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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
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -050036
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -050037enum emulation_result {
38 EMULATE_DONE, /* no further processing */
39 EMULATE_DO_MMIO, /* kvm_run filled with MMIO request */
40 EMULATE_DO_DCR, /* kvm_run filled with DCR request */
41 EMULATE_FAIL, /* can't emulate this instruction */
Alexander Graf37f5bca2010-02-19 11:00:31 +010042 EMULATE_AGAIN, /* something went wrong. go again */
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -050043};
44
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -050045extern int __kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu);
46extern char kvmppc_handlers_start[];
47extern unsigned long kvmppc_handler_len;
Alexander Graf29eb61b2009-10-30 05:47:07 +000048extern void kvmppc_handler_highmem(void);
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -050049
50extern void kvmppc_dump_vcpu(struct kvm_vcpu *vcpu);
51extern int kvmppc_handle_load(struct kvm_run *run, struct kvm_vcpu *vcpu,
52 unsigned int rt, unsigned int bytes,
53 int is_bigendian);
Alexander Graf3587d532010-02-19 11:00:30 +010054extern int kvmppc_handle_loads(struct kvm_run *run, struct kvm_vcpu *vcpu,
55 unsigned int rt, unsigned int bytes,
56 int is_bigendian);
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -050057extern int kvmppc_handle_store(struct kvm_run *run, struct kvm_vcpu *vcpu,
Alexander Grafb104d062010-02-19 11:00:29 +010058 u64 val, unsigned int bytes, int is_bigendian);
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -050059
60extern int kvmppc_emulate_instruction(struct kvm_run *run,
61 struct kvm_vcpu *vcpu);
Hollis Blanchardce263d72008-05-21 18:22:51 -050062extern int kvmppc_emulate_mmio(struct kvm_run *run, struct kvm_vcpu *vcpu);
Hollis Blanchard75f74f02008-11-05 09:36:16 -060063extern void kvmppc_emulate_dec(struct kvm_vcpu *vcpu);
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -050064
Hollis Blanchardecc09812009-01-03 16:22:59 -060065/* Core-specific hooks */
66
Hollis Blanchard89168612008-12-02 15:51:53 -060067extern void kvmppc_mmu_map(struct kvm_vcpu *vcpu, u64 gvaddr, gpa_t gpaddr,
Hollis Blanchard7924bd42008-12-02 15:51:55 -060068 unsigned int gtlb_idx);
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -050069extern void kvmppc_mmu_priv_switch(struct kvm_vcpu *vcpu, int usermode);
Hollis Blanchard49dd2c42008-07-25 13:54:53 -050070extern void kvmppc_mmu_switch_pid(struct kvm_vcpu *vcpu, u32 pid);
Hollis Blanchardecc09812009-01-03 16:22:59 -060071extern void kvmppc_mmu_destroy(struct kvm_vcpu *vcpu);
Hollis Blanchardfa86b8d2009-01-03 16:23:03 -060072extern int kvmppc_mmu_dtlb_index(struct kvm_vcpu *vcpu, gva_t eaddr);
73extern int kvmppc_mmu_itlb_index(struct kvm_vcpu *vcpu, gva_t eaddr);
Hollis Blanchardbe8d1ca2009-01-03 16:23:02 -060074extern gpa_t kvmppc_mmu_xlate(struct kvm_vcpu *vcpu, unsigned int gtlb_index,
75 gva_t eaddr);
Hollis Blanchardb52a6382009-01-03 16:23:11 -060076extern void kvmppc_mmu_dtlb_miss(struct kvm_vcpu *vcpu);
77extern void kvmppc_mmu_itlb_miss(struct kvm_vcpu *vcpu);
Hollis Blanchard9dd921c2008-11-05 09:36:14 -060078
Hollis Blancharddb93f572008-11-05 09:36:18 -060079extern struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm,
80 unsigned int id);
81extern void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu);
Hollis Blanchard5cbb5102008-11-05 09:36:17 -060082extern int kvmppc_core_vcpu_setup(struct kvm_vcpu *vcpu);
Hollis Blanchard9dd921c2008-11-05 09:36:14 -060083extern int kvmppc_core_check_processor_compat(void);
Hollis Blanchard5cbb5102008-11-05 09:36:17 -060084extern int kvmppc_core_vcpu_translate(struct kvm_vcpu *vcpu,
85 struct kvm_translation *tr);
Hollis Blanchard9dd921c2008-11-05 09:36:14 -060086
87extern void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu);
88extern void kvmppc_core_vcpu_put(struct kvm_vcpu *vcpu);
89
Hollis Blanchard9dd921c2008-11-05 09:36:14 -060090extern void kvmppc_core_deliver_interrupts(struct kvm_vcpu *vcpu);
91extern int kvmppc_core_pending_dec(struct kvm_vcpu *vcpu);
Alexander Graf25a8a022010-01-08 02:58:07 +010092extern void kvmppc_core_queue_program(struct kvm_vcpu *vcpu, ulong flags);
Hollis Blanchard9dd921c2008-11-05 09:36:14 -060093extern void kvmppc_core_queue_dec(struct kvm_vcpu *vcpu);
Alexander Graf7706664d2009-12-21 20:21:24 +010094extern void kvmppc_core_dequeue_dec(struct kvm_vcpu *vcpu);
Hollis Blanchard9dd921c2008-11-05 09:36:14 -060095extern void kvmppc_core_queue_external(struct kvm_vcpu *vcpu,
96 struct kvm_interrupt *irq);
Alexander Graf18978762010-03-24 21:48:18 +010097extern void kvmppc_core_dequeue_external(struct kvm_vcpu *vcpu,
98 struct kvm_interrupt *irq);
Hollis Blanchard9dd921c2008-11-05 09:36:14 -060099
Hollis Blanchard75f74f02008-11-05 09:36:16 -0600100extern int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu,
101 unsigned int op, int *advance);
102extern int kvmppc_core_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, int rs);
103extern int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt);
104
Hollis Blancharddb93f572008-11-05 09:36:18 -0600105extern int kvmppc_booke_init(void);
106extern void kvmppc_booke_exit(void);
107
Hollis Blanchardc30f8a62008-11-24 11:37:38 -0600108extern void kvmppc_core_destroy_mmu(struct kvm_vcpu *vcpu);
109
Alexander Graf0564ee82010-02-19 11:00:42 +0100110/*
111 * Cuts out inst bits with ordering according to spec.
112 * That means the leftmost bit is zero. All given bits are included.
113 */
114static inline u32 kvmppc_get_field(u64 inst, int msb, int lsb)
115{
116 u32 r;
117 u32 mask;
118
119 BUG_ON(msb > lsb);
120
121 mask = (1 << (lsb - msb + 1)) - 1;
122 r = (inst >> (63 - lsb)) & mask;
123
124 return r;
125}
126
127/*
128 * Replaces inst bits with ordering according to spec.
129 */
130static inline u32 kvmppc_set_field(u64 inst, int msb, int lsb, int value)
131{
132 u32 r;
133 u32 mask;
134
135 BUG_ON(msb > lsb);
136
137 mask = ((1 << (lsb - msb + 1)) - 1) << (63 - lsb);
138 r = (inst & ~mask) | ((value << (63 - lsb)) & mask);
139
140 return r;
141}
142
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -0500143#endif /* __POWERPC_KVM_PPC_H__ */