linux_dsm_epyc7002/arch/x86/entry
Dominik Brodowski 2e3f0098bc x86/entry/64: Merge SAVE_C_REGS and SAVE_EXTRA_REGS, remove unused extensions
All current code paths call SAVE_C_REGS and then immediately
SAVE_EXTRA_REGS. Therefore, merge these two macros and order the MOV
sequeneces properly.

While at it, remove the macros to save all except specific registers,
as these macros have been unused for a long time.

Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: dan.j.williams@intel.com
Link: http://lkml.kernel.org/r/20180211104949.12992-2-linux@dominikbrodowski.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-02-13 09:04:52 +01:00
..
syscalls Merge branch 'x86/build' into x86/asm, to fix up conflicts 2017-11-07 10:54:30 +01:00
vdso Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-12-06 17:47:29 -08:00
vsyscall x86/pti: Map the vsyscall page if needed 2017-12-23 21:13:00 +01:00
calling.h x86/entry/64: Merge SAVE_C_REGS and SAVE_EXTRA_REGS, remove unused extensions 2018-02-13 09:04:52 +01:00
common.c x86/syscall: Sanitize syscall table de-references under speculation 2018-01-30 21:54:31 +01:00
entry_32.S x86/retpoline: Simplify vmexit_fill_RSB() 2018-01-27 19:10:45 +01:00
entry_64_compat.S x86/entry/64/compat: Clear registers for compat syscalls, to reduce speculation attack surface 2018-02-06 11:47:57 +01:00
entry_64.S x86/entry/64: Merge SAVE_C_REGS and SAVE_EXTRA_REGS, remove unused extensions 2018-02-13 09:04:52 +01:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
syscall_32.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
syscall_64.c x86/entry/64: Remove the SYSCALL64 fast path 2018-01-30 15:30:36 +01:00
thunk_32.S x86: move exports to actual definitions 2016-08-07 23:47:15 -04:00
thunk_64.S x86: move exports to actual definitions 2016-08-07 23:47:15 -04:00