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| author | Avi Kivity <avi@redhat.com> | 2010-11-18 14:09:54 +0300 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2011-01-12 12:29:41 +0300 |
| commit | 586f9607962cd982293759a4e95ff06e75be5225 (patch) | |
| tree | efce3a218f0268e4a066d1621d594951d6ac569e /arch/x86/kvm/svm.c | |
| parent | aa17911e3c21b63e3bf94c580ed029d6dad816b4 (diff) | |
| download | linux-586f9607962cd982293759a4e95ff06e75be5225.tar.xz | |
KVM: Add instruction-set-specific exit qualifications to kvm_exit trace
The exit reason alone is insufficient to understand exactly why an exit
occured; add ISA-specific trace parameters for additional information.
Because fetching these parameters is expensive on vmx, and because these
parameters are fetched even if tracing is disabled, we fetch the
parameters via a callback instead of as traditional trace arguments.
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/x86/kvm/svm.c')
| -rw-r--r-- | arch/x86/kvm/svm.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 78a23086e16d..28274cf307ba 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -2974,6 +2974,14 @@ void dump_vmcb(struct kvm_vcpu *vcpu) } +static void svm_get_exit_info(struct kvm_vcpu *vcpu, u64 *info1, u64 *info2) +{ + struct vmcb_control_area *control = &to_svm(vcpu)->vmcb->control; + + *info1 = control->exit_info_1; + *info2 = control->exit_info_2; +} + static int handle_exit(struct kvm_vcpu *vcpu) { struct vcpu_svm *svm = to_svm(vcpu); @@ -3684,7 +3692,9 @@ static struct kvm_x86_ops svm_x86_ops = { .get_tdp_level = get_npt_level, .get_mt_mask = svm_get_mt_mask, + .get_exit_info = svm_get_exit_info, .exit_reasons_str = svm_exit_reasons_str, + .get_lpage_level = svm_get_lpage_level, .cpuid_update = svm_cpuid_update, |