4 * Copyright (c) 2011 Intel Corporation
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.
13 /* HAX module interface - darwin version */
14 #include "qemu/osdep.h"
15 #include <sys/ioctl.h>
17 #include "target/i386/hax-i386.h"
19 hax_fd hax_mod_open(void)
21 int fd = open("/dev/HAX", O_RDWR);
23 fprintf(stderr, "Failed to open the hax module\n");
26 fcntl(fd, F_SETFD, FD_CLOEXEC);
31 int hax_populate_ram(uint64_t va, uint64_t size)
35 if (!hax_global.vm || !hax_global.vm->fd) {
36 fprintf(stderr, "Allocate memory before vm create?\n");
40 if (hax_global.supports_64bit_ramblock) {
41 struct hax_ramblock_info ramblock = {
47 ret = ioctl(hax_global.vm->fd, HAX_VM_IOCTL_ADD_RAMBLOCK, &ramblock);
49 struct hax_alloc_ram_info info = {
50 .size = (uint32_t)size,
55 ret = ioctl(hax_global.vm->fd, HAX_VM_IOCTL_ALLOC_RAM, &info);
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");
66 int hax_set_ram(uint64_t start_pa, uint32_t size, uint64_t host_va, int flags)
68 struct hax_set_ram_info info;
71 info.pa_start = start_pa;
74 info.flags = (uint8_t) flags;
76 ret = ioctl(hax_global.vm->fd, HAX_VM_IOCTL_SET_RAM, &info);
83 int hax_capability(struct hax_state *hax, struct hax_capabilityinfo *cap)
87 ret = ioctl(hax->fd, HAX_IOCTL_CAPABILITY, cap);
89 fprintf(stderr, "Failed to get HAX capability\n");
96 int hax_mod_version(struct hax_state *hax, struct hax_module_version *version)
100 ret = ioctl(hax->fd, HAX_IOCTL_VERSION, version);
102 fprintf(stderr, "Failed to get HAX version\n");
109 static char *hax_vm_devfs_string(int vm_id)
111 return g_strdup_printf("/dev/hax_vm/vm%02d", vm_id);
114 static char *hax_vcpu_devfs_string(int vm_id, int vcpu_id)
116 return g_strdup_printf("/dev/hax_vm%02d/vcpu%02d", vm_id, vcpu_id);
119 int hax_host_create_vm(struct hax_state *hax, int *vmid)
124 if (hax_invalid_fd(hax->fd)) {
132 ret = ioctl(hax->fd, HAX_IOCTL_CREATE_VM, &vm_id);
137 hax_fd hax_host_open_vm(struct hax_state *hax, int vm_id)
140 char *vm_name = NULL;
142 vm_name = hax_vm_devfs_string(vm_id);
147 fd = open(vm_name, O_RDWR);
150 fcntl(fd, F_SETFD, FD_CLOEXEC);
155 int hax_notify_qemu_version(hax_fd vm_fd, struct hax_qemu_version *qversion)
159 if (hax_invalid_fd(vm_fd)) {
163 ret = ioctl(vm_fd, HAX_VM_IOCTL_NOTIFY_QEMU_VERSION, qversion);
166 fprintf(stderr, "Failed to notify qemu API version\n");
172 /* Simply assume the size should be bigger than the hax_tunnel,
173 * since the hax_tunnel can be extended later with compatibility considered
175 int hax_host_create_vcpu(hax_fd vm_fd, int vcpuid)
179 ret = ioctl(vm_fd, HAX_VM_IOCTL_VCPU_CREATE, &vcpuid);
181 fprintf(stderr, "Failed to create vcpu %x\n", vcpuid);
187 hax_fd hax_host_open_vcpu(int vmid, int vcpuid)
189 char *devfs_path = NULL;
192 devfs_path = hax_vcpu_devfs_string(vmid, vcpuid);
194 fprintf(stderr, "Failed to get the devfs\n");
198 fd = open(devfs_path, O_RDWR);
201 fprintf(stderr, "Failed to open the vcpu devfs\n");
203 fcntl(fd, F_SETFD, FD_CLOEXEC);
207 int hax_host_setup_vcpu_channel(struct hax_vcpu_state *vcpu)
210 struct hax_tunnel_info info;
212 ret = ioctl(vcpu->fd, HAX_VCPU_IOCTL_SETUP_TUNNEL, &info);
214 fprintf(stderr, "Failed to setup the hax tunnel\n");
218 if (!valid_hax_tunnel_size(info.size)) {
219 fprintf(stderr, "Invalid hax tunnel size %x\n", info.size);
224 vcpu->tunnel = (struct hax_tunnel *) (intptr_t) (info.va);
225 vcpu->iobuf = (unsigned char *) (intptr_t) (info.io_va);
229 int hax_vcpu_run(struct hax_vcpu_state *vcpu)
231 return ioctl(vcpu->fd, HAX_VCPU_IOCTL_RUN, NULL);
234 int hax_sync_fpu(CPUArchState *env, struct fx_layout *fl, int set)
238 fd = hax_vcpu_get_fd(env);
244 ret = ioctl(fd, HAX_VCPU_IOCTL_SET_FPU, fl);
246 ret = ioctl(fd, HAX_VCPU_IOCTL_GET_FPU, fl);
251 int hax_sync_msr(CPUArchState *env, struct hax_msr_data *msrs, int set)
255 fd = hax_vcpu_get_fd(env);
260 ret = ioctl(fd, HAX_VCPU_IOCTL_SET_MSRS, msrs);
262 ret = ioctl(fd, HAX_VCPU_IOCTL_GET_MSRS, msrs);
267 int hax_sync_vcpu_state(CPUArchState *env, struct vcpu_state_t *state, int set)
271 fd = hax_vcpu_get_fd(env);
277 ret = ioctl(fd, HAX_VCPU_SET_REGS, state);
279 ret = ioctl(fd, HAX_VCPU_GET_REGS, state);
284 int hax_inject_interrupt(CPUArchState *env, int vector)
288 fd = hax_vcpu_get_fd(env);
293 return ioctl(fd, HAX_VCPU_IOCTL_INTERRUPT, &vector);