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kvm: Dump guest rIP when the guest tried something unsupported

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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>
This commit is contained in:
Borislav Petkov 2015-11-20 19:52:12 +01:00 committed by Paolo Bonzini
parent 8a86aea920
commit 671d9ab380
1 changed files with 2 additions and 1 deletions
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3
include/linux/kvm_host.h
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@ -447,7 +447,8 @@ struct kvm {
/* The guest did something we don't support. */ /* The guest did something we don't support. */
#define vcpu_unimpl(vcpu, fmt, ...) \ #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, ...) \ #define vcpu_debug(vcpu, fmt, ...) \
kvm_debug("vcpu%i " fmt, (vcpu)->vcpu_id, ## __VA_ARGS__) kvm_debug("vcpu%i " fmt, (vcpu)->vcpu_id, ## __VA_ARGS__)