forked from mirror/qemu
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
330 lines
9.3 KiB
C
330 lines
9.3 KiB
C
/*
|
|
* s390x gdb server stub
|
|
*
|
|
* Copyright (c) 2003-2005 Fabrice Bellard
|
|
* Copyright (c) 2013 SUSE LINUX Products GmbH
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "qemu/osdep.h"
|
|
#include "cpu.h"
|
|
#include "s390x-internal.h"
|
|
#include "exec/exec-all.h"
|
|
#include "exec/gdbstub.h"
|
|
#include "qemu/bitops.h"
|
|
#include "sysemu/hw_accel.h"
|
|
#include "sysemu/tcg.h"
|
|
|
|
int s390_cpu_gdb_read_register(CPUState *cs, GByteArray *mem_buf, int n)
|
|
{
|
|
S390CPU *cpu = S390_CPU(cs);
|
|
CPUS390XState *env = &cpu->env;
|
|
|
|
switch (n) {
|
|
case S390_PSWM_REGNUM:
|
|
return gdb_get_regl(mem_buf, s390_cpu_get_psw_mask(env));
|
|
case S390_PSWA_REGNUM:
|
|
return gdb_get_regl(mem_buf, env->psw.addr);
|
|
case S390_R0_REGNUM ... S390_R15_REGNUM:
|
|
return gdb_get_regl(mem_buf, env->regs[n - S390_R0_REGNUM]);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int s390_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n)
|
|
{
|
|
S390CPU *cpu = S390_CPU(cs);
|
|
CPUS390XState *env = &cpu->env;
|
|
target_ulong tmpl = ldtul_p(mem_buf);
|
|
|
|
switch (n) {
|
|
case S390_PSWM_REGNUM:
|
|
s390_cpu_set_psw(env, tmpl, env->psw.addr);
|
|
break;
|
|
case S390_PSWA_REGNUM:
|
|
env->psw.addr = tmpl;
|
|
break;
|
|
case S390_R0_REGNUM ... S390_R15_REGNUM:
|
|
env->regs[n - S390_R0_REGNUM] = tmpl;
|
|
break;
|
|
default:
|
|
return 0;
|
|
}
|
|
return 8;
|
|
}
|
|
|
|
/* the values represent the positions in s390-acr.xml */
|
|
#define S390_A0_REGNUM 0
|
|
#define S390_A15_REGNUM 15
|
|
/* total number of registers in s390-acr.xml */
|
|
#define S390_NUM_AC_REGS 16
|
|
|
|
static int cpu_read_ac_reg(CPUS390XState *env, GByteArray *buf, int n)
|
|
{
|
|
switch (n) {
|
|
case S390_A0_REGNUM ... S390_A15_REGNUM:
|
|
return gdb_get_reg32(buf, env->aregs[n]);
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
static int cpu_write_ac_reg(CPUS390XState *env, uint8_t *mem_buf, int n)
|
|
{
|
|
switch (n) {
|
|
case S390_A0_REGNUM ... S390_A15_REGNUM:
|
|
env->aregs[n] = ldl_p(mem_buf);
|
|
cpu_synchronize_post_init(env_cpu(env));
|
|
return 4;
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
/* the values represent the positions in s390-fpr.xml */
|
|
#define S390_FPC_REGNUM 0
|
|
#define S390_F0_REGNUM 1
|
|
#define S390_F15_REGNUM 16
|
|
/* total number of registers in s390-fpr.xml */
|
|
#define S390_NUM_FP_REGS 17
|
|
|
|
static int cpu_read_fp_reg(CPUS390XState *env, GByteArray *buf, int n)
|
|
{
|
|
switch (n) {
|
|
case S390_FPC_REGNUM:
|
|
return gdb_get_reg32(buf, env->fpc);
|
|
case S390_F0_REGNUM ... S390_F15_REGNUM:
|
|
return gdb_get_reg64(buf, *get_freg(env, n - S390_F0_REGNUM));
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
static int cpu_write_fp_reg(CPUS390XState *env, uint8_t *mem_buf, int n)
