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26db2e0c51
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Kim Phillips 26db2e0c51 perf/x86/amd/ibs: Work around erratum #1197 
Erratum #1197 "IBS (Instruction Based Sampling) Register State May be
Incorrect After Restore From CC6" is published in a document:

  "Revision Guide for AMD Family 19h Models 00h-0Fh Processors" 56683 Rev. 1.04 July 2021

  https://bugzilla.kernel.org/show_bug.cgi?id=206537

Implement the erratum's suggested workaround and ignore IBS samples if
MSRC001_1031 == 0.

Signed-off-by: Kim Phillips <kim.phillips@amd.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20210817221048.88063-3-kim.phillips@amd.com
2021-08-26 08:58:02 +02:00
..
alpha libata-5.14-2021-07-30 2021-07-30 10:56:47 -07:00
arc ARC: fp: set FPU_STATUS.FWE to enable FPU_STATUS update on context switch 2021-08-03 18:58:33 -07:00
arm ARM: ixp4xx: fix building both pci drivers 2021-08-12 23:10:09 +02:00
arm64 arm64 fixes for -rc7 2021-08-20 12:18:49 -07:00
csky Kbuild updates for v5.14 2021-07-10 11:01:38 -07:00
h8300 libata-5.14-2021-07-30 2021-07-30 10:56:47 -07:00
hexagon Kbuild updates for v5.14 2021-07-10 11:01:38 -07:00
ia64 libata-5.14-2021-07-30 2021-07-30 10:56:47 -07:00
m68k libata-5.14-2021-07-30 2021-07-30 10:56:47 -07:00
microblaze Kbuild updates for v5.14 2021-07-10 11:01:38 -07:00
mips TTY/Serial fixes for 5.14-rc5 2021-08-08 10:23:13 -07:00
nds32 nds32: fix up stack guard gap 2021-07-21 15:51:37 +02:00
nios2 Kbuild updates for v5.14 2021-07-10 11:01:38 -07:00
openrisc Kbuild updates for v5.14 2021-07-10 11:01:38 -07:00
parisc libata-5.14-2021-07-30 2021-07-30 10:56:47 -07:00
powerpc powerpc fixes for 5.14 #6 2021-08-22 09:49:31 -07:00
riscv RISC-V Fixes for 5.14-rc7 2021-08-21 11:04:26 -07:00
s390 s390/pci: fix use after free of zpci_dev 2021-08-18 10:12:42 +02:00
sh libata-5.14-2021-07-30 2021-07-30 10:56:47 -07:00
sparc Networking fixes for 5.14-rc4, including fixes from bpf, can, WiFi (mac80211) 2021-07-30 16:01:36 -07:00
um Kbuild updates for v5.14 2021-07-10 11:01:38 -07:00
x86 perf/x86/amd/ibs: Work around erratum #1197 2021-08-26 08:58:02 +02:00
xtensa libata-5.14-2021-07-30 2021-07-30 10:56:47 -07:00
.gitignore
Kconfig Kconfig: Introduce ARCH_WANTS_NO_INSTR and CC_HAS_NO_PROFILE_FN_ATTR 2021-06-22 11:07:18 -07:00