel.c

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15

arch/x86/kvm/x86.c

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