On Tue, May 5, 2020 at 2:22 PM Ashish Kalra <Ashish.Kalra@xxxxxxx> wrote: > > From: Ashish Kalra <ashish.kalra@xxxxxxx> > > For source VM, live migration feature is enabled explicitly > when the guest is booting, for the incoming VM(s) it is implied. > This is required for handling A->B->C->... VM migrations case. > > Signed-off-by: Ashish Kalra <ashish.kalra@xxxxxxx> > --- > arch/x86/kvm/svm/sev.c | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/arch/x86/kvm/svm/sev.c b/arch/x86/kvm/svm/sev.c > index 6f69c3a47583..ba7c0ebfa1f3 100644 > --- a/arch/x86/kvm/svm/sev.c > +++ b/arch/x86/kvm/svm/sev.c > @@ -1592,6 +1592,13 @@ int svm_set_page_enc_bitmap(struct kvm *kvm, > if (ret) > goto unlock; > > + /* > + * For source VM, live migration feature is enabled > + * explicitly when the guest is booting, for the > + * incoming VM(s) it is implied. > + */ > + sev_update_migration_flags(kvm, KVM_SEV_LIVE_MIGRATION_ENABLED); > + > bitmap_copy(sev->page_enc_bmap + BIT_WORD(gfn_start), bitmap, > (gfn_end - gfn_start)); > > -- > 2.17.1 > Reviewed-by: Steve Rutherford <srutherford@xxxxxxxxxx>
