KVM: PPC: Book3S PR: Handle Facility interrupt and FSCR
POWER8 introduced a new interrupt type called "Facility unavailable interrupt"
which contains its status message in a new register called FSCR.
Handle these exits and try to emulate instructions for unhandled facilities.
Follow-on patches enable KVM to expose specific facilities into the guest.
Signed-off-by: Alexander Graf <agraf@suse.de>
diff --git a/arch/powerpc/kvm/book3s_emulate.c b/arch/powerpc/kvm/book3s_emulate.c
index 0a1de29..e8133e5 100644
--- a/arch/powerpc/kvm/book3s_emulate.c
+++ b/arch/powerpc/kvm/book3s_emulate.c
@@ -438,6 +438,9 @@
case SPRN_GQR7:
to_book3s(vcpu)->gqr[sprn - SPRN_GQR0] = spr_val;
break;
+ case SPRN_FSCR:
+ vcpu->arch.fscr = spr_val;
+ break;
case SPRN_ICTC:
case SPRN_THRM1:
case SPRN_THRM2:
@@ -545,6 +548,9 @@
case SPRN_GQR7:
*spr_val = to_book3s(vcpu)->gqr[sprn - SPRN_GQR0];
break;
+ case SPRN_FSCR:
+ *spr_val = vcpu->arch.fscr;
+ break;
case SPRN_THRM1:
case SPRN_THRM2:
case SPRN_THRM3: