Sandipan Das 20e9bdf9a7 perf/x86/amd/lbr: Discard erroneous branch entries ... [ Upstream commit 29297ffffb ] The Revision Guide for AMD Family 19h Model 10-1Fh processors declares Erratum 1452 which states that non-branch entries may erroneously be recorded in the Last Branch Record (LBR) stack with the valid and spec bits set. Such entries can be recognized by inspecting bit 61 of the corresponding LastBranchStackToIp register. This bit is currently reserved but if found to be set, the associated branch entry should be discarded. Signed-off-by: Sandipan Das <sandipan.das@amd.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://bugzilla.kernel.org/attachment.cgi?id=305518 Link: https://lore.kernel.org/r/3ad2aa305f7396d41a40e3f054f740d464b16b7f.1706526029.git.sandipan.das@amd.com Signed-off-by: Sasha Levin <sashal@kernel.org>		2024-04-13 13:10:08 +02:00
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brs.c	arch/x86: Fix typos	2024-01-03 11:46:22 +01:00
core.c	perf/x86/amd/core: Update and fix stalled-cycles-* events for Zen 2 and later	2024-04-03 15:32:50 +02:00
ibs.c	perf/x86/amd: Reject branch stack for IBS events	2023-11-30 09:34:40 +01:00
iommu.c	x86/events/amd/iommu: Remove redundant assignment to variable shift	2021-12-28 21:30:05 +01:00
iommu.h	IOMMU Updates for Linux v5.13	2021-05-01 09:33:00 -07:00
lbr.c	perf/x86/amd/lbr: Discard erroneous branch entries	2024-04-13 13:10:08 +02:00
Makefile	perf/x86/amd/lbr: Detect LbrExtV2 support	2022-08-27 00:05:43 +02:00
power.c	perf/x86/amd/power: Assign pmu.module	2021-08-26 09:12:57 +02:00
uncore.c	X86 core code updates:	2023-10-30 17:37:47 -10:00