ide: only constrain read/write requests to drive size, not other types
[qemu/ar7.git] / target-s390x / gdbstub.c
bloba129742e2fcc78d74aa2da73c2237057bf369fc3
1 /*
2 * s390x gdb server stub
4 * Copyright (c) 2003-2005 Fabrice Bellard
5 * Copyright (c) 2013 SUSE LINUX Products GmbH
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
20 #include "config.h"
21 #include "qemu-common.h"
22 #include "exec/gdbstub.h"
23 #include "qemu/bitops.h"
25 int s390_cpu_gdb_read_register(CPUState *cs, uint8_t *mem_buf, int n)
27 S390CPU *cpu = S390_CPU(cs);
28 CPUS390XState *env = &cpu->env;
29 uint64_t val;
30 int cc_op;
32 switch (n) {
33 case S390_PSWM_REGNUM:
34 cc_op = calc_cc(env, env->cc_op, env->cc_src, env->cc_dst, env->cc_vr);
35 val = deposit64(env->psw.mask, 44, 2, cc_op);
36 return gdb_get_regl(mem_buf, val);
37 case S390_PSWA_REGNUM:
38 return gdb_get_regl(mem_buf, env->psw.addr);
39 case S390_R0_REGNUM ... S390_R15_REGNUM:
40 return gdb_get_regl(mem_buf, env->regs[n-S390_R0_REGNUM]);
41 case S390_A0_REGNUM ... S390_A15_REGNUM:
42 return gdb_get_reg32(mem_buf, env->aregs[n-S390_A0_REGNUM]);
43 case S390_FPC_REGNUM:
44 return gdb_get_reg32(mem_buf, env->fpc);
45 case S390_F0_REGNUM ... S390_F15_REGNUM:
46 return gdb_get_reg64(mem_buf, env->fregs[n-S390_F0_REGNUM].ll);
49 return 0;
52 int s390_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n)
54 S390CPU *cpu = S390_CPU(cs);
55 CPUS390XState *env = &cpu->env;
56 target_ulong tmpl;
57 uint32_t tmp32;
58 int r = 8;
59 tmpl = ldtul_p(mem_buf);
60 tmp32 = ldl_p(mem_buf);
62 switch (n) {
63 case S390_PSWM_REGNUM:
64 env->psw.mask = tmpl;
65 env->cc_op = extract64(tmpl, 44, 2);
66 break;
67 case S390_PSWA_REGNUM:
68 env->psw.addr = tmpl;
69 break;
70 case S390_R0_REGNUM ... S390_R15_REGNUM:
71 env->regs[n-S390_R0_REGNUM] = tmpl;
72 break;
73 case S390_A0_REGNUM ... S390_A15_REGNUM:
74 env->aregs[n-S390_A0_REGNUM] = tmp32;
75 r = 4;
76 break;
77 case S390_FPC_REGNUM:
78 env->fpc = tmp32;
79 r = 4;
80 break;
81 case S390_F0_REGNUM ... S390_F15_REGNUM:
82 env->fregs[n-S390_F0_REGNUM].ll = tmpl;
83 break;
84 default:
85 return 0;
87 return r;