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Filename Latest commit message Latest commit date
Jeremy Linton 526e065dbc arm64: add sysfs vulnerability show for speculative store bypass
Return status based on ssbd_state and __ssb_safe. If the
mitigation is disabled, or the firmware isn't responding then
return the expected machine state based on a whitelist of known
good cores.

Given a heterogeneous machine, the overall machine vulnerability
defaults to safe but is reset to unsafe when we miss the whitelist
and the firmware doesn't explicitly tell us the core is safe.
In order to make that work we delay transitioning to vulnerable
until we know the firmware isn't responding to avoid a case
where we miss the whitelist, but the firmware goes ahead and
reports the core is not vulnerable. If all the cores in the
machine have SSBS, then __ssb_safe will remain true.

Tested-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2019-05-01 14:47:55 +01:00
arch arm64: add sysfs vulnerability show for speculative store bypass 2019-05-01 14:47:55 +01:00
block blk-mq: fix sbitmap ws_active for shared tags 2019-03-25 13:05:47 -06:00
certs
crypto lib/lzo: separate lzo-rle from lzo 2019-03-07 18:32:03 -08:00
Documentation arm64: Provide a command line to disable spectre_v2 mitigation 2019-04-26 16:26:42 +01:00
drivers dmaengine-5.10-rc3 2019-03-31 07:42:39 -07:00
fs Merge branch 'akpm' (patches from Andrew) 2019-03-29 16:02:28 -07:00
include Merge branch 'core/speculation' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into for-next/mitigations 2019-04-26 13:32:20 +01:00
init init/main: add checks for the return value of memblock_alloc*() 2019-03-12 10:04:02 -07:00
ipc Merge branch 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2019-03-12 14:08:19 -07:00
kernel Merge branch 'core/speculation' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into for-next/mitigations 2019-04-26 13:32:20 +01:00
lib for-linus-20190329 2019-03-29 14:43:07 -07:00
LICENSES
mm mm/migrate.c: add missing flush_dcache_page for non-mapped page migrate 2019-03-29 10:01:37 -07:00
net A patch to avoid choking on multipage bvecs in the messenger and 2019-03-29 14:41:09 -07:00
samples Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-03-11 08:54:01 -07:00
scripts Merge branch 'akpm' (patches from Andrew) 2019-03-29 16:02:28 -07:00
security LSM: Revive CONFIG_DEFAULT_SECURITY_* for "make oldconfig" 2019-03-29 14:08:49 -07:00
sound sound fixes for 5.1-rc3 2019-03-29 14:53:33 -07:00
tools A collection of x86 and ARM bugfixes, and some improvements to documentation. 2019-03-31 08:55:59 -07:00
usr
virt KVM/ARM fixes for 5.1 2019-03-28 19:07:30 +01:00
.clang-format Merge branch 'work.iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2019-03-12 13:43:42 -07:00
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap mailmap: add Changbin Du 2019-03-29 10:01:37 -07:00
COPYING
CREDITS
Kbuild Kbuild updates for v5.1 2019-03-10 17:48:21 -07:00
Kconfig
MAINTAINERS Merge branch 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-03-31 07:48:58 -07:00
Makefile Linux 5.1-rc3 2019-03-31 14:39:29 -07:00
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.