Patchwork [v1,KVM,1/1] kvm:ppc:booehv: direct ISI exception to Guest

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Submitter Tiejun Chen
Date May 7, 2013, 11:06 a.m.
Message ID <1367924791-24394-1-git-send-email-tiejun.chen@windriver.com>
Download mbox | patch
Permalink /patch/242174/
State Not Applicable
Headers show

Comments

Tiejun Chen - May 7, 2013, 11:06 a.m.
We also can direct ISI exception to Guest like DSI.

Signed-off-by: Tiejun Chen <tiejun.chen@windriver.com>
---
 arch/powerpc/kvm/booke_emulate.c |    3 +++
 arch/powerpc/kvm/e500mc.c        |    3 ++-
 2 files changed, 5 insertions(+), 1 deletion(-)

Patch

diff --git a/arch/powerpc/kvm/booke_emulate.c b/arch/powerpc/kvm/booke_emulate.c
index 27a4b28..33b14e9 100644
--- a/arch/powerpc/kvm/booke_emulate.c
+++ b/arch/powerpc/kvm/booke_emulate.c
@@ -197,6 +197,9 @@  int kvmppc_booke_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, ulong spr_val)
 		break;
 	case SPRN_IVOR3:
 		vcpu->arch.ivor[BOOKE_IRQPRIO_INST_STORAGE] = spr_val;
+#ifdef CONFIG_KVM_BOOKE_HV
+		mtspr(SPRN_GIVOR3, spr_val);
+#endif
 		break;
 	case SPRN_IVOR4:
 		vcpu->arch.ivor[BOOKE_IRQPRIO_EXTERNAL] = spr_val;
diff --git a/arch/powerpc/kvm/e500mc.c b/arch/powerpc/kvm/e500mc.c
index c3bdc0a..acf546a 100644
--- a/arch/powerpc/kvm/e500mc.c
+++ b/arch/powerpc/kvm/e500mc.c
@@ -123,6 +123,7 @@  void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
 
 	mtspr(SPRN_GIVPR, vcpu->arch.ivpr);
 	mtspr(SPRN_GIVOR2, vcpu->arch.ivor[BOOKE_IRQPRIO_DATA_STORAGE]);
+	mtspr(SPRN_GIVOR3, vcpu->arch.ivor[BOOKE_IRQPRIO_INST_STORAGE]);
 	mtspr(SPRN_GIVOR8, vcpu->arch.ivor[BOOKE_IRQPRIO_SYSCALL]);
 	mtspr(SPRN_GSPRG0, (unsigned long)vcpu->arch.shared->sprg0);
 	mtspr(SPRN_GSPRG1, (unsigned long)vcpu->arch.shared->sprg1);
@@ -185,7 +186,7 @@  int kvmppc_core_vcpu_setup(struct kvm_vcpu *vcpu)
 	struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
 
 	vcpu->arch.shadow_epcr = SPRN_EPCR_DSIGS | SPRN_EPCR_DGTMI | \
-				 SPRN_EPCR_DUVD;
+				 SPRN_EPCR_DUVD | SPRN_EPCR_ISIGS;
 #ifdef CONFIG_64BIT
 	vcpu->arch.shadow_epcr |= SPRN_EPCR_ICM;
 #endif