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.
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.
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.
15 * Copyright IBM Corp. 2008
17 * Authors: Hollis Blanchard <hollisb@us.ibm.com>
20 #ifndef __POWERPC_KVM_PPC_H__
21 #define __POWERPC_KVM_PPC_H__
23 /* This file exists just so we can dereference kvm_vcpu, avoiding nested header
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 #include <linux/bug.h>
32 #ifdef CONFIG_PPC_BOOK3S
33 #include <asm/kvm_book3s.h>
35 #include <asm/kvm_booke.h>
37 #ifdef CONFIG_KVM_BOOK3S_64_HANDLER
41 enum emulation_result {
42 EMULATE_DONE, /* no further processing */
43 EMULATE_DO_MMIO, /* kvm_run filled with MMIO request */
44 EMULATE_DO_DCR, /* kvm_run filled with DCR request */
45 EMULATE_FAIL, /* can't emulate this instruction */
46 EMULATE_AGAIN, /* something went wrong. go again */
47 EMULATE_DO_PAPR, /* kvm_run filled with PAPR request */
50 extern int kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu);
51 extern int __kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu);
52 extern void kvmppc_handler_highmem(void);
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,
58 extern int kvmppc_handle_loads(struct kvm_run *run, struct kvm_vcpu *vcpu,
59 unsigned int rt, unsigned int bytes,
61 extern int kvmppc_handle_store(struct kvm_run *run, struct kvm_vcpu *vcpu,
62 u64 val, unsigned int bytes, int is_bigendian);
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 extern int kvmppc_subarch_vcpu_init(struct kvm_vcpu *vcpu);
72 extern void kvmppc_subarch_vcpu_uninit(struct kvm_vcpu *vcpu);
74 /* Core-specific hooks */
76 extern void kvmppc_mmu_map(struct kvm_vcpu *vcpu, u64 gvaddr, gpa_t gpaddr,
77 unsigned int gtlb_idx);
78 extern void kvmppc_mmu_priv_switch(struct kvm_vcpu *vcpu, int usermode);
79 extern void kvmppc_mmu_switch_pid(struct kvm_vcpu *vcpu, u32 pid);
80 extern void kvmppc_mmu_destroy(struct kvm_vcpu *vcpu);
81 extern int kvmppc_mmu_init(struct kvm_vcpu *vcpu);
82 extern int kvmppc_mmu_dtlb_index(struct kvm_vcpu *vcpu, gva_t eaddr);
83 extern int kvmppc_mmu_itlb_index(struct kvm_vcpu *vcpu, gva_t eaddr);
84 extern gpa_t kvmppc_mmu_xlate(struct kvm_vcpu *vcpu, unsigned int gtlb_index,
86 extern void kvmppc_mmu_dtlb_miss(struct kvm_vcpu *vcpu);
87 extern void kvmppc_mmu_itlb_miss(struct kvm_vcpu *vcpu);
89 extern struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm,
91 extern void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu);
92 extern int kvmppc_core_vcpu_setup(struct kvm_vcpu *vcpu);
93 extern int kvmppc_core_check_processor_compat(void);
94 extern int kvmppc_core_vcpu_translate(struct kvm_vcpu *vcpu,
95 struct kvm_translation *tr);
97 extern void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu);
98 extern void kvmppc_core_vcpu_put(struct kvm_vcpu *vcpu);
100 extern int kvmppc_core_prepare_to_enter(struct kvm_vcpu *vcpu);
101 extern int kvmppc_core_pending_dec(struct kvm_vcpu *vcpu);
102 extern void kvmppc_core_queue_program(struct kvm_vcpu *vcpu, ulong flags);
103 extern void kvmppc_core_queue_dec(struct kvm_vcpu *vcpu);
104 extern void kvmppc_core_dequeue_dec(struct kvm_vcpu *vcpu);
