diff options
Diffstat (limited to 'arch/x86/entry/entry_64.S')
| -rw-r--r-- | arch/x86/entry/entry_64.S | 40 |
1 files changed, 7 insertions, 33 deletions
diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S index 76993591fdf6..e7434cda9a38 100644 --- a/arch/x86/entry/entry_64.S +++ b/arch/x86/entry/entry_64.S @@ -358,34 +358,6 @@ SYM_CODE_START(ret_from_fork) SYM_CODE_END(ret_from_fork) .popsection -/* - * Build the entry stubs with some assembler magic. - * We pack 1 stub into every 8-byte block. - */ - .align 8 -SYM_CODE_START(irq_entries_start) - vector=FIRST_EXTERNAL_VECTOR - .rept (FIRST_SYSTEM_VECTOR - FIRST_EXTERNAL_VECTOR) - UNWIND_HINT_IRET_REGS - pushq $(~vector+0x80) /* Note: always in signed byte range */ - jmp common_interrupt - .align 8 - vector=vector+1 - .endr -SYM_CODE_END(irq_entries_start) - - .align 8 -SYM_CODE_START(spurious_entries_start) - vector=FIRST_SYSTEM_VECTOR - .rept (NR_VECTORS - FIRST_SYSTEM_VECTOR) - UNWIND_HINT_IRET_REGS - pushq $(~vector+0x80) /* Note: always in signed byte range */ - jmp common_spurious - .align 8 - vector=vector+1 - .endr -SYM_CODE_END(spurious_entries_start) - .macro DEBUG_ENTRY_ASSERT_IRQS_OFF #ifdef CONFIG_DEBUG_ENTRY pushq %rax @@ -755,13 +727,14 @@ _ASM_NOKPROBE(interrupt_entry) /* Interrupt entry/exit. */ /* - * The interrupt stubs push (~vector+0x80) onto the stack and + * The interrupt stubs push vector onto the stack and * then jump to common_spurious/interrupt. */ SYM_CODE_START_LOCAL(common_spurious) - addq $-0x80, (%rsp) /* Adjust vector to [-256, -1] range */ call interrupt_entry UNWIND_HINT_REGS indirect=1 + movq ORIG_RAX(%rdi), %rsi /* get vector from stack */ + movq $-1, ORIG_RAX(%rdi) /* no syscall to restart */ call smp_spurious_interrupt /* rdi points to pt_regs */ jmp ret_from_intr SYM_CODE_END(common_spurious) @@ -770,10 +743,11 @@ _ASM_NOKPROBE(common_spurious) /* common_interrupt is a hotpath. Align it */ .p2align CONFIG_X86_L1_CACHE_SHIFT SYM_CODE_START_LOCAL(common_interrupt) - addq $-0x80, (%rsp) /* Adjust vector to [-256, -1] range */ call interrupt_entry UNWIND_HINT_REGS indirect=1 - call do_IRQ /* rdi points to pt_regs */ + movq ORIG_RAX(%rdi), %rsi /* get vector from stack */ + movq $-1, ORIG_RAX(%rdi) /* no syscall to restart */ + call do_IRQ /* rdi points to pt_regs */ /* 0(%rsp): old RSP */ ret_from_intr: DISABLE_INTERRUPTS(CLBR_ANY) @@ -1022,7 +996,7 @@ apicinterrupt RESCHEDULE_VECTOR reschedule_interrupt smp_reschedule_interrupt #endif apicinterrupt ERROR_APIC_VECTOR error_interrupt smp_error_interrupt -apicinterrupt SPURIOUS_APIC_VECTOR spurious_interrupt smp_spurious_interrupt +apicinterrupt SPURIOUS_APIC_VECTOR spurious_apic_interrupt smp_spurious_apic_interrupt #ifdef CONFIG_IRQ_WORK apicinterrupt IRQ_WORK_VECTOR irq_work_interrupt smp_irq_work_interrupt |