KVM: ppc: E500 core-specific code

Signed-off-by: Liu Yu <yu.liu@freescale.com>
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

1 files changed, 169 insertions, 0 deletions

diff --git a/arch/powerpc/kvm/e500_emulate.c b/arch/powerpc/kvm/e500_emulate.c
new file mode 100644
index 00000000000..a47f44cd2cf
--- /dev/null
+++ b/arch/powerpc/kvm/e500_emulate.c
@@ -0,0 +1,169 @@
+/*
+ * Copyright (C) 2008 Freescale Semiconductor, Inc. All rights reserved.
+ *
+ * Author: Yu Liu, <yu.liu@freescale.com>
+ *
+ * Description:
+ * This file is derived from arch/powerpc/kvm/44x_emulate.c,
+ * by Hollis Blanchard <hollisb@us.ibm.com>.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation.
+ */
+
+#include <asm/kvm_ppc.h>
+#include <asm/disassemble.h>
+#include <asm/kvm_e500.h>
+
+#include "booke.h"
+#include "e500_tlb.h"
+
+#define XOP_TLBIVAX 786
+#define XOP_TLBSX   914
+#define XOP_TLBRE   946
+#define XOP_TLBWE   978
+
+int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu,
+                           unsigned int inst, int *advance)
+{
+	int emulated = EMULATE_DONE;
+	int ra;
+	int rb;
+	int rs;
+	int rt;
+
+	switch (get_op(inst)) {
+	case 31:
+		switch (get_xop(inst)) {
+
+		case XOP_TLBRE:
+			emulated = kvmppc_e500_emul_tlbre(vcpu);
+			break;
+
+		case XOP_TLBWE:
+			emulated = kvmppc_e500_emul_tlbwe(vcpu);
+			break;
+
+		case XOP_TLBSX:
+			rb = get_rb(inst);
+			emulated = kvmppc_e500_emul_tlbsx(vcpu,rb);
+			break;
+
+		case XOP_TLBIVAX:
+			ra = get_ra(inst);
+			rb = get_rb(inst);
+			emulated = kvmppc_e500_emul_tlbivax(vcpu, ra, rb);
+			break;
+
+		default:
+			emulated = EMULATE_FAIL;
+		}
+
+		break;
+
+	default:
+		emulated = EMULATE_FAIL;
+	}
+
+	if (emulated == EMULATE_FAIL)
+		emulated = kvmppc_booke_emulate_op(run, vcpu, inst, advance);
+
+	return emulated;
+}
+
+int kvmppc_core_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, int rs)
+{
+	struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
+	int emulated = EMULATE_DONE;
+
+	switch (sprn) {
+	case SPRN_PID:
+		vcpu_e500->pid[0] = vcpu->arch.shadow_pid =
+			vcpu->arch.pid = vcpu->arch.gpr[rs];
+		break;
+	case SPRN_PID1:
+		vcpu_e500->pid[1] = vcpu->arch.gpr[rs]; break;
+	case SPRN_PID2:
+		vcpu_e500->pid[2] = vcpu->arch.gpr[rs]; break;
+	case SPRN_MAS0:
+		vcpu_e500->mas0 = vcpu->arch.gpr[rs]; break;
+	case SPRN_MAS1:
+		vcpu_e500->mas1 = vcpu->arch.gpr[rs]; break;
+	case SPRN_MAS2:
+		vcpu_e500->mas2 = vcpu->arch.gpr[rs]; break;
+	case SPRN_MAS3:
+		vcpu_e500->mas3 = vcpu->arch.gpr[rs]; break;
+	case SPRN_MAS4:
+		vcpu_e500->mas4 = vcpu->arch.gpr[rs]; break;
+	case SPRN_MAS6:
+		vcpu_e500->mas6 = vcpu->arch.gpr[rs]; break;
+	case SPRN_MAS7:
+		vcpu_e500->mas7 = vcpu->arch.gpr[rs]; break;
+	case SPRN_L1CSR1:
+		vcpu_e500->l1csr1 = vcpu->arch.gpr[rs]; break;
+	case SPRN_HID0:
+		vcpu_e500->hid0 = vcpu->arch.gpr[rs]; break;
+	case SPRN_HID1:
+		vcpu_e500->hid1 = vcpu->arch.gpr[rs]; break;
+
+	default:
+		emulated = kvmppc_booke_emulate_mtspr(vcpu, sprn, rs);
+	}
+
+	return emulated;
+}
+
+int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt)
+{
+	struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
+	int emulated = EMULATE_DONE;
+
+	switch (sprn) {
+	case SPRN_PID:
+		vcpu->arch.gpr[rt] = vcpu_e500->pid[0]; break;
+	case SPRN_PID1:
+		vcpu->arch.gpr[rt] = vcpu_e500->pid[1]; break;
+	case SPRN_PID2:
+		vcpu->arch.gpr[rt] = vcpu_e500->pid[2]; break;
+	case SPRN_MAS0:
+		vcpu->arch.gpr[rt] = vcpu_e500->mas0; break;
+	case SPRN_MAS1:
+		vcpu->arch.gpr[rt] = vcpu_e500->mas1; break;
+	case SPRN_MAS2:
+		vcpu->arch.gpr[rt] = vcpu_e500->mas2; break;
+	case SPRN_MAS3:
+		vcpu->arch.gpr[rt] = vcpu_e500->mas3; break;
+	case SPRN_MAS4:
+		vcpu->arch.gpr[rt] = vcpu_e500->mas4; break;
+	case SPRN_MAS6:
+		vcpu->arch.gpr[rt] = vcpu_e500->mas6; break;
+	case SPRN_MAS7:
+		vcpu->arch.gpr[rt] = vcpu_e500->mas7; break;
+
+	case SPRN_TLB0CFG:
+		vcpu->arch.gpr[rt] = mfspr(SPRN_TLB0CFG);
+		vcpu->arch.gpr[rt] &= ~0xfffUL;
+		vcpu->arch.gpr[rt] |= vcpu_e500->guest_tlb_size[0];
+		break;
+
+	case SPRN_TLB1CFG:
+		vcpu->arch.gpr[rt] = mfspr(SPRN_TLB1CFG);
+		vcpu->arch.gpr[rt] &= ~0xfffUL;
+		vcpu->arch.gpr[rt] |= vcpu_e500->guest_tlb_size[1];
+		break;
+
+	case SPRN_L1CSR1:
+		vcpu->arch.gpr[rt] = vcpu_e500->l1csr1; break;
+	case SPRN_HID0:
+		vcpu->arch.gpr[rt] = vcpu_e500->hid0; break;
+	case SPRN_HID1:
+		vcpu->arch.gpr[rt] = vcpu_e500->hid1; break;
+
+	default:
+		emulated = kvmppc_booke_emulate_mfspr(vcpu, sprn, rt);
+	}
+
+	return emulated;
+}
+