KVM: PPC: Remove DCR handling

DCR handling was only needed for 440 KVM. Since we removed it, we can also
remove handling of DCR accesses.

Signed-off-by: Alexander Graf <agraf@suse.de>

4 files changed, 0 insertions, 19 deletions

diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c
index f30948a17c03..b4c89fa6f109 100644
--- a/arch/powerpc/kvm/booke.c
+++ b/arch/powerpc/kvm/booke.c
@@ -51,7 +51,6 @@ unsigned long kvmppc_booke_handlers;
 
 struct kvm_stats_debugfs_item debugfs_entries[] = {
 	{ "mmio",       VCPU_STAT(mmio_exits) },
-	{ "dcr",        VCPU_STAT(dcr_exits) },
 	{ "sig",        VCPU_STAT(signal_exits) },
 	{ "itlb_r",     VCPU_STAT(itlb_real_miss_exits) },
 	{ "itlb_v",     VCPU_STAT(itlb_virt_miss_exits) },
@@ -709,10 +708,6 @@ static int emulation_exit(struct kvm_run *run, struct kvm_vcpu *vcpu)
 	case EMULATE_AGAIN:
 		return RESUME_GUEST;
 
-	case EMULATE_DO_DCR:
-		run->exit_reason = KVM_EXIT_DCR;
-		return RESUME_HOST;
-
 	case EMULATE_FAIL:
 		printk(KERN_CRIT "%s: emulation at %lx failed (%08x)\n",
 		       __func__, vcpu->arch.pc, vcpu->arch.last_inst);
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index c14ed15fd60b..288b4bb05cbd 100644
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@@ -743,12 +743,6 @@ void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu)
 #endif
 }
 
-static void kvmppc_complete_dcr_load(struct kvm_vcpu *vcpu,
-                                     struct kvm_run *run)
-{
-	kvmppc_set_gpr(vcpu, vcpu->arch.io_gpr, run->dcr.data);
-}
-
 static void kvmppc_complete_mmio_load(struct kvm_vcpu *vcpu,
                                       struct kvm_run *run)
 {
@@ -945,10 +939,6 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *run)
 		if (!vcpu->mmio_is_write)
 			kvmppc_complete_mmio_load(vcpu, run);
 		vcpu->mmio_needed = 0;
-	} else if (vcpu->arch.dcr_needed) {
-		if (!vcpu->arch.dcr_is_write)
-			kvmppc_complete_dcr_load(vcpu, run);
-		vcpu->arch.dcr_needed = 0;
 	} else if (vcpu->arch.osi_needed) {
 		u64 *gprs = run->osi.gprs;
 		int i;
diff --git a/arch/powerpc/kvm/timing.c b/arch/powerpc/kvm/timing.c
index 07b6110a4bb7..e44d2b2ea97e 100644
--- a/arch/powerpc/kvm/timing.c
+++ b/arch/powerpc/kvm/timing.c
@@ -110,7 +110,6 @@ void kvmppc_update_timing_stats(struct kvm_vcpu *vcpu)
 
 static const char *kvm_exit_names[__NUMBER_OF_KVM_EXIT_TYPES] = {
 	[MMIO_EXITS] =              "MMIO",
-	[DCR_EXITS] =               "DCR",
 	[SIGNAL_EXITS] =            "SIGNAL",
 	[ITLB_REAL_MISS_EXITS] =    "ITLBREAL",
 	[ITLB_VIRT_MISS_EXITS] =    "ITLBVIRT",
diff --git a/arch/powerpc/kvm/timing.h b/arch/powerpc/kvm/timing.h
index bf191e72b2d8..3123690c82dc 100644
--- a/arch/powerpc/kvm/timing.h
+++ b/arch/powerpc/kvm/timing.h
@@ -63,9 +63,6 @@ static inline void kvmppc_account_exit_stat(struct kvm_vcpu *vcpu, int type)
 	case EMULATED_INST_EXITS:
 		vcpu->stat.emulated_inst_exits++;
 		break;
-	case DCR_EXITS:
-		vcpu->stat.dcr_exits++;
-		break;
 	case DSI_EXITS:
 		vcpu->stat.dsi_exits++;
 		break;