diff options
| -rw-r--r-- | arch/x86/include/asm/kvm_host.h | 7 | ||||
| -rw-r--r-- | arch/x86/kvm/svm/svm.c | 9 | ||||
| -rw-r--r-- | arch/x86/kvm/trace.h | 12 | ||||
| -rw-r--r-- | arch/x86/kvm/vmx/vmx.c | 18 |
4 files changed, 39 insertions, 7 deletions
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index a4a68b2b38d5..3f0ccb646db8 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -1143,7 +1143,12 @@ struct kvm_x86_ops { /* Returns actual tsc_offset set in active VMCS */ u64 (*write_l1_tsc_offset)(struct kvm_vcpu *vcpu, u64 offset); - void (*get_exit_info)(struct kvm_vcpu *vcpu, u64 *info1, u64 *info2); + /* + * Retrieve somewhat arbitrary exit information. Intended to be used + * only from within tracepoints to avoid VMREADs when tracing is off. + */ + void (*get_exit_info)(struct kvm_vcpu *vcpu, u64 *info1, u64 *info2, + u32 *exit_int_info, u32 *exit_int_info_err_code); int (*check_intercept)(struct kvm_vcpu *vcpu, struct x86_instruction_info *info, diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c index c02c2d4c0400..eb0a97d687a4 100644 --- a/arch/x86/kvm/svm/svm.c +++ b/arch/x86/kvm/svm/svm.c @@ -2965,12 +2965,19 @@ static void dump_vmcb(struct kvm_vcpu *vcpu) "excp_to:", save->last_excp_to); } -static void svm_get_exit_info(struct kvm_vcpu *vcpu, u64 *info1, u64 *info2) +static void svm_get_exit_info(struct kvm_vcpu *vcpu, u64 *info1, u64 *info2, + u32 *intr_info, u32 *error_code) { struct vmcb_control_area *control = &to_svm(vcpu)->vmcb->control; *info1 = control->exit_info_1; *info2 = control->exit_info_2; + *intr_info = control->exit_int_info; + if ((*intr_info & SVM_EXITINTINFO_VALID) && + (*intr_info & SVM_EXITINTINFO_VALID_ERR)) + *error_code = control->exit_int_info_err; + else + *error_code = 0; } static int handle_exit(struct kvm_vcpu *vcpu, fastpath_t exit_fastpath) diff --git a/arch/x86/kvm/trace.h b/arch/x86/kvm/trace.h index bb5e44f83262..7e3ad6419f90 100644 --- a/arch/x86/kvm/trace.h +++ b/arch/x86/kvm/trace.h @@ -248,6 +248,8 @@ TRACE_EVENT(kvm_exit, __field( u32, isa ) __field( u64, info1 ) __field( u64, info2 ) + __field( u32, intr_info ) + __field( u32, error_code ) __field( unsigned int, vcpu_id ) ), @@ -257,13 +259,17 @@ TRACE_EVENT(kvm_exit, __entry->isa = isa; __entry->vcpu_id = vcpu->vcpu_id; kvm_x86_ops.get_exit_info(vcpu, &__entry->info1, - &__entry->info2); + &__entry->info2, + &__entry->intr_info, + &__entry->error_code); ), - TP_printk("vcpu %u reason %s%s%s rip 0x%lx info %llx %llx", + TP_printk("vcpu %u reason %s%s%s rip 0x%lx info1 0x%016llx " + "info2 0x%016llx intr_info 0x%08x error_code 0x%08x", __entry->vcpu_id, kvm_print_exit_reason(__entry->exit_reason, __entry->isa), - __entry->guest_rip, __entry->info1, __entry->info2) + __entry->guest_rip, __entry->info1, __entry->info2, + __entry->intr_info, __entry->error_code) ); /* diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c index d87c8d2892ca..bac423abcfda 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -5545,10 +5545,24 @@ static int (*kvm_vmx_exit_handlers[])(struct kvm_vcpu *vcpu) = { static const int kvm_vmx_max_exit_handlers = ARRAY_SIZE(kvm_vmx_exit_handlers); -static void vmx_get_exit_info(struct kvm_vcpu *vcpu, u64 *info1, u64 *info2) +static void vmx_get_exit_info(struct kvm_vcpu *vcpu, u64 *info1, u64 *info2, + u32 *intr_info, u32 *error_code) { + struct vcpu_vmx *vmx = to_vmx(vcpu); + *info1 = vmx_get_exit_qual(vcpu); - *info2 = vmx_get_intr_info(vcpu); + if (!(vmx->exit_reason & VMX_EXIT_REASONS_FAILED_VMENTRY)) { + *info2 = vmx->idt_vectoring_info; + *intr_info = vmx_get_intr_info(vcpu); + if (is_exception_with_error_code(*intr_info)) + *error_code = vmcs_read32(VM_EXIT_INTR_ERROR_CODE); + else + *error_code = 0; + } else { + *info2 = 0; + *intr_info = 0; + *error_code = 0; + } } static void vmx_destroy_pml_buffer(struct vcpu_vmx *vmx) |