WSL2-Linux-Kernel/scripts
Linus Torvalds 4b78317679 Merge branch 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull STIBP fallout fixes from Thomas Gleixner:
 "The performance destruction department finally got it's act together
  and came up with a cure for the STIPB regression:

   - Provide a command line option to control the spectre v2 user space
     mitigations. Default is either seccomp or prctl (if seccomp is
     disabled in Kconfig). prctl allows mitigation opt-in, seccomp
     enables the migitation for sandboxed processes.

   - Rework the code to handle the conditional STIBP/IBPB control and
     remove the now unused ptrace_may_access_sched() optimization
     attempt

   - Disable STIBP automatically when SMT is disabled

   - Optimize the switch_to() logic to avoid MSR writes and invocations
     of __switch_to_xtra().

   - Make the asynchronous speculation TIF updates synchronous to
     prevent stale mitigation state.

  As a general cleanup this also makes retpoline directly depend on
  compiler support and removes the 'minimal retpoline' option which just
  pretended to provide some form of security while providing none"

* 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (31 commits)
  x86/speculation: Provide IBPB always command line options
  x86/speculation: Add seccomp Spectre v2 user space protection mode
  x86/speculation: Enable prctl mode for spectre_v2_user
  x86/speculation: Add prctl() control for indirect branch speculation
  x86/speculation: Prepare arch_smt_update() for PRCTL mode
  x86/speculation: Prevent stale SPEC_CTRL msr content
  x86/speculation: Split out TIF update
  ptrace: Remove unused ptrace_may_access_sched() and MODE_IBRS
  x86/speculation: Prepare for conditional IBPB in switch_mm()
  x86/speculation: Avoid __switch_to_xtra() calls
  x86/process: Consolidate and simplify switch_to_xtra() code
  x86/speculation: Prepare for per task indirect branch speculation control
  x86/speculation: Add command line control for indirect branch speculation
  x86/speculation: Unify conditional spectre v2 print functions
  x86/speculataion: Mark command line parser data __initdata
  x86/speculation: Mark string arrays const correctly
  x86/speculation: Reorder the spec_v2 code
  x86/l1tf: Show actual SMT state
  x86/speculation: Rework SMT state change
  sched/smt: Expose sched_smt_present static key
  ...
2018-12-01 12:35:48 -08:00
..
basic kbuild: move bin2c back to scripts/ from scripts/basic/ 2018-07-18 01:18:05 +09:00
coccinelle Coccinelle: remove pci_alloc_consistent semantic to detect in zalloc-simple.cocci 2018-08-22 23:21:43 +09:00
dtc Merge branch 'all-dtbs' into dt/next 2018-10-04 14:16:15 -05:00
gcc-plugins stackleak: Allow runtime disabling of kernel stack erasing 2018-09-04 10:35:48 -07:00
gdb
genksyms
kconfig kconfig: merge_config: avoid false positive matches from comment lines 2018-11-11 23:04:51 +09:00
ksymoops
mod Kbuild updates for v4.20 2018-10-28 13:22:35 -07:00
package builddeb: Fix inclusion of dtbs in debian package 2018-11-11 23:04:53 +09:00
selinux
tracing scripts: Add Python 3 support to tracing/draw_functrace.py 2018-07-29 11:08:38 +09:00
.gitignore kbuild: move bin2c back to scripts/ from scripts/basic/ 2018-07-18 01:18:05 +09:00
Kbuild.include kbuild: remove cc-name variable 2018-11-02 22:49:01 +09:00
Kconfig.include gcc-plugins: test plugin support in Kconfig and clean up Makefile 2018-06-11 09:16:22 +09:00
Lindent
Makefile kbuild: consolidate Devicetree dtb build rules 2018-10-02 09:23:21 -05:00
Makefile.asm-generic
Makefile.build x86/retpoline: Make CONFIG_RETPOLINE depend on compiler support 2018-11-28 11:57:03 +01:00
Makefile.clean kbuild: remove deprecated host-progs variable 2018-08-09 21:51:17 +09:00
Makefile.dtbinst
Makefile.extrawarn Kbuild updates for v4.20 (2nd) 2018-11-03 10:47:33 -07:00
Makefile.gcc-plugins gcc-plugins: Add STACKLEAK plugin for tracking the kernel stack 2018-09-04 10:35:47 -07:00
Makefile.headersinst
Makefile.host kbuild: Rename HOST_LOADLIBES to KBUILD_HOSTLDLIBS 2018-07-18 01:18:05 +09:00
Makefile.kasan
