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[06/15] KVM: PPC: Don't reload FPU with invalid values

Message ID 1268071402-27112-7-git-send-email-agraf@suse.de (mailing list archive)
State New, archived
Headers show

Commit Message

Alexander Graf March 8, 2010, 6:03 p.m. UTC 
None
diff mbox

Patch

diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c
index 400ae0a..029e1be 100644
--- a/arch/powerpc/kvm/book3s.c
+++ b/arch/powerpc/kvm/book3s.c
@@ -701,6 +701,11 @@  static int kvmppc_handle_ext(struct kvm_vcpu *vcpu, unsigned int exit_nr,
 		return RESUME_GUEST;
 	}
 
+	/* We already own the ext */
+	if (vcpu->arch.guest_owned_ext & msr) {
+		return RESUME_GUEST;
+	}
+
 #ifdef DEBUG_EXT
 	printk(KERN_INFO "Loading up ext 0x%lx\n", msr);
 #endif