Sandipan Das 39da708cb2 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 13:05:15 +02:00
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amd	perf/x86/amd/lbr: Discard erroneous branch entries	2024-04-13 13:05:15 +02:00
intel	KVM: x86/pmu: fix masking logic for MSR_CORE_PERF_GLOBAL_CTRL	2024-01-10 17:10:21 +01:00
zhaoxin	x86/perf/zhaoxin: Add stepping check for ZXC	2023-03-10 09:32:45 +01:00
core.c	perf/x86: Refuse to export capabilities for hybrid PMUs	2023-02-22 12:59:55 +01:00
Kconfig	perf/x86/Kconfig: Fix indentation in the Kconfig file	2022-05-25 15:54:26 +02:00
Makefile	perf/x86: Move branch classifier	2022-08-27 00:05:44 +02:00
msr.c	perf/x86/msr: Add Emerald Rapids	2023-02-01 08:34:30 +01:00
perf_event.h	Perf events updates for v6.1:	2022-10-10 09:27:46 -07:00
perf_event_flags.h	x86/perf: Assert all platform event flags are within PERF_EVENT_FLAG_ARCH	2022-09-07 21:54:01 +02:00
probe.c	perf/x86/rapl: Add msr mask support	2021-02-10 14:44:54 +01:00
probe.h	perf/x86/rapl: Add msr mask support	2021-02-10 14:44:54 +01:00
rapl.c	perf/x86/rapl: Add support for Intel Emerald Rapids	2023-01-24 07:24:32 +01:00
utils.c	perf/x86/lbr: Filter vsyscall addresses	2023-10-19 23:08:56 +02:00