1 /*
2 ** Copyright (c) 2011, Intel Corporation
3 **
4 ** This software is licensed under the terms of the GNU General Public
5 ** License version 2, as published by the Free Software Foundation, and
6 ** may be copied, distributed, and modified under those terms.
7 **
8 ** This program is distributed in the hope that it will be useful,
9 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
10 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 ** GNU General Public License for more details.
12 */
13
14 #ifndef __HAX_UNIX_H
15 #define __HAX_UNIX_H
16
17 #include <sys/types.h>
18 #include <sys/ioctl.h>
19 #include <sys/mman.h>
20 #include <stdarg.h>
21
22 #define HAX_INVALID_FD (-1)
hax_invalid_fd(hax_fd fd)23 static inline int hax_invalid_fd(hax_fd fd)
24 {
25 return fd <= 0;
26 }
27
hax_mod_close(struct hax_state * hax)28 static inline void hax_mod_close(struct hax_state *hax)
29 {
30 close(hax->fd);
31 }
32
hax_close_fd(hax_fd fd)33 static inline void hax_close_fd(hax_fd fd)
34 {
35 close(fd);
36 }
37
38 /* HAX model level ioctl */
39 /* Get API version the HAX driver supports */
40 #define HAX_IOCTL_VERSION _IOWR(0, 0x20, struct hax_module_version)
41 /* Create VM instance and return the vm_id */
42 #define HAX_IOCTL_CREATE_VM _IOWR(0, 0x21, int)
43 /* Get HAXM capability information */
44 #define HAX_IOCTL_CAPABILITY _IOR(0, 0x23, struct hax_capabilityinfo)
45
46 /* Pass down a VM_ID, create a VCPU instance for it */
47 #define HAX_VM_IOCTL_VCPU_CREATE _IOR(0, 0x80, int)
48 /*
49 * Allocate guest memory, the step of allocate guest memory is:
50 * 1. QEMU will allocate the virtual address to cover the guest memory ranges
51 * 2. QEMU passing down the virtual address and length in the
52 * HAX_VM_IOCTL_ALLOC_RAM ioctl through hax_alloc_ram_info structure
53 * 3. HAX driver populate physical memory for the virtual address range, and
54 * lock these physical memory lock, so that they will not be swapped out
55 * 4. HAX driver map the populated physical memory into kernel address space
56 */
57 #define HAX_VM_IOCTL_ALLOC_RAM _IOWR(0, 0x81, struct hax_alloc_ram_info)
58 /*
59 * Setup translation between guest physical address and host physical address
60 */
61 #define HAX_VM_IOCTL_SET_RAM _IOWR(0, 0x82, struct hax_set_ram_info)
62
63 /*
64 * QEMU notify HAXM driver of the API version currently in use, so that
65 * HAXM driver will not present features that possibly not supported
66 * by QEMU
67 */
68 #define HAX_VM_IOCTL_NOTIFY_QEMU_VERSION _IOW(0, 0x84, struct hax_qemu_version)
69
70 /* Run the guest in non-root mode */
71 #define HAX_VCPU_IOCTL_RUN _IO(0, 0xc0)
72 /* Sync QEMU's guest MSR value to HAX driver */
73 #define HAX_VCPU_IOCTL_SET_MSRS _IOWR(0, 0xc1, struct hax_msr_data)
74 /* Sync HAX driver's guest MSR value to QEMU */
75 #define HAX_VCPU_IOCTL_GET_MSRS _IOWR(0, 0xc2, struct hax_msr_data)
76 #define HAX_VCPU_IOCTL_SET_FPU _IOW(0, 0xc3, struct fx_layout)
77 #define HAX_VCPU_IOCTL_GET_FPU _IOR(0, 0xc4, struct fx_layout)
78
79 /* Setup HAX tunnel, see structure hax_tunnel comments in hax-interface.h */
80 #define HAX_VCPU_IOCTL_SETUP_TUNNEL _IOWR(0, 0xc5, struct hax_tunnel_info)
81 /* A interrupt need to be injected into guest */
82 #define HAX_VCPU_IOCTL_INTERRUPT _IOWR(0, 0xc6, uint32_t)
83 #define HAX_VCPU_SET_REGS _IOWR(0, 0xc7, struct vcpu_state_t)
84 #define HAX_VCPU_GET_REGS _IOWR(0, 0xc8, struct vcpu_state_t)
85
86 #endif /* __HAX_UNIX_H */
87