]>
Commit | Line | Data |
---|---|---|
6f805823 VP |
1 | /* |
2 | * QEMU HAXM support | |
3 | * | |
4 | * Copyright (c) 2011 Intel Corporation | |
5 | * Written by: | |
6 | * Jiang Yunhong<yunhong.jiang@intel.com> | |
7 | * | |
8 | * This work is licensed under the terms of the GNU GPL, version 2 or later. | |
9 | * See the COPYING file in the top-level directory. | |
10 | * | |
11 | */ | |
12 | ||
13 | /* HAX module interface - darwin version */ | |
744fc054 | 14 | #include "qemu/osdep.h" |
6f805823 VP |
15 | #include <sys/ioctl.h> |
16 | ||
6f805823 VP |
17 | #include "target/i386/hax-i386.h" |
18 | ||
19 | hax_fd hax_mod_open(void) | |
20 | { | |
21 | int fd = open("/dev/HAX", O_RDWR); | |
22 | if (fd == -1) { | |
23 | fprintf(stderr, "Failed to open the hax module\n"); | |
24 | } | |
25 | ||
8cf58a49 | 26 | qemu_set_cloexec(fd); |
6f805823 VP |
27 | |
28 | return fd; | |
29 | } | |
30 | ||
7a5235c9 | 31 | int hax_populate_ram(uint64_t va, uint64_t size) |
6f805823 VP |
32 | { |
33 | int ret; | |
6f805823 VP |
34 | |
35 | if (!hax_global.vm || !hax_global.vm->fd) { | |
36 | fprintf(stderr, "Allocate memory before vm create?\n"); | |
37 | return -EINVAL; | |
38 | } | |
39 | ||
7a5235c9 YN |
40 | if (hax_global.supports_64bit_ramblock) { |
41 | struct hax_ramblock_info ramblock = { | |
42 | .start_va = va, | |
43 | .size = size, | |
44 | .reserved = 0 | |
45 | }; | |
46 | ||
47 | ret = ioctl(hax_global.vm->fd, HAX_VM_IOCTL_ADD_RAMBLOCK, &ramblock); | |
48 | } else { | |
49 | struct hax_alloc_ram_info info = { | |
50 | .size = (uint32_t)size, | |
51 | .pad = 0, | |
52 | .va = va | |
53 | }; | |
54 | ||
55 | ret = ioctl(hax_global.vm->fd, HAX_VM_IOCTL_ALLOC_RAM, &info); | |
56 | } | |
6f805823 | 57 | if (ret < 0) { |
7a5235c9 YN |
58 | fprintf(stderr, "Failed to register RAM block: ret=%d, va=0x%" PRIx64 |
59 | ", size=0x%" PRIx64 ", method=%s\n", ret, va, size, | |
60 | hax_global.supports_64bit_ramblock ? "new" : "legacy"); | |
6f805823 VP |
61 | return ret; |
62 | } | |
63 | return 0; | |
64 | } | |
65 | ||
66 | int hax_set_ram(uint64_t start_pa, uint32_t size, uint64_t host_va, int flags) | |
67 | { | |
68 | struct hax_set_ram_info info; | |
69 | int ret; | |
70 | ||
71 | info.pa_start = start_pa; | |
72 | info.size = size; | |
73 | info.va = host_va; | |
74 | info.flags = (uint8_t) flags; | |
75 | ||
76 | ret = ioctl(hax_global.vm->fd, HAX_VM_IOCTL_SET_RAM, &info); | |
77 | if (ret < 0) { | |
78 | return -errno; | |
79 | } | |
80 | return 0; | |
81 | } | |
82 | ||
83 | int hax_capability(struct hax_state *hax, struct hax_capabilityinfo *cap) | |
84 | { | |
85 | int ret; | |
86 | ||
87 | ret = ioctl(hax->fd, HAX_IOCTL_CAPABILITY, cap); | |
88 | if (ret == -1) { | |
89 | fprintf(stderr, "Failed to get HAX capability\n"); | |
90 | return -errno; | |
91 | } | |
92 | ||
93 | return 0; | |
