diff options
Diffstat (limited to 'arch/powerpc/kvm/e500_emulate.c')
| -rw-r--r-- | arch/powerpc/kvm/e500_emulate.c | 202 |
1 files changed, 202 insertions, 0 deletions
diff --git a/arch/powerpc/kvm/e500_emulate.c b/arch/powerpc/kvm/e500_emulate.c new file mode 100644 index 000000000000..3f760414b9f8 --- /dev/null +++ b/arch/powerpc/kvm/e500_emulate.c @@ -0,0 +1,202 @@ +/* + * 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; + + 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; + + case SPRN_MMUCSR0: + emulated = kvmppc_e500_emul_mt_mmucsr0(vcpu_e500, + vcpu->arch.gpr[rs]); + break; + + /* extra exceptions */ + case SPRN_IVOR32: + vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_UNAVAIL] = vcpu->arch.gpr[rs]; + break; + case SPRN_IVOR33: + vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_FP_DATA] = vcpu->arch.gpr[rs]; + break; + case SPRN_IVOR34: + vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_FP_ROUND] = vcpu->arch.gpr[rs]; + break; + case SPRN_IVOR35: + vcpu->arch.ivor[BOOKE_IRQPRIO_PERFORMANCE_MONITOR] = 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; + + case SPRN_MMUCSR0: + vcpu->arch.gpr[rt] = 0; break; + + /* extra exceptions */ + case SPRN_IVOR32: + vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_UNAVAIL]; + break; + case SPRN_IVOR33: + vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_FP_DATA]; + break; + case SPRN_IVOR34: + vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_FP_ROUND]; + break; + case SPRN_IVOR35: + vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_PERFORMANCE_MONITOR]; + break; + default: + emulated = kvmppc_booke_emulate_mfspr(vcpu, sprn, rt); + } + + return emulated; +} + |