[mirror_ubuntu-zesty-kernel.git] / arch / powerpc / kvm / e500_emulate.c

/*
 * 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->mas7_3 &= ~(u64)0xffffffff;
		vcpu_e500->mas7_3 |= 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_3 &= (u64)0xffffffff;
		vcpu_e500->mas7_3 |= (u64)spr_val << 32;
		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, (u32)vcpu_e500->mas7_3); 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_3 >> 32); 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;
}
Commit	Line	Data
bc8080cb	1	/*
5ce941ee	2	* Copyright (C) 2008-2011 Freescale Semiconductor, Inc. All rights reserved.
bc8080cb HB	3	*
	4	* Author: Yu Liu, <yu.liu@freescale.com>
	5	*
	6	* Description:
	7	* This file is derived from arch/powerpc/kvm/44x_emulate.c,
	8	* by Hollis Blanchard <hollisb@us.ibm.com>.
	9	*
	10	* This program is free software; you can redistribute it and/or modify
	11	* it under the terms of the GNU General Public License, version 2, as
	12	* published by the Free Software Foundation.
	13	*/
	14
	15	#include <asm/kvm_ppc.h>
	16	#include <asm/disassemble.h>
	17	#include <asm/kvm_e500.h>
	18
	19	#include "booke.h"
	20	#include "e500_tlb.h"
	21
	22	#define XOP_TLBIVAX 786
	23	#define XOP_TLBSX 914
	24	#define XOP_TLBRE 946
	25	#define XOP_TLBWE 978
	26
	27	int kvmppc_core_emulate_op(struct kvm_run run, struct kvm_vcpu vcpu,
	28	unsigned int inst, int *advance)
	29	{
	30	int emulated = EMULATE_DONE;
	31	int ra;
	32	int rb;
bc8080cb HB	33
	34	switch (get_op(inst)) {
	35	case 31:
	36	switch (get_xop(inst)) {
	37
	38	case XOP_TLBRE:
	39	emulated = kvmppc_e500_emul_tlbre(vcpu);
	40	break;
	41
	42	case XOP_TLBWE:
	43	emulated = kvmppc_e500_emul_tlbwe(vcpu);
	44	break;
	45
	46	case XOP_TLBSX:
	47	rb = get_rb(inst);
	48	emulated = kvmppc_e500_emul_tlbsx(vcpu,rb);
	49	break;
	50
	51	case XOP_TLBIVAX:
	52	ra = get_ra(inst);
	53	rb = get_rb(inst);
	54	emulated = kvmppc_e500_emul_tlbivax(vcpu, ra, rb);
	55	break;
	56
	57	default:
	58	emulated = EMULATE_FAIL;
	59	}
	60
	61	break;
	62
	63	default:
	64	emulated = EMULATE_FAIL;
	65	}
	66
	67	if (emulated == EMULATE_FAIL)
	68	emulated = kvmppc_booke_emulate_op(run, vcpu, inst, advance);
	69
	70	return emulated;
	71	}
	72
	73	int kvmppc_core_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, int rs)
	74	{
	75	struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
	76	int emulated = EMULATE_DONE;
8e5b26b5	77	ulong spr_val = kvmppc_get_gpr(vcpu, rs);
bc8080cb HB	78
	79	switch (sprn) {
	80	case SPRN_PID:
5ce941ee	81	kvmppc_set_pid(vcpu, spr_val);
