diff options
| -rw-r--r-- | arch/x86/xen/mmu.c | 4 | ||||
| -rw-r--r-- | include/trace/events/xen.h | 24 |
2 files changed, 28 insertions, 0 deletions
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c index f2160997287e..5dfa90a7ad18 100644 --- a/arch/x86/xen/mmu.c +++ b/arch/x86/xen/mmu.c @@ -885,6 +885,8 @@ static int xen_pin_page(struct mm_struct *mm, struct page *page, read-only, and can be pinned. */ static void __xen_pgd_pin(struct mm_struct *mm, pgd_t *pgd) { + trace_xen_mmu_pgd_pin(mm, pgd); + xen_mc_batch(); if (__xen_pgd_walk(mm, pgd, xen_pin_page, USER_LIMIT)) { @@ -1010,6 +1012,8 @@ static int xen_unpin_page(struct mm_struct *mm, struct page *page, /* Release a pagetables pages back as normal RW */ static void __xen_pgd_unpin(struct mm_struct *mm, pgd_t *pgd) { + trace_xen_mmu_pgd_unpin(mm, pgd); + xen_mc_batch(); xen_do_pin(MMUEXT_UNPIN_TABLE, PFN_DOWN(__pa(pgd))); diff --git a/include/trace/events/xen.h b/include/trace/events/xen.h index f46fdb4afb89..0b6056de2b00 100644 --- a/include/trace/events/xen.h +++ b/include/trace/events/xen.h @@ -381,6 +381,30 @@ TRACE_EVENT(xen_mmu_release_ptpage, __entry->pinned ? "" : "un") ); +TRACE_EVENT(xen_mmu_pgd_pin, + TP_PROTO(struct mm_struct *mm, pgd_t *pgd), + TP_ARGS(mm, pgd), + TP_STRUCT__entry( + __field(struct mm_struct *, mm) + __field(pgd_t *, pgd) + ), + TP_fast_assign(__entry->mm = mm; + __entry->pgd = pgd), + TP_printk("mm %p pgd %p", __entry->mm, __entry->pgd) + ); + +TRACE_EVENT(xen_mmu_pgd_unpin, + TP_PROTO(struct mm_struct *mm, pgd_t *pgd), + TP_ARGS(mm, pgd), + TP_STRUCT__entry( + __field(struct mm_struct *, mm) + __field(pgd_t *, pgd) + ), + TP_fast_assign(__entry->mm = mm; + __entry->pgd = pgd), + TP_printk("mm %p pgd %p", __entry->mm, __entry->pgd) + ); + #endif /* _TRACE_XEN_H */ /* This part must be outside protection */ |