diff options
| author | Like Xu <[email protected]> | 2023-06-02 18:10:55 -0700 |
|---|---|---|
| committer | Sean Christopherson <[email protected]> | 2023-06-06 17:31:44 -0700 |
| commit | 1c2bf8a6b045a6ac4e75a7a07fde70db63e5a380 (patch) | |
| tree | 8bf7f1b2e759dd2f19e65aa636cb0f11a71aa8de /tools/perf/scripts/python/bin/export-to-sqlite-report | |
| parent | d338d8789e64b2d8ed2f82f9364c415d6efa118d (diff) | |
KVM: x86/pmu: Constrain the num of guest counters with kvm_pmu_cap
Cap the number of general purpose counters enumerated on AMD to what KVM
actually supports, i.e. don't allow userspace to coerce KVM into thinking
there are more counters than actually exist, e.g. by enumerating
X86_FEATURE_PERFCTR_CORE in guest CPUID when its not supported.
Suggested-by: Sean Christopherson <[email protected]>
Signed-off-by: Like Xu <[email protected]>
[sean: massage changelog]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Sean Christopherson <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/bin/export-to-sqlite-report')
0 files changed, 0 insertions, 0 deletions