105 extern void kvmppc_core_queue_external(struct kvm_vcpu *vcpu,
106 struct kvm_interrupt *irq);
107 extern void kvmppc_core_dequeue_external(struct kvm_vcpu *vcpu,
108 struct kvm_interrupt *irq);
109 extern void kvmppc_core_flush_tlb(struct kvm_vcpu *vcpu);
111 extern int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu,
112 unsigned int op, int *advance);
113 extern int kvmppc_core_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn,
115 extern int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn,
117 extern int kvmppc_core_check_requests(struct kvm_vcpu *vcpu);
119 extern int kvmppc_booke_init(void);
120 extern void kvmppc_booke_exit(void);
122 extern void kvmppc_core_destroy_mmu(struct kvm_vcpu *vcpu);
123 extern int kvmppc_kvm_pv(struct kvm_vcpu *vcpu);
124 extern void kvmppc_map_magic(struct kvm_vcpu *vcpu);
126 extern long kvmppc_alloc_hpt(struct kvm *kvm, u32 *htab_orderp);
127 extern long kvmppc_alloc_reset_hpt(struct kvm *kvm, u32 *htab_orderp);
128 extern void kvmppc_free_hpt(struct kvm *kvm);
129 extern long kvmppc_prepare_vrma(struct kvm *kvm,
130 struct kvm_userspace_memory_region *mem);
131 extern void kvmppc_map_vrma(struct kvm_vcpu *vcpu,
132 struct kvm_memory_slot *memslot, unsigned long porder);
133 extern int kvmppc_pseries_do_hcall(struct kvm_vcpu *vcpu);
134 extern long kvm_vm_ioctl_create_spapr_tce(struct kvm *kvm,
135 struct kvm_create_spapr_tce *args);
136 extern long kvmppc_h_put_tce(struct kvm_vcpu *vcpu, unsigned long liobn,
137 unsigned long ioba, unsigned long tce);
138 extern long kvm_vm_ioctl_allocate_rma(struct kvm *kvm,
139 struct kvm_allocate_rma *rma);
140 extern struct kvmppc_linear_info *kvm_alloc_rma(void);
141 extern void kvm_release_rma(struct kvmppc_linear_info *ri);
142 extern struct kvmppc_linear_info *kvm_alloc_hpt(void);
143 extern void kvm_release_hpt(struct kvmppc_linear_info *li);
144 extern int kvmppc_core_init_vm(struct kvm *kvm);
145 extern void kvmppc_core_destroy_vm(struct kvm *kvm);
146 extern void kvmppc_core_free_memslot(struct kvm_memory_slot *free,
147 struct kvm_memory_slot *dont);
148 extern int kvmppc_core_create_memslot(struct kvm_memory_slot *slot,
149 unsigned long npages);
150 extern int kvmppc_core_prepare_memory_region(struct kvm *kvm,
151 struct kvm_memory_slot *memslot,
152 struct kvm_userspace_memory_region *mem);
153 extern void kvmppc_core_commit_memory_region(struct kvm *kvm,
154 struct kvm_userspace_memory_region *mem,
155 struct kvm_memory_slot old);
156 extern int kvm_vm_ioctl_get_smmu_info(struct kvm *kvm,
157 struct kvm_ppc_smmu_info *info);
158 extern void kvmppc_core_flush_memslot(struct kvm *kvm,
159 struct kvm_memory_slot *memslot);
161 extern int kvmppc_bookehv_init(void);
162 extern void kvmppc_bookehv_exit(void);
164 extern int kvmppc_prepare_to_enter(struct kvm_vcpu *vcpu);
166 extern int kvm_vm_ioctl_get_htab_fd(struct kvm *kvm, struct kvm_get_htab_fd *);
169 * Cuts out inst bits with ordering according to spec.
170 * That means the leftmost bit is zero. All given bits are included.
172 static inline u32 kvmppc_get_field(u64 inst, int msb, int lsb)
179 mask = (1 << (lsb - msb + 1)) - 1;
180 r = (inst >> (63 - lsb)) & mask;
186 * Replaces inst bits with ordering according to spec.
