Rob Herring 6e3ae2927b arm64: errata: Add Cortex-A520 speculative unprivileged load workaround ... commit 471470bc7052d28ce125901877dd10e4c048e513 upstream. Implement the workaround for ARM Cortex-A520 erratum 2966298. On an affected Cortex-A520 core, a speculatively executed unprivileged load might leak data from a privileged load via a cache side channel. The issue only exists for loads within a translation regime with the same translation (e.g. same ASID and VMID). Therefore, the issue only affects the return to EL0. The workaround is to execute a TLBI before returning to EL0 after all loads of privileged data. A non-shareable TLBI to any address is sufficient. The workaround isn't necessary if page table isolation (KPTI) is enabled, but for simplicity it will be. Page table isolation should normally be disabled for Cortex-A520 as it supports the CSV3 feature and the E0PD feature (used when KASLR is enabled). Cc: stable@vger.kernel.org Signed-off-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20230921194156.1050055-2-robh@kernel.org Signed-off-by: Will Deacon <will@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2023-10-10 22:00:39 +02:00
..
ABI	platform/chrome: chromeos_acpi: print hex string for ACPI_TYPE_BUFFER	2023-09-13 09:43:03 +02:00
accounting	sched/psi: Allow unprivileged polling of N*2s period	2023-07-27 08:50:38 +02:00
admin-guide	mm, memcg: reconsider kmem.limit_in_bytes deprecation	2023-10-06 14:57:06 +02:00
arc
arm	EFI updates for v6.1	2022-10-09 08:56:54 -07:00
arm64	arm64: errata: Add Cortex-A520 speculative unprivileged load workaround	2023-10-10 22:00:39 +02:00
block	blk-crypto: don't use struct request_queue for public interfaces	2023-05-11 23:03:00 +09:00
bpf	bpf, docs: Fix modulo zero, division by zero, overflow, and underflow	2023-03-10 09:33:50 +01:00
cdrom
core-api	overflow: Fix kern-doc markup for functions	2022-10-25 14:57:42 -07:00
cpu-freq
crypto
dev-tools	docs/scripts/gdb: add necessary make scripts_gdb step	2023-03-10 09:33:58 +01:00
devicetree	dt-bindings: clock: xlnx,versal-clk: drop select:false	2023-09-19 12:27:57 +02:00
doc-guide	Rust introduction for v6.1-rc1	2022-10-03 16:39:37 -07:00
driver-api	spi: Update reference to struct spi_controller	2022-12-31 13:32:06 +01:00
fault-injection	lkdtm: replace ll_rw_block with submit_bh	2023-07-19 16:21:53 +02:00
fb	Documentation: fb: udlfb: clean up text and formatting	2022-09-27 13:21:44 -06:00
features
filesystems	fs: Lock moved directories	2023-07-19 16:22:12 +02:00
firmware_class
firmware-guide	Merge branches 'acpi-misc', 'acpi-tools' and 'acpi-docs'	2022-10-03 20:03:49 +02:00
fpga
gpu	drm/vmwgfx: Remove vmwgfx_hashtab	2023-01-18 11:58:28 +01:00
hid
hwmon	hwmon: (ftsteutates) Fix scaling of measurements	2023-03-10 09:33:10 +01:00
i2c	docs: i2c: slave-interface: return errno when handle I2C_SLAVE_WRITE_REQUESTED	2022-09-28 21:41:59 +02:00
ia64
iio	docs: iio: add documentation for BNO055 driver	2022-09-21 18:42:56 +01:00
images
infiniband
input	Merge branch 'next' into for-linus	2022-10-09 22:30:23 -07:00
isdn
kbuild	Documentation: kbuild: Add description of git for reproducible builds	2022-10-28 00:16:29 +09:00
kernel-hacking	Documentation: Fix spelling mistake in hacking.rst	2022-10-24 11:27:51 -06:00
leds
litmus-tests
livepatch
locking	Remove duplicate words inside documentation	2022-09-27 13:21:43 -06:00
loongarch	docs/LoongArch: Add booting description	2022-12-08 14:59:15 +08:00
m68k
maintainer
mhi
mips
misc-devices
mm	mm: multi-gen LRU: rename lrugen->lists[] to lrugen->folios[]	2023-09-19 12:27:54 +02:00
netlabel
networking	net: change accept_ra_min_rtr_lft to affect all RA lifetimes	2023-10-10 22:00:37 +02:00
nios2
nvdimm
openrisc
parisc
PCI
pcmcia
peci
power
powerpc	powerpc/64s: update cpu selection options	2022-09-28 19:22:10 +10:00
process	docs: Set minimal gtags / GNU GLOBAL version to 6.6.5	2023-07-05 18:27:38 +01:00
RCU	There's not a huge amount of activity in the docs tree this time around,	2022-10-03 10:23:32 -07:00
riscv	riscv: Move early dtb mapping into the fixmap region	2023-05-01 08:26:28 +09:00
rust	x86: enable initial Rust support	2022-09-28 09:02:45 +02:00
s390	vfio/mdev: embedd struct mdev_parent in the parent data structure	2022-10-04 12:06:58 -06:00
scheduler	docs: scheduler: Update new path for the sysctl knobs	2022-09-27 13:21:42 -06:00
scsi	scsi: core: Fix the scsi_set_resid() documentation	2023-09-13 09:43:00 +02:00
security	KEYS: encrypted: fix key instantiation with user-provided data	2022-12-21 17:48:11 +01:00
sh
sound	ALSA: hda/sigmatel: add pin overrides for Intel DP45SG motherboard	2023-04-20 12:35:05 +02:00
sparc
sphinx	docs: Fix the docs build with Sphinx 6.0	2023-01-18 11:58:10 +01:00
sphinx-static
spi
staging	docs: put atomic*.txt and memory-barriers.txt into the core-api book	2022-09-29 12:55:06 -06:00
target
timers
tools	A handful of relatively simple documentation fixes, plus a set of patches	2022-10-13 10:58:32 -07:00
trace	tracing/probes: Add symstr type for dynamic events	2023-08-03 10:23:54 +02:00
translations	docs/zh_CN: Add LoongArch booting description's translation	2022-12-08 15:03:14 +08:00
usb
userspace-api	media: uapi: HEVC: Add num_delta_pocs_of_ref_rps_idx field	2023-09-13 09:42:20 +02:00
virt	KVM: s390: disable migration mode when dirty tracking is disabled	2023-03-10 09:34:05 +01:00
w1	Documentation: W1: minor typo corrections	2022-09-27 13:21:44 -06:00
watchdog
x86	x86/sev: Add SEV-SNP guest feature negotiation support	2023-02-01 08:34:50 +01:00
xtensa
.gitignore
arch.rst
atomic_bitops.txt
atomic_t.txt
Changes
CodingStyle
conf.py	There's not a huge amount of activity in the docs tree this time around,	2022-10-03 10:23:32 -07:00
docutils.conf
dontdiff
index.rst	Rust introduction for v6.1-rc1	2022-10-03 16:39:37 -07:00
Kconfig
Makefile
memory-barriers.txt
SubmittingPatches
subsystem-apis.rst	docs: Rewrite the front page	2022-09-29 12:55:06 -06:00