block/export: Add query-block-exports
[qemu.git] / include / hw / char / riscv_htif.h
1 /*
2 * QEMU RISCV Host Target Interface (HTIF) Emulation
3 *
4 * Copyright (c) 2016-2017 Sagar Karandikar, sagark@eecs.berkeley.edu
5 * Copyright (c) 2017-2018 SiFive, Inc.
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms and conditions of the GNU General Public License,
9 * version 2 or later, as published by the Free Software Foundation.
10 *
11 * This program is distributed in the hope it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
14 * more details.
15 *
16 * You should have received a copy of the GNU General Public License along with
17 * this program. If not, see <http://www.gnu.org/licenses/>.
18 */
19
20 #ifndef HW_RISCV_HTIF_H
21 #define HW_RISCV_HTIF_H
22
23 #include "chardev/char.h"
24 #include "chardev/char-fe.h"
25 #include "exec/memory.h"
26 #include "target/riscv/cpu.h"
27
28 #define TYPE_HTIF_UART "riscv.htif.uart"
29
30 typedef struct HTIFState {
31 int allow_tohost;
32 int fromhost_inprogress;
33
34 hwaddr tohost_offset;
35 hwaddr fromhost_offset;
36 uint64_t tohost_size;
37 uint64_t fromhost_size;
38 MemoryRegion mmio;
39 MemoryRegion *address_space;
40 MemoryRegion *main_mem;
41 void *main_mem_ram_ptr;
42
43 CPURISCVState *env;
44 CharBackend chr;
45 uint64_t pending_read;
46 } HTIFState;
47
48 extern const VMStateDescription vmstate_htif;
49 extern const MemoryRegionOps htif_io_ops;
50
51 /* HTIF symbol callback */
52 void htif_symbol_callback(const char *st_name, int st_info, uint64_t st_value,
53 uint64_t st_size);
54
55 /* legacy pre qom */
56 HTIFState *htif_mm_init(MemoryRegion *address_space, MemoryRegion *main_mem,
57 CPURISCVState *env, Chardev *chr);
58
59 #endif