diff options
Diffstat (limited to 'xen/include/asm-x86/mm.h')
| -rw-r--r-- | xen/include/asm-x86/mm.h | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/xen/include/asm-x86/mm.h b/xen/include/asm-x86/mm.h index 7bee92ca01..b0389df3dd 100644 --- a/xen/include/asm-x86/mm.h +++ b/xen/include/asm-x86/mm.h @@ -316,6 +316,9 @@ struct ptwr_info { unsigned int prev_nr_updates; /* Exec domain which created writable mapping. */ struct vcpu *vcpu; + /* EIP of the address which took the original write fault + used for stats collection only */ + unsigned long eip; }; #define PTWR_PT_ACTIVE 0 @@ -327,7 +330,8 @@ struct ptwr_info { int ptwr_init(struct domain *); void ptwr_destroy(struct domain *); void ptwr_flush(struct domain *, const int); -int ptwr_do_page_fault(struct domain *, unsigned long); +int ptwr_do_page_fault(struct domain *, unsigned long, + struct cpu_user_regs *); int revalidate_l1(struct domain *, l1_pgentry_t *, l1_pgentry_t *); void cleanup_writable_pagetable(struct domain *d); @@ -353,6 +357,18 @@ void audit_domains(void); #endif +#ifdef PERF_ARRAYS + +void ptwr_eip_stat_reset(); +void ptwr_eip_stat_print(); + +#else + +#define ptwr_eip_stat_reset() ((void)0) +#define ptwr_eip_stat_print() ((void)0) + +#endif + int new_guest_cr3(unsigned long pfn); void propagate_page_fault(unsigned long addr, u16 error_code); |