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android_kernel_xiaomi_sm8450/Documentation
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Kim Phillips 34a81f5259 x86/cpu: Enable STIBP on AMD if Automatic IBRS is enabled 
commit fd470a8beed88440b160d690344fbae05a0b9b1b upstream.

Unlike Intel's Enhanced IBRS feature, AMD's Automatic IBRS does not
provide protection to processes running at CPL3/user mode, see section
"Extended Feature Enable Register (EFER)" in the APM v2 at
https://bugzilla.kernel.org/attachment.cgi?id=304652

Explicitly enable STIBP to protect against cross-thread CPL3
branch target injections on systems with Automatic IBRS enabled.

Also update the relevant documentation.

Fixes: e7862eda309e ("x86/cpu: Support AMD Automatic IBRS")
Reported-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Kim Phillips <kim.phillips@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20230720194727.67022-1-kim.phillips@amd.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-04-13 12:59:13 +02:00
..
ABI
x86/rfds: Mitigate Register File Data Sampling (RFDS)
2024-04-13 12:58:59 +02:00
accounting
psi: Fix uaf issue when psi trigger is destroyed while being polled
2022-02-05 12:37:55 +01:00
admin-guide
x86/cpu: Enable STIBP on AMD if Automatic IBRS is enabled
2024-04-13 12:59:13 +02:00
arm
ARM: 9012/1: move device tree mapping out of linear region
2021-05-19 10:13:18 +02:00
arm64
perf/smmuv3: Enable HiSilicon Erratum 162001900 quirk for HIP08/09
2023-09-23 11:01:05 +02:00
block
block: introduce zone_write_granularity limit
2024-04-13 12:58:07 +02:00
bpf
bpf: Migrate from patchwork.ozlabs.org to patchwork.kernel.org.
2020-10-11 22:05:47 +02:00
cdrom
…
core-api
kernel.h: split out kstrtox() and simple_strtox() to a separate header
2023-06-21 15:45:35 +02:00
cpu-freq
…
crypto
crypto: af_alg - add extra parameters for DRBG interface
2020-09-25 17:48:52 +10:00
dev-tools
docs/scripts/gdb: add necessary make scripts_gdb step
2023-03-11 16:39:52 +01:00
devicetree
dt-bindings: nvmem: mxs-ocotp: Document fsl,ocotp
2024-01-05 15:12:28 +01:00
doc-guide
docs: kerneldoc.py: add support for kerneldoc -nosymbol
2020-10-15 07:49:38 +02:00
driver-api
spi: Update reference to struct spi_controller
2023-01-14 10:15:26 +01:00
fault-injection
debugfs: fix error when writing negative value to atomic_t debugfs file
2023-01-14 10:15:19 +01:00
fb
Merge tag 'drm-next-2020-10-23' of git://anongit.freedesktop.org/drm/drm
2020-10-23 13:56:34 -07:00
features
Merge tag 's390-5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
2020-10-16 12:36:38 -07:00
filesystems
rename(): fix the locking of subdirectories
2024-02-23 08:41:54 +01:00
firmware_class
…
firmware-guide
Documentation: ACPI: EINJ: Fix obsolete example
2022-08-25 11:37:53 +02:00
fpga
…
gpu
Revert "fbcon: Disable accelerated scrolling"
2022-02-08 18:30:40 +01:00
hid
…
hwmon
hwmon: (lm90) Add basic support for TI TMP461
2021-12-29 12:25:59 +01:00
i2c
Documentation: i2c: add testunit docs to index
2020-10-05 22:57:45 +02:00
ia64
…
ide
…
iio
Documentation: iio: fix a typo
2020-09-09 11:41:20 -06:00
infiniband
…
input
Input: iforce - add support for Boeder Force Feedback Wheel
2022-09-20 12:38:32 +02:00
isdn
…
kbuild
Documentation/Kbuild: Remove references to gcc-plugin.sh
