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 2.1 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/>.
21 #include "qemu/osdep.h"
23 #include "s390x-internal.h"
24 #include "exec/exec-all.h"
25 #include "exec/gdbstub.h"
26 #include "gdbstub/helpers.h"
27 #include "qemu/bitops.h"
28 #include "sysemu/hw_accel.h"
29 #include "sysemu/tcg.h"
31 int s390_cpu_gdb_read_register(CPUState *cs, GByteArray *mem_buf, int n)
33 S390CPU *cpu = S390_CPU(cs);
34 CPUS390XState *env = &cpu->env;
37 case S390_PSWM_REGNUM:
38 return gdb_get_regl(mem_buf, s390_cpu_get_psw_mask(env));
39 case S390_PSWA_REGNUM:
40 return gdb_get_regl(mem_buf, env->psw.addr);
41 case S390_R0_REGNUM ... S390_R15_REGNUM:
42 return gdb_get_regl(mem_buf, env->regs[n - S390_R0_REGNUM]);
47 int s390_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n)
49 S390CPU *cpu = S390_CPU(cs);
50 CPUS390XState *env = &cpu->env;
51 target_ulong tmpl = ldtul_p(mem_buf);
54 case S390_PSWM_REGNUM:
55 s390_cpu_set_psw(env, tmpl, env->psw.addr);
57 case S390_PSWA_REGNUM:
60 case S390_R0_REGNUM ... S390_R15_REGNUM:
61 env->regs[n - S390_R0_REGNUM] = tmpl;
69 /* the values represent the positions in s390-acr.xml */
70 #define S390_A0_REGNUM 0
71 #define S390_A15_REGNUM 15
72 /* total number of registers in s390-acr.xml */
73 #define S390_NUM_AC_REGS 16
75 static int cpu_read_ac_reg(CPUS390XState *env, GByteArray *buf, int n)
78 case S390_A0_REGNUM ... S390_A15_REGNUM:
79 return gdb_get_reg32(buf, env->aregs[n]);
85 static int cpu_write_ac_reg(CPUS390XState *env, uint8_t *mem_buf, int n)
88 case S390_A0_REGNUM ... S390_A15_REGNUM:
89 env->aregs[n] = ldl_p(mem_buf);
90 cpu_synchronize_post_init(env_cpu(env));
97 /* the values represent the positions in s390-fpr.xml */
98 #define S390_FPC_REGNUM 0
99 #define S390_F0_REGNUM 1
100 #define S390_F15_REGNUM 16
101 /* total number of registers in s390-fpr.xml */
102 #define S390_NUM_FP_REGS 17
104 static int cpu_read_fp_reg(CPUS390XState *env, GByteArray *buf, int n)
107 case S390_FPC_REGNUM:
108 return gdb_get_reg32(buf, env->fpc);
109 case S390_F0_REGNUM ... S390_F15_REGNUM:
110 return gdb_get_reg64(buf, *get_freg(env, n - S390_F0_REGNUM));
116 static int cpu_write_fp_reg(CPUS390XState *env, uint8_t *mem_buf, int n)
119 case S390_FPC_REGNUM:
120 env->fpc = ldl_p(mem_buf);
122 case S390_F0_REGNUM ... S390_F15_REGNUM:
123 *get_freg(env, n - S390_F0_REGNUM) = ldtul_p(mem_buf);
130 /* the values represent the positions in s390-vx.xml */
131 #define S390_V0L_REGNUM 0
132 #define S390_V15L_REGNUM 15
133 #define S390_V16_REGNUM 16
134 #define S390_V31_REGNUM 31
135 /* total number of registers in s390-vx.xml */
136 #define S390_NUM_VREGS 32
138 static int cpu_read_vreg(CPUS390XState *env, GByteArray *buf, int n)
143 case S390_V0L_REGNUM ... S390_V15L_REGNUM:
144 ret = gdb_get_reg64(buf, env->vregs[n][1]);
146 case S390_V16_REGNUM ... S390_V31_REGNUM:
147 ret = gdb_get_reg64(buf, env->vregs[n][0]);
148 ret += gdb_get_reg64(buf, env->vregs[n][1]);
157 static int cpu_write_vreg(CPUS390XState *env, uint8_t *mem_buf, int n)
160 case S390_V0L_REGNUM ... S390_V15L_REGNUM:
161 env->vregs[n][1] = ldtul_p(mem_buf + 8);
163 case S390_V16_REGNUM ... S390_V31_REGNUM:
164 env->vregs[n][0] = ldtul_p(mem_buf);
165 env->vregs[n][1] = ldtul_p(mem_buf + 8);
172 /* the values represent the positions in s390-cr.xml */
173 #define S390_C0_REGNUM 0
174 #define S390_C15_REGNUM 15
175 /* total number of registers in s390-cr.xml */
176 #define S390_NUM_C_REGS 16
178 #ifndef CONFIG_USER_ONLY
179 static int cpu_read_c_reg(CPUS390XState *env, GByteArray *buf, int n)
182 case S390_C0_REGNUM ... S390_C15_REGNUM:
183 return gdb_get_regl(buf, env->cregs[n]);
189 static int cpu_write_c_reg(CPUS390XState *env, uint8_t *mem_buf, int n)
192 case S390_C0_REGNUM ... S390_C15_REGNUM:
193 env->cregs[n] = ldtul_p(mem_buf);
195 tlb_flush(env_cpu(env));
