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| author | Thomas Gleixner <tglx@linutronix.de> | 2020-02-25 23:16:29 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2020-06-11 15:14:52 +0200 |
| commit | 48227e21f7430e31042f63e078a45cd230e9fdfc (patch) | |
| tree | 332e7975c694d313b7de5ec011b43a915f2363e8 /arch/x86/entry | |
| parent | x86/entry: Convert Alignment check exception to IDTENTRY (diff) | |
| download | linux-48227e21f7430e31042f63e078a45cd230e9fdfc.tar.xz linux-48227e21f7430e31042f63e078a45cd230e9fdfc.zip | |
x86/entry: Convert SIMD coprocessor error exception to IDTENTRY
Convert #XF to IDTENTRY_ERRORCODE:
- Implement the C entry point with DEFINE_IDTENTRY
- Emit the ASM stub with DECLARE_IDTENTRY
- Handle INVD_BUG in C
- 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/20200505134906.021552202@linutronix.de
Diffstat (limited to 'arch/x86/entry')
| -rw-r--r-- | arch/x86/entry/entry_32.S | 14 | ||||
| -rw-r--r-- | arch/x86/entry/entry_64.S | 1 |
2 files changed, 0 insertions, 15 deletions
diff --git a/arch/x86/entry/entry_32.S b/arch/x86/entry/entry_32.S index 740289017179..c93fb73af039 100644 --- a/arch/x86/entry/entry_32.S +++ b/arch/x86/entry/entry_32.S @@ -1290,20 +1290,6 @@ SYM_FUNC_END(name) /* The include is where all of the SMP etc. interrupts come from */ #include <asm/entry_arch.h> -SYM_CODE_START(simd_coprocessor_error) - ASM_CLAC - pushl $0 -#ifdef CONFIG_X86_INVD_BUG - /* AMD 486 bug: invd from userspace calls exception 19 instead of #GP */ - ALTERNATIVE "pushl $exc_general_protection", \ - "pushl $do_simd_coprocessor_error", \ - X86_FEATURE_XMM -#else - pushl $do_simd_coprocessor_error -#endif - jmp common_exception -SYM_CODE_END(simd_coprocessor_error) - #ifdef CONFIG_PARAVIRT SYM_CODE_START(native_iret) iret diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S index 3c95a6307d72..1bada7b26210 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_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 |