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Hollis Blanchardbbf45ba2008-04-16 23:28:09 -05001/*
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>
Alexander Graf1c0006d2010-01-15 14:49:12 +010031#ifdef CONFIG_PPC_BOOK3S
32#include <asm/kvm_book3s.h>
Alexander Grafc7f38f42010-04-16 00:11:40 +020033#else
34#include <asm/kvm_booke.h>
Alexander Graf1c0006d2010-01-15 14:49:12 +010035#endif
Paul Mackerras371fefd2011-06-29 00:23:08 +000036#ifdef CONFIG_KVM_BOOK3S_64_HANDLER
37#include <asm/paca.h>
38#endif
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -050039
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -050040enum 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 */
Alexander Graf37f5bca2010-02-19 11:00:31 +010045 EMULATE_AGAIN, /* something went wrong. go again */
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -050046};
47
Paul Mackerrasdf6909e52011-06-29 00:19:50 +000048extern int kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu);
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -050049extern int __kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu);
50extern char kvmppc_handlers_start[];
51extern unsigned long kvmppc_handler_len;
Alexander Graf29eb61b2009-10-30 05:47:07 +000052extern void kvmppc_handler_highmem(void);
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -050053
54extern void kvmppc_dump_vcpu(struct kvm_vcpu *vcpu);
55extern int kvmppc_handle_load(struct kvm_run *run, struct kvm_vcpu *vcpu,
56 unsigned int rt, unsigned int bytes,
57 int is_bigendian);
Alexander Graf3587d532010-02-19 11:00:30 +010058extern int kvmppc_handle_loads(struct kvm_run *run, struct kvm_vcpu *vcpu,
59 unsigned int rt, unsigned int bytes,
60 int is_bigendian);
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -050061extern int kvmppc_handle_store(struct kvm_run *run, struct kvm_vcpu *vcpu,
Alexander Grafb104d062010-02-19 11:00:29 +010062 u64 val, unsigned int bytes, int is_bigendian);
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -050063
64extern int kvmppc_emulate_instruction(struct kvm_run *run,
65 struct kvm_vcpu *vcpu);
Hollis Blanchardce263d72008-05-21 18:22:51 -050066extern int kvmppc_emulate_mmio(struct kvm_run *run, struct kvm_vcpu *vcpu);
Hollis Blanchard75f74f02008-11-05 09:36:16 -060067extern void kvmppc_emulate_dec(struct kvm_vcpu *vcpu);
Scott Wood5ce941e2011-04-27 17:24:21 -050068extern u32 kvmppc_get_dec(struct kvm_vcpu *vcpu, u64 tb);
Alexander Grafaf8f38b2011-08-10 13:57:08 +020069extern int kvmppc_sanity_check(struct kvm_vcpu *vcpu);
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -050070
Hollis Blanchardecc09812009-01-03 16:22:59 -060071/* Core-specific hooks */
72
Hollis Blanchard89168612008-12-02 15:51:53 -060073extern void kvmppc_mmu_map(struct kvm_vcpu *vcpu, u64 gvaddr, gpa_t gpaddr,
Hollis Blanchard7924bd42008-12-02 15:51:55 -060074 unsigned int gtlb_idx);
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -050075extern void kvmppc_mmu_priv_switch(struct kvm_vcpu *vcpu, int usermode);
Hollis Blanchard49dd2c42008-07-25 13:54:53 -050076extern void kvmppc_mmu_switch_pid(struct kvm_vcpu *vcpu, u32 pid);
Hollis Blanchardecc09812009-01-03 16:22:59 -060077extern void kvmppc_mmu_destroy(struct kvm_vcpu *vcpu);
Alexander Graf9cc5e952010-04-16 00:11:45 +020078extern int kvmppc_mmu_init(struct kvm_vcpu *vcpu);
Hollis Blanchardfa86b8d2009-01-03 16:23:03 -060079extern int kvmppc_mmu_dtlb_index(struct kvm_vcpu *vcpu, gva_t eaddr);
80extern int kvmppc_mmu_itlb_index(struct kvm_vcpu *vcpu, gva_t eaddr);
Hollis Blanchardbe8d1ca2009-01-03 16:23:02 -060081extern gpa_t kvmppc_mmu_xlate(struct kvm_vcpu *vcpu, unsigned int gtlb_index,
82 gva_t eaddr);
Hollis Blanchardb52a6382009-01-03 16:23:11 -060083extern void kvmppc_mmu_dtlb_miss(struct kvm_vcpu *vcpu);
84extern void kvmppc_mmu_itlb_miss(struct kvm_vcpu *vcpu);
Hollis Blanchard9dd921c2008-11-05 09:36:14 -060085
Hollis Blancharddb93f572008-11-05 09:36:18 -060086extern struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm,
87 unsigned int id);
88extern void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu);
Hollis Blanchard5cbb5102008-11-05 09:36:17 -060089extern int kvmppc_core_vcpu_setup(struct kvm_vcpu *vcpu);
Hollis Blanchard9dd921c2008-11-05 09:36:14 -060090extern int kvmppc_core_check_processor_compat(void);
Hollis Blanchard5cbb5102008-11-05 09:36:17 -060091extern int kvmppc_core_vcpu_translate(struct kvm_vcpu *vcpu,
92 struct kvm_translation *tr);
Hollis Blanchard9dd921c2008-11-05 09:36:14 -060093
94extern void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu);
95extern void kvmppc_core_vcpu_put(struct kvm_vcpu *vcpu);
96