bc8080cb HB	82	break;
bc8080cb HB	83	case SPRN_PID1:
dd9ebf1f LY	84	if (spr_val != 0)
dd9ebf1f LY	85	return EMULATE_FAIL;
8e5b26b5	86	vcpu_e500->pid[1] = spr_val; break;
bc8080cb	87	case SPRN_PID2:
dd9ebf1f LY	88	if (spr_val != 0)
dd9ebf1f LY	89	return EMULATE_FAIL;
8e5b26b5	90	vcpu_e500->pid[2] = spr_val; break;
bc8080cb	91	case SPRN_MAS0:
8e5b26b5	92	vcpu_e500->mas0 = spr_val; break;
bc8080cb	93	case SPRN_MAS1:
8e5b26b5	94	vcpu_e500->mas1 = spr_val; break;
bc8080cb	95	case SPRN_MAS2:
8e5b26b5	96	vcpu_e500->mas2 = spr_val; break;
bc8080cb	97	case SPRN_MAS3:
dc83b8bc SW	98	vcpu_e500->mas7_3 &= ~(u64)0xffffffff;
	99	vcpu_e500->mas7_3 \|= spr_val;
	100	break;
bc8080cb	101	case SPRN_MAS4:
8e5b26b5	102	vcpu_e500->mas4 = spr_val; break;
bc8080cb	103	case SPRN_MAS6:
8e5b26b5	104	vcpu_e500->mas6 = spr_val; break;
bc8080cb	105	case SPRN_MAS7:
dc83b8bc SW	106	vcpu_e500->mas7_3 &= (u64)0xffffffff;
	107	vcpu_e500->mas7_3 \|= (u64)spr_val << 32;
	108	break;
d86be077 LY	109	case SPRN_L1CSR0:
	110	vcpu_e500->l1csr0 = spr_val;
	111	vcpu_e500->l1csr0 &= ~(L1CSR0_DCFI \| L1CSR0_CLFC);
	112	break;
bc8080cb	113	case SPRN_L1CSR1:
8e5b26b5	114	vcpu_e500->l1csr1 = spr_val; break;
bc8080cb	115	case SPRN_HID0:
8e5b26b5	116	vcpu_e500->hid0 = spr_val; break;
bc8080cb	117	case SPRN_HID1:
8e5b26b5	118	vcpu_e500->hid1 = spr_val; break;
bc8080cb	119
b0a1835d LY	120	case SPRN_MMUCSR0:
b0a1835d LY	121	emulated = kvmppc_e500_emul_mt_mmucsr0(vcpu_e500,
8e5b26b5	122	spr_val);
b0a1835d LY	123	break;
b0a1835d LY	124
bb3a8a17 HB	125	/* extra exceptions */
bb3a8a17 HB	126	case SPRN_IVOR32:
8e5b26b5	127	vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_UNAVAIL] = spr_val;
bb3a8a17 HB	128	break;
bb3a8a17 HB	129	case SPRN_IVOR33:
8e5b26b5	130	vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_FP_DATA] = spr_val;
bb3a8a17 HB	131	break;
bb3a8a17 HB	132	case SPRN_IVOR34:
8e5b26b5	133	vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_FP_ROUND] = spr_val;
bb3a8a17 HB	134	break;
bb3a8a17 HB	135	case SPRN_IVOR35:
8e5b26b5	136	vcpu->arch.ivor[BOOKE_IRQPRIO_PERFORMANCE_MONITOR] = spr_val;
bb3a8a17 HB	137	break;
bb3a8a17 HB	138
bc8080cb HB	139	default:
	140	emulated = kvmppc_booke_emulate_mtspr(vcpu, sprn, rs);
	141	}
	142
	143	return emulated;
	144	}
	145
	146	int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt)
	147	{
	148	struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
	149	int emulated = EMULATE_DONE;
	150
	151	switch (sprn) {
	152	case SPRN_PID:
8e5b26b5	153	kvmppc_set_gpr(vcpu, rt, vcpu_e500->pid[0]); break;
