[RFC PATCH 06/10] KVM: PPC: BOOK3S: PR: Emulate DPDES register
From: Aneesh Kumar K.V <hidden>
Date: 2014-01-28 16:44:37
Also in:
kvm
Subsystem:
kernel virtual machine for powerpc (kvm/powerpc), linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Michael Ellerman, Linus Torvalds
Since we don't support SMT yet, we should always find zero in Directed privileged doorbell exception state register. Signed-off-by: Aneesh Kumar K.V <redacted> --- arch/powerpc/kvm/book3s_emulate.c | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/arch/powerpc/kvm/book3s_emulate.c b/arch/powerpc/kvm/book3s_emulate.c
index 9cf0392e3dcf..7f25adbd2590 100644
--- a/arch/powerpc/kvm/book3s_emulate.c
+++ b/arch/powerpc/kvm/book3s_emulate.c@@ -585,6 +585,12 @@ int kvmppc_core_emulate_mfspr_pr(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val */ *spr_val = 0; break; + case SPRN_DPDES: + /* + * We don't have SMT support for PR yet, hence always return 0 + */ + *spr_val = 0; + break; default: unprivileged: printk(KERN_INFO "KVM: invalid SPR read: %d\n", sprn);
--
1.8.5.3