tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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. 2007
16 *
17 * Authors: Hollis Blanchard <hollisb@us.ibm.com>
18 */
19
20#ifndef __POWERPC_KVM_HOST_H__
21#define __POWERPC_KVM_HOST_H__
22
23#include <linux/mutex.h>
24#include <linux/timer.h>
25#include <linux/types.h>
26#include <linux/kvm_types.h>
27#include <asm/kvm_asm.h>
28
29#define KVM_MAX_VCPUS 1
30#define KVM_MEMORY_SLOTS 32
31/* memory slots that does not exposed to userspace */
32#define KVM_PRIVATE_MEM_SLOTS 4
33
34/* We don't currently support large pages. */
35#define KVM_PAGES_PER_HPAGE (1<<31)
36
37struct kvm;
38struct kvm_run;
39struct kvm_vcpu;
40
41struct kvm_vm_stat {
42 u32 remote_tlb_flush;
43};
44
45struct kvm_vcpu_stat {
46 u32 sum_exits;
47 u32 mmio_exits;
48 u32 dcr_exits;
49 u32 signal_exits;
50 u32 light_exits;
51 /* Account for special types of light exits: */
52 u32 itlb_real_miss_exits;
53 u32 itlb_virt_miss_exits;
54 u32 dtlb_real_miss_exits;
55 u32 dtlb_virt_miss_exits;
56 u32 syscall_exits;
57 u32 isi_exits;
58 u32 dsi_exits;
59 u32 emulated_inst_exits;
60 u32 dec_exits;
61 u32 ext_intr_exits;
62 u32 halt_wakeup;
63};
64
65struct tlbe {
66 u32 tid; /* Only the low 8 bits are used. */
67 u32 word0;
68 u32 word1;
69 u32 word2;
70};
71
72struct kvm_arch {
73};
74
75struct kvm_vcpu_arch {
76 /* Unmodified copy of the guest's TLB. */
77 struct tlbe guest_tlb[PPC44x_TLB_SIZE];
78 /* TLB that's actually used when the guest is running. */
79 struct tlbe shadow_tlb[PPC44x_TLB_SIZE];
80 /* Pages which are referenced in the shadow TLB. */
81 struct page *shadow_pages[PPC44x_TLB_SIZE];
82 /* Copy of the host's TLB. */
83 struct tlbe host_tlb[PPC44x_TLB_SIZE];
84
85 u32 host_stack;
86 u32 host_pid;
87
88 u64 fpr[32];
89 u32 gpr[32];
90
91 u32 pc;
92 u32 cr;
93 u32 ctr;
94 u32 lr;
95 u32 xer;
96
97 u32 msr;
98 u32 mmucr;
99 u32 sprg0;
100 u32 sprg1;
101 u32 sprg2;
102 u32 sprg3;
103 u32 sprg4;
104 u32 sprg5;
105 u32 sprg6;
106 u32 sprg7;
107 u32 srr0;
108 u32 srr1;
109 u32 csrr0;
110 u32 csrr1;
111 u32 dsrr0;
112 u32 dsrr1;
113 u32 dear;
114 u32 esr;
115 u32 dec;
116 u32 decar;
117 u32 tbl;
118 u32 tbu;
119 u32 tcr;
120 u32 tsr;
121 u32 ivor[16];
122 u32 ivpr;
123 u32 pir;
124 u32 pid;
125 u32 pvr;
126 u32 ccr0;
127 u32 ccr1;
128 u32 dbcr0;
129 u32 dbcr1;
130
131 u32 last_inst;
132 u32 fault_dear;
133 u32 fault_esr;
134 gpa_t paddr_accessed;
135
136 u8 io_gpr; /* GPR used as IO source/target */
137 u8 mmio_is_bigendian;
138 u8 dcr_needed;
139 u8 dcr_is_write;
140
141 u32 cpr0_cfgaddr; /* holds the last set cpr0_cfgaddr */
142
143 struct timer_list dec_timer;
144 unsigned long pending_exceptions;
145};
146
147struct kvm_guest_debug {
148 int enabled;
149 unsigned long bp[4];
150 int singlestep;
151};
152
153#endif /* __POWERPC_KVM_HOST_H__ */