2021-12-14 11:32:46 +01:00
kernel-hacking
docs: futex: Fix kernel-doc references after code split-up preparation
2023-04-26 11:27:40 +02:00
leds
docs: leds: index.rst: add a missing file
2020-11-02 13:45:37 +01:00
litmus-tests
…
livepatch
…
locking
Documentation/locking/locktypes: Update migrate_disable() bits.
2021-12-14 11:32:42 +01:00
m68k
…
maintainer
…
mhi
…
mips
dt: Remove booting-without-of.rst
2020-10-13 13:33:16 -05:00
misc-devices
Documentation: remove mic/index from misc-devices/index.rst
2020-11-04 11:38:32 +01:00
netlabel
…
networking
net: change accept_ra_min_rtr_lft to affect all RA lifetimes
2023-10-25 11:54:14 +02:00
nios2
…
nvdimm
…
openrisc
…
parisc
…
PCI
Documentation: better locations for sysfs-pci, sysfs-tagging
2020-10-09 09:33:23 -06:00
pcmcia
…
power
PCI/PM: Rename pci_dev.d3_delay to d3hot_delay
2020-09-29 14:21:50 -05:00
powerpc
powerpc/doc: Fix htmldocs errors
2023-04-26 11:27:37 +02:00
process
overflow: Implement size_t saturating arithmetic helpers
2023-11-20 11:06:44 +01:00
RCU
Merge branch 'for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu
2020-10-09 08:21:56 +02:00
riscv
…
s390
…
scheduler
docs: scheduler: fix the directory name on two files
2020-09-10 10:45:45 -06:00
scsi
scsi: core: Fix the scsi_set_resid() documentation
2023-09-19 12:20:21 +02:00
security
watch_queue: Drop references to /dev/watch_queue
2021-03-04 11:37:59 +01:00
sh
dt: Remove booting-without-of.rst
2020-10-13 13:33:16 -05:00
sound
ASoC: doc: Fix undefined SND_SOC_DAPM_NOPM argument
2024-02-23 08:42:10 +01:00
sparc
…
sphinx
docs: Fix the docs build with Sphinx 6.0
2023-01-18 11:44:53 +01:00
sphinx-static
…
spi
…
staging
…
target
tweewide: Fix most Shebang lines
2021-05-22 11:40:55 +02:00
timers
…
trace
attr: use consistent sgid stripping checks
2023-03-22 13:30:08 +01:00
translations
docs: futex: Fix kernel-doc references after code split-up preparation
2023-04-26 11:27:40 +02:00
usb
…
userspace-api
Remove DECnet support from kernel
2023-06-21 15:45:38 +02:00
virt
KVM: s390: disable migration mode when dirty tracking is disabled
2023-03-11 16:39:58 +01:00
vm
arm: remove CONFIG_ARCH_HAS_HOLES_MEMORYMODEL
2022-05-15 20:00:09 +02:00
w1
docs: w1: w1_therm: Fix broken xref, mistakes, clarify text
2020-10-08 09:47:15 +02:00
watchdog
…
x86
x86/bugs: Use ALTERNATIVE() instead of mds_user_clear static key
2024-04-13 12:58:57 +02:00
xtensa
xtensa: fix TLBTEMP area placement
2020-11-16 02:13:15 -08:00
.gitignore
…
asm-annotations.rst
x86/entry: Emit a symbol for register restoring thunk
2021-02-03 23:28:40 +01:00
atomic_bitops.txt
locking/atomic: Make test_and_*_bit() ordered on failure
2022-08-25 11:38:10 +02:00
atomic_t.txt
…
Changes
…
CodingStyle
…
conf.py
docs/conf.py: Cope with removal of language=None in Sphinx 5.0.0
2022-06-09 10:21:28 +02:00
COPYING-logo
…
docutils.conf
…
dontdiff
kbuild: generate Module.symvers only when vmlinux exists
2021-05-19 10:12:59 +02:00
index.rst
…
Kconfig
docs: Kconfig/Makefile: add a check for broken ABI files
2020-10-30 13:08:07 +01:00
logo.gif
…
Makefile
Merge tag 'docs-5.10-3' of git://git.lwn.net/linux
2020-11-03 09:57:30 -08:00
memory-barriers.txt
…
SubmittingPatches
…
watch_queue.rst
docs: watch_queue: fix some warnings
2020-09-10 10:48:56 -06:00