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-rw-r--r--arch/powerpc/include/asm/kvm_host.h2
-rw-r--r--arch/powerpc/kvm/booke.c5
-rw-r--r--arch/powerpc/kvm/booke_emulate.c3
-rw-r--r--arch/powerpc/kvm/e500_emulate.c3
4 files changed, 13 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h
index dd783beb88b3..50ea12fd7bf5 100644
--- a/arch/powerpc/include/asm/kvm_host.h
+++ b/arch/powerpc/include/asm/kvm_host.h
@@ -418,7 +418,9 @@ struct kvm_vcpu_arch {
ulong mcsrr1;
ulong mcsr;
u32 dec;
+#ifdef CONFIG_BOOKE
u32 decar;
+#endif
u32 tbl;
u32 tbu;
u32 tcr;
diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c
index 72f13f4a06e0..86681eec60b1 100644
--- a/arch/powerpc/kvm/booke.c
+++ b/arch/powerpc/kvm/booke.c
@@ -1267,6 +1267,11 @@ void kvmppc_decrementer_func(unsigned long data)
{
struct kvm_vcpu *vcpu = (struct kvm_vcpu *)data;
+ if (vcpu->arch.tcr & TCR_ARE) {
+ vcpu->arch.dec = vcpu->arch.decar;
+ kvmppc_emulate_dec(vcpu);
+ }
+
kvmppc_set_tsr_bits(vcpu, TSR_DIS);
}
diff --git a/arch/powerpc/kvm/booke_emulate.c b/arch/powerpc/kvm/booke_emulate.c
index 6c76397f2af4..9eb9809eb13e 100644
--- a/arch/powerpc/kvm/booke_emulate.c
+++ b/arch/powerpc/kvm/booke_emulate.c
@@ -129,6 +129,9 @@ int kvmppc_booke_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, ulong spr_val)
kvmppc_set_tcr(vcpu, spr_val);
break;
+ case SPRN_DECAR:
+ vcpu->arch.decar = spr_val;
+ break;
/*
* Note: SPRG4-7 are user-readable.
* These values are loaded into the real SPRGs when resuming the
diff --git a/arch/powerpc/kvm/e500_emulate.c b/arch/powerpc/kvm/e500_emulate.c
index 8b99e076dc81..e04b0ef55ce0 100644
--- a/arch/powerpc/kvm/e500_emulate.c
+++ b/arch/powerpc/kvm/e500_emulate.c
@@ -269,6 +269,9 @@ int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val)
*spr_val = vcpu->arch.shared->mas7_3 >> 32;
break;
#endif
+ case SPRN_DECAR:
+ *spr_val = vcpu->arch.decar;
+ break;
case SPRN_TLB0CFG:
*spr_val = vcpu->arch.tlbcfg[0];
break;
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