WSL2-Linux-Kernel/Documentation
James Morse 8ddc58e0e3 arm64: errata: Remove AES hwcap for COMPAT tasks
commit 44b3834b2e upstream.

Cortex-A57 and Cortex-A72 have an erratum where an interrupt that
occurs between a pair of AES instructions in aarch32 mode may corrupt
the ELR. The task will subsequently produce the wrong AES result.

The AES instructions are part of the cryptographic extensions, which are
optional. User-space software will detect the support for these
instructions from the hwcaps. If the platform doesn't support these
instructions a software implementation should be used.

Remove the hwcap bits on affected parts to indicate user-space should
not use the AES instructions.

Acked-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: James Morse <james.morse@arm.com>
Link: https://lore.kernel.org/r/20220714161523.279570-3-james.morse@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
[florian: resolved conflicts in arch/arm64/tools/cpucaps and cpu_errata.c]
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-29 10:12:53 +02:00
..
ABI iio: ABI: Fix wrong format of differential capacitance channel ABI. 2022-10-26 12:35:02 +02:00
PCI pci-v5.15-changes 2021-09-07 19:13:42 -07:00
RCU
accounting sched/psi: report zeroes for CPU full at the system level 2022-06-09 10:22:48 +02:00
admin-guide x86/bugs: Add "unknown" reporting for MMIO Stale Data 2022-08-31 17:16:47 +02:00
arm Documentation: arm: marvell: Add 88F6825 model into list 2021-08-24 13:26:32 -06:00
arm64 arm64: errata: Remove AES hwcap for COMPAT tasks 2022-10-29 10:12:53 +02:00
block Documentation: block: blk-mq: Fix small typo in multi-queue docs 2021-08-24 13:30:00 -06:00
bpf libbpf: Rename libbpf documentation index file 2021-08-18 08:45:25 -07:00
cdrom
core-api Reinstate some of "swiotlb: rework "fix info leak with DMA_FROM_DEVICE"" 2022-04-08 14:24:13 +02:00
cpu-freq cpufreq: Remove ready() callback 2021-09-02 18:04:17 +02:00
crypto
dev-tools kfence: default to dynamic branch instead of static keys mode 2021-11-12 15:05:49 +01:00
devicetree ARM: dts: fix Moxa SDIO 'compatible', remove 'sdhci' misnomer 2022-10-12 09:53:27 +02:00
doc-guide
driver-api firmware: sysfb: Add sysfb_disable() helper function 2022-07-21 21:24:35 +02:00
fault-injection Char / Misc driver changes for 5.15-rc1 2021-09-01 08:35:06 -07:00
fb
features RISC-V Patches for the 5.15 Merge Window, Part 2 2021-09-11 14:29:42 -07:00
filesystems fs: record I_DIRTY_TIME even if inode already has I_DIRTY_INODE 2022-10-26 12:34:27 +02:00
firmware-guide Documentation: ACPI: EINJ: Fix obsolete example 2022-08-25 11:40:01 +02:00
firmware_class
fpga
gpu drm/i915/display: Move DRRS code its own file 2022-03-08 19:12:40 +01:00
hid
hwmon hwmon: (lm90) Add basic support for TI TMP461 2021-12-29 12:28:48 +01:00
i2c Documentation: i2c: add i2c-sysfs into index 2021-08-10 22:58:32 +02:00
ia64
ide
iio
infiniband
input Input: iforce - add support for Boeder Force Feedback Wheel 2022-09-20 12:39:45 +02:00
isdn
kbuild Merge branch 'akpm' (patches from Andrew) 2021-09-08 12:55:35 -07:00
kernel-hacking docs: kernel-hacking: Remove inappropriate text 2021-09-03 15:56:45 -06:00
leds Documentation: leds: standartizing LED names 2021-08-20 10:26:24 +02:00
litmus-tests
livepatch
locking Documentation/locking/locktypes: Update migrate_disable() bits. 2021-12-14 10:57:18 +01:00
m68k
maintainer
mhi
mips
misc-devices
netlabel
networking Documentation: fix sctp_wmem in ip-sysctl.rst 2022-08-03 12:03:49 +02:00
nios2
nvdimm
openrisc
parisc
pcmcia
power Documentation: power: include kernel-doc in Energy Model doc 2021-09-07 21:17:28 +02:00
powerpc powerpc/doc: Fix htmldocs errors 2021-08-27 00:56:34 +10:00
process docs: update mediator information in CoC docs 2022-10-12 09:53:26 +02:00
riscv
s390
scheduler
scsi
security
sh
sound ALSA: usb-audio: Add quirk bits for enabling/disabling generic implicit fb 2022-06-09 10:22:41 +02:00
sparc
sphinx docs: sphinx/requirements: Limit jinja2<3.1 2022-04-08 14:22:49 +02:00
sphinx-static
spi
staging
target
timers
trace tracing: Add ustring operation to filtering string pointers 2022-03-08 19:12:33 +01:00
translations Merge branch 'gcc-min-version-5.1' (make gcc-5.1 the minimum version) 2021-09-13 10:43:04 -07:00
tty/device_drivers serial: 8250: Add proper clock handling for OxSemi PCIe devices 2022-08-17 14:24:23 +02:00
usb docs: usb: fix malformed table 2021-08-05 12:31:51 +02:00
userspace-api media: hevc: Embedded indexes in RPS 2022-08-17 14:23:31 +02:00
virt ARM: 2021-09-07 13:40:51 -07:00
vm Merge branch 'akpm' (patches from Andrew) 2021-09-08 12:55:35 -07:00
w1
watchdog
x86 Another collection of documentation patches, mostly fixes but also includes 2021-09-08 16:28:14 -07:00
xtensa
.gitignore
COPYING-logo
Changes
CodingStyle
Kconfig
Makefile
SubmittingPatches
arch.rst
asm-annotations.rst
atomic_bitops.txt locking/atomic: Make test_and_*_bit() ordered on failure 2022-08-25 11:39:54 +02:00
atomic_t.txt Documentation/atomic_t: Document forward progress expectations 2021-08-04 15:16:47 +02:00
conf.py docs/conf.py: Cope with removal of language=None in Sphinx 5.0.0 2022-06-09 10:23:30 +02:00
docutils.conf
dontdiff
index.rst
logo.gif
memory-barriers.txt
watch_queue.rst