188 static inline u32 kvmppc_set_field(u64 inst, int msb, int lsb, int value)
195 mask = ((1 << (lsb - msb + 1)) - 1) << (63 - lsb);
196 r = (inst & ~mask) | ((value << (63 - lsb)) & mask);
201 union kvmppc_one_reg {
212 #define one_reg_size(id) \
213 (1ul << (((id) & KVM_REG_SIZE_MASK) >> KVM_REG_SIZE_SHIFT))
215 #define get_reg_val(id, reg) ({ \
216 union kvmppc_one_reg __u; \
217 switch (one_reg_size(id)) { \
218 case 4: __u.wval = (reg); break; \
219 case 8: __u.dval = (reg); break; \
226 #define set_reg_val(id, val) ({ \
228 switch (one_reg_size(id)) { \
229 case 4: __v = (val).wval; break; \
230 case 8: __v = (val).dval; break; \
236 void kvmppc_core_get_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
237 int kvmppc_core_set_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
239 void kvmppc_get_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
240 int kvmppc_set_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
242 int kvm_vcpu_ioctl_get_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg);
243 int kvm_vcpu_ioctl_set_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg);
244 int kvmppc_get_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *);
245 int kvmppc_set_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *);
247 void kvmppc_set_pid(struct kvm_vcpu *vcpu, u32 pid);
249 #ifdef CONFIG_KVM_BOOK3S_64_HV
250 static inline void kvmppc_set_xics_phys(int cpu, unsigned long addr)
252 paca[cpu].kvm_hstate.xics_phys = addr;
255 extern void kvm_linear_init(void);
258 static inline void kvmppc_set_xics_phys(int cpu, unsigned long addr)
261 static inline void kvm_linear_init(void)
265 static inline void kvmppc_set_epr(struct kvm_vcpu *vcpu, u32 epr)
267 #ifdef CONFIG_KVM_BOOKE_HV
268 mtspr(SPRN_GEPR, epr);
269 #elif defined(CONFIG_BOOKE)
270 vcpu->arch.epr = epr;
274 int kvm_vcpu_ioctl_config_tlb(struct kvm_vcpu *vcpu,
275 struct kvm_config_tlb *cfg);
276 int kvm_vcpu_ioctl_dirty_tlb(struct kvm_vcpu *vcpu,
277 struct kvm_dirty_tlb *cfg);
279 long kvmppc_alloc_lpid(void);
280 void kvmppc_claim_lpid(long lpid);
281 void kvmppc_free_lpid(long lpid);
282 void kvmppc_init_lpid(unsigned long nr_lpids);
284 static inline void kvmppc_mmu_flush_icache(pfn_t pfn)
286 /* Clear i-cache for new pages */
288 page = pfn_to_page(pfn);
289 if (!test_bit(PG_arch_1, &page->flags)) {
290 flush_dcache_icache_page(page);
291 set_bit(PG_arch_1, &page->flags);
295 /* Please call after prepare_to_enter. This function puts the lazy ee state
296 back to normal mode, without actually enabling interrupts. */
297 static inline void kvmppc_lazy_ee_enable(void)
300 /* Only need to enable IRQs by hard enabling them after this */
301 local_paca->irq_happened = 0;
302 local_paca->soft_enabled = 1;
306 static inline ulong kvmppc_get_ea_indexed(struct kvm_vcpu *vcpu, int ra, int rb)
311 ea = kvmppc_get_gpr(vcpu, rb);
313 ea += kvmppc_get_gpr(vcpu, ra);
315 #if defined(CONFIG_PPC_BOOK3E_64)
317 #elif defined(CONFIG_PPC_BOOK3S_64)
321 if (!(vcpu->arch.shared->msr & msr_64bit))
327 #endif /* __POWERPC_KVM_PPC_H__ */