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| author | Thomas Gleixner <tglx@linutronix.de> | 2020-02-25 23:16:28 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2020-06-11 15:14:51 +0200 |
| commit | 436608bb00a59f5457cee26f416067860ca88d9d (patch) | |
| tree | 64c22a2f0a2f619cf90710a4c36ba4e7f3b93e07 /arch/x86/entry | |
| parent | 14a8bd2aa7c355b3a8879618a4f70f9c2b0004f7 (diff) | |
| download | linux-436608bb00a59f5457cee26f416067860ca88d9d.tar.gz linux-436608bb00a59f5457cee26f416067860ca88d9d.tar.bz2 linux-436608bb00a59f5457cee26f416067860ca88d9d.zip | |
x86/entry: Convert Alignment check exception to IDTENTRY
Convert #AC 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/20200505134905.928967113@linutronix.de
Diffstat (limited to 'arch/x86/entry')
| -rw-r--r-- | arch/x86/entry/entry_32.S | 6 | ||||
| -rw-r--r-- | arch/x86/entry/entry_64.S | 1 |
2 files changed, 0 insertions, 7 deletions
diff --git a/arch/x86/entry/entry_32.S b/arch/x86/entry/entry_32.S index 66d4683026f0..740289017179 100644 --- a/arch/x86/entry/entry_32.S +++ b/arch/x86/entry/entry_32.S @@ -1311,12 +1311,6 @@ SYM_CODE_START(native_iret) SYM_CODE_END(native_iret) #endif -SYM_CODE_START(alignment_check) - ASM_CLAC - pushl $do_alignment_check - jmp common_exception -SYM_CODE_END(alignment_check) - #ifdef CONFIG_X86_MCE SYM_CODE_START(machine_check) ASM_CLAC diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S index f1f126bb4945..3c95a6307d72 100644 --- a/arch/x86/entry/entry_64.S +++ b/arch/x86/entry/entry_64.S @@ -1073,7 +1073,6 @@ apicinterrupt IRQ_WORK_VECTOR irq_work_interrupt smp_irq_work_interrupt */ idtentry X86_TRAP_BP int3 do_int3 has_error_code=0 -idtentry X86_TRAP_AC alignment_check do_alignment_check has_error_code=1 idtentry X86_TRAP_XF simd_coprocessor_error do_simd_coprocessor_error has_error_code=0 idtentry X86_TRAP_PF page_fault do_page_fault has_error_code=1 |