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Message-ID: <YNl4piFBCfvmGgEK@gmail.com>
Date: Mon, 28 Jun 2021 09:22:14 +0200
From: Ingo Molnar <mingo@...nel.org>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: linux-kernel@...r.kernel.org, "H. Peter Anvin" <hpa@...or.com>,
Thomas Gleixner <tglx@...utronix.de>,
Borislav Petkov <bp@...en8.de>,
Peter Zijlstra <peterz@...radead.org>,
Andrew Morton <akpm@...ux-foundation.org>
Subject: [GIT PULL] x86/asm changes for v5.14
Linus,
Please pull the latest x86/asm git tree from:
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86-asm-2021-06-28
# HEAD: 41f45fb045bcc20e71eb705b361356e715682162 x86/asm: Make <asm/asm.h> valid on cross-builds as well
Changes for this cycle:
- Micro-optimize and standardize the do_syscall_64() calling convention
- Make syscall entry flags clearing more conservative
- Clean up syscall table handling
- Clean up & standardize assembly macros, in preparation of FRED
- Misc cleanups and fixes
Thanks,
Ingo
------------------>
H. Peter Anvin (1):
x86/regs: Syscall_get_nr() returns -1 for a non-system call
H. Peter Anvin (Intel) (8):
x86/asm: Have the __ASM_FORM macros handle commas in arguments
x86/asm: Add _ASM_BYTES() macro for a .byte ... opcode sequence
x86/asm: Use _ASM_BYTES() in <asm/nops.h>
x86/entry: Unify definitions from <asm/calling.h> and <asm/ptrace-abi.h>
x86/entry: Reverse arguments to do_syscall_64()
x86/syscall: Unconditionally prototype {ia32,x32}_sys_call_table[]
x86/syscall: Maximize MSR_SYSCALL_MASK
x86/entry: Split PUSH_AND_CLEAR_REGS into two submacros
Ingo Molnar (1):
x86/asm: Make <asm/asm.h> valid on cross-builds as well
arch/x86/entry/calling.h | 45 ++-------
arch/x86/entry/common.c | 2 +-
arch/x86/entry/entry_64.S | 4 +-
arch/x86/include/asm/asm.h | 27 +++---
arch/x86/include/asm/nops.h | 24 ++---
arch/x86/include/asm/syscall.h | 13 ++-
arch/x86/kernel/cpu/common.c | 12 ++-
arch/x86/kernel/head_64.S | 6 +-
arch/x86/kernel/ptrace.c | 2 +-
arch/x86/kernel/signal.c | 4 +-
tools/arch/x86/include/asm/asm.h | 193 ++++++++++++++++++++++++++++++++++++++
tools/arch/x86/include/asm/nops.h | 24 ++---
12 files changed, 262 insertions(+), 94 deletions(-)
create mode 100644 tools/arch/x86/include/asm/asm.h
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