fedora kernel: d9aad82f3319f3cfd1aebc01234254ef0c37ad84v3.3.2-1

Signed-off-by: Anton Arapov <anton@redhat.com>

1 files changed, 209 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..d48ae396f41
--- /dev/null
+++ b/arch/powerpc/kvm/e500_emulate.c
@@ -0,0 +1,209 @@
+/*
+ * Copyright (C) 2008-2011 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;
+
+	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;
+	ulong spr_val = kvmppc_get_gpr(vcpu, rs);
+
+	switch (sprn) {
+	case SPRN_PID:
+		kvmppc_set_pid(vcpu, spr_val);
+		break;
+	case SPRN_PID1:
+		if (spr_val != 0)
+			return EMULATE_FAIL;
+		vcpu_e500->pid[1] = spr_val; break;
+	case SPRN_PID2:
+		if (spr_val != 0)
+			return EMULATE_FAIL;
+		vcpu_e500->pid[2] = spr_val; break;
+	case SPRN_MAS0:
+		vcpu_e500->mas0 = spr_val; break;
+	case SPRN_MAS1:
+		vcpu_e500->mas1 = spr_val; break;
+	case SPRN_MAS2:
+		vcpu_e500->mas2 = spr_val; break;
+	case SPRN_MAS3:
+		vcpu_e500->mas3 = spr_val; break;
+	case SPRN_MAS4:
+		vcpu_e500->mas4 = spr_val; break;
+	case SPRN_MAS6:
+		vcpu_e500->mas6 = spr_val; break;
+	case SPRN_MAS7:
+		vcpu_e500->mas7 = spr_val; break;
+	case SPRN_L1CSR0:
+		vcpu_e500->l1csr0 = spr_val;
+		vcpu_e500->l1csr0 &= ~(L1CSR0_DCFI | L1CSR0_CLFC);
+		break;
+	case SPRN_L1CSR1:
+		vcpu_e500->l1csr1 = spr_val; break;
+	case SPRN_HID0:
+		vcpu_e500->hid0 = spr_val; break;
+	case SPRN_HID1:
+		vcpu_e500->hid1 = spr_val; break;
+
+	case SPRN_MMUCSR0:
+		emulated = kvmppc_e500_emul_mt_mmucsr0(vcpu_e500,
+				spr_val);
+		break;
+
+	/* extra exceptions */
+	case SPRN_IVOR32:
+		vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_UNAVAIL] = spr_val;
+		break;
+	case SPRN_IVOR33:
+		vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_FP_DATA] = spr_val;
+		break;
+	case SPRN_IVOR34:
+		vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_FP_ROUND] = spr_val;
+		break;
+	case SPRN_IVOR35:
+		vcpu->arch.ivor[BOOKE_IRQPRIO_PERFORMANCE_MONITOR] = spr_val;
+		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:
+		kvmppc_set_gpr(vcpu, rt, vcpu_e500->pid[0]); break;
+	case SPRN_PID1:
+		kvmppc_set_gpr(vcpu, rt, vcpu_e500->pid[1]); break;
+	case SPRN_PID2:
+		kvmppc_set_gpr(vcpu, rt, vcpu_e500->pid[2]); break;
+	case SPRN_MAS0:
+		kvmppc_set_gpr(vcpu, rt, vcpu_e500->mas0); break;
+	case SPRN_MAS1:
+		kvmppc_set_gpr(vcpu, rt, vcpu_e500->mas1); break;
+	case SPRN_MAS2:
+		kvmppc_set_gpr(vcpu, rt, vcpu_e500->mas2); break;
+	case SPRN_MAS3:
+		kvmppc_set_gpr(vcpu, rt, vcpu_e500->mas3); break;
+	case SPRN_MAS4:
+		kvmppc_set_gpr(vcpu, rt, vcpu_e500->mas4); break;
+	case SPRN_MAS6:
+		kvmppc_set_gpr(vcpu, rt, vcpu_e500->mas6); break;
+	case SPRN_MAS7:
+		kvmppc_set_gpr(vcpu, rt, vcpu_e500->mas7); break;
+
+	case SPRN_TLB0CFG:
+		kvmppc_set_gpr(vcpu, rt, vcpu_e500->tlb0cfg); break;
+	case SPRN_TLB1CFG:
+		kvmppc_set_gpr(vcpu, rt, vcpu_e500->tlb1cfg); break;
+	case SPRN_L1CSR0:
+		kvmppc_set_gpr(vcpu, rt, vcpu_e500->l1csr0); break;
+	case SPRN_L1CSR1:
+		kvmppc_set_gpr(vcpu, rt, vcpu_e500->l1csr1); break;
+	case SPRN_HID0:
+		kvmppc_set_gpr(vcpu, rt, vcpu_e500->hid0); break;
+	case SPRN_HID1:
+		kvmppc_set_gpr(vcpu, rt, vcpu_e500->hid1); break;
+	case SPRN_SVR:
+		kvmppc_set_gpr(vcpu, rt, vcpu_e500->svr); break;
+
+	case SPRN_MMUCSR0:
+		kvmppc_set_gpr(vcpu, rt, 0); break;
+
+	case SPRN_MMUCFG:
+		kvmppc_set_gpr(vcpu, rt, mfspr(SPRN_MMUCFG)); break;
+
+	/* extra exceptions */
+	case SPRN_IVOR32:
+		kvmppc_set_gpr(vcpu, rt, vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_UNAVAIL]);
+		break;
+	case SPRN_IVOR33:
+		kvmppc_set_gpr(vcpu, rt, vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_FP_DATA]);
+		break;
+	case SPRN_IVOR34:
+		kvmppc_set_gpr(vcpu, rt, vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_FP_ROUND]);
+		break;
+	case SPRN_IVOR35:
+		kvmppc_set_gpr(vcpu, rt, vcpu->arch.ivor[BOOKE_IRQPRIO_PERFORMANCE_MONITOR]);
+		break;
+	default:
+		emulated = kvmppc_booke_emulate_mfspr(vcpu, sprn, rt);
+	}
+
+	return emulated;
+}
+