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Mark Brown 714f3cbd70 arm64/sme: Don't flush SVE register state when handling SME traps
Currently as part of handling a SME access trap we flush the SVE register
state. This is not needed and would corrupt register state if the task has
access to the SVE registers already. For non-streaming mode accesses the
required flushing will be done in the SVE access trap. For streaming
mode SVE register accesses the architecture guarantees that the register
state will be flushed when streaming mode is entered or exited so there is
no need for us to do so. Simply remove the register initialisation.

Fixes: 8bd7f91c03 ("arm64/sme: Implement traps and syscall handling for SME")
Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20220817182324.638214-5-broonie@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
2022-08-23 11:29:12 +01:00
Documentation arm64: errata: add detection for AMEVCNTR01 incrementing incorrectly 2022-08-23 11:06:48 +01:00
LICENSES
arch arm64/sme: Don't flush SVE register state when handling SME traps 2022-08-23 11:29:12 +01:00
block block-6.0-2022-08-12 2022-08-13 13:37:36 -07:00
certs
crypto
drivers xen: branch for v6.0-rc1b 2022-08-14 09:28:54 -07:00
fs take care to handle NULL ->proc_lseek() 2022-08-14 15:16:18 -04:00
include radix-tree: replace gfp.h inclusion with gfp_types.h 2022-08-14 13:31:03 -07:00
init arm64: fix rodata=full 2022-08-23 11:02:02 +01:00
io_uring io_uring-6.0-2022-08-13 2022-08-13 13:28:54 -07:00
ipc
kernel xen: branch for v6.0-rc1b 2022-08-14 09:28:54 -07:00
lib lib: remove lib/nodemask.c 2022-08-12 09:07:33 -07:00
mm
net
samples
scripts RISC-V Patches for the 5.20 Merge Window, Part 2 2022-08-12 18:39:43 -07:00
security
sound sound fixes for 6.0-rc1 2022-08-12 09:55:32 -07:00
tools perf tools changes for v6.0: 2nd batch 2022-08-14 09:22:11 -07:00
usr
virt
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS xen: branch for v6.0-rc1b 2022-08-14 09:28:54 -07:00
Makefile Linux 6.0-rc1 2022-08-14 15:50:18 -07:00
README

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.