diff options
author | Thomas Gleixner <tglx@linutronix.de> | 2020-02-25 23:16:26 +0100 |
---|---|---|
committer | Thomas Gleixner <tglx@linutronix.de> | 2020-05-05 11:28:00 +0200 |
commit | 605dec80ea86dcebeb8949a6d0e77c8f0a7c28f2 (patch) | |
tree | 588cba136445618e9cb539ecc7041411b8f7b370 | |
parent | 7fbccc1255abc1c04becedfd9fb7a9d63657e8b9 (diff) |
x86/entry: Convert Spurious interrupt bug exception to IDTENTRY
Convert #SPURIOUS 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 prototyoes
No functional change.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
-rw-r--r-- | arch/x86/entry/entry_32.S | 7 | ||||
-rw-r--r-- | arch/x86/entry/entry_64.S | 1 | ||||
-rw-r--r-- | arch/x86/include/asm/idtentry.h | 1 | ||||
-rw-r--r-- | arch/x86/include/asm/traps.h | 3 | ||||
-rw-r--r-- | arch/x86/kernel/idt.c | 2 | ||||
-rw-r--r-- | arch/x86/kernel/traps.c | 3 | ||||
-rw-r--r-- | arch/x86/xen/enlighten_pv.c | 2 | ||||
-rw-r--r-- | arch/x86/xen/xen-asm_64.S | 2 |
8 files changed, 5 insertions, 16 deletions
diff --git a/arch/x86/entry/entry_32.S b/arch/x86/entry/entry_32.S index 77dba5d0f1f0..f39a4c66cdd0 100644 --- a/arch/x86/entry/entry_32.S +++ b/arch/x86/entry/entry_32.S @@ -1333,13 +1333,6 @@ SYM_CODE_START(machine_check) SYM_CODE_END(machine_check) #endif -SYM_CODE_START(spurious_interrupt_bug) - ASM_CLAC - pushl $0 - pushl $do_spurious_interrupt_bug - jmp common_exception -SYM_CODE_END(spurious_interrupt_bug) - #ifdef CONFIG_XEN_PV SYM_FUNC_START(xen_hypervisor_callback) /* diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S index 875eef35e66b..5d0041839687 100644 --- a/arch/x86/entry/entry_64.S +++ b/arch/x86/entry/entry_64.S @@ -1074,7 +1074,6 @@ 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_SPURIOUS spurious_interrupt_bug do_spurious_interrupt_bug has_error_code=0 idtentry X86_TRAP_MF coprocessor_error do_coprocessor_error 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 diff --git a/arch/x86/include/asm/idtentry.h b/arch/x86/include/asm/idtentry.h index d49257af44cb..b48d7e98f0e1 100644 --- a/arch/x86/include/asm/idtentry.h +++ b/arch/x86/include/asm/idtentry.h @@ -129,6 +129,7 @@ DECLARE_IDTENTRY(X86_TRAP_BR, exc_bounds); DECLARE_IDTENTRY(X86_TRAP_UD, exc_invalid_op); DECLARE_IDTENTRY(X86_TRAP_NM, exc_device_not_available); DECLARE_IDTENTRY(X86_TRAP_OLD_MF, exc_coproc_segment_overrun); +DECLARE_IDTENTRY(X86_TRAP_SPURIOUS, exc_spurious_interrupt_bug); /* Simple exception entries with error code pushed by hardware */ DECLARE_IDTENTRY_ERRORCODE(X86_TRAP_TS, exc_invalid_tss); diff --git a/arch/x86/include/asm/traps.h b/arch/x86/include/asm/traps.h index 89f03df355c3..dc05587ea3ea 100644 --- a/arch/x86/include/asm/traps.h +++ b/arch/x86/include/asm/traps.h @@ -19,7 +19,6 @@ asmlinkage void double_fault(void); #endif asmlinkage void page_fault(void); asmlinkage void async_page_fault(void); -asmlinkage void spurious_interrupt_bug(void); asmlinkage void coprocessor_error(void); asmlinkage void alignment_check(void); #ifdef CONFIG_X86_MCE @@ -33,7 +32,6 @@ asmlinkage void xen_xendebug(void); asmlinkage