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Wanpeng Li d5361678e6 KVM: X86: Micro-optimize IPI fastpath delay 
This patch optimizes the virtual IPI fastpath emulation sequence:

write ICR2                          send virtual IPI
read ICR2                           write ICR2
send virtual IPI         ==>        write ICR
write ICR

We can observe ~0.67% performance improvement for IPI microbenchmark
(https://lore.kernel.org/kvm/20171219085010.4081-1-ynorov@caviumnetworks.com/)
on Skylake server.

Signed-off-by: Wanpeng Li <wanpengli@tencent.com>
Message-Id: <1585189202-1708-4-git-send-email-wanpengli@tencent.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-03-26 05:58:26 -04:00
arch
KVM: X86: Micro-optimize IPI fastpath delay
2020-03-26 05:58:26 -04:00
block
Merge tag 'block-5.6-2020-02-05' of git://git.kernel.dk/linux-block
2020-02-06 06:15:23 +00:00
certs
certs: Add wrapper function to check blacklisted binary hash
2019-11-12 12:25:50 +11:00
crypto
Merge tag 's390-5.6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
2020-02-15 13:10:38 -08:00
Documentation
Merge tag 'kvm-s390-next-5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD
2020-03-16 18:19:34 +01:00
drivers
Merge tag 'for-linus-5.6-1' of https://github.com/cminyard/linux-ipmi
2020-02-16 13:05:46 -08:00
fs
Merge tag 'for-5.6-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
2020-02-16 11:43:45 -08:00
include
Merge tag 'kvm-s390-next-5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD
2020-03-16 18:19:34 +01:00
init
Merge tag 'trace-v5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
2020-02-11 16:39:18 -08:00
ipc
proc: convert everything to "struct proc_ops"
2020-02-04 03:05:26 +00:00
kernel
Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2020-02-15 12:51:22 -08:00
lib
Merge tag 'trace-v5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
2020-02-11 16:39:18 -08:00
LICENSES
LICENSES: Rename other to deprecated
2019-05-03 06:34:32 -06:00
mm
Merge branch 'merge.nfs-fs_parse.1' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2020-02-08 13:26:41 -08:00
net
Merge tag 'nfs-for-5.6-2' of git://git.linux-nfs.org/projects/anna/linux-nfs
2020-02-14 14:46:11 -08:00
samples
Merge tag 'kbuild-v5.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
2020-02-09 16:05:50 -08:00
scripts
kbuild: fix mismatch between .version and include/generated/compile.h
2020-02-11 05:18:40 +09:00
security
Merge tag 'selinux-pr-20200210' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux
2020-02-10 16:51:35 -08:00
sound
ALSA: pcm: Fix double hw_free calls
2020-02-13 16:30:22 +01:00
tools
tools/kvm_stat: add command line switch '-c' to log in csv format
2020-03-23 15:44:21 -04:00
usr
Merge tag 'kbuild-v5.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
2020-02-09 16:05:50 -08:00
virt
KVM: Drop largepages_enabled and its accessor/mutator
2020-03-16 17:58:42 +01:00
.clang-format
clang-format: Update with the latest for_each macro list
2019-08-31 10:00:51 +02:00
.cocciconfig
…
.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
modpost: dump missing namespaces into a single modules.nsdeps file
2019-11-11 20:10:01 +09:00
.mailmap
Merge tag 'docs-5.6-2' of git://git.lwn.net/linux
2020-02-07 13:03:10 -08:00
COPYING
COPYING: use the new text with points to the license files
2018-03-23 12:41:45 -06:00
CREDITS
open: introduce openat2(2) syscall
2020-01-18 09:19:18 -05:00
Kbuild
kbuild: rename hostprogs-y/always to hostprogs/always-y
2020-02-04 01:53:07 +09:00
Kconfig
docs: kbuild: convert docs to ReST and rename to *.rst
2019-06-14 14:21:21 -06:00
MAINTAINERS
DOCUMENTATION: Protected virtual machine introduction and IPL
2020-02-27 19:47:12 +01:00
Makefile
Linux 5.6-rc2
2020-02-16 13:16:59 -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.
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