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| author | Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com> | 2011-11-28 20:41:00 +0800 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2011-12-27 11:22:05 +0200 |
| commit | 0375f7fad904b59502341ccecfc8faea70b34c91 (patch) | |
| tree | 23de875b6c9d4cb267738860dc27db1289bee1fa /arch/x86/kvm/mmu.c | |
| parent | a65cf5181aa608addcb2873c8ed90413a9f539cb (diff) | |
| download | linux-stable-0375f7fad904b59502341ccecfc8faea70b34c91.tar.gz linux-stable-0375f7fad904b59502341ccecfc8faea70b34c91.tar.bz2 linux-stable-0375f7fad904b59502341ccecfc8faea70b34c91.zip | |
KVM: MMU: audit: replace mmu audit tracepoint with jump-label
The tracepoint is only used to audit mmu code, it should not be exposed to
user, let us replace it with jump-label.
Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/x86/kvm/mmu.c')
| -rw-r--r-- | arch/x86/kvm/mmu.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index d737443cdfdb..62f69dbf6b52 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -68,6 +68,12 @@ char *audit_point_name[] = { "post sync" }; +#ifdef CONFIG_KVM_MMU_AUDIT +static void kvm_mmu_audit(struct kvm_vcpu *vcpu, int point); +#else +static void kvm_mmu_audit(struct kvm_vcpu *vcpu, int point) { } +#endif + #undef MMU_DEBUG #ifdef MMU_DEBUG @@ -2852,12 +2858,12 @@ static void mmu_sync_roots(struct kvm_vcpu *vcpu) return; vcpu_clear_mmio_info(vcpu, ~0ul); - trace_kvm_mmu_audit(vcpu, AUDIT_PRE_SYNC); + kvm_mmu_audit(vcpu, AUDIT_PRE_SYNC); if (vcpu->arch.mmu.root_level == PT64_ROOT_LEVEL) { hpa_t root = vcpu->arch.mmu.root_hpa; sp = page_header(root); mmu_sync_children(vcpu, sp); - trace_kvm_mmu_audit(vcpu, AUDIT_POST_SYNC); + kvm_mmu_audit(vcpu, AUDIT_POST_SYNC); return; } for (i = 0; i < 4; ++i) { @@ -2869,7 +2875,7 @@ static void mmu_sync_roots(struct kvm_vcpu *vcpu) mmu_sync_children(vcpu, sp); } } - trace_kvm_mmu_audit(vcpu, AUDIT_POST_SYNC); + kvm_mmu_audit(vcpu, AUDIT_POST_SYNC); } void kvm_mmu_sync_roots(struct kvm_vcpu *vcpu) @@ -3667,7 +3673,7 @@ void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa, spin_lock(&vcpu->kvm->mmu_lock); ++vcpu->kvm->stat.mmu_pte_write; - trace_kvm_mmu_audit(vcpu, AUDIT_PRE_PTE_WRITE); + kvm_mmu_audit(vcpu, AUDIT_PRE_PTE_WRITE); mask.cr0_wp = mask.cr4_pae = mask.nxe = 1; for_each_gfn_indirect_valid_sp(vcpu->kvm, sp, gfn, node) { @@ -3700,7 +3706,7 @@ void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa, } mmu_pte_write_flush_tlb(vcpu, zap_page, remote_flush, local_flush); kvm_mmu_commit_zap_page(vcpu->kvm, &invalid_list); - trace_kvm_mmu_audit(vcpu, AUDIT_POST_PTE_WRITE); + kvm_mmu_audit(vcpu, AUDIT_POST_PTE_WRITE); spin_unlock(&vcpu->kvm->mmu_lock); } |