Messages in this thread | | | Date | Sat, 28 Oct 2023 15:37:46 +0200 | From | Ingo Molnar <> | Subject | [GIT PULL] x86/entry changes for v6.7 |
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Linus,
Please pull the latest x86/entry git tree from:
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86-entry-2023-10-28
# HEAD: 1a09a27153f91cd7676b2d4ca574577572a8c999 x86/entry/32: Clean up syscall fast exit tests
Changes to the x86 entry code in v6.7:
- Make IA32_EMULATION boot time configurable with the new ia32_emulation=<bool> boot option.
- Clean up fast syscall return validation code: convert it to C and refactor the code.
- As part of this, optimize the canonical RIP test code.
Thanks,
Ingo
------------------> Brian Gerst (7): x86/entry/64: Remove obsolete comment on tracing vs. SYSRET x86/entry/compat: Combine return value test from syscall handler x86/entry/32: Convert do_fast_syscall_32() to bool return type x86/entry/32: Remove SEP test for SYSEXIT x86/entry/64: Convert SYSRET validation tests to C x86/entry/64: Use TASK_SIZE_MAX for canonical RIP test x86/entry/32: Clean up syscall fast exit tests
Nikolay Borisov (6): x86: Introduce ia32_enabled() x86/entry: Rename ignore_sysret() x86/entry: Compile entry_SYSCALL32_ignore() unconditionally x86/elf: Make loading of 32bit processes depend on ia32_enabled() x86/entry: Make IA32 syscalls' availability depend on ia32_enabled() x86: Make IA32_EMULATION boot time configurable
Documentation/admin-guide/kernel-parameters.txt | 6 ++ arch/x86/Kconfig | 9 ++ arch/x86/entry/common.c | 113 +++++++++++++++++------- arch/x86/entry/entry_32.S | 2 +- arch/x86/entry/entry_64.S | 72 +-------------- arch/x86/entry/entry_64_compat.S | 11 ++- arch/x86/include/asm/elf.h | 3 +- arch/x86/include/asm/ia32.h | 16 +++- arch/x86/include/asm/processor.h | 2 +- arch/x86/include/asm/proto.h | 3 + arch/x86/include/asm/syscall.h | 6 +- arch/x86/kernel/cpu/common.c | 37 ++++---- arch/x86/kernel/idt.c | 7 ++ 13 files changed, 155 insertions(+), 132 deletions(-)
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