1/* 2 * This program is free software; you can redistribute it and/or modify 3 * it under the terms of the GNU General Public License, version 2, as 4 * published by the Free Software Foundation. 5 * 6 * This program is distributed in the hope that it will be useful, 7 * but WITHOUT ANY WARRANTY; without even the implied warranty of 8 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 9 * GNU General Public License for more details. 10 * 11 * You should have received a copy of the GNU General Public License 12 * along with this program; if not, write to the Free Software 13 * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. 14 * 15 * Copyright SUSE Linux Products GmbH 2009 16 * 17 * Authors: Alexander Graf <agraf@suse.de> 18 */ 19 20#ifndef __ASM_KVM_BOOK3S_H__ 21#define __ASM_KVM_BOOK3S_H__ 22 23#include <linux/types.h> 24#include <linux/kvm_host.h> 25#include <asm/kvm_book3s_asm.h> 26 27struct kvmppc_slb { 28 u64 esid; 29 u64 vsid; 30 u64 orige; 31 u64 origv; 32 bool valid : 1; 33 bool Ks : 1; 34 bool Kp : 1; 35 bool nx : 1; 36 bool large : 1; /* PTEs are 16MB */ 37 bool tb : 1; /* 1TB segment */ 38 bool class : 1; 39}; 40 41struct kvmppc_sr { 42 u32 raw; 43 u32 vsid; 44 bool Ks : 1; 45 bool Kp : 1; 46 bool nx : 1; 47 bool valid : 1; 48}; 49 50struct kvmppc_bat { 51 u64 raw; 52 u32 bepi; 53 u32 bepi_mask; 54 u32 brpn; 55 u8 wimg; 56 u8 pp; 57 bool vs : 1; 58 bool vp : 1; 59}; 60 61struct kvmppc_sid_map { 62 u64 guest_vsid; 63 u64 guest_esid; 64 u64 host_vsid; 65 bool valid : 1; 66}; 67 68#define SID_MAP_BITS 9 69#define SID_MAP_NUM (1 << SID_MAP_BITS) 70#define SID_MAP_MASK (SID_MAP_NUM - 1) 71 72struct kvmppc_vcpu_book3s { 73 struct kvm_vcpu vcpu; 74 struct kvmppc_book3s_shadow_vcpu *shadow_vcpu; 75 struct kvmppc_sid_map sid_map[SID_MAP_NUM]; 76 struct kvmppc_slb slb[64]; 77 struct { 78 u64 esid; 79 u64 vsid; 80 } slb_shadow[64]; 81 u8 slb_shadow_max; 82 struct kvmppc_sr sr[16]; 83 struct kvmppc_bat ibat[8]; 84 struct kvmppc_bat dbat[8]; 85 u64 hid[6]; 86 u64 gqr[8]; 87 int slb_nr; 88 u32 dsisr; 89 u64 sdr1; 90 u64 hior; 91 u64 msr_mask; 92 u64 vsid_first; 93 u64 vsid_next; 94 u64 vsid_max; 95 int context_id; 96 ulong prog_flags; /* flags to inject when giving a 700 trap */ 97}; 98 99#define CONTEXT_HOST 0 100#define CONTEXT_GUEST 1 101#define CONTEXT_GUEST_END 2 102 103#define VSID_REAL 0x1fffffffffc00000ULL 104#define VSID_BAT 0x1fffffffffb00000ULL 105#define VSID_REAL_DR 0x2000000000000000ULL 106#define VSID_REAL_IR 0x4000000000000000ULL 107#define VSID_PR 0x8000000000000000ULL 108 109extern void kvmppc_mmu_pte_flush(struct kvm_vcpu *vcpu, ulong ea, ulong ea_mask); 110extern void kvmppc_mmu_pte_vflush(struct kvm_vcpu *vcpu, u64 vp, u64 vp_mask); 111extern void kvmppc_mmu_pte_pflush(struct kvm_vcpu *vcpu, ulong pa_start, ulong pa_end); 112extern void kvmppc_set_msr(struct kvm_vcpu *vcpu, u64 new_msr); 113extern void kvmppc_mmu_book3s_64_init(struct kvm_vcpu *vcpu); 114extern void kvmppc_mmu_book3s_32_init(struct kvm_vcpu *vcpu); 115extern int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte); 116extern int kvmppc_mmu_map_segment(struct kvm_vcpu *vcpu, ulong eaddr); 117extern void kvmppc_mmu_flush_segments(struct kvm_vcpu *vcpu); 118 119extern void kvmppc_mmu_hpte_cache_map(struct kvm_vcpu *vcpu, struct hpte_cache *pte); 120extern struct hpte_cache *kvmppc_mmu_hpte_cache_next(struct kvm_vcpu *vcpu); 121extern void kvmppc_mmu_hpte_destroy(struct kvm_vcpu *vcpu); 122extern int kvmppc_mmu_hpte_init(struct kvm_vcpu *vcpu); 123extern void kvmppc_mmu_invalidate_pte(struct kvm_vcpu *vcpu, struct hpte_cache *pte); 124extern int kvmppc_mmu_hpte_sysinit(void); 125extern void kvmppc_mmu_hpte_sysexit(void); 126 127extern int kvmppc_ld(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr, bool data); 128extern int