Messages in this thread | | | Date | Fri, 29 Jul 2022 15:03:05 +0300 | From | Jarkko Sakkinen <> | Subject | Re: [PATCH] KVM: SVM: Dump Virtual Machine Save Area (VMSA) to klog |
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On Thu, Jul 28, 2022 at 05:15:43PM +0200, Paolo Bonzini wrote: > On 7/28/22 07:09, Jarkko Sakkinen wrote: > > As Virtual Machine Save Area (VMSA) is essential in troubleshooting > > attestation, dump it to the klog with the KERN_DEBUG level of priority. > > > > Cc: Jarkko Sakkinen <jarkko@kernel.org> > > Suggested-by: Harald Hoyer <harald@profian.com> > > Signed-off-by: Jarkko Sakkinen <jarkko@profian.com> > > --- > > arch/x86/kvm/svm/sev.c | 3 +++ > > 1 file changed, 3 insertions(+) > > > > diff --git a/arch/x86/kvm/svm/sev.c b/arch/x86/kvm/svm/sev.c > > index 0c240ed04f96..6d44aaba321a 100644 > > --- a/arch/x86/kvm/svm/sev.c > > +++ b/arch/x86/kvm/svm/sev.c > > @@ -603,6 +603,9 @@ static int sev_es_sync_vmsa(struct vcpu_svm *svm) > > save->xss = svm->vcpu.arch.ia32_xss; > > save->dr6 = svm->vcpu.arch.dr6; > > + pr_debug("Virtual Machine Save Area (VMSA):\n"); > > + print_hex_dump(KERN_CONT, "", DUMP_PREFIX_NONE, 16, 1, save, sizeof(*save), false); > > + > > return 0; > > } > > Queued, thanks. > > Paolo
Ugh, I made a mistake, sorry.
It should have been:
print_hex_dump(KERN_DEBUG, "VMSA:", DUMP_PREFIX_NONE, 16, 1, save, sizeof(*save), false);
I sent wrong version of the patch.
BR, Jarkko
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