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 IBM Corp. 2008 16 * 17 * Authors: Hollis Blanchard <hollisb@us.ibm.com> 18 */ 19 20 #ifndef __POWERPC_KVM_PPC_H__ 21 #define __POWERPC_KVM_PPC_H__ 22 23 /* This file exists just so we can dereference kvm_vcpu, avoiding nested header 24 * dependencies. */ 25 26 #include <linux/mutex.h> 27 #include <linux/timer.h> 28 #include <linux/types.h> 29 #include <linux/kvm_types.h> 30 #include <linux/kvm_host.h> 31 #ifdef CONFIG_PPC_BOOK3S 32 #include <asm/kvm_book3s.h> 33 #else 34 #include <asm/kvm_booke.h> 35 #endif 36 #ifdef CONFIG_KVM_BOOK3S_64_HANDLER 37 #include <asm/paca.h> 38 #endif 39 40 enum emulation_result { 41 EMULATE_DONE, /* no further processing */ 42 EMULATE_DO_MMIO, /* kvm_run filled with MMIO request */ 43 EMULATE_DO_DCR, /* kvm_run filled with DCR request */ 44 EMULATE_FAIL, /* can't emulate this instruction */ 45 EMULATE_AGAIN, /* something went wrong. go again */ 46 }; 47 48 extern int kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu); 49 extern int __kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu); 50 extern char kvmppc_handlers_start[]; 51 extern unsigned long kvmppc_handler_len; 52 extern void kvmppc_handler_highmem(void); 53 54 extern void kvmppc_dump_vcpu(struct kvm_vcpu *vcpu); 55 extern int kvmppc_handle_load(struct kvm_run *run, struct kvm_vcpu *vcpu, 56 unsigned int rt, unsigned int bytes, 57 int is_bigendian); 58 extern int kvmppc_handle_loads(struct kvm_run *run, struct kvm_vcpu *vcpu, 59 unsigned int rt, unsigned int bytes, 60 int is_bigendian); 61 extern int kvmppc_handle_store(struct kvm_run *run, struct kvm_vcpu *vcpu, 62 u64 val, unsigned int bytes, int is_bigendian); 63 64 extern int kvmppc_emulate_instruction(struct kvm_run *run, 65 struct kvm_vcpu *vcpu); 66 extern int kvmppc_emulate_mmio(struct kvm_run *run, struct kvm_vcpu *vcpu); 67 extern void kvmppc_emulate_dec(struct kvm_vcpu *vcpu); 68 extern u32 kvmppc_get_dec(struct kvm_vcpu *vcpu, u64 tb); 69 extern void kvmppc_decrementer_func(unsigned long data); 70 extern int kvmppc_sanity_check(struct kvm_vcpu *vcpu); 71 72 /* Core-specific hooks */ 73 74 extern void kvmppc_mmu_map(struct kvm_vcpu *vcpu, u64 gvaddr, gpa_t gpaddr, 75 unsigned int gtlb_idx); 76 extern void kvmppc_mmu_priv_switch(struct kvm_vcpu *vcpu, int usermode); 77 extern void kvmppc_mmu_switch_pid(struct kvm_vcpu *vcpu, u32 pid); 78 extern void kvmppc_mmu_destroy(struct kvm_vcpu *vcpu); 79 extern int kvmppc_mmu_init(struct kvm_vcpu *vcpu); 80 extern int kvmppc_mmu_dtlb_index(struct kvm_vcpu *vcpu, gva_t eaddr); 81 extern int kvmppc_mmu_itlb_index(struct kvm_vcpu *vcpu, gva_t eaddr); 82 extern gpa_t kvmppc_mmu_xlate(struct kvm_vcpu *vcpu, unsigned int gtlb_index, 83 gva_t eaddr); 84 extern void kvmppc_mmu_dtlb_miss(struct kvm_vcpu *vcpu); 85 extern void kvmppc_mmu_itlb_miss(struct kvm_vcpu *vcpu); 86 87 extern struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm, 88 unsigned int id); 89 extern void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu); 90 extern int kvmppc_core_vcpu_setup(struct kvm_vcpu *vcpu); 91 extern int kvmppc_core_check_processor_compat(void); 92 extern int kvmppc_core_vcpu_translate(struct kvm_vcpu *vcpu, 93 struct kvm_translation *tr); 94 95 extern void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu); 96 extern void kvmppc_core_vcpu_put(struct kvm_vcpu *vcpu); 97 98 extern int kvmppc_core_prepare_to_enter(struct kvm_vcpu *vcpu); 99 extern int kvmppc_core_pending_dec(struct kvm_vcpu *vcpu); 100 extern void kvmppc_core_queue_program(struct kvm_vcpu *vcpu, ulong flags); 101 extern void kvmppc_core_queue_dec(struct kvm_vcpu *vcpu); 102 extern void kvmppc_core_dequeue_dec(struct kvm_vcpu *vcpu); 103 extern void kvmppc_core_queue_external(struct kvm_vcpu *vcpu, 104 struct kvm_interrupt *irq); 105 extern void kvmppc_core_dequeue_external(struct kvm_vcpu *vcpu, 106 struct kvm_interrupt *irq); 107 108 extern int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu, 109 unsigned int op, int *advance); 110 extern int kvmppc_core_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, 111 ulong val); 112 extern int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, 