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| author |  Sean Christopherson <seanjc@google.com>
| 2023-11-09 18:28:52 -0800 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com>
| 2024-02-01 09:35:48 -0800 |
| commit | e5a65d4f723ab9997deab798c539e6bfd71f8440 (patch) | |
| tree | c8ad383b1b4c18509af87f9aea4e66133a372067 /arch/x86/kvm/pmu.h | |
| parent | KVM: x86/pmu: Snapshot and clear reprogramming bitmap before reprogramming (diff) | |
| download | linux-e5a65d4f723ab9997deab798c539e6bfd71f8440.tar.gz linux-e5a65d4f723ab9997deab798c539e6bfd71f8440.tar.bz2 linux-e5a65d4f723ab9997deab798c539e6bfd71f8440.zip | |
KVM: x86/pmu: Add macros to iterate over all PMCs given a bitmap
Add and use kvm_for_each_pmc() to dedup a variety of open coded for-loops
that iterate over valid PMCs given a bitmap (and because seeing checkpatch
whine about bad macro style is always amusing).
No functional change intended.
Link: https://lore.kernel.org/r/20231110022857.1273836-6-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Diffstat (limited to 'arch/x86/kvm/pmu.h')
| -rw-r--r-- | arch/x86/kvm/pmu.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/x86/kvm/pmu.h b/arch/x86/kvm/pmu.h index 56e8e665e1af..fd18bc0b281c 100644 --- a/arch/x86/kvm/pmu.h +++ b/arch/x86/kvm/pmu.h @@ -83,6 +83,12 @@ static inline struct kvm_pmc *kvm_pmc_idx_to_pmc(struct kvm_pmu *pmu, int idx) return NULL; } +#define kvm_for_each_pmc(pmu, pmc, i, bitmap) \ + for_each_set_bit(i, bitmap, X86_PMC_IDX_MAX) \ + if (!(pmc = kvm_pmc_idx_to_pmc(pmu, i))) \ + continue; \ + else \ + static inline u64 pmc_bitmask(struct kvm_pmc *pmc) { struct kvm_pmu *pmu = pmc_to_pmu(pmc); |