Patchwork [RFC,05/10] KVM: PPC: BOOK3S: PR: Doorbell support

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Submitter Aneesh Kumar K.V
Date Jan. 28, 2014, 4:44 p.m.
Message ID <1390927455-3312-6-git-send-email-aneesh.kumar@linux.vnet.ibm.com>
Download mbox | patch
Permalink /patch/314757/
State New
Headers show

Comments

Aneesh Kumar K.V - Jan. 28, 2014, 4:44 p.m.
We don't have SMT support yet, hence we should not find a doorbell
message generated

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
---
 arch/powerpc/kvm/book3s_emulate.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

Patch

diff --git a/arch/powerpc/kvm/book3s_emulate.c b/arch/powerpc/kvm/book3s_emulate.c
index e74dda36ebea..9cf0392e3dcf 100644
--- a/arch/powerpc/kvm/book3s_emulate.c
+++ b/arch/powerpc/kvm/book3s_emulate.c
@@ -28,7 +28,9 @@ 
 #define OP_19_XOP_RFI		50
 
 #define OP_31_XOP_MFMSR		83
+#define OP_31_XOP_MSGSNDP	142
 #define OP_31_XOP_MTMSR		146
+#define OP_31_XOP_MSGCLRP	174
 #define OP_31_XOP_MTMSRD	178
 #define OP_31_XOP_MTSR		210
 #define OP_31_XOP_MTSRIN	242
@@ -286,6 +288,22 @@  int kvmppc_core_emulate_op_pr(struct kvm_run *run, struct kvm_vcpu *vcpu,
 
 			break;
 		}
+		case OP_31_XOP_MSGSNDP:
+		{
+			/*
+			 * PR KVM still don't support SMT mode. So we should
+			 * not see a MSGSNDP/MSGCLRP used with PR KVM
+			 */
+			pr_info("KVM: MSGSNDP used in non SMT case\n");
+			emulated = EMULATE_FAIL;
+			break;
+		}
+		case OP_31_XOP_MSGCLRP:
+		{
+			pr_info"KVM: MSGCLRP used in non SMT case\n");
+			emulated = EMULATE_FAIL;
+			break;
+		}
 		default:
 			emulated = EMULATE_FAIL;
 		}