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Filename Latest commit message Latest commit date
Doug Berger 87d9d4cdb1 ARM: 8937/1: spectre-v2: remove Brahma-B53 from hardening
[ Upstream commit 4ae5061a19b550dfe25397843427ed2ebab16b16 ]

When the default processor handling was added to the function
cpu_v7_spectre_init() it only excluded other ARM implemented processor
cores. The Broadcom Brahma B53 core is not implemented by ARM so it
ended up falling through into the set of processors that attempt to use
the ARM_SMCCC_ARCH_WORKAROUND_1 service to harden the branch predictor.

Since this workaround is not necessary for the Brahma-B53 this commit
explicitly checks for it and prevents it from applying a branch
predictor hardening workaround.

Fixes: 10115105cb ("ARM: spectre-v2: add firmware based hardening")
Signed-off-by: Doug Berger <opendmb@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-01-04 19:18:12 +01:00
arch ARM: 8937/1: spectre-v2: remove Brahma-B53 from hardening 2020-01-04 19:18:12 +01:00
block iocost: over-budget forced IOs should schedule async delay 2019-12-31 16:46:19 +01:00
certs
crypto KEYS: asymmetric: return ENOMEM if akcipher_request_alloc() fails 2019-12-31 16:46:07 +01:00
Documentation dt-bindings: Improve validation build error handling 2020-01-04 19:18:11 +01:00
drivers HID: i2c-hid: fix no irq after reset on raydium 3118 2020-01-04 19:18:12 +01:00
fs iomap: fix return value of iomap_dio_bio_actor on 32bit systems 2020-01-04 19:17:31 +01:00
include fs/quota: handle overflows of sysctl fs.quota.* and report as unsigned long 2020-01-04 19:17:25 +01:00
init
ipc
kernel dma-mapping: fix handling of dma-ranges for reserved memory (again) 2020-01-04 19:17:00 +01:00
lib
LICENSES
mm mm: vmscan: protect shrinker idr replace with CONFIG_MEMCG 2019-12-31 16:46:07 +01:00
net can: j1939: j1939_sk_bind(): take priv after lock is held 2019-12-31 16:45:56 +01:00
samples
scripts dtc: Use pkg-config to locate libyaml 2020-01-04 19:17:09 +01:00
security
sound ASoC: soc-pcm: check symmetry before hw_params 2019-12-31 16:45:42 +01:00
tools selftests/powerpc: Skip tm-signal-sigreturn-nt if TM not available 2020-01-04 19:17:10 +01:00
usr
virt KVM: arm/arm64: Properly handle faulting of device mappings 2019-12-31 16:46:24 +01:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
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Kbuild
Kconfig
MAINTAINERS
Makefile Linux 5.4.7 2019-12-31 16:46:36 +01:00
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.