diff --git a/arch/powerpc/include/asm/kvm_book3s.h b/arch/powerpc/include/asm/kvm_book3s.h
index 942c7b1..578e550 100644
--- a/arch/powerpc/include/asm/kvm_book3s.h
+++ b/arch/powerpc/include/asm/kvm_book3s.h
@@ -292,6 +292,9 @@ static inline bool kvmppc_supports_magic_page(struct kvm_vcpu *vcpu)
 	return !is_kvmppc_hv_enabled(vcpu->kvm);
 }
 
+extern int kvmppc_h_logical_ci_load(struct kvm_vcpu *vcpu);
+extern int kvmppc_h_logical_ci_store(struct kvm_vcpu *vcpu);
+
 /* Magic register values loaded into r3 and r4 before the 'sc' assembly
  * instruction for the OSI hypercalls */
 #define OSI_SC_MAGIC_R3			0x113724FA
diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c
index 888bf46..397f433 100644
--- a/arch/powerpc/kvm/book3s.c
+++ b/arch/powerpc/kvm/book3s.c
@@ -820,6 +820,82 @@ void kvmppc_core_destroy_vm(struct kvm *kvm)
 #endif
 }
 
+int kvmppc_h_logical_ci_load(struct kvm_vcpu *vcpu)
+{
+	unsigned long size = kvmppc_get_gpr(vcpu, 4);
+	unsigned long addr = kvmppc_get_gpr(vcpu, 5);
+	u64 buf;
+	int ret;
+
+	if (!is_power_of_2(size) || (size > sizeof(buf)))
+		return H_TOO_HARD;
+
+	ret = kvm_io_bus_read(vcpu->kvm, KVM_MMIO_BUS, addr, size, &buf);
+	if (ret != 0)
+		return H_TOO_HARD;
+
+	switch (size) {
+	case 1:
+		kvmppc_set_gpr(vcpu, 4, *(u8 *)&buf);
+		break;
+
+	case 2:
+		kvmppc_set_gpr(vcpu, 4, be16_to_cpu(*(__be16 *)&buf));
+		break;
+
+	case 4:
+		kvmppc_set_gpr(vcpu, 4, be32_to_cpu(*(__be32 *)&buf));
+		break;
+
+	case 8:
+		kvmppc_set_gpr(vcpu, 4, be64_to_cpu(*(__be64 *)&buf));
+		break;
+
+	default:
+		BUG();
+	}
+
+	return H_SUCCESS;
+}
+EXPORT_SYMBOL_GPL(kvmppc_h_logical_ci_load);
+
+int kvmppc_h_logical_ci_store(struct kvm_vcpu *vcpu)
+{
+	unsigned long size = kvmppc_get_gpr(vcpu, 4);
+	unsigned long addr = kvmppc_get_gpr(vcpu, 5);
+	unsigned long val = kvmppc_get_gpr(vcpu, 6);
+	u64 buf;
+	int ret;
+
+	switch (size) {
+	case 1:
+		*(u8 *)&buf = val;
+		break;
+
+	case 2:
+		*(__be16 *)&buf = cpu_to_be16(val);
+		break;
+
+	case 4:
+		*(__be32 *)&buf = cpu_to_be32(val);
+		break;
+
+	case 8:
+		*(__be64 *)&buf = cpu_to_be64(val);
+		break;
+
+	default:
+		return H_TOO_HARD;
+	}
+
+	ret = kvm_io_bus_write(vcpu->kvm, KVM_MMIO_BUS, addr, size, &buf);
+	if (ret != 0)
+		return H_TOO_HARD;
+
+	return H_SUCCESS;
+}
+EXPORT_SYMBOL_GPL(kvmppc_h_logical_ci_store);
+
 int kvmppc_core_check_processor_compat(void)
 {
 	/*
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index de4018a..f631b76 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -706,6 +706,16 @@ int kvmppc_pseries_do_hcall(struct kvm_vcpu *vcpu)
 
 		/* Send the error out to userspace via KVM_RUN */
 		return rc;
+	case H_LOGICAL_CI_LOAD:
+		ret = kvmppc_h_logical_ci_load(vcpu);
+		if (ret == H_TOO_HARD)
+			return RESUME_HOST;
+		break;
+	case H_LOGICAL_CI_STORE:
+		ret = kvmppc_h_logical_ci_store(vcpu);
+		if (ret == H_TOO_HARD)
+			return RESUME_HOST;
+		break;
 	case H_SET_MODE:
 		ret = kvmppc_h_set_mode(vcpu, kvmppc_get_gpr(vcpu, 4),
 					kvmppc_get_gpr(vcpu, 5),
@@ -740,6 +750,8 @@ static int kvmppc_hcall_impl_hv(unsigned long cmd)
 	case H_CONFER:
 	case H_REGISTER_VPA:
 	case H_SET_MODE:
+	case H_LOGICAL_CI_LOAD:
+	case H_LOGICAL_CI_STORE:
 #ifdef CONFIG_KVM_XICS
 	case H_XIRR:
 	case H_CPPR:
diff --git a/arch/powerpc/kvm/book3s_pr_papr.c b/arch/powerpc/kvm/book3s_pr_papr.c
index ce3c893..f2c75a1 100644
--- a/arch/powerpc/kvm/book3s_pr_papr.c
+++ b/arch/powerpc/kvm/book3s_pr_papr.c
@@ -258,6 +258,28 @@ static int kvmppc_h_pr_put_tce(struct kvm_vcpu *vcpu)
 	return EMULATE_DONE;
 }
 
+static int kvmppc_h_pr_logical_ci_load(struct kvm_vcpu *vcpu)
+{
+	long rc;
+
+	rc = kvmppc_h_logical_ci_load(vcpu);
+	if (rc == H_TOO_HARD)
+		return EMULATE_FAIL;
+	kvmppc_set_gpr(vcpu, 3, rc);
+	return EMULATE_DONE;
+}
+
+static int kvmppc_h_pr_logical_ci_store(struct kvm_vcpu *vcpu)
+{
+	long rc;
+
+	rc = kvmppc_h_logical_ci_store(vcpu);
+	if (rc == H_TOO_HARD)
+		return EMULATE_FAIL;
+	kvmppc_set_gpr(vcpu, 3, rc);
+	return EMULATE_DONE;
+}
+
 static int kvmppc_h_pr_xics_hcall(struct kvm_vcpu *vcpu, u32 cmd)
 {
 	long rc = kvmppc_xics_hcall(vcpu, cmd);
@@ -290,6 +312,10 @@ int kvmppc_h_pr(struct kvm_vcpu *vcpu, unsigned long cmd)
 		clear_bit(KVM_REQ_UNHALT, &vcpu->requests);
 		vcpu->stat.halt_wakeup++;
 		return EMULATE_DONE;
+	case H_LOGICAL_CI_LOAD:
+		return kvmppc_h_pr_logical_ci_load(vcpu);
+	case H_LOGICAL_CI_STORE:
+		return kvmppc_h_pr_logical_ci_store(vcpu);
 	case H_XIRR:
 	case H_CPPR:
 	case H_EOI:
@@ -323,6 +349,8 @@ int kvmppc_hcall_impl_pr(unsigned long cmd)
 	case H_BULK_REMOVE:
 	case H_PUT_TCE:
 	case H_CEDE:
+	case H_LOGICAL_CI_LOAD:
+	case H_LOGICAL_CI_STORE:
 #ifdef CONFIG_KVM_XICS
 	case H_XIRR:
 	case H_CPPR:
