From: Jeremy Fitzhardinge Date: Fri, 17 Dec 2010 01:02:35 +0000 (-0800) Subject: xen/trace: add mmu tracepoints X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=847088079162a5cf8ab0d1ad1ecf7fa60c057246;p=mv-sheeva.git xen/trace: add mmu tracepoints Signed-off-by: Jeremy Fitzhardinge --- diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c index 0ccccb67a99..43fa7771ccb 100644 --- a/arch/x86/xen/mmu.c +++ b/arch/x86/xen/mmu.c @@ -48,6 +48,8 @@ #include #include +#include + #include #include #include @@ -194,6 +196,8 @@ void xen_set_domain_pte(pte_t *ptep, pte_t pteval, unsigned domid) struct multicall_space mcs; struct mmu_update *u; + trace_xen_mmu_set_domain_pte(ptep, pteval, domid); + mcs = xen_mc_entry(sizeof(*u)); u = mcs.args; @@ -245,6 +249,8 @@ static void xen_set_pmd_hyper(pmd_t *ptr, pmd_t val) static void xen_set_pmd(pmd_t *ptr, pmd_t val) { + trace_xen_mmu_set_pmd(ptr, val); + /* If page is not pinned, we can just update the entry directly */ if (!xen_page_pinned(ptr)) { @@ -282,22 +288,30 @@ static bool xen_batched_set_pte(pte_t *ptep, pte_t pteval) return true; } -static void xen_set_pte(pte_t *ptep, pte_t pteval) +static inline void __xen_set_pte(pte_t *ptep, pte_t pteval) { if (!xen_batched_set_pte(ptep, pteval)) native_set_pte(ptep, pteval); } +static void xen_set_pte(pte_t *ptep, pte_t pteval) +{ + trace_xen_mmu_set_pte(ptep, pteval); + __xen_set_pte(ptep, pteval); +} + static void xen_set_pte_at(struct mm_struct *mm, unsigned long addr, pte_t *ptep, pte_t pteval) { - xen_set_pte(ptep, pteval); + trace_xen_mmu_set_pte_at(mm, addr, ptep, pteval); + __xen_set_pte(ptep, pteval); } pte_t xen_ptep_modify_prot_start(struct mm_struct *mm, unsigned long addr, pte_t *ptep) { /* Just return the pte as-is. We preserve the bits on commit */ + trace_xen_mmu_ptep_modify_prot_start(mm, addr, ptep, *ptep); return *ptep; } @@ -306,6 +320,7 @@ void xen_ptep_modify_prot_commit(struct mm_struct *mm, unsigned long addr, { struct mmu_update u; + trace_xen_mmu_ptep_modify_prot_commit(mm, addr, ptep, pte); xen_mc_batch(); u.ptr = virt_to_machine(ptep).maddr | MMU_PT_UPDATE_PRESERVE_AD; @@ -530,6 +545,8 @@ static void xen_set_pud_hyper(pud_t *ptr, pud_t val) static void xen_set_pud(pud_t *ptr, pud_t val) { + trace_xen_mmu_set_pud(ptr, val); + /* If page is not pinned, we can just update the entry directly */ if (!xen_page_pinned(ptr)) { @@ -543,17 +560,20 @@ static void xen_set_pud(pud_t *ptr, pud_t val) #ifdef CONFIG_X86_PAE static void xen_set_pte_atomic(pte_t *ptep, pte_t pte) { + trace_xen_mmu_set_pte_atomic(ptep, pte); set_64bit((u64 *)ptep, native_pte_val(pte)); } static void xen_pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep) { + trace_xen_mmu_pte_clear(mm, addr, ptep); if (!xen_batched_set_pte(ptep, native_make_pte(0))) native_pte_clear(mm, addr, ptep); } static void xen_pmd_clear(pmd_t *pmdp) { + trace_xen_mmu_pmd_clear(pmdp); set_pmd(pmdp, __pmd(0)); } #endif /* CONFIG_X86_PAE */ @@ -629,6 +649,8 @@ static void xen_set_pgd(pgd_t *ptr, pgd_t val) { pgd_t *user_ptr = xen_get_user_pgd(ptr); + trace_xen_mmu_set_pgd(ptr, user_ptr, val); + /* If page is not pinned, we can just update the entry directly */ if (!xen_page_pinned(ptr)) { diff --git a/include/trace/events/xen.h b/include/trace/events/xen.h index 330848269bc..08089e82f77 100644 --- a/include/trace/events/xen.h +++ b/include/trace/events/xen.h @@ -125,6 +125,229 @@ TRACE_EVENT(xen_mc_extend_args, __entry->res == XEN_MC_XE_BAD_OP ? "BAD_OP" : __entry->res == XEN_MC_XE_NO_SPACE ? "NO_SPACE" : "???") ); + +/* mmu */ +TRACE_EVENT(xen_mmu_set_pte, + TP_PROTO(pte_t *ptep, pte_t pteval), + TP_ARGS(ptep, pteval), + TP_STRUCT__entry( + __field(pte_t *, ptep) + __field(pteval_t, pteval) + ), + TP_fast_assign(__entry->ptep = ptep; + __entry->pteval = pteval.pte), + TP_printk("ptep %p pteval %0*llx (raw %0*llx)", + __entry->ptep, + (int)sizeof(pteval_t) * 2, (unsigned long long)pte_val(native_make_pte(__entry->pteval)), + (int)sizeof(pteval_t) * 2, (unsigned long long)__entry->pteval) + ); + +TRACE_EVENT(xen_mmu_set_pte_atomic, + TP_PROTO(pte_t *ptep, pte_t pteval), + TP_ARGS(ptep, pteval), + TP_STRUCT__entry( + __field(pte_t *, ptep) + __field(pteval_t, pteval) + ), + TP_fast_assign(__entry->ptep = ptep; + __entry->pteval = pteval.pte), + TP_printk("ptep %p pteval %0*llx (raw %0*llx)", + __entry->ptep, + (int)sizeof(pteval_t) * 2, (unsigned long long)pte_val(native_make_pte(__entry->pteval)), + (int)sizeof(pteval_t) * 2, (unsigned long long)__entry->pteval) + ); + +TRACE_EVENT(xen_mmu_set_domain_pte, + TP_PROTO(pte_t *ptep, pte_t pteval, unsigned domid), + TP_ARGS(ptep, pteval, domid), + TP_STRUCT__entry( + __field(pte_t *, ptep) + __field(pteval_t, pteval) + __field(unsigned, domid) + ), + TP_fast_assign(__entry->ptep = ptep; + __entry->pteval = pteval.pte; + __entry->domid = domid), + TP_printk("ptep %p pteval %0*llx (raw %0*llx) domid %u", + __entry->ptep, + (int)sizeof(pteval_t) * 2, (unsigned long long)pte_val(native_make_pte(__entry->pteval)), + (int)sizeof(pteval_t) * 2, (unsigned long long)__entry->pteval, + __entry->domid) + ); + +TRACE_EVENT(xen_mmu_set_pte_at, + TP_PROTO(struct mm_struct *mm, unsigned long addr, + pte_t *ptep, pte_t pteval), + TP_ARGS(mm, addr, ptep, pteval), + TP_STRUCT__entry( + __field(struct mm_struct *, mm) + __field(unsigned long, addr) + __field(pte_t *, ptep) + __field(pteval_t, pteval) + ), + TP_fast_assign(__entry->mm = mm; + __entry->addr = addr; + __entry->ptep = ptep; + __entry->pteval = pteval.pte), + TP_printk("mm %p addr %lx ptep %p pteval %0*llx (raw %0*llx)", + __entry->mm, __entry->addr, __entry->ptep, + (int)sizeof(pteval_t) * 2, (unsigned long long)pte_val(native_make_pte(__entry->pteval)), + (int)sizeof(pteval_t) * 2, (unsigned long long)__entry->pteval) + ); + +TRACE_EVENT(xen_mmu_pte_clear, + TP_PROTO(struct mm_struct *mm, unsigned long addr, pte_t *ptep), + TP_ARGS(mm, addr, ptep), + TP_STRUCT__entry( + __field(struct mm_struct *, mm) + __field(unsigned long, addr) + __field(pte_t *, ptep) + ), + TP_fast_assign(__entry->mm = mm; + __entry->addr = addr; + __entry->ptep = ptep), + TP_printk("mm %p addr %lx ptep %p", + __entry->mm, __entry->addr, __entry->ptep) + ); + +TRACE_EVENT(xen_mmu_set_pmd, + TP_PROTO(pmd_t *pmdp, pmd_t pmdval), + TP_ARGS(pmdp, pmdval), + TP_STRUCT__entry( + __field(pmd_t *, pmdp) + __field(pmdval_t, pmdval) + ), + TP_fast_assign(__entry->pmdp = pmdp; + __entry->pmdval = pmdval.pmd), + TP_printk("pmdp %p pmdval %0*llx (raw %0*llx)", + __entry->pmdp, + (int)sizeof(pmdval_t) * 2, (unsigned long long)pmd_val(native_make_pmd(__entry->pmdval)), + (int)sizeof(pmdval_t) * 2, (unsigned long long)__entry->pmdval) + ); + +TRACE_EVENT(xen_mmu_pmd_clear, + TP_PROTO(pmd_t *pmdp), + TP_ARGS(pmdp), + TP_STRUCT__entry( + __field(pmd_t *, pmdp) + ), + TP_fast_assign(__entry->pmdp = pmdp), + TP_printk("pmdp %p", __entry->pmdp) + ); + +#if PAGETABLE_LEVELS >= 4 + +TRACE_EVENT(xen_mmu_set_pud, + TP_PROTO(pud_t *pudp, pud_t pudval), + TP_ARGS(pudp, pudval), + TP_STRUCT__entry( + __field(pud_t *, pudp) + __field(pudval_t, pudval) + ), + TP_fast_assign(__entry->pudp = pudp; + __entry->pudval = native_pud_val(pudval)), + TP_printk("pudp %p pudval %0*llx (raw %0*llx)", + __entry->pudp, + (int)sizeof(pudval_t) * 2, (unsigned long long)pud_val(native_make_pud(__entry->pudval)), + (int)sizeof(pudval_t) * 2, (unsigned long long)__entry->pudval) + ); + +TRACE_EVENT(xen_mmu_set_pgd, + TP_PROTO(pgd_t *pgdp, pgd_t *user_pgdp, pgd_t pgdval), + TP_ARGS(pgdp, user_pgdp, pgdval), + TP_STRUCT__entry( + __field(pgd_t *, pgdp) + __field(pgd_t *, user_pgdp) + __field(pgdval_t, pgdval) + ), + TP_fast_assign(__entry->pgdp = pgdp; + __entry->user_pgdp = user_pgdp; + __entry->pgdval = pgdval.pgd), + TP_printk("pgdp %p user_pgdp %p pgdval %0*llx (raw %0*llx)", + __entry->pgdp, __entry->user_pgdp, + (int)sizeof(pgdval_t) * 2, (unsigned long long)pgd_val(native_make_pgd(__entry->pgdval)), + (int)sizeof(pgdval_t) * 2, (unsigned long long)__entry->pgdval) + ); + +TRACE_EVENT(xen_mmu_pud_clear, + TP_PROTO(pud_t *pudp), + TP_ARGS(pudp), + TP_STRUCT__entry( + __field(pud_t *, pudp) + ), + TP_fast_assign(__entry->pudp = pudp), + TP_printk("pudp %p", __entry->pudp) + ); +#else + +TRACE_EVENT(xen_mmu_set_pud, + TP_PROTO(pud_t *pudp, pud_t pudval), + TP_ARGS(pudp, pudval), + TP_STRUCT__entry( + __field(pud_t *, pudp) + __field(pudval_t, pudval) + ), + TP_fast_assign(__entry->pudp = pudp; + __entry->pudval = native_pud_val(pudval)), + TP_printk("pudp %p pudval %0*llx (raw %0*llx)", + __entry->pudp, + (int)sizeof(pudval_t) * 2, (unsigned long long)pgd_val(native_make_pgd(__entry->pudval)), + (int)sizeof(pudval_t) * 2, (unsigned long long)__entry->pudval) + ); + +#endif + +TRACE_EVENT(xen_mmu_pgd_clear, + TP_PROTO(pgd_t *pgdp), + TP_ARGS(pgdp), + TP_STRUCT__entry( + __field(pgd_t *, pgdp) + ), + TP_fast_assign(__entry->pgdp = pgdp), + TP_printk("pgdp %p", __entry->pgdp) + ); + +TRACE_EVENT(xen_mmu_ptep_modify_prot_start, + TP_PROTO(struct mm_struct *mm, unsigned long addr, + pte_t *ptep, pte_t pteval), + TP_ARGS(mm, addr, ptep, pteval), + TP_STRUCT__entry( + __field(struct mm_struct *, mm) + __field(unsigned long, addr) + __field(pte_t *, ptep) + __field(pteval_t, pteval) + ), + TP_fast_assign(__entry->mm = mm; + __entry->addr = addr; + __entry->ptep = ptep; + __entry->pteval = pteval.pte), + TP_printk("mm %p addr %lx ptep %p pteval %0*llx (raw %0*llx)", + __entry->mm, __entry->addr, __entry->ptep, + (int)sizeof(pteval_t) * 2, (unsigned long long)pte_val(native_make_pte(__entry->pteval)), + (int)sizeof(pteval_t) * 2, (unsigned long long)__entry->pteval) + ); + +TRACE_EVENT(xen_mmu_ptep_modify_prot_commit, + TP_PROTO(struct mm_struct *mm, unsigned long addr, + pte_t *ptep, pte_t pteval), + TP_ARGS(mm, addr, ptep, pteval), + TP_STRUCT__entry( + __field(struct mm_struct *, mm) + __field(unsigned long, addr) + __field(pte_t *, ptep) + __field(pteval_t, pteval) + ), + TP_fast_assign(__entry->mm = mm; + __entry->addr = addr; + __entry->ptep = ptep; + __entry->pteval = pteval.pte), + TP_printk("mm %p addr %lx ptep %p pteval %0*llx (raw %0*llx)", + __entry->mm, __entry->addr, __entry->ptep, + (int)sizeof(pteval_t) * 2, (unsigned long long)pte_val(native_make_pte(__entry->pteval)), + (int)sizeof(pteval_t) * 2, (unsigned long long)__entry->pteval) + ); + + #endif /* _TRACE_XEN_H */ /* This part must be outside protection */