94 | } | |
95 | ||
96 | int hax_mod_version(struct hax_state *hax, struct hax_module_version *version) | |
97 | { | |
98 | int ret; | |
99 | ||
100 | ret = ioctl(hax->fd, HAX_IOCTL_VERSION, version); | |
101 | if (ret == -1) { | |
102 | fprintf(stderr, "Failed to get HAX version\n"); | |
103 | return -errno; | |
104 | } | |
105 | ||
106 | return 0; | |
107 | } | |
108 | ||
109 | static char *hax_vm_devfs_string(int vm_id) | |
110 | { | |
acb9f95a | 111 | return g_strdup_printf("/dev/hax_vm/vm%02d", vm_id); |
6f805823 VP |
112 | } |
113 | ||
114 | static char *hax_vcpu_devfs_string(int vm_id, int vcpu_id) | |
115 | { | |
acb9f95a | 116 | return g_strdup_printf("/dev/hax_vm%02d/vcpu%02d", vm_id, vcpu_id); |
6f805823 VP |
117 | } |
118 | ||
119 | int hax_host_create_vm(struct hax_state *hax, int *vmid) | |
120 | { | |
121 | int ret; | |
122 | int vm_id = 0; | |
123 | ||
124 | if (hax_invalid_fd(hax->fd)) { | |
125 | return -EINVAL; | |
126 | } | |
127 | ||
128 | if (hax->vm) { | |
129 | return 0; | |
130 | } | |
131 | ||
132 | ret = ioctl(hax->fd, HAX_IOCTL_CREATE_VM, &vm_id); | |
133 | *vmid = vm_id; | |
134 | return ret; | |
135 | } | |
136 | ||
137 | hax_fd hax_host_open_vm(struct hax_state *hax, int vm_id) | |
138 | { | |
139 | hax_fd fd; | |
140 | char *vm_name = NULL; | |
141 | ||
142 | vm_name = hax_vm_devfs_string(vm_id); | |
143 | if (!vm_name) { | |
144 | return -1; | |
145 | } | |
146 | ||
147 | fd = open(vm_name, O_RDWR); | |
148 | g_free(vm_name); | |
149 | ||
8cf58a49 | 150 | qemu_set_cloexec(fd); |
6f805823 VP |
151 | |
152 | return fd; | |
153 | } | |
154 | ||
155 | int hax_notify_qemu_version(hax_fd vm_fd, struct hax_qemu_version *qversion) | |
156 | { | |
157 | int ret; | |
158 | ||
159 | if (hax_invalid_fd(vm_fd)) { | |
160 | return -EINVAL; | |
161 | } | |
162 | ||
163 | ret = ioctl(vm_fd, HAX_VM_IOCTL_NOTIFY_QEMU_VERSION, qversion); | |
164 | ||
165 | if (ret < 0) { | |
166 | fprintf(stderr, "Failed to notify qemu API version\n"); | |
167 | return ret; | |
168 | } | |
169 | return 0; | |
170 | } | |
171 | ||
172 | /* Simply assume the size should be bigger than the hax_tunnel, | |
173 | * since the hax_tunnel can be extended later with compatibility considered | |
174 | */ | |
175 | int hax_host_create_vcpu(hax_fd vm_fd, int vcpuid) | |
176 | { | |
177 | int ret; | |
178 | ||
179 | ret = ioctl(vm_fd, HAX_VM_IOCTL_VCPU_CREATE, &vcpuid); | |
180 | if (ret < 0) { | |
181 | fprintf(stderr, "Failed to create vcpu %x\n", vcpuid); | |
182 | } | |
183 | ||
184 | return ret; | |
185 | } | |
186 | ||
187 | hax_fd hax_host_open_vcpu(int vmid, int vcpuid) | |
188 | { | |
189 | char *devfs_path = NULL; | |
190 | hax_fd fd; | |
191 | ||
192 | devfs_path = hax_vcpu_devfs_string(vmid, vcpuid); | |
193 | if (!devfs_path) { | |
194 | fprintf(stderr, "Failed to get the devfs\n"); | |
