[linux-2.6-block.git] / arch / powerpc / kvm / e500_emulate.c

/*
 * 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;
}
Commit	Line	Data
bc8080cb HB	1	/*
	2	* Copyright (C) 2008 Freescale Semiconductor, Inc. All rights reserved.
	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;
	33	int rs;
	34	int rt;
	35
	36	switch (get_op(inst)) {
	37	case 31:
	38	switch (get_xop(inst)) {
	39
	40	case XOP_TLBRE:
	41	emulated = kvmppc_e500_emul_tlbre(vcpu);
	42	break;
	43
	44	case XOP_TLBWE:
	45	emulated = kvmppc_e500_emul_tlbwe(vcpu);
	46	break;
	47
	48	case XOP_TLBSX:
	49	rb = get_rb(inst);
	50	emulated = kvmppc_e500_emul_tlbsx(vcpu,rb);
	51	break;
	52
	53	case XOP_TLBIVAX:
	54	ra = get_ra(inst);
	55	rb = get_rb(inst);
	56	emulated = kvmppc_e500_emul_tlbivax(vcpu, ra, rb);
	57	break;
	58
	59	default:
	60	emulated = EMULATE_FAIL;
	61	}
	62
	63	break;
	64
65	default:
66	emulated = EMULATE_FAIL;
67	}
68
69	if (emulated == EMULATE_FAIL)
70	emulated = kvmppc_booke_emulate_op(run, vcpu, inst, advance);
71
72	return emulated;
73	}
74
75	int kvmppc_core_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, int rs)
76	{
77	struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
78	int emulated = EMULATE_DONE;
79
80	switch (sprn) {
81	case SPRN_PID:
82	vcpu_e500->pid[0] = vcpu->arch.shadow_pid =
83	vcpu->arch.pid = vcpu->arch.gpr[rs];
84	break;
85	case SPRN_PID1:
86	vcpu_e500->pid[1] = vcpu->arch.gpr[rs]; break;
87	case SPRN_PID2:
88	vcpu_e500->pid[2] = vcpu->arch.gpr[rs]; break;
89	case SPRN_MAS0:
90	vcpu_e500->mas0 = vcpu->arch.gpr[rs]; break;
91	case SPRN_MAS1:
92	vcpu_e500->mas1 = vcpu->arch.gpr[rs]; break;
93	case SPRN_MAS2:
94	vcpu_e500->mas2 = vcpu->arch.gpr[rs]; break;
95	case SPRN_MAS3:
96	vcpu_e500->mas3 = vcpu->arch.gpr[rs]; break;
97	case SPRN_MAS4:
98	vcpu_e500->mas4 = vcpu->arch.gpr[rs]; break;
99	case SPRN_MAS6:
100	vcpu_e500->mas6 = vcpu->arch.gpr[rs]; break;
101	case SPRN_MAS7:
102	vcpu_e500->mas7 = vcpu->arch.gpr[rs]; break;
103	case SPRN_L1CSR1:
104	vcpu_e500->l1csr1 = vcpu->arch.gpr[rs]; break;
105	case SPRN_HID0:
106	vcpu_e500->hid0 = vcpu->arch.gpr[rs]; break;
107	case SPRN_HID1:
108	vcpu_e500->hid1 = vcpu->arch.gpr[rs]; break;
109
110	default:
111	emulated = kvmppc_booke_emulate_mtspr(vcpu, sprn, rs);
112	}
113
114	return emulated;
115	}
116
117	int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt)
118	{
119	struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
120	int emulated = EMULATE_DONE;
121
122	switch (sprn) {
123	case SPRN_PID:
124	vcpu->arch.gpr[rt] = vcpu_e500->pid[0]; break;
125	case SPRN_PID1:
126	vcpu->arch.gpr[rt] = vcpu_e500->pid[1]; break;
127	case SPRN_PID2:
128	vcpu->arch.gpr[rt] = vcpu_e500->pid[2]; break;
129	case SPRN_MAS0:
130	vcpu->arch.gpr[rt] = vcpu_e500->mas0; break;
131	case SPRN_MAS1:
132	vcpu->arch.gpr[rt] = vcpu_e500->mas1; break;
133	case SPRN_MAS2:
134	vcpu->arch.gpr[rt] = vcpu_e500->mas2; break;
135	case SPRN_MAS3:
136	vcpu->arch.gpr[rt] = vcpu_e500->mas3; break;
137	case SPRN_MAS4:
138	vcpu->arch.gpr[rt] = vcpu_e500->mas4; break;
139	case SPRN_MAS6:
140	vcpu->arch.gpr[rt] = vcpu_e500->mas6; break;
141	case SPRN_MAS7:
142	vcpu->arch.gpr[rt] = vcpu_e500->mas7; break;
143
144	case SPRN_TLB0CFG:
145	vcpu->arch.gpr[rt] = mfspr(SPRN_TLB0CFG);
146	vcpu->arch.gpr[rt] &= ~0xfffUL;
147	vcpu->arch.gpr[rt] \|= vcpu_e500->guest_tlb_size[0];
148	break;
149
150	case SPRN_TLB1CFG:
151	vcpu->arch.gpr[rt] = mfspr(SPRN_TLB1CFG);
152	vcpu->arch.gpr[rt] &= ~0xfffUL;
153	vcpu->arch.gpr[rt] \|= vcpu_e500->guest_tlb_size[1];
154	break;
155
156	case SPRN_L1CSR1:
157	vcpu->arch.gpr[rt] = vcpu_e500->l1csr1; break;
158	case SPRN_HID0:
159	vcpu->arch.gpr[rt] = vcpu_e500->hid0; break;
160	case SPRN_HID1:
161	vcpu->arch.gpr[rt] = vcpu_e500->hid1; break;
162
163	default:
164	emulated = kvmppc_booke_emulate_mfspr(vcpu, sprn, rt);
165	}
166
167	return emulated;
168	}
169