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| author |   Borislav Petkov <bp@suse.de> | 2015-11-20 19:52:12 +0100 |
|---|---|---|
| committer |   Paolo Bonzini <pbonzini@redhat.com> | 2015-12-16 18:49:48 +0100 |
| commit | 671d9ab38097fae45ff4f24562789b98b51d37ec (patch) | |
| tree | b6ab3a4d95066376ef5354f8b2fe6903c0e106f6 | |
| parent | KVM: vmx: detect mismatched size in VMCS read/write (diff) | |
| download | linux-dev-671d9ab38097fae45ff4f24562789b98b51d37ec.tar.xz linux-dev-671d9ab38097fae45ff4f24562789b98b51d37ec.zip | |
kvm: Dump guest rIP when the guest tried something unsupported
It looks like this in action:
kvm [5197]: vcpu0, guest rIP: 0xffffffff810187ba unhandled rdmsr: 0xc001102
and helps to pinpoint quickly where in the guest we did the unsupported
thing.
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| -rw-r--r-- | include/linux/kvm_host.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 2969c474a399..61c3e6c69f27 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -447,7 +447,8 @@ struct kvm { /* The guest did something we don't support. */ #define vcpu_unimpl(vcpu, fmt, ...) \ - kvm_pr_unimpl("vcpu%i " fmt, (vcpu)->vcpu_id, ## __VA_ARGS__) + kvm_pr_unimpl("vcpu%i, guest rIP: 0x%lx " fmt, \ + (vcpu)->vcpu_id, kvm_rip_read(vcpu), ## __VA_ARGS__) #define vcpu_debug(vcpu, fmt, ...) \ kvm_debug("vcpu%i " fmt, (vcpu)->vcpu_id, ## __VA_ARGS__) |