Hollis Blanchard9dd921c2008-11-05 09:36:14 -060097extern void kvmppc_core_deliver_interrupts(struct kvm_vcpu *vcpu);
98extern int kvmppc_core_pending_dec(struct kvm_vcpu *vcpu);
Alexander Graf25a8a022010-01-08 02:58:07 +010099extern void kvmppc_core_queue_program(struct kvm_vcpu *vcpu, ulong flags);
Hollis Blanchard9dd921c2008-11-05 09:36:14 -0600100extern void kvmppc_core_queue_dec(struct kvm_vcpu *vcpu);
Alexander Graf7706664d2009-12-21 20:21:24 +0100101extern void kvmppc_core_dequeue_dec(struct kvm_vcpu *vcpu);
Hollis Blanchard9dd921c2008-11-05 09:36:14 -0600102extern void kvmppc_core_queue_external(struct kvm_vcpu *vcpu,
103 struct kvm_interrupt *irq);
Alexander Graf18978762010-03-24 21:48:18 +0100104extern void kvmppc_core_dequeue_external(struct kvm_vcpu *vcpu,
105 struct kvm_interrupt *irq);
Hollis Blanchard9dd921c2008-11-05 09:36:14 -0600106
Hollis Blanchard75f74f02008-11-05 09:36:16 -0600107extern int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu,
108 unsigned int op, int *advance);
109extern int kvmppc_core_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, int rs);
110extern int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt);
111
Hollis Blancharddb93f572008-11-05 09:36:18 -0600112extern int kvmppc_booke_init(void);
113extern void kvmppc_booke_exit(void);
114
Hollis Blanchardc30f8a62008-11-24 11:37:38 -0600115extern void kvmppc_core_destroy_mmu(struct kvm_vcpu *vcpu);
Alexander Graf2a342ed2010-07-29 14:47:48 +0200116extern int kvmppc_kvm_pv(struct kvm_vcpu *vcpu);
Scott Wooda4cd8b22011-06-14 18:34:41 -0500117extern void kvmppc_map_magic(struct kvm_vcpu *vcpu);
Hollis Blanchardc30f8a62008-11-24 11:37:38 -0600118
Paul Mackerrasde56a942011-06-29 00:21:34 +0000119extern long kvmppc_alloc_hpt(struct kvm *kvm);
120extern void kvmppc_free_hpt(struct kvm *kvm);
121extern long kvmppc_prepare_vrma(struct kvm *kvm,
122 struct kvm_userspace_memory_region *mem);
123extern void kvmppc_map_vrma(struct kvm *kvm,
124 struct kvm_userspace_memory_region *mem);
Paul Mackerrasa8606e22011-06-29 00:22:05 +0000125extern int kvmppc_pseries_do_hcall(struct kvm_vcpu *vcpu);
David Gibson54738c02011-06-29 00:22:41 +0000126extern long kvm_vm_ioctl_create_spapr_tce(struct kvm *kvm,
127 struct kvm_create_spapr_tce *args);
Paul Mackerrasaa04b4c2011-06-29 00:25:44 +0000128extern long kvm_vm_ioctl_allocate_rma(struct kvm *kvm,
129 struct kvm_allocate_rma *rma);
130extern struct kvmppc_rma_info *kvm_alloc_rma(void);
131extern void kvm_release_rma(struct kvmppc_rma_info *ri);
Paul Mackerrasf9e05542011-06-29 00:19:22 +0000132extern int kvmppc_core_init_vm(struct kvm *kvm);
133extern void kvmppc_core_destroy_vm(struct kvm *kvm);
134extern int kvmppc_core_prepare_memory_region(struct kvm *kvm,
135 struct kvm_userspace_memory_region *mem);
136extern void kvmppc_core_commit_memory_region(struct kvm *kvm,
137 struct kvm_userspace_memory_region *mem);
138
Alexander Graf0564ee82010-02-19 11:00:42 +0100139/*
140 * Cuts out inst bits with ordering according to spec.
141 * That means the leftmost bit is zero. All given bits are included.
142 */
143static inline u32 kvmppc_get_field(u64 inst, int msb, int lsb)
144{
145 u32 r;
146 u32 mask;
147
148 BUG_ON(msb > lsb);
149
150 mask = (1 << (lsb - msb + 1)) - 1;
151 r = (inst >> (63 - lsb)) & mask;
152
153 return r;
154}
155
156/*
157 * Replaces inst bits with ordering according to spec.
158 */
159static inline u32 kvmppc_set_field(u64 inst, int msb, int lsb, int value)
160{
161 u32 r;
162 u32 mask;
163
164 BUG_ON(msb > lsb);
165
166 mask = ((1 << (lsb - msb + 1)) - 1) << (63 - lsb);
167 r = (inst & ~mask) | ((value << (63 - lsb)) & mask);
168
169 return r;
170}
171
Scott Wood5ce941e2011-04-27 17:24:21 -0500172void kvmppc_core_get_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
173int kvmppc_core_set_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
174
175void kvmppc_get_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
176int kvmppc_set_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
177
178void kvmppc_set_pid(struct kvm_vcpu *vcpu, u32 pid);
179
Paul Mackerras371fefd2011-06-29 00:23:08 +0000180#ifdef CONFIG_KVM_BOOK3S_64_HV
181static inline void kvmppc_set_xics_phys(int cpu, unsigned long addr)
182{
183 paca[cpu].kvm_hstate.xics_phys = addr;
184}
Paul Mackerrasaa04b4c2011-06-29 00:25:44 +0000185
186extern void kvm_rma_init(void);
187
Paul Mackerras371fefd2011-06-29 00:23:08 +0000188#else
189static inline void kvmppc_set_xics_phys(int cpu, unsigned long addr)
190{}
Paul Mackerrasaa04b4c2011-06-29 00:25:44 +0000191
192static inline void kvm_rma_init(void)
193{}
Paul Mackerras371fefd2011-06-29 00:23:08 +0000194#endif
195
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -0500196#endif /* __POWERPC_KVM_PPC_H__ */