195 | return -EINVAL; | |
196 | } | |
197 | ||
198 | fd = open(devfs_path, O_RDWR); | |
199 | g_free(devfs_path); | |
200 | if (fd < 0) { | |
201 | fprintf(stderr, "Failed to open the vcpu devfs\n"); | |
202 | } | |
8cf58a49 | 203 | qemu_set_cloexec(fd); |
6f805823 VP |
204 | return fd; |
205 | } | |
206 | ||
207 | int hax_host_setup_vcpu_channel(struct hax_vcpu_state *vcpu) | |
208 | { | |
209 | int ret; | |
210 | struct hax_tunnel_info info; | |
211 | ||
212 | ret = ioctl(vcpu->fd, HAX_VCPU_IOCTL_SETUP_TUNNEL, &info); | |
213 | if (ret) { | |
214 | fprintf(stderr, "Failed to setup the hax tunnel\n"); | |
215 | return ret; | |
216 | } | |
217 | ||
218 | if (!valid_hax_tunnel_size(info.size)) { | |
219 | fprintf(stderr, "Invalid hax tunnel size %x\n", info.size); | |
220 | ret = -EINVAL; | |
221 | return ret; | |
222 | } | |
223 | ||
224 | vcpu->tunnel = (struct hax_tunnel *) (intptr_t) (info.va); | |
225 | vcpu->iobuf = (unsigned char *) (intptr_t) (info.io_va); | |
226 | return 0; | |
227 | } | |
228 | ||
229 | int hax_vcpu_run(struct hax_vcpu_state *vcpu) | |
230 | { | |
4a4ff4c5 | 231 | return ioctl(vcpu->fd, HAX_VCPU_IOCTL_RUN, NULL); |
6f805823 VP |
232 | } |
233 | ||
234 | int hax_sync_fpu(CPUArchState *env, struct fx_layout *fl, int set) | |
235 | { | |
236 | int ret, fd; | |
237 | ||
238 | fd = hax_vcpu_get_fd(env); | |
239 | if (fd <= 0) { | |
240 | return -1; | |
241 | } | |
242 | ||
243 | if (set) { | |
244 | ret = ioctl(fd, HAX_VCPU_IOCTL_SET_FPU, fl); | |
245 | } else { | |
246 | ret = ioctl(fd, HAX_VCPU_IOCTL_GET_FPU, fl); | |
247 | } | |
248 | return ret; | |
249 | } | |
250 | ||
251 | int hax_sync_msr(CPUArchState *env, struct hax_msr_data *msrs, int set) | |
252 | { | |
253 | int ret, fd; | |
254 | ||
255 | fd = hax_vcpu_get_fd(env); | |
256 | if (fd <= 0) { | |
257 | return -1; | |
258 | } | |
259 | if (set) { | |
260 | ret = ioctl(fd, HAX_VCPU_IOCTL_SET_MSRS, msrs); | |
261 | } else { | |
262 | ret = ioctl(fd, HAX_VCPU_IOCTL_GET_MSRS, msrs); | |
263 | } | |
264 | return ret; | |
265 | } | |
266 | ||
267 | int hax_sync_vcpu_state(CPUArchState *env, struct vcpu_state_t *state, int set) | |
268 | { | |
269 | int ret, fd; | |
270 | ||
271 | fd = hax_vcpu_get_fd(env); | |
272 | if (fd <= 0) { | |
273 | return -1; | |
274 | } | |
275 | ||
276 | if (set) { | |
277 | ret = ioctl(fd, HAX_VCPU_SET_REGS, state); | |
278 | } else { | |
279 | ret = ioctl(fd, HAX_VCPU_GET_REGS, state); | |
280 | } | |
281 | return ret; | |
282 | } | |
283 | ||
284 | int hax_inject_interrupt(CPUArchState *env, int vector) | |
285 | { | |
4a4ff4c5 | 286 | int fd; |
6f805823 VP |
287 | |
288 | fd = hax_vcpu_get_fd(env); | |
289 | if (fd <= 0) { | |
290 | return -1; | |
291 | } | |
292 | ||
4a4ff4c5 | 293 | return ioctl(fd, HAX_VCPU_IOCTL_INTERRUPT, &vector); |
6f805823 | 294 | } |