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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
arch	perf/x86/amd/lbr: Discard erroneous branch entries	2024-04-13 13:10:08 +02:00
block	block: prevent division by zero in blk_rq_stat_sum()	2024-04-13 13:10:07 +02:00
certs	This update includes the following changes:	2023-11-02 16:15:30 -10:00
crypto	Revert "crypto: pkcs7 - remove sha1 support"	2024-04-03 15:32:31 +02:00
Documentation	x86/bhi: Mitigate KVM by default	2024-04-10 16:38:24 +02:00
drivers	platform/x86: touchscreen_dmi: Add an extra entry for a variant of the Chuwi Vi8 tablet	2024-04-13 13:10:08 +02:00
fs	ext4: forbid commit inconsistent quota data when errors=remount-ro	2024-04-13 13:10:05 +02:00
include	Input: allocate keycode for Display refresh rate toggle	2024-04-13 13:10:07 +02:00
init	init: open /initrd.image with O_LARGEFILE	2024-04-03 15:32:37 +02:00
io_uring	io_uring/kbuf: hold io_buffer_list reference over mmap	2024-04-10 16:38:16 +02:00
ipc	shm: Slim down dependencies	2023-12-20 19:26:31 -05:00
kernel	rcu/nocb: Fix WARN_ON_ONCE() in the rcu_nocb_bypass_lock()	2024-04-13 13:10:04 +02:00
lib	dump_stack: Do not get cpu_sync for panic CPU	2024-04-13 13:09:58 +02:00
LICENSES	LICENSES: Add the copyleft-next-0.3.1 license	2022-11-08 15:44:01 +01:00
mm	x86/mm/pat: fix VM_PAT handling in COW mappings	2024-04-10 16:38:19 +02:00
net	Bluetooth: Add new quirk for broken read key length on ATS2851	2024-04-13 13:10:02 +02:00
rust	Rust changes for v6.8	2024-01-11 13:05:41 -08:00
samples	work around gcc bugs with 'asm goto' with outputs	2024-02-09 15:57:48 -08:00
scripts	kbuild: make -Woverride-init warnings more consistent	2024-04-10 16:38:00 +02:00
security	selinux: avoid dereference of garbage after mount failure	2024-04-10 16:38:01 +02:00
sound	ASoC: Intel: avs: Populate board selection with new I2S entries	2024-04-13 13:10:05 +02:00
tools	libperf evlist: Avoid out-of-bounds access	2024-04-13 13:10:07 +02:00
usr	Kbuild updates for v6.8	2024-01-18 17:57:07 -08:00
virt	KVM: Always flush async #PF workqueue when vCPU is being destroyed	2024-04-03 15:32:03 +02:00
.clang-format	clang-format: Update with v6.7-rc4's `for_each` macro list	2023-12-08 23:54:38 +01:00
.cocciconfig
.editorconfig	Add .editorconfig file for basic formatting	2023-12-28 16:22:47 +09:00
.get_maintainer.ignore	get_maintainer: add Alan to .get_maintainer.ignore	2022-08-20 15:17:44 -07:00
.gitattributes	.gitattributes: set diff driver for Rust source code files	2023-05-31 17:48:25 +02:00
.gitignore	Add .editorconfig file for basic formatting	2023-12-28 16:22:47 +09:00
.mailmap	drm fixes for 6.8 final	2024-03-08 12:44:56 -08:00
.rustfmt.toml	rust: add `.rustfmt.toml`	2022-09-28 09:02:20 +02:00
COPYING	COPYING: state that all contributions really are covered by this file	2020-02-10 13:32:20 -08:00
CREDITS	MAINTAINERS: supplement of zswap maintainers update	2024-01-25 23:52:21 -08:00
Kbuild	Kbuild updates for v6.1	2022-10-10 12:00:45 -07:00
Kconfig	kbuild: ensure full rebuild when the compiler is updated	2020-05-12 13:28:33 +09:00
MAINTAINERS	drm fixes for 6.8 final	2024-03-08 12:44:56 -08:00
Makefile	Linux 6.8.5	2024-04-10 16:38:25 +02:00
README

README

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.