From: Joerg Roedel Date: Wed, 30 Apr 2008 15:56:04 +0000 (+0200) Subject: KVM: SVM: add tracing support for TDP page faults X-Git-Tag: v2.6.27-rc1~968^2~62 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d2ebb4103ff349af6dac14955bf93e57487a6694;p=linux-2.6 KVM: SVM: add tracing support for TDP page faults To distinguish between real page faults and nested page faults they should be traced as different events. This is implemented by this patch. Signed-off-by: Joerg Roedel Signed-off-by: Avi Kivity --- diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 8953292acf..218949cce1 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -1011,6 +1011,10 @@ static int pf_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run) KVMTRACE_3D(PAGE_FAULT, &svm->vcpu, error_code, (u32)fault_address, (u32)(fault_address >> 32), handler); + else + KVMTRACE_3D(TDP_FAULT, &svm->vcpu, error_code, + (u32)fault_address, (u32)(fault_address >> 32), + handler); return kvm_mmu_page_fault(&svm->vcpu, fault_address, error_code); } diff --git a/include/asm-x86/kvm.h b/include/asm-x86/kvm.h index 80eefef2cc..6f1840812e 100644 --- a/include/asm-x86/kvm.h +++ b/include/asm-x86/kvm.h @@ -228,5 +228,6 @@ struct kvm_pit_state { #define KVM_TRC_CLTS (KVM_TRC_HANDLER + 0x12) #define KVM_TRC_LMSW (KVM_TRC_HANDLER + 0x13) #define KVM_TRC_APIC_ACCESS (KVM_TRC_HANDLER + 0x14) +#define KVM_TRC_TDP_FAULT (KVM_TRC_HANDLER + 0x15) #endif