virtio-scsi: suppress virtqueue kick during processing
[qemu.git] / target / arm / gdbstub64.c
1 /*
2 * ARM gdb server stub: AArch64 specific functions.
3 *
4 * Copyright (c) 2013 SUSE LINUX Products GmbH
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
18 */
19 #include "qemu/osdep.h"
20 #include "qemu-common.h"
21 #include "cpu.h"
22 #include "exec/gdbstub.h"
23
24 int aarch64_cpu_gdb_read_register(CPUState *cs, uint8_t *mem_buf, int n)
25 {
26 ARMCPU *cpu = ARM_CPU(cs);
27 CPUARMState *env = &cpu->env;
28
29 if (n < 31) {
30 /* Core integer register. */
31 return gdb_get_reg64(mem_buf, env->xregs[n]);
32 }
33 switch (n) {
34 case 31:
35 return gdb_get_reg64(mem_buf, env->xregs[31]);
36 case 32:
37 return gdb_get_reg64(mem_buf, env->pc);
38 case 33:
39 return gdb_get_reg32(mem_buf, pstate_read(env));
40 }
41 /* Unknown register. */
42 return 0;
43 }
44
45 int aarch64_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n)
46 {
47 ARMCPU *cpu = ARM_CPU(cs);
48 CPUARMState *env = &cpu->env;
49 uint64_t tmp;
50
51 tmp = ldq_p(mem_buf);
52
53 if (n < 31) {
54 /* Core integer register. */
55 env->xregs[n] = tmp;
56 return 8;
57 }
58 switch (n) {
59 case 31:
60 env->xregs[31] = tmp;
61 return 8;
62 case 32:
63 env->pc = tmp;
64 return 8;
65 case 33:
66 /* CPSR */
67 pstate_write(env, tmp);
68 return 4;
69 }
70 /* Unknown register. */
71 return 0;
72 }