Nicholas Piggin 63fe567a06 powerpc/perf: Fix disabling BHRB and instruction sampling ...

commit ea142e590a upstream.

When the PMU is disabled, MMCRA is not updated to disable BHRB and
instruction sampling. This can lead to those features remaining enabled,
which can slow down a real or emulated CPU.

Fixes: 1cade527f6 ("powerpc/perf: BHRB control to disable BHRB logic when not used")
Cc: stable@vger.kernel.org # v5.9+
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20231018153423.298373-1-npiggin@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2023-11-28 17:19:55 +00:00

..

boot

powerpc: dts: add missing space before {

2023-08-25 08:39:30 +10:00

configs

Merge tag 'kbuild-v6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

2023-09-05 11:01:47 -07:00

crypto

Merge tag 'v6.6-p2' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

2023-09-01 15:39:25 -07:00

include

powerpc/40x: Remove stale PTE_ATOMIC_UPDATES macro

2023-11-20 11:59:28 +01:00

kernel

powerpc: Hide empty pt_regs at base of the stack

2023-11-20 11:59:28 +01:00

kexec

powerpc/vmcore: Add MMU information to vmcoreinfo

2023-11-20 11:59:29 +01:00

kvm

Merge tag 'powerpc-6.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

2023-08-31 12:43:10 -07:00

lib

powerpc/qspinlock: Fix stale propagated yield_cpu

2023-10-18 21:07:21 +11:00

math-emu

…

mm

Merge tag 'powerpc-6.6-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

2023-10-27 05:40:42 -10:00

net

powerpc/bpf: populate extable entries only during the last pass

2023-05-15 15:40:31 +10:00

perf

powerpc/perf: Fix disabling BHRB and instruction sampling

2023-11-28 17:19:55 +00:00

platforms

powerpc/pseries: fix potential memory leak in init_cpu_associativity()

2023-11-20 11:59:29 +01:00

purgatory

powerpc/purgatory: remove PGO flags

2023-06-12 11:31:50 -07:00

sysdev

powerpc/xive: Fix endian conversion size

2023-11-20 11:59:28 +01:00

tools

powerpc/ftrace: Add support for -fpatchable-function-entry

2023-08-22 00:09:06 +10:00

xmon

Merge tag 'tty-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

2023-09-01 09:38:00 -07:00

Kbuild

…

Kconfig

powerpc/mm: Allow ARCH_FORCE_MAX_ORDER up to 12

2023-10-15 20:55:03 +11:00

Kconfig.debug

powerpc: allow PPC_EARLY_DEBUG_CPM only when SERIAL_CPM=y

2023-07-03 16:07:55 +10:00

Makefile

powerpc/64s: Move CPU -mtune options into Kconfig

2023-08-25 08:39:29 +10:00

Makefile.postlink

kbuild: remove --include-dir MAKEFLAG from top Makefile

2023-02-05 18:51:22 +09:00