lkml.org 
[lkml]   [2021]   [Aug]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v7 01/15] perf/x86/intel: Fix the comment about guest LBR support on KVM
Date
From: Like Xu <like.xu@linux.intel.com>

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>
---
arch/x86/events/intel/core.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c
index fca7a6e2242f..a30b3ae09386 100644
--- a/arch/x86/events/intel/core.c
+++ b/arch/x86/events/intel/core.c
@@ -6264,8 +6264,7 @@ __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))
--
2.25.1
\
 
 \ /
  Last update: 2021-08-06 09:30    [W:0.233 / U:0.052 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site