631bc48782
When async PF capability is detected hook up special page fault handler that will handle async page fault events and bypass other page faults to regular page fault handler. Also add async PF handling to nested SVM emulation. Async PF always generates exit to L1 where vcpu thread will be scheduled out until page is available. Acked-by: Rik van Riel <riel@redhat.com> Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
91 lines
3.1 KiB
C
91 lines
3.1 KiB
C
#ifndef _ASM_X86_TRAPS_H
|
|
#define _ASM_X86_TRAPS_H
|
|
|
|
#include <asm/debugreg.h>
|
|
#include <asm/siginfo.h> /* TRAP_TRACE, ... */
|
|
|
|
#ifdef CONFIG_X86_32
|
|
#define dotraplinkage
|
|
#else
|
|
#define dotraplinkage asmlinkage
|
|
#endif
|
|
|
|
asmlinkage void divide_error(void);
|
|
asmlinkage void debug(void);
|
|
asmlinkage void nmi(void);
|
|
asmlinkage void int3(void);
|
|
asmlinkage void xen_debug(void);
|
|
asmlinkage void xen_int3(void);
|
|
asmlinkage void xen_stack_segment(void);
|
|
asmlinkage void overflow(void);
|
|
asmlinkage void bounds(void);
|
|
asmlinkage void invalid_op(void);
|
|
asmlinkage void device_not_available(void);
|
|
#ifdef CONFIG_X86_64
|
|
asmlinkage void double_fault(void);
|
|
#endif
|
|
asmlinkage void coprocessor_segment_overrun(void);
|
|
asmlinkage void invalid_TSS(void);
|
|
asmlinkage void segment_not_present(void);
|
|
asmlinkage void stack_segment(void);
|
|
asmlinkage void general_protection(void);
|
|
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
|
|
asmlinkage void machine_check(void);
|
|
#endif /* CONFIG_X86_MCE */
|
|
asmlinkage void simd_coprocessor_error(void);
|
|
|
|
dotraplinkage void do_divide_error(struct pt_regs *, long);
|
|
dotraplinkage void do_debug(struct pt_regs *, long);
|
|
dotraplinkage void do_nmi(struct pt_regs *, long);
|
|
dotraplinkage void do_int3(struct pt_regs *, long);
|
|
dotraplinkage void do_overflow(struct pt_regs *, long);
|
|
dotraplinkage void do_bounds(struct pt_regs *, long);
|
|
dotraplinkage void do_invalid_op(struct pt_regs *, long);
|
|
dotraplinkage void do_device_not_available(struct pt_regs *, long);
|
|
dotraplinkage void do_coprocessor_segment_overrun(struct pt_regs *, long);
|
|
dotraplinkage void do_invalid_TSS(struct pt_regs *, long);
|
|
dotraplinkage void do_segment_not_present(struct pt_regs *, long);
|
|
dotraplinkage void do_stack_segment(struct pt_regs *, long);
|
|
#ifdef CONFIG_X86_64
|
|
dotraplinkage void do_double_fault(struct pt_regs *, long);
|
|
asmlinkage __kprobes struct pt_regs *sync_regs(struct pt_regs *);
|
|
#endif
|
|
dotraplinkage void do_general_protection(struct pt_regs *, long);
|
|
dotraplinkage void do_page_fault(struct pt_regs *, unsigned long);
|
|
dotraplinkage void do_spurious_interrupt_bug(struct pt_regs *, long);
|
|
dotraplinkage void do_coprocessor_error(struct pt_regs *, long);
|
|
dotraplinkage void do_alignment_check(struct pt_regs *, long);
|
|
#ifdef CONFIG_X86_MCE
|
|
dotraplinkage void do_machine_check(struct pt_regs *, long);
|
|
#endif
|
|
dotraplinkage void do_simd_coprocessor_error(struct pt_regs *, long);
|
|
#ifdef CONFIG_X86_32
|
|
dotraplinkage void do_iret_error(struct pt_regs *, long);
|
|
#endif
|
|
|
|
static inline int get_si_code(unsigned long condition)
|
|
{
|
|
if (condition & DR_STEP)
|
|
return TRAP_TRACE;
|
|
else if (condition & (DR_TRAP0|DR_TRAP1|DR_TRAP2|DR_TRAP3))
|
|
return TRAP_HWBKPT;
|
|
else
|
|
return TRAP_BRKPT;
|
|
}
|
|
|
|
extern int panic_on_unrecovered_nmi;
|
|
|
|
void math_error(struct pt_regs *, int, int);
|
|
void math_emulate(struct math_emu_info *);
|
|
#ifndef CONFIG_X86_32
|
|
asmlinkage void smp_thermal_interrupt(void);
|
|
asmlinkage void mce_threshold_interrupt(void);
|
|
#endif
|
|
|
|
#endif /* _ASM_X86_TRAPS_H */
|