2 * Copyright (C) 2008-2011 Freescale Semiconductor, Inc. All rights reserved.
4 * Author: Yu Liu, <yu.liu@freescale.com>
7 * This file is derived from arch/powerpc/kvm/44x_emulate.c,
8 * by Hollis Blanchard <hollisb@us.ibm.com>.
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.
15 #include <asm/kvm_ppc.h>
16 #include <asm/disassemble.h>
17 #include <asm/dbell.h>
22 #define XOP_MSGSND 206
23 #define XOP_MSGCLR 238
24 #define XOP_TLBIVAX 786
29 #define XOP_EHPRIV 270
31 #ifdef CONFIG_KVM_E500MC
32 static int dbell2prio(ulong param)
34 int msg = param & PPC_DBELL_TYPE_MASK;
38 case PPC_DBELL_TYPE(PPC_DBELL):
39 prio = BOOKE_IRQPRIO_DBELL;
41 case PPC_DBELL_TYPE(PPC_DBELL_CRIT):
42 prio = BOOKE_IRQPRIO_DBELL_CRIT;
51 static int kvmppc_e500_emul_msgclr(struct kvm_vcpu *vcpu, int rb)
53 ulong param = vcpu->arch.gpr[rb];
54 int prio = dbell2prio(param);
59 clear_bit(prio, &vcpu->arch.pending_exceptions);
63 static int kvmppc_e500_emul_msgsnd(struct kvm_vcpu *vcpu, int rb)
65 ulong param = vcpu->arch.gpr[rb];
66 int prio = dbell2prio(rb);
67 int pir = param & PPC_DBELL_PIR_MASK;
69 struct kvm_vcpu *cvcpu;
74 kvm_for_each_vcpu(i, cvcpu, vcpu->kvm) {
75 int cpir = cvcpu->arch.shared->pir;
76 if ((param & PPC_DBELL_MSG_BRDCAST) || (cpir == pir)) {
77 set_bit(prio, &cvcpu->arch.pending_exceptions);
86 static int kvmppc_e500_emul_ehpriv(struct kvm_run *run, struct kvm_vcpu *vcpu,
87 unsigned int inst, int *advance)
89 int emulated = EMULATE_DONE;
91 switch (get_oc(inst)) {
93 run->exit_reason = KVM_EXIT_DEBUG;
94 run->debug.arch.address = vcpu->arch.pc;
95 run->debug.arch.status = 0;
96 kvmppc_account_exit(vcpu, DEBUG_EXITS);
97 emulated = EMULATE_EXIT_USER;
101 emulated = EMULATE_FAIL;
106 int kvmppc_core_emulate_op_e500(struct kvm_run *run, struct kvm_vcpu *vcpu,
107 unsigned int inst, int *advance)
109 int emulated = EMULATE_DONE;
110 int ra = get_ra(inst);
111 int rb = get_rb(inst);
112 int rt = get_rt(inst);
115 switch (get_op(inst)) {
117 switch (get_xop(inst)) {
119 #ifdef CONFIG_KVM_E500MC
121 emulated = kvmppc_e500_emul_msgsnd(vcpu, rb);
125 emulated = kvmppc_e500_emul_msgclr(vcpu, rb);
130 emulated = kvmppc_e500_emul_tlbre(vcpu);
134 emulated = kvmppc_e500_emul_tlbwe(vcpu);
138 ea = kvmppc_get_ea_indexed(vcpu, ra, rb);
139 emulated = kvmppc_e500_emul_tlbsx(vcpu, ea);
144 ea = kvmppc_get_ea_indexed(vcpu, ra, rb);
145 emulated = kvmppc_e500_emul_tlbilx(vcpu, type, ea);
150 ea = kvmppc_get_ea_indexed(vcpu, ra, rb);
151 emulated = kvmppc_e500_emul_tlbivax(vcpu, ea);
155 emulated = kvmppc_e500_emul_ehpriv(run, vcpu, inst,
160 emulated = EMULATE_FAIL;
166 emulated = EMULATE_FAIL;
169 if (emulated == EMULATE_FAIL)
170 emulated = kvmppc_booke_emulate_op(run, vcpu, inst, advance);
175 int kvmppc_core_emulate_mtspr_e500(struct kvm_vcpu *vcpu, int sprn, ulong spr_val)
177 struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
178 int emulated = EMULATE_DONE;
181 #ifndef CONFIG_KVM_BOOKE_HV
183 kvmppc_set_pid(vcpu, spr_val);
188 vcpu_e500->pid[1] = spr_val;