197 cpu_synchronize_post_init(env_cpu(env));
204 /* the values represent the positions in s390-virt.xml */
205 #define S390_VIRT_CKC_REGNUM 0
206 #define S390_VIRT_CPUTM_REGNUM 1
207 #define S390_VIRT_BEA_REGNUM 2
208 #define S390_VIRT_PREFIX_REGNUM 3
209 /* total number of registers in s390-virt.xml */
210 #define S390_NUM_VIRT_REGS 4
212 static int cpu_read_virt_reg(CPUS390XState *env, GByteArray *mem_buf, int n)
215 case S390_VIRT_CKC_REGNUM:
216 return gdb_get_regl(mem_buf, env->ckc);
217 case S390_VIRT_CPUTM_REGNUM:
218 return gdb_get_regl(mem_buf, env->cputm);
219 case S390_VIRT_BEA_REGNUM:
220 return gdb_get_regl(mem_buf, env->gbea);
221 case S390_VIRT_PREFIX_REGNUM:
222 return gdb_get_regl(mem_buf, env->psa);
228 static int cpu_write_virt_reg(CPUS390XState *env, uint8_t *mem_buf, int n)
231 case S390_VIRT_CKC_REGNUM:
232 env->ckc = ldtul_p(mem_buf);
233 cpu_synchronize_post_init(env_cpu(env));
235 case S390_VIRT_CPUTM_REGNUM:
236 env->cputm = ldtul_p(mem_buf);
237 cpu_synchronize_post_init(env_cpu(env));
239 case S390_VIRT_BEA_REGNUM:
240 env->gbea = ldtul_p(mem_buf);
241 cpu_synchronize_post_init(env_cpu(env));
243 case S390_VIRT_PREFIX_REGNUM:
244 env->psa = ldtul_p(mem_buf);
245 cpu_synchronize_post_init(env_cpu(env));
252 /* the values represent the positions in s390-virt-kvm.xml */
253 #define S390_VIRT_KVM_PP_REGNUM 0
254 #define S390_VIRT_KVM_PFT_REGNUM 1
255 #define S390_VIRT_KVM_PFS_REGNUM 2
256 #define S390_VIRT_KVM_PFC_REGNUM 3
257 /* total number of registers in s390-virt-kvm.xml */
258 #define S390_NUM_VIRT_KVM_REGS 4
260 static int cpu_read_virt_kvm_reg(CPUS390XState *env, GByteArray *mem_buf, int n)
263 case S390_VIRT_KVM_PP_REGNUM:
264 return gdb_get_regl(mem_buf, env->pp);
265 case S390_VIRT_KVM_PFT_REGNUM:
266 return gdb_get_regl(mem_buf, env->pfault_token);
267 case S390_VIRT_KVM_PFS_REGNUM:
268 return gdb_get_regl(mem_buf, env->pfault_select);
269 case S390_VIRT_KVM_PFC_REGNUM:
270 return gdb_get_regl(mem_buf, env->pfault_compare);
276 static int cpu_write_virt_kvm_reg(CPUS390XState *env, uint8_t *mem_buf, int n)
279 case S390_VIRT_KVM_PP_REGNUM:
280 env->pp = ldtul_p(mem_buf);
281 cpu_synchronize_post_init(env_cpu(env));
283 case S390_VIRT_KVM_PFT_REGNUM:
284 env->pfault_token = ldtul_p(mem_buf);
285 cpu_synchronize_post_init(env_cpu(env));
287 case S390_VIRT_KVM_PFS_REGNUM:
288 env->pfault_select = ldtul_p(mem_buf);
289 cpu_synchronize_post_init(env_cpu(env));
291 case S390_VIRT_KVM_PFC_REGNUM:
292 env->pfault_compare = ldtul_p(mem_buf);
293 cpu_synchronize_post_init(env_cpu(env));
301 /* the values represent the positions in s390-gs.xml */
302 #define S390_GS_RESERVED_REGNUM 0
303 #define S390_GS_GSD_REGNUM 1
304 #define S390_GS_GSSM_REGNUM 2
305 #define S390_GS_GSEPLA_REGNUM 3
306 /* total number of registers in s390-gs.xml */
307 #define S390_NUM_GS_REGS 4
309 static int cpu_read_gs_reg(CPUS390XState *env, GByteArray *buf, int n)
311 return gdb_get_regl(buf, env->gscb[n]);
314 static int cpu_write_gs_reg(CPUS390XState *env, uint8_t *mem_buf, int n)
316 env->gscb[n] = ldtul_p(mem_buf);
317 cpu_synchronize_post_init(env_cpu(env));
321 void s390_cpu_gdb_init(CPUState *cs)
323 gdb_register_coprocessor(cs, cpu_read_ac_reg,
325 S390_NUM_AC_REGS, "s390-acr.xml", 0);
327 gdb_register_coprocessor(cs, cpu_read_fp_reg,
329 S390_NUM_FP_REGS, "s390-fpr.xml", 0);
331 gdb_register_coprocessor(cs, cpu_read_vreg,
333 S390_NUM_VREGS, "s390-vx.xml", 0);
335 gdb_register_coprocessor(cs, cpu_read_gs_reg,
337 S390_NUM_GS_REGS, "s390-gs.xml", 0);
339 #ifndef CONFIG_USER_ONLY
340 gdb_register_coprocessor(cs, cpu_read_c_reg,
342 S390_NUM_C_REGS, "s390-cr.xml", 0);
344 gdb_register_coprocessor(cs, cpu_read_virt_reg,
346 S390_NUM_VIRT_REGS, "s390-virt.xml", 0);
349 gdb_register_coprocessor(cs, cpu_read_virt_kvm_reg,
350 cpu_write_virt_kvm_reg,
351 S390_NUM_VIRT_KVM_REGS, "s390-virt-kvm.xml",