Linus Torvalds 64ad946152 - Get rid of all the .fixup sections because this generates ... misleading/wrong stacktraces and confuse RELIABLE_STACKTRACE and LIVEPATCH as the backtrace misses the function which is being fixed up. - Add Straight Light Speculation mitigation support which uses a new compiler switch -mharden-sls= which sticks an INT3 after a RET or an indirect branch in order to block speculation after them. Reportedly, CPUs do speculate behind such insns. - The usual set of cleanups and improvements -----BEGIN PGP SIGNATURE----- iQIyBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmHfKA0ACgkQEsHwGGHe VUqLJg/2I2X2xXr5filJVaK+sQgmvDzk67DKnbxRBW2xcPF+B5sSW5yhe3G5UPW7 SJVdhQ3gHcTiliGGlBf/VE7KXbqxFN0vO4/VFHZm78r43g7OrXTxz6WXXQRJ1n67 U3YwRH3b6cqXZNFMs+X4bJt6qsGJM1kdTTZ2as4aERnaFr5AOAfQvfKbyhxLe/XA 3SakfYISVKCBQ2RkTfpMpwmqlsatGFhTC5IrvuDQ83dDsM7O+Dx1J6Gu3fwjKmie iVzPOjCh+xTpZQp/SIZmt7MzoduZvpSym4YVyHvEnMiexQT4AmyaRthWqrhnEXY/ qOvj8/XIqxmix8EaooGqRIK0Y2ZegxkPckNFzaeC3lsWohwMIGIhNXwHNEeuhNyH yvNGAW9Cq6NeDRgz5MRUXcimYw4P4oQKYLObS1WqFZhNMqm4sNtoEAYpai/lPYfs zUDckgXF2AoPOsSqy3hFAVaGovAgzfDaJVzkt0Lk4kzzjX2WQiNLhmiior460w+K 0l2Iej58IajSp3MkWmFH368Jo8YfUVmkjbbpsmjsBppA08e1xamJB7RmswI/Ezj6 s5re6UioCD+UYdjWx41kgbvYdvIkkZ2RLrktoZd/hqHrOLWEIiwEbyFO2nRFJIAh YjvPkB1p7iNuAeYcP1x9Ft9GNYVIsUlJ+hK86wtFCqy+abV+zQ== =R52z -----END PGP SIGNATURE----- Merge tag 'x86_core_for_v5.17_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 core updates from Borislav Petkov: - Get rid of all the .fixup sections because this generates misleading/wrong stacktraces and confuse RELIABLE_STACKTRACE and LIVEPATCH as the backtrace misses the function which is being fixed up. - Add Straight Line Speculation mitigation support which uses a new compiler switch -mharden-sls= which sticks an INT3 after a RET or an indirect branch in order to block speculation after them. Reportedly, CPUs do speculate behind such insns. - The usual set of cleanups and improvements * tag 'x86_core_for_v5.17_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (32 commits) x86/entry_32: Fix segment exceptions objtool: Remove .fixup handling x86: Remove .fixup section x86/word-at-a-time: Remove .fixup usage x86/usercopy: Remove .fixup usage x86/usercopy_32: Simplify __copy_user_intel_nocache() x86/sgx: Remove .fixup usage x86/checksum_32: Remove .fixup usage x86/vmx: Remove .fixup usage x86/kvm: Remove .fixup usage x86/segment: Remove .fixup usage x86/fpu: Remove .fixup usage x86/xen: Remove .fixup usage x86/uaccess: Remove .fixup usage x86/futex: Remove .fixup usage x86/msr: Remove .fixup usage x86/extable: Extend extable functionality x86/entry_32: Remove .fixup usage x86/entry_64: Remove .fixup usage x86/copy_mc_64: Remove .fixup usage ...		2022-01-12 16:31:19 -08:00
..
asm	um: remove set_fs	2021-12-22 17:56:56 +01:00
os-Linux	um: stop polluting the namespace with registers.h contents	2021-12-21 21:31:35 +01:00
shared/sysdep	um: move amd64 variant of mmap(2) to arch/x86/um/syscalls_64.c	2021-12-21 21:30:44 +01:00
vdso	kbuild: remove cc-option test of -fno-stack-protector	2020-07-07 11:13:10 +09:00
bugs_32.c	um: get rid of pointless include "..." where include <...> will do	2012-10-09 22:28:45 +02:00
bugs_64.c	um: get rid of pointless include "..." where include <...> will do	2012-10-09 22:28:45 +02:00
checksum_32.S	x86: Prepare asm files for straight-line-speculation	2021-12-08 12:25:37 +01:00
delay.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
elfcore.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
fault.c	um: don't compare a pointer to 0	2012-12-20 11:49:39 -08:00
Kconfig	kbuild: use KBUILD_DEFCONFIG as the fallback for DEFCONFIG_LIST	2020-03-03 20:49:21 +09:00
ldt.c	x86/entry: Use SYSCALL_DEFINE() macros for sys_modify_ldt()	2017-10-20 10:37:33 +02:00
Makefile	uml: x86: add FORCE to user_constants.h	2021-12-21 21:13:44 +01:00
mem_32.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
mem_64.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
ptrace_32.c	um: stop polluting the namespace with registers.h contents	2021-12-21 21:31:35 +01:00
ptrace_64.c	um: stop polluting the namespace with registers.h contents	2021-12-21 21:31:35 +01:00
ptrace_user.c	um: get rid of pointless include "..." where include <...> will do	2012-10-09 22:28:45 +02:00
setjmp_32.S	x86: Prepare asm files for straight-line-speculation	2021-12-08 12:25:37 +01:00
setjmp_64.S	x86: Prepare asm files for straight-line-speculation	2021-12-08 12:25:37 +01:00
signal.c	um: stop polluting the namespace with registers.h contents	2021-12-21 21:31:35 +01:00
stub_32.S	um: rework userspace stubs to not hard-code stub location	2021-02-12 21:35:02 +01:00
stub_64.S	um: rework userspace stubs to not hard-code stub location	2021-02-12 21:35:02 +01:00
stub_segv.c	um: fix stub location calculation	2021-08-26 22:28:03 +02:00
sys_call_table_32.c	uml: trim unused junk from arch/x86/um/sys_call_table_*.c	2021-12-21 21:30:44 +01:00
sys_call_table_64.c	um: move amd64 variant of mmap(2) to arch/x86/um/syscalls_64.c	2021-12-21 21:30:44 +01:00
syscalls_32.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
syscalls_64.c	um: stop polluting the namespace with registers.h contents	2021-12-21 21:31:35 +01:00
sysrq_32.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/debug.h>	2017-03-02 08:42:34 +01:00
sysrq_64.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/debug.h>	2017-03-02 08:42:34 +01:00
tls_32.c	um: Implement copy_thread_tls	2020-01-07 13:31:29 +01:00
tls_64.c	um: Implement copy_thread_tls	2020-01-07 13:31:29 +01:00
user-offsets.c	um: Some fixes to build UML with musl	2020-10-11 23:13:06 +02:00