kvmppc_st(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr, bool data); 129extern void kvmppc_book3s_queue_irqprio(struct kvm_vcpu *vcpu, unsigned int vec); 130extern void kvmppc_set_bat(struct kvm_vcpu *vcpu, struct kvmppc_bat *bat, 131 bool upper, u32 val); 132extern void kvmppc_giveup_ext(struct kvm_vcpu *vcpu, ulong msr); 133extern int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu); 134 135extern u32 kvmppc_trampoline_lowmem; 136extern u32 kvmppc_trampoline_enter; 137extern void kvmppc_rmcall(ulong srr0, ulong srr1); 138extern void kvmppc_load_up_fpu(void); 139extern void kvmppc_load_up_altivec(void); 140extern void kvmppc_load_up_vsx(void); 141extern u32 kvmppc_alignment_dsisr(struct kvm_vcpu *vcpu, unsigned int inst); 142extern ulong kvmppc_alignment_dar(struct kvm_vcpu *vcpu, unsigned int inst); 143 144static inline struct kvmppc_vcpu_book3s *to_book3s(struct kvm_vcpu *vcpu) 145{ 146 return container_of(vcpu, struct kvmppc_vcpu_book3s, vcpu); 147} 148 149static inline ulong dsisr(void) 150{ 151 ulong r; 152 asm ( "mfdsisr %0 " : "=r" (r) ); 153 return r; 154} 155 156extern void kvm_return_point(void); 157static inline struct kvmppc_book3s_shadow_vcpu *to_svcpu(struct kvm_vcpu *vcpu); 158 159static inline void kvmppc_set_gpr(struct kvm_vcpu *vcpu, int num, ulong val) 160{ 161 if ( num < 14 ) { 162 to_svcpu(vcpu)->gpr[num] = val; 163 to_book3s(vcpu)->shadow_vcpu->gpr[num] = val; 164 } else 165 vcpu->arch.gpr[num] = val; 166} 167 168static inline ulong kvmppc_get_gpr(struct kvm_vcpu *vcpu, int num) 169{ 170 if ( num < 14 ) 171 return to_svcpu(vcpu)->gpr[num]; 172 else 173 return vcpu->arch.gpr[num]; 174} 175 176static inline void kvmppc_set_cr(struct kvm_vcpu *vcpu, u32 val) 177{ 178 to_svcpu(vcpu)->cr = val; 179 to_book3s(vcpu)->shadow_vcpu->cr = val; 180} 181 182static inline u32 kvmppc_get_cr(struct kvm_vcpu *vcpu) 183{ 184 return to_svcpu(vcpu)->cr; 185} 186 187static inline void kvmppc_set_xer(struct kvm_vcpu *vcpu, u32 val) 188{ 189 to_svcpu(vcpu)->xer = val; 190 to_book3s(vcpu)->shadow_vcpu->xer = val; 191} 192 193static inline u32 kvmppc_get_xer(struct kvm_vcpu *vcpu) 194{ 195 return to_svcpu(vcpu)->xer; 196} 197 198static inline void kvmppc_set_ctr(struct kvm_vcpu *vcpu, ulong val) 199{ 200 to_svcpu(vcpu)->ctr = val; 201} 202 203static inline ulong kvmppc_get_ctr(struct kvm_vcpu *vcpu) 204{ 205 return to_svcpu(vcpu)->ctr; 206} 207 208static inline void kvmppc_set_lr(struct kvm_vcpu *vcpu, ulong val) 209{ 210 to_svcpu(vcpu)->lr = val; 211} 212 213static inline ulong kvmppc_get_lr(struct kvm_vcpu *vcpu) 214{ 215 return to_svcpu(vcpu)->lr; 216} 217 218static inline void kvmppc_set_pc(struct kvm_vcpu *vcpu, ulong val) 219{ 220 to_svcpu(vcpu)->pc = val; 221} 222 223static inline ulong kvmppc_get_pc(struct kvm_vcpu *vcpu) 224{ 225 return to_svcpu(vcpu)->pc; 226} 227 228static inline u32 kvmppc_get_last_inst(struct kvm_vcpu *vcpu) 229{ 230 ulong pc = kvmppc_get_pc(vcpu); 231 struct kvmppc_book3s_shadow_vcpu *svcpu = to_svcpu(vcpu); 232 233 /* Load the instruction manually if it failed to do so in the 234 * exit path */ 235 if (svcpu->last_inst == KVM_INST_FETCH_FAILED) 236 kvmppc_ld(vcpu, &pc, sizeof(u32), &svcpu->last_inst, false); 237 238 return svcpu->last_inst; 239} 240 241static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu) 242{ 243 return to_svcpu(vcpu)->fault_dar; 244} 245 246/* Magic register values loaded into r3 and r4 before the 'sc' assembly 247 * instruction for the OSI hypercalls */ 248#define OSI_SC_MAGIC_R3 0x113724FA 249#define OSI_SC_MAGIC_R4 0x77810F9B 250 251#define INS_DCBZ 0x7c0007ec 252 253/* Also add subarch specific defines */ 254 255#ifdef CONFIG_PPC_BOOK3S_32 256#include <asm/kvm_book3s_32.h> 257#else 258#include <asm/kvm_book3s_64.h> 259#endif 260 261#endif /* __ASM_KVM_BOOK3S_H__ */ 262