Commit 671d9ab3 authored Nov 20, 2015 by Borislav Petkov Committed by Paolo Bonzini Dec 16, 2015

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>

parent 8a86aea9

include/linux/kvm_host.h

+2 −1

Original line number	Diff line number	Diff line
		@@ -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__)