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authorLike Xu <like.xu@linux.intel.com>2022-05-17 18:40:45 +0300
committerPaolo Bonzini <pbonzini@redhat.com>2022-06-08 20:06:14 +0300
commit92d80178a35b1ab04c4a8250a06399150dbf0b6a (patch)
tree7b2ff5a5a9fc53aba810fc06ef263baa8a9ec3ea /arch
parent2f4073e08f4cc5a41e35d777c240aaadd0257051 (diff)
downloadlinux-92d80178a35b1ab04c4a8250a06399150dbf0b6a.tar.xz
perf/x86/intel: Fix the comment about guest LBR support on KVM
Starting from v5.12, KVM reports guest LBR and extra_regs support when the host has relevant support. Just delete this part of the comment and fix a typo incidentally. Cc: Peter Zijlstra <peterz@infradead.org> Reviewed-by: Kan Liang <kan.liang@linux.intel.com> Reviewed-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Like Xu <like.xu@linux.intel.com> Signed-off-by: Yang Weijiang <weijiang.yang@intel.com> Message-Id: <20220517154100.29983-2-weijiang.yang@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/events/intel/core.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c
index 39832a5e7d75..4e9b7af9cc45 100644
--- a/arch/x86/events/intel/core.c
+++ b/arch/x86/events/intel/core.c
@@ -6501,8 +6501,7 @@ __init int intel_pmu_init(void)
x86_pmu.intel_ctrl);
/*
* Access LBR MSR may cause #GP under certain circumstances.
- * E.g. KVM doesn't support LBR MSR
- * Check all LBT MSR here.
+ * Check all LBR MSR here.
* Disable LBR access if any LBR MSRs can not be accessed.
*/
if (x86_pmu.lbr_tos && !check_msr(x86_pmu.lbr_tos, 0x3UL))