Makefile.kcov kcov: test compiler capability in Kconfig and correct dependency 2018-06-11 09:14:08 +09:00
Makefile.lib kbuild: consolidate Devicetree dtb build rules 2018-10-02 09:23:21 -05:00
Makefile.modbuiltin Kbuild: Makefile.modbuiltin: include auto.conf and tristate.conf mandatory 2018-08-03 00:47:00 +09:00
Makefile.modinst kbuild: remove duplicated comments about PHONY 2018-07-06 22:04:03 +09:00
Makefile.modpost kbuild: rename LDFLAGS to KBUILD_LDFLAGS 2018-08-24 08:22:08 +09:00
Makefile.modsign kbuild: remove duplicated comments about PHONY 2018-07-06 22:04:03 +09:00
Makefile.ubsan lib/ubsan: remove null-pointer checks 2018-08-10 20:19:58 -07:00
adjust_autoksyms.sh
asn1_compiler.c ASN.1: Remove unnecessary shadowed local variable 2018-10-29 00:19:41 +09:00
bin2c.c kbuild: move bin2c back to scripts/ from scripts/basic/ 2018-07-18 01:18:05 +09:00
bloat-o-meter
bootgraph.pl
bpf_helpers_doc.py
cc-can-link.sh bpfilter: check compiler capability in Kconfig 2018-06-28 13:36:39 +09:00
check_extable.sh
checkincludes.pl
checkkconfigsymbols.py
checkpatch.pl checkpatch: remove GCC_BINARY_CONSTANT warning 2018-10-31 08:54:13 -07:00
checkstack.pl scripts: Add ppc64le support for checkstack.pl 2018-07-02 23:54:28 +10:00
checksyscalls.sh
checkversion.pl
clang-version.sh kbuild: Add a space after `!` to prevent parsing as file pattern 2018-08-22 23:21:40 +09:00
cleanfile
cleanpatch
coccicheck coccicheck: return proper error code on fail 2018-08-14 08:58:56 +09:00
config
conmakehash.c
const_structs.checkpatch
decode_stacktrace.sh
decodecode
depmod.sh kbuild: modules_install: warn when missing System.map file 2018-09-09 09:14:07 +09:00
diffconfig
documentation-file-ref-check scripts/documentation-file-ref-check: ignore sched-pelt false positive 2018-07-02 11:25:00 -06:00
export_report.pl
extract-cert.c
extract-ikconfig
extract-module-sig.pl
extract-sys-certs.pl
extract-vmlinux extract-vmlinux: Check for uncompressed image as fallback 2018-10-17 08:18:01 +02:00
extract_xc3028.pl
faddr2line scripts/faddr2line: fix location of start_kernel in comment 2018-11-18 10:15:09 -08:00
file-size.sh
find-unused-docs.sh
gcc-goto.sh
gcc-ld
gcc-plugin.sh
gcc-version.sh
gcc-x86_32-has-stack-protector.sh stack-protector: test compiler capability in Kconfig and drop AUTO mode 2018-06-08 18:56:00 +09:00
gcc-x86_64-has-stack-protector.sh stack-protector: Fix test with 32-bit userland and CONFIG_64BIT=y 2018-06-25 23:21:13 +09:00
get_dvb_firmware
get_maintainer.pl get_maintainer: allow option --mpath <directory> to read all files in <directory> 2018-08-22 10:52:48 -07:00
gfp-translate
headerdep.pl
headers.sh
headers_check.pl
headers_install.sh
insert-sys-cert.c
kallsyms.c kallsyms: remove left-over Blackfin code 2018-09-10 22:54:33 +09:00
kernel-doc kernel-doc: fix declaration type determination 2018-10-18 12:20:35 -06:00
ld-version.sh
leaking_addresses.pl
link-vmlinux.sh kbuild: rename LDFLAGS to KBUILD_LDFLAGS 2018-08-24 08:22:08 +09:00
makelst
markup_oops.pl
mkcompile_h
mkmakefile kbuild: simplify command line creation in scripts/mkmakefile 2018-10-04 22:56:02 +09:00
mksysmap
mkuboot.sh
module-common.lds
namespace.pl
objdiff
parse-maintainers.pl
patch-kernel
pnmtologo.c
profile2linkerlist.pl
prune-kernel
recordmcount.c
recordmcount.h
recordmcount.pl nds32/ftrace: Add RECORD_MCOUNT support 2018-09-04 14:45:18 +08:00
setlocalversion Revert "scripts/setlocalversion: git: Make -dirty check more robust" 2018-11-11 23:04:52 +09:00
show_delta
sign-file.c
sortextable.c
sortextable.h
spdxcheck.py scripts/spdxcheck.py: make python3 compliant 2018-11-18 10:15:10 -08:00
spelling.txt treewide: correct "differenciate" and "instanciate" typos 2018-08-23 18:48:43 -07:00
sphinx-pre-install
split-man.pl
stackdelta
stackusage
subarch.include selftests: add headers_install to lib.mk 2018-09-05 08:12:09 -06:00
tags.sh scripts/tags.sh: add DECLARE_HASHTABLE() 2018-10-26 16:25:18 -07:00
unifdef.c unifdef: use memcpy instead of strncpy 2018-11-30 14:45:01 -08:00
ver_linux ver_linux: Do not check for ver_linux pattern in version function 2018-07-07 17:44:52 +02:00
xen-hypercalls.sh
xz_wrap.sh