113 ulong *val); 114 115 extern int kvmppc_booke_init(void); 116 extern void kvmppc_booke_exit(void); 117 118 extern void kvmppc_core_destroy_mmu(struct kvm_vcpu *vcpu); 119 extern int kvmppc_kvm_pv(struct kvm_vcpu *vcpu); 120 extern void kvmppc_map_magic(struct kvm_vcpu *vcpu); 121 122 extern long kvmppc_alloc_hpt(struct kvm *kvm, u32 *htab_orderp); 123 extern long kvmppc_alloc_reset_hpt(struct kvm *kvm, u32 *htab_orderp); 124 extern void kvmppc_free_hpt(struct kvm *kvm); 125 extern long kvmppc_prepare_vrma(struct kvm *kvm, 126 struct kvm_userspace_memory_region *mem); 127 extern void kvmppc_map_vrma(struct kvm_vcpu *vcpu, 128 struct kvm_memory_slot *memslot, unsigned long porder); 129 extern int kvmppc_pseries_do_hcall(struct kvm_vcpu *vcpu); 130 extern long kvm_vm_ioctl_create_spapr_tce(struct kvm *kvm, 131 struct kvm_create_spapr_tce *args); 132 extern long kvmppc_h_put_tce(struct kvm_vcpu *vcpu, unsigned long liobn, 133 unsigned long ioba, unsigned long tce); 134 extern long kvm_vm_ioctl_allocate_rma(struct kvm *kvm, 135 struct kvm_allocate_rma *rma); 136 extern struct kvmppc_linear_info *kvm_alloc_rma(void); 137 extern void kvm_release_rma(struct kvmppc_linear_info *ri); 138 extern struct kvmppc_linear_info *kvm_alloc_hpt(void); 139 extern void kvm_release_hpt(struct kvmppc_linear_info *li); 140 extern int kvmppc_core_init_vm(struct kvm *kvm); 141 extern void kvmppc_core_destroy_vm(struct kvm *kvm); 142 extern int kvmppc_core_prepare_memory_region(struct kvm *kvm, 143 struct kvm_userspace_memory_region *mem); 144 extern void kvmppc_core_commit_memory_region(struct kvm *kvm, 145 struct kvm_userspace_memory_region *mem); 146 extern int kvm_vm_ioctl_get_smmu_info(struct kvm *kvm, 147 struct kvm_ppc_smmu_info *info); 148 149 extern int kvmppc_bookehv_init(void); 150 extern void kvmppc_bookehv_exit(void); 151 152 /* 153 * Cuts out inst bits with ordering according to spec. 154 * That means the leftmost bit is zero. All given bits are included. 155 */ 156 static inline u32 kvmppc_get_field(u64 inst, int msb, int lsb) 157 { 158 u32 r; 159 u32 mask; 160 161 BUG_ON(msb > lsb); 162 163 mask = (1 << (lsb - msb + 1)) - 1; 164 r = (inst >> (63 - lsb)) & mask; 165 166 return r; 167 } 168 169 /* 170 * Replaces inst bits with ordering according to spec. 171 */ 172 static inline u32 kvmppc_set_field(u64 inst, int msb, int lsb, int value) 173 { 174 u32 r; 175 u32 mask; 176 177 BUG_ON(msb > lsb); 178 179 mask = ((1 << (lsb - msb + 1)) - 1) << (63 - lsb); 180 r = (inst & ~mask) | ((value << (63 - lsb)) & mask); 181 182 return r; 183 } 184 185 void kvmppc_core_get_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs); 186 int kvmppc_core_set_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs); 187 188 void kvmppc_get_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs); 189 int kvmppc_set_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs); 190 191 int kvm_vcpu_ioctl_get_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg); 192 int kvm_vcpu_ioctl_set_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg); 193 194 void kvmppc_set_pid(struct kvm_vcpu *vcpu, u32 pid); 195 196 #ifdef CONFIG_KVM_BOOK3S_64_HV 197 static inline void kvmppc_set_xics_phys(int cpu, unsigned long addr) 198 { 199 paca[cpu].kvm_hstate.xics_phys = addr; 200 } 201 202 extern void kvm_linear_init(void); 203 204 #else 205 static inline void kvmppc_set_xics_phys(int cpu, unsigned long addr) 206 {} 207 208 static inline void kvm_linear_init(void) 209 {} 210 #endif 211 212 int kvm_vcpu_ioctl_config_tlb(struct kvm_vcpu *vcpu, 213 struct kvm_config_tlb *cfg); 214 int kvm_vcpu_ioctl_dirty_tlb(struct kvm_vcpu *vcpu, 215 struct kvm_dirty_tlb *cfg); 216 217 long kvmppc_alloc_lpid(void); 218 void kvmppc_claim_lpid(long lpid); 219 void kvmppc_free_lpid(long lpid); 220 void kvmppc_init_lpid(unsigned long nr_lpids); 221 222 static inline void kvmppc_mmu_flush_icache(pfn_t pfn) 223 { 224 /* Clear i-cache for new pages */ 225 struct page *page; 226 page = pfn_to_page(pfn); 227 if (!test_bit(PG_arch_1, &page->flags)) { 228 flush_dcache_icache_page(page); 229 set_bit(PG_arch_1, &page->flags); 230 } 231 } 232 233 234 #endif /* __POWERPC_KVM_PPC_H__ */ 235