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| author | Thomas Gleixner <tglx@linutronix.de> | 2020-02-26 01:16:25 +0300 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2020-06-11 16:14:50 +0300 |
| commit | be4c11afbb6d5317274e61fda0edf744080fb72b (patch) | |
| tree | 21359aa5fefc87041503dda5507e009309c3e323 /arch/x86/entry/entry_32.S | |
| parent | fd9689bf91131c4bea5ea54f828af5267f5ed6a0 (diff) | |
| download | linux-be4c11afbb6d5317274e61fda0edf744080fb72b.tar.xz | |
x86/entry: Convert General protection exception to IDTENTRY
Convert #GP to IDTENTRY_ERRORCODE:
- Implement the C entry point with DEFINE_IDTENTRY
- Emit the ASM stub with DECLARE_IDTENTRY
- Remove the ASM idtentry in 64bit
- Remove the open coded ASM entry code in 32bit
- Fixup the XEN/PV code
- Remove the old prototypes
- Remove the RCU warning as the new entry macro ensures correctness
No functional change.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Alexandre Chartre <alexandre.chartre@oracle.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Andy Lutomirski <luto@kernel.org>
Link: https://lkml.kernel.org/r/20200505134905.637269946@linutronix.de
Diffstat (limited to 'arch/x86/entry/entry_32.S')
| -rw-r--r-- | arch/x86/entry/entry_32.S | 8 |
1 files changed, 1 insertions, 7 deletions
diff --git a/arch/x86/entry/entry_32.S b/arch/x86/entry/entry_32.S index ffe43d2f8fe9..9d94a036bf35 100644 --- a/arch/x86/entry/entry_32.S +++ b/arch/x86/entry/entry_32.S @@ -1302,7 +1302,7 @@ SYM_CODE_START(simd_coprocessor_error) pushl $0 #ifdef CONFIG_X86_INVD_BUG /* AMD 486 bug: invd from userspace calls exception 19 instead of #GP */ - ALTERNATIVE "pushl $do_general_protection", \ + ALTERNATIVE "pushl $exc_general_protection", \ "pushl $do_simd_coprocessor_error", \ X86_FEATURE_XMM #else @@ -1690,12 +1690,6 @@ SYM_CODE_START(int3) jmp common_exception SYM_CODE_END(int3) -SYM_CODE_START(general_protection) - ASM_CLAC - pushl $do_general_protection - jmp common_exception -SYM_CODE_END(general_protection) - .pushsection .text, "ax" SYM_CODE_START(rewind_stack_do_exit) /* Prevent any naive code from trying to unwind to our caller. */ |