Kim Phillips e96954065d x86/cpu: Enable STIBP on AMD if Automatic IBRS is enabled ... commit fd470a8bee 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: e7862eda30 ("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>		2023-08-03 10:26:08 +02:00
..
ABI	usb: misc: eud: Fix eud sysfs path (use 'qcom_eud')	2023-07-19 16:36:32 +02:00
accel
accounting	Scheduler changes for v6.4:	2023-04-28 14:53:30 -07:00
admin-guide	x86/cpu: Enable STIBP on AMD if Automatic IBRS is enabled	2023-08-03 10:26:08 +02:00
arch	A handful of late-arriving documentation fixes, plus one Spanish	2023-05-05 13:16:42 -07:00
arm	ARM: SoC devicetree changes for 6.4	2023-04-25 12:11:54 -07:00
arm64	arm64: errata: Mitigate Ampere1 erratum AC03_CPU_38 at stage-2	2023-07-23 13:54:07 +02:00
block	Documentation/block: drop the request.rst file	2023-05-12 11:04:58 -06:00
bpf	lsm/stable-6.4 PR 20230428	2023-04-29 10:17:05 -07:00
cdrom	Documentation: use capitalization for chapters and acronyms	2023-05-16 12:49:31 -06:00
core-api	- Nick Piggin's "shoot lazy tlbs" series, to improve the peformance of	2023-04-27 19:42:02 -07:00
cpu-freq
crypto
dev-tools	Mainly singleton patches all over the place. Series of note are:	2023-04-27 19:57:00 -07:00
devicetree	dt-bindings: power: reset: qcom-pon: Only allow reboot-mode pre-pmk8350	2023-07-19 16:36:25 +02:00
doc-guide
driver-api	pwm: Changes for v6.4-rc1	2023-05-03 11:25:01 -07:00
fault-injection	lkdtm: replace ll_rw_block with submit_bh	2023-07-19 16:36:33 +02:00
fb
features
filesystems	tmpfs: fix Documentation of noswap and huge mount options	2023-08-03 10:26:00 +02:00
firmware-guide
firmware_class
fpga	Documentation: use capitalization for chapters and acronyms	2023-05-16 12:49:31 -06:00
gpu
hid
hwmon	hwmon: (aquacomputer_d5next) Add support for Aquacomputer Aquastream XT	2023-04-21 07:27:23 -07:00
i2c
iio
images
infiniband
input
isdn
kbuild	parisc: update kbuild doc. aliases for parisc64	2023-05-03 17:43:10 +02:00
kernel-hacking
leds	- New Drivers	2023-05-02 10:36:02 -07:00
litmus-tests	LKMM scripting updates for v6.4	2023-04-24 12:02:25 -07:00
livepatch	Objtool changes for v6.4:	2023-04-28 14:02:54 -07:00
locking	Documentation: use capitalization for chapters and acronyms	2023-05-16 12:49:31 -06:00
loongarch
maintainer
mhi
mips
misc-devices
mm	mm: page_table_check: Make it dependent on EXCLUSIVE_SYSTEM_RAM	2023-05-29 16:14:28 +01:00
netlabel
netlink	netlink: specs: ethtool: fix random typos	2023-06-06 18:42:20 -07:00
networking	xsk: Honor SO_BINDTODEVICE on bind	2023-07-19 16:36:47 +02:00
nvdimm
nvme
PCI
pcmcia	Documentation: use capitalization for chapters and acronyms	2023-05-16 12:49:31 -06:00
peci
power	regulator: consumer.rst: fix 'regulator_enable' typo.	2023-04-27 21:55:38 +01:00
powerpc
process	Documentation: security-bugs.rst: clarify CVE handling	2023-08-03 10:26:05 +02:00
RCU
riscv	Documentation: RISC-V: patch-acceptance: mention patchwork's role	2023-06-14 07:44:11 -07:00
rust
s390	s390/iommu: get rid of S390_CCW_IOMMU and S390_AP_IOMMU	2023-05-17 15:20:18 +02:00
scheduler	sh updates for v6.4	2023-04-27 17:41:23 -07:00
scsi
security	lsm: move hook comments docs to security/security.c	2023-04-28 11:58:34 -04:00
sound	ALSA: docs: Fix code block indentation in ALSA driver example	2023-05-03 08:08:25 +02:00
sphinx
sphinx-static
spi
staging	Documentation: use capitalization for chapters and acronyms	2023-05-16 12:49:31 -06:00
target
timers	Documentation: use capitalization for chapters and acronyms	2023-05-16 12:49:31 -06:00
tools	rtla/timerlat: Add auto-analysis only option	2023-04-25 19:26:17 -04:00
trace	tracing/user_events: Document auto-cleanup and remove dyn_event refs	2023-06-14 13:43:27 -04:00
translations	docs: zh_CN/devicetree: sync usage-model fix	2023-06-08 07:31:59 -06:00
usb
userspace-api	media: uapi: Fix [GS]_ROUTING ACTIVE flag value	2023-07-23 13:54:08 +02:00
virt	VFIO updates for v6.4-rc1	2023-05-02 11:56:43 -07:00
w1
watchdog
.gitignore
atomic_bitops.txt
atomic_t.txt
Changes
CodingStyle
conf.py	docs: turn off "smart quotes" in the HTML build	2023-04-20 17:53:18 -06:00
docutils.conf
dontdiff
index.rst
Kconfig
Makefile
memory-barriers.txt
SubmittingPatches
subsystem-apis.rst