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| author | Avi Kivity | 2009-12-31 11:10:16 +0100 |
|---|---|---|
| committer | Marcelo Tosatti | 2010-03-01 16:36:09 +0100 |
| commit | 90bb6fc556ab255abd798bcf4ff5769690ab2eea (patch) | |
| tree | dd17338dbcb5a2963800639bcf097595861810d2 /arch/x86/kvm/mmu.c | |
| parent | KVM: Fix Codestyle in virt/kvm/coalesced_mmio.c (diff) | |
| download | kernel-qcow2-linux-90bb6fc556ab255abd798bcf4ff5769690ab2eea.tar.gz kernel-qcow2-linux-90bb6fc556ab255abd798bcf4ff5769690ab2eea.tar.xz kernel-qcow2-linux-90bb6fc556ab255abd798bcf4ff5769690ab2eea.zip | |
KVM: MMU: Add tracepoint for guest page aging
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/x86/kvm/mmu.c')
| -rw-r--r-- | arch/x86/kvm/mmu.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index b8da6715d08b..739793240d1d 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -151,6 +151,9 @@ module_param(oos_shadow, bool, 0644); #define ACC_USER_MASK PT_USER_MASK #define ACC_ALL (ACC_EXEC_MASK | ACC_WRITE_MASK | ACC_USER_MASK) +#include <trace/events/kvm.h> + +#undef TRACE_INCLUDE_FILE #define CREATE_TRACE_POINTS #include "mmutrace.h" @@ -792,6 +795,7 @@ static int kvm_handle_hva(struct kvm *kvm, unsigned long hva, unsigned long data)) { int i, j; + int ret; int retval = 0; struct kvm_memslots *slots; @@ -806,16 +810,17 @@ static int kvm_handle_hva(struct kvm *kvm, unsigned long hva, if (hva >= start && hva < end) { gfn_t gfn_offset = (hva - start) >> PAGE_SHIFT; - retval |= handler(kvm, &memslot->rmap[gfn_offset], - data); + ret = handler(kvm, &memslot->rmap[gfn_offset], data); for (j = 0; j < KVM_NR_PAGE_SIZES - 1; ++j) { int idx = gfn_offset; idx /= KVM_PAGES_PER_HPAGE(PT_DIRECTORY_LEVEL + j); - retval |= handler(kvm, + ret |= handler(kvm, &memslot->lpage_info[j][idx].rmap_pde, data); } + trace_kvm_age_page(hva, memslot, ret); + retval |= ret; } } |