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Lai Jiangshan 6ab8a4053f KVM: VMX: Avoid to rdmsrl(MSR_IA32_SYSENTER_ESP) 
The value of host MSR_IA32_SYSENTER_ESP is known to be constant for
each CPU: (cpu_entry_stack(cpu) + 1) when 32 bit syscall is enabled or
NULL is 32 bit syscall is not enabled.

So rdmsrl() can be avoided for the first case and both rdmsrl() and
vmcs_writel() can be avoided for the second case.

Signed-off-by: Lai Jiangshan <laijs@linux.alibaba.com>
Message-Id: <20211118110814.2568-3-jiangshanlai@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-12-08 04:25:04 -05:00
arch
KVM: VMX: Avoid to rdmsrl(MSR_IA32_SYSENTER_ESP)
2021-12-08 04:25:04 -05:00
block
blk-mq: don't insert FUA request with data into scheduler queue
2021-11-19 06:28:18 -07:00
certs
certs: Add support for using elliptic curve keys for signing modules
2021-08-23 19:55:42 +03:00
crypto
Merge tag 'zstd-for-linus-v5.16' of git://github.com/terrelln/linux
2021-11-13 15:32:30 -08:00
Documentation
Merge tag 'pm-5.16-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
2021-11-18 14:46:28 -08:00
drivers
Merge tag 'pinctrl-v5.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
2021-11-20 10:59:03 -08:00
fs
pstore/blk: Use "%lu" to format unsigned long
2021-11-21 09:44:19 -08:00
include
KVM: Add helpers to wake/query blocking vCPU
2021-12-08 04:24:54 -05:00
init
kbuild: Fix -Wimplicit-fallthrough=5 error for GCC 5.x and 6.x
2021-11-14 18:59:49 -08:00
ipc
shm: extend forced shm destroy to support objects from several IPC nses
2021-11-20 10:35:54 -08:00
kernel
Merge tag 'trace-v5.16-6' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
2021-11-19 13:50:48 -08:00
lib
kasan: test: silence intentional read overflow warnings
2021-11-20 10:35:54 -08:00
LICENSES
LICENSES/dual/CC-BY-4.0: Git rid of "smart quotes"
2021-07-15 06:31:24 -06:00
mm
kmap_local: don't assume kmap PTEs are linear arrays in memory
2021-11-20 10:35:54 -08:00
net
Merge tag 'net-5.16-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2021-11-18 12:54:24 -08:00
samples
Merge tag 's390-5.16-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
2021-11-20 10:55:50 -08:00
scripts
Merge tag 'coccinelle-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jlawall/linux
2021-11-13 10:45:17 -08:00
security
net,lsm,selinux: revert the security_sctp_assoc_established() hook
2021-11-14 12:21:53 +00:00
sound
Merge tag 'sound-fix-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
2021-11-12 12:17:30 -08:00
tools
KVM: SEV: Prohibit migration of a VM that has mirrors
2021-11-30 03:54:14 -05:00
usr
initramfs: Check timestamp to prevent broken cpio archive
2021-10-24 13:48:40 +09:00
virt
KVM: Add helpers to wake/query blocking vCPU
2021-12-08 04:24:54 -05:00
.clang-format
clang-format: Update with the latest for_each macro list
2021-05-12 23:32:39 +02:00
.cocciconfig
scripts: add Linux .cocciconfig for coccinelle
2016-07-22 12:13:39 +02:00
.get_maintainer.ignore
Opt out of scripts/get_maintainer.pl
2019-05-16 10:53:40 -07:00
.gitattributes
.gitattributes: use 'dts' diff driver for dts files
2019-12-04 19:44:11 -08:00
.gitignore
.gitignore: ignore only top-level modules.builtin
2021-05-02 00:43:35 +09:00
.mailmap
MAINTAINERS: update email address of Christian Borntraeger
2021-11-18 17:50:54 +01:00
COPYING
COPYING: state that all contributions really are covered by this file
2020-02-10 13:32:20 -08:00
CREDITS
MAINTAINERS: Move Daniel Drake to credits
2021-09-21 08:34:58 +03:00
Kbuild
kbuild: rename hostprogs-y/always to hostprogs/always-y
2020-02-04 01:53:07 +09:00
Kconfig
kbuild: ensure full rebuild when the compiler is updated
2020-05-12 13:28:33 +09:00
MAINTAINERS
Merge tag 's390-5.16-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
2021-11-20 10:55:50 -08:00
Makefile
Linux 5.16-rc2
2021-11-21 13:47:39 -08:00
README
Drop all 00-INDEX files from Documentation/
2018-09-09 15:08:58 -06:00

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.
Description
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