|
|
{
|
|
switch (n) {
|
|
case S390_FPC_REGNUM:
|
|
env->fpc = ldl_p(mem_buf);
|
|
return 4;
|
|
case S390_F0_REGNUM ... S390_F15_REGNUM:
|
|
*get_freg(env, n - S390_F0_REGNUM) = ldtul_p(mem_buf);
|
|
return 8;
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
/* the values represent the positions in s390-vx.xml */
|
|
#define S390_V0L_REGNUM 0
|
|
#define S390_V15L_REGNUM 15
|
|
#define S390_V16_REGNUM 16
|
|
#define S390_V31_REGNUM 31
|
|
/* total number of registers in s390-vx.xml */
|
|
#define S390_NUM_VREGS 32
|
|
|
|
static int cpu_read_vreg(CPUS390XState *env, GByteArray *buf, int n)
|
|
{
|
|
int ret;
|
|
|
|
switch (n) {
|
|
case S390_V0L_REGNUM ... S390_V15L_REGNUM:
|
|
ret = gdb_get_reg64(buf, env->vregs[n][1]);
|
|
break;
|
|
case S390_V16_REGNUM ... S390_V31_REGNUM:
|
|
ret = gdb_get_reg64(buf, env->vregs[n][0]);
|
|
ret += gdb_get_reg64(buf, env->vregs[n][1]);
|
|
break;
|
|
default:
|
|
ret = 0;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int cpu_write_vreg(CPUS390XState *env, uint8_t *mem_buf, int n)
|
|
{
|
|
switch (n) {
|
|
case S390_V0L_REGNUM ... S390_V15L_REGNUM:
|
|
env->vregs[n][1] = ldtul_p(mem_buf + 8);
|
|
return 8;
|
|
case S390_V16_REGNUM ... S390_V31_REGNUM:
|
|
env->vregs[n][0] = ldtul_p(mem_buf);
|
|
env->vregs[n][1] = ldtul_p(mem_buf + 8);
|
|
return 16;
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
/* the values represent the positions in s390-cr.xml */
|
|
#define S390_C0_REGNUM 0
|
|
#define S390_C15_REGNUM 15
|
|
/* total number of registers in s390-cr.xml */
|
|
#define S390_NUM_C_REGS 16
|
|
|
|
#ifndef CONFIG_USER_ONLY
|
|
static int cpu_read_c_reg(CPUS390XState *env, GByteArray *buf, int n)
|
|
{
|
|
switch (n) {
|
|
case S390_C0_REGNUM ... S390_C15_REGNUM:
|
|
return gdb_get_regl(buf, env->cregs[n]);
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
static int cpu_write_c_reg(CPUS390XState *env, uint8_t *mem_buf, int n)
|
|
{
|
|
switch (n) {
|
|
case S390_C0_REGNUM ... S390_C15_REGNUM:
|
|
env->cregs[n] = ldtul_p(mem_buf);
|
|
if (tcg_enabled()) {
|
|
tlb_flush(env_cpu(env));
|
|
}
|
|
cpu_synchronize_post_init(env_cpu(env));
|
|
return 8;
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
/* the values represent the positions in s390-virt.xml */
|
|
#define S390_VIRT_CKC_REGNUM 0
|
|
#define S390_VIRT_CPUTM_REGNUM 1
|
|
#define S390_VIRT_BEA_REGNUM 2
|
|
#define S390_VIRT_PREFIX_REGNUM 3
|
|
#define S390_VIRT_PP_REGNUM 4
|
|
#define S390_VIRT_PFT_REGNUM 5
|
|
#define S390_VIRT_PFS_REGNUM 6
|
|
#define S390_VIRT_PFC_REGNUM 7
|
|
/* total number of registers in s390-virt.xml */
|
|
#define S390_NUM_VIRT_REGS 8
|
|
|
|
static int cpu_read_virt_reg(CPUS390XState *env, GByteArray *mem_buf, int n)
|
|
{
|
|
switch (n) {
|
|
case S390_VIRT_CKC_REGNUM:
|
|
return gdb_get_regl(mem_buf, env->ckc);
|
|
case S390_VIRT_CPUTM_REGNUM:
|
|
return gdb_get_regl(mem_buf