[PATCH 05/37] KVM: ppc: Add dbsr in kvm_vcpu_arch
From: Avi Kivity
Date: Fri Feb 27 2009 - 05:31:00 EST
From: Hollis Blanchard <hollisb@xxxxxxxxxx>
Kernel for E500 need clear dbsr when startup.
So add dbsr register in kvm_vcpu_arch for BOOKE.
Signed-off-by: Liu Yu <yu.liu@xxxxxxxxxxxxx>
Signed-off-by: Hollis Blanchard <hollisb@xxxxxxxxxx>
Signed-off-by: Avi Kivity <avi@xxxxxxxxxx>
---
arch/powerpc/include/asm/kvm_host.h | 1 +
arch/powerpc/kvm/booke_emulate.c | 4 ++++
2 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h
index 65c4d49..50e5ce1 100644
--- a/arch/powerpc/include/asm/kvm_host.h
+++ b/arch/powerpc/include/asm/kvm_host.h
@@ -163,6 +163,7 @@ struct kvm_vcpu_arch {
u32 ccr1;
u32 dbcr0;
u32 dbcr1;
+ u32 dbsr;
#ifdef CONFIG_KVM_EXIT_TIMING
struct kvmppc_exit_timing timing_exit;
diff --git a/arch/powerpc/kvm/booke_emulate.c b/arch/powerpc/kvm/booke_emulate.c
index 8aa78f1..aebc65e 100644
--- a/arch/powerpc/kvm/booke_emulate.c
+++ b/arch/powerpc/kvm/booke_emulate.c
@@ -111,6 +111,8 @@ int kvmppc_booke_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, int rs)
vcpu->arch.dbcr0 = vcpu->arch.gpr[rs]; break;
case SPRN_DBCR1:
vcpu->arch.dbcr1 = vcpu->arch.gpr[rs]; break;
+ case SPRN_DBSR:
+ vcpu->arch.dbsr &= ~vcpu->arch.gpr[rs]; break;
case SPRN_TSR:
vcpu->arch.tsr &= ~vcpu->arch.gpr[rs]; break;
case SPRN_TCR:
@@ -204,6 +206,8 @@ int kvmppc_booke_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt)
vcpu->arch.gpr[rt] = vcpu->arch.dbcr0; break;
case SPRN_DBCR1:
vcpu->arch.gpr[rt] = vcpu->arch.dbcr1; break;
+ case SPRN_DBSR:
+ vcpu->arch.gpr[rt] = vcpu->arch.dbsr; break;
case SPRN_IVOR0:
vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_CRITICAL];
--
1.6.0.6
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