[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH 09/15] xen/trace: add tlb flush tracepoints
From: Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx> --- arch/x86/xen/mmu.c | 8 +++++++ include/trace/events/xen.h | 48 ++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 56 insertions(+), 0 deletions(-) diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c index 8aaa398..ad8a226 100644 --- a/arch/x86/xen/mmu.c +++ b/arch/x86/xen/mmu.c @@ -1221,6 +1221,8 @@ static void xen_flush_tlb(void) struct mmuext_op *op; struct multicall_space mcs; + trace_xen_mmu_flush_tlb(0); + preempt_disable(); mcs = xen_mc_entry(sizeof(*op)); @@ -1239,6 +1241,8 @@ static void xen_flush_tlb_single(unsigned long addr) struct mmuext_op *op; struct multicall_space mcs; + trace_xen_mmu_flush_tlb_single(addr); + preempt_disable(); mcs = xen_mc_entry(sizeof(*op)); @@ -1261,6 +1265,8 @@ static void xen_flush_tlb_others(const struct cpumask *cpus, } *args; struct multicall_space mcs; + trace_xen_mmu_flush_tlb_others(cpus, mm, va); + if (cpumask_empty(cpus)) return; /* nothing to do */ @@ -1300,6 +1306,8 @@ static void __xen_write_cr3(bool kernel, unsigned long cr3) struct multicall_space mcs; unsigned long mfn; + trace_xen_mmu_write_cr3(kernel, cr3); + if (cr3) mfn = pfn_to_mfn(PFN_DOWN(cr3)); else diff --git a/include/trace/events/xen.h b/include/trace/events/xen.h index b1f73c4..7d88f7d 100644 --- a/include/trace/events/xen.h +++ b/include/trace/events/xen.h @@ -405,6 +405,54 @@ TRACE_EVENT(xen_mmu_pgd_unpin, TP_printk("mm %p pgd %p", __entry->mm, __entry->pgd) ); +TRACE_EVENT(xen_mmu_flush_tlb, + TP_PROTO(int x), + TP_ARGS(x), + TP_STRUCT__entry(__array(char, x, 0)), + TP_fast_assign((void)x), + TP_printk("%s", "") + ); + +TRACE_EVENT(xen_mmu_flush_tlb_single, + TP_PROTO(unsigned long addr), + TP_ARGS(addr), + TP_STRUCT__entry( + __field(unsigned long, addr) + ), + TP_fast_assign(__entry->addr = addr), + TP_printk("addr %lx", __entry->addr) + ); + +TRACE_EVENT(xen_mmu_flush_tlb_others, + TP_PROTO(const struct cpumask *cpus, struct mm_struct *mm, + unsigned long addr), + TP_ARGS(cpus, mm, addr), + TP_STRUCT__entry( + __field(unsigned, ncpus) + __field(struct mm_struct *, mm) + __field(unsigned long, addr) + ), + TP_fast_assign(__entry->ncpus = cpumask_weight(cpus); + __entry->mm = mm; + __entry->addr = addr), + TP_printk("ncpus %d mm %p addr %lx", + __entry->ncpus, __entry->mm, __entry->addr) + ); + +TRACE_EVENT(xen_mmu_write_cr3, + TP_PROTO(bool kernel, unsigned long cr3), + TP_ARGS(kernel, cr3), + TP_STRUCT__entry( + __field(bool, kernel) + __field(unsigned long, cr3) + ), + TP_fast_assign(__entry->kernel = kernel; + __entry->cr3 = cr3), + TP_printk("%s cr3 %lx", + __entry->kernel ? "kernel" : "user", __entry->cr3) + ); + + /* CPU */ TRACE_EVENT(xen_cpu_write_ldt_entry, TP_PROTO(struct desc_struct *dt, int entrynum, u64 desc), -- 1.7.5.4 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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