193 vcpu_e500->pid[2] = spr_val;
196 vcpu->arch.shared->mas0 = spr_val;
199 vcpu->arch.shared->mas1 = spr_val;
202 vcpu->arch.shared->mas2 = spr_val;
205 vcpu->arch.shared->mas7_3 &= ~(u64)0xffffffff;
206 vcpu->arch.shared->mas7_3 |= spr_val;
209 vcpu->arch.shared->mas4 = spr_val;
212 vcpu->arch.shared->mas6 = spr_val;
215 vcpu->arch.shared->mas7_3 &= (u64)0xffffffff;
216 vcpu->arch.shared->mas7_3 |= (u64)spr_val << 32;
220 vcpu_e500->l1csr0 = spr_val;
221 vcpu_e500->l1csr0 &= ~(L1CSR0_DCFI | L1CSR0_CLFC);
224 vcpu_e500->l1csr1 = spr_val;
227 vcpu_e500->hid0 = spr_val;
230 vcpu_e500->hid1 = spr_val;
234 emulated = kvmppc_e500_emul_mt_mmucsr0(vcpu_e500,
238 /* extra exceptions */
240 vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_UNAVAIL] = spr_val;
243 vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_FP_DATA] = spr_val;
246 vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_FP_ROUND] = spr_val;
249 vcpu->arch.ivor[BOOKE_IRQPRIO_PERFORMANCE_MONITOR] = spr_val;
251 #ifdef CONFIG_KVM_BOOKE_HV
253 vcpu->arch.ivor[BOOKE_IRQPRIO_DBELL] = spr_val;
256 vcpu->arch.ivor[BOOKE_IRQPRIO_DBELL_CRIT] = spr_val;
260 emulated = kvmppc_booke_emulate_mtspr(vcpu, sprn, spr_val);
266 int kvmppc_core_emulate_mfspr_e500(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val)
268 struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
269 int emulated = EMULATE_DONE;
272 #ifndef CONFIG_KVM_BOOKE_HV
274 *spr_val = vcpu_e500->pid[0];
277 *spr_val = vcpu_e500->pid[1];
280 *spr_val = vcpu_e500->pid[2];
283 *spr_val = vcpu->arch.shared->mas0;
286 *spr_val = vcpu->arch.shared->mas1;
289 *spr_val = vcpu->arch.shared->mas2;
292 *spr_val = (u32)vcpu->arch.shared->mas7_3;
295 *spr_val = vcpu->arch.shared->mas4;
298 *spr_val = vcpu->arch.shared->mas6;
301 *spr_val = vcpu->arch.shared->mas7_3 >> 32;
305 *spr_val = vcpu->arch.decar;
308 *spr_val = vcpu->arch.tlbcfg[0];
311 *spr_val = vcpu->arch.tlbcfg[1];
314 if (!has_feature(vcpu, VCPU_FTR_MMU_V2))
316 *spr_val = vcpu->arch.tlbps[0];
319 if (!has_feature(vcpu, VCPU_FTR_MMU_V2))
321 *spr_val = vcpu->arch.tlbps[1];
324 *spr_val = vcpu_e500->l1csr0;
327 *spr_val = vcpu_e500->l1csr1;
330 *spr_val = vcpu_e500->hid0;
333 *spr_val = vcpu_e500->hid1;
336 *spr_val = vcpu_e500->svr;
344 *spr_val = vcpu->arch.mmucfg;
347 if (!has_feature(vcpu, VCPU_FTR_MMU_V2))
350 * Legacy Linux guests access EPTCFG register even if the E.PT
351 * category is disabled in the VM. Give them a chance to live.
353 *spr_val = vcpu->arch.eptcfg;
356 /* extra exceptions */
358 *spr_val = vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_UNAVAIL];
361 *spr_val = vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_FP_DATA];
364 *spr_val = vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_FP_ROUND];
367 *spr_val = vcpu->arch.ivor[BOOKE_IRQPRIO_PERFORMANCE_MONITOR];
369 #ifdef CONFIG_KVM_BOOKE_HV
371 *spr_val = vcpu->arch.ivor[BOOKE_IRQPRIO_DBELL];
374 *spr_val = vcpu->arch.ivor[BOOKE_IRQPRIO_DBELL_CRIT];
378 emulated = kvmppc_booke_emulate_mfspr(vcpu, sprn, spr_val);