void xen_int3(void); asmlinkage void xen_double_fault(void); asmlinkage void xen_page_fault(void); -asmlinkage void xen_spurious_interrupt_bug(void); asmlinkage void xen_coprocessor_error(void); asmlinkage void xen_alignment_check(void); #ifdef CONFIG_X86_MCE @@ -49,7 +47,6 @@ dotraplinkage void do_int3(struct pt_regs *regs, long error_code); dotraplinkage void do_double_fault(struct pt_regs *regs, long error_code, unsigned long cr2); #endif dotraplinkage void do_page_fault(struct pt_regs *regs, unsigned long error_code, unsigned long address); -dotraplinkage void do_spurious_interrupt_bug(struct pt_regs *regs, long error_code); dotraplinkage void do_coprocessor_error(struct pt_regs *regs, long error_code); dotraplinkage void do_alignment_check(struct pt_regs *regs, long error_code); dotraplinkage void do_simd_coprocessor_error(struct pt_regs *regs, long error_code); diff --git a/arch/x86/kernel/idt.c b/arch/x86/kernel/idt.c index 4e96d045f7f4..a21a30ff5e1d 100644 --- a/arch/x86/kernel/idt.c +++ b/arch/x86/kernel/idt.c @@ -80,7 +80,7 @@ static const __initconst struct idt_data def_idts[] = { INTG(X86_TRAP_NP, asm_exc_segment_not_present), INTG(X86_TRAP_SS, asm_exc_stack_segment), INTG(X86_TRAP_GP, asm_exc_general_protection), - INTG(X86_TRAP_SPURIOUS, spurious_interrupt_bug), + INTG(X86_TRAP_SPURIOUS, asm_exc_spurious_interrupt_bug), INTG(X86_TRAP_MF, coprocessor_error), INTG(X86_TRAP_AC, alignment_check), INTG(X86_TRAP_XF, simd_coprocessor_error), diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c index d1b47267aa3b..65c2a00ed791 100644 --- a/arch/x86/kernel/traps.c +++ b/arch/x86/kernel/traps.c @@ -859,8 +859,7 @@ do_simd_coprocessor_error(struct pt_regs *regs, long error_code) math_error(regs, error_code, X86_TRAP_XF); } -dotraplinkage void -do_spurious_interrupt_bug(struct pt_regs *regs, long error_code) +DEFINE_IDTENTRY(exc_spurious_interrupt_bug) { /* * This addresses a Pentium Pro Erratum: diff --git a/arch/x86/xen/enlighten_pv.c b/arch/x86/xen/enlighten_pv.c index 9e648e0baaa6..180c86ad7911 100644 --- a/arch/x86/xen/enlighten_pv.c +++ b/arch/x86/xen/enlighten_pv.c @@ -632,7 +632,7 @@ static struct trap_array_entry trap_array[] = { TRAP_ENTRY(exc_segment_not_present, false ), TRAP_ENTRY(exc_stack_segment, false ), TRAP_ENTRY(exc_general_protection, false ), - { spurious_interrupt_bug, xen_spurious_interrupt_bug, false }, + TRAP_ENTRY(exc_spurious_interrupt_bug, false ), { coprocessor_error, xen_coprocessor_error, false }, { alignment_check, xen_alignment_check, false }, { simd_coprocessor_error, xen_simd_coprocessor_error, false }, diff --git a/arch/x86/xen/xen-asm_64.S b/arch/x86/xen/xen-asm_64.S index 802ec00b2f9c..698a9c50d877 100644 --- a/arch/x86/xen/xen-asm_64.S +++ b/arch/x86/xen/xen-asm_64.S @@ -44,7 +44,7 @@ xen_pv_trap asm_exc_segment_not_present xen_pv_trap asm_exc_stack_segment xen_pv_trap asm_exc_general_protection xen_pv_trap page_fault -xen_pv_trap spurious_interrupt_bug +xen_pv_trap asm_exc_spurious_interrupt_bug xen_pv_trap coprocessor_error xen_pv_trap alignment_check #ifdef CONFIG_X86_MCE |