bc8080cb	154	case SPRN_PID1:
8e5b26b5	155	kvmppc_set_gpr(vcpu, rt, vcpu_e500->pid[1]); break;
bc8080cb	156	case SPRN_PID2:
8e5b26b5	157	kvmppc_set_gpr(vcpu, rt, vcpu_e500->pid[2]); break;
bc8080cb	158	case SPRN_MAS0:
8e5b26b5	159	kvmppc_set_gpr(vcpu, rt, vcpu_e500->mas0); break;
bc8080cb	160	case SPRN_MAS1:
8e5b26b5	161	kvmppc_set_gpr(vcpu, rt, vcpu_e500->mas1); break;
bc8080cb	162	case SPRN_MAS2:
8e5b26b5	163	kvmppc_set_gpr(vcpu, rt, vcpu_e500->mas2); break;
bc8080cb	164	case SPRN_MAS3:
dc83b8bc	165	kvmppc_set_gpr(vcpu, rt, (u32)vcpu_e500->mas7_3); break;
bc8080cb	166	case SPRN_MAS4:
8e5b26b5	167	kvmppc_set_gpr(vcpu, rt, vcpu_e500->mas4); break;
bc8080cb	168	case SPRN_MAS6:
8e5b26b5	169	kvmppc_set_gpr(vcpu, rt, vcpu_e500->mas6); break;
bc8080cb	170	case SPRN_MAS7:
dc83b8bc	171	kvmppc_set_gpr(vcpu, rt, vcpu_e500->mas7_3 >> 32); break;
bc8080cb HB	172
bc8080cb HB	173	case SPRN_TLB0CFG:
da15bf43	174	kvmppc_set_gpr(vcpu, rt, vcpu_e500->tlb0cfg); break;
bc8080cb	175	case SPRN_TLB1CFG:
da15bf43	176	kvmppc_set_gpr(vcpu, rt, vcpu_e500->tlb1cfg); break;
d86be077 LY	177	case SPRN_L1CSR0:
d86be077 LY	178	kvmppc_set_gpr(vcpu, rt, vcpu_e500->l1csr0); break;
bc8080cb	179	case SPRN_L1CSR1:
8e5b26b5	180	kvmppc_set_gpr(vcpu, rt, vcpu_e500->l1csr1); break;
bc8080cb	181	case SPRN_HID0:
8e5b26b5	182	kvmppc_set_gpr(vcpu, rt, vcpu_e500->hid0); break;
bc8080cb	183	case SPRN_HID1:
8e5b26b5	184	kvmppc_set_gpr(vcpu, rt, vcpu_e500->hid1); break;
90d34b0e SW	185	case SPRN_SVR:
90d34b0e SW	186	kvmppc_set_gpr(vcpu, rt, vcpu_e500->svr); break;
bc8080cb	187
b0a1835d	188	case SPRN_MMUCSR0:
8e5b26b5	189	kvmppc_set_gpr(vcpu, rt, 0); break;
b0a1835d	190
06579dd9	191	case SPRN_MMUCFG:
8e5b26b5	192	kvmppc_set_gpr(vcpu, rt, mfspr(SPRN_MMUCFG)); break;
06579dd9	193
bb3a8a17 HB	194	/* extra exceptions */
bb3a8a17 HB	195	case SPRN_IVOR32:
8e5b26b5	196	kvmppc_set_gpr(vcpu, rt, vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_UNAVAIL]);
bb3a8a17 HB	197	break;
bb3a8a17 HB	198	case SPRN_IVOR33:
8e5b26b5	199	kvmppc_set_gpr(vcpu, rt, vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_FP_DATA]);
bb3a8a17 HB	200	break;
bb3a8a17 HB	201	case SPRN_IVOR34:
8e5b26b5	202	kvmppc_set_gpr(vcpu, rt, vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_FP_ROUND]);
bb3a8a17 HB	203	break;
bb3a8a17 HB	204	case SPRN_IVOR35:
8e5b26b5	205	kvmppc_set_gpr(vcpu, rt, vcpu->arch.ivor[BOOKE_IRQPRIO_PERFORMANCE_MONITOR]);
bb3a8a17	206	break;
bc8080cb HB	207	default:
	208	emulated = kvmppc_booke_emulate_mfspr(vcpu, sprn, rt);
	209	}
	210
	211	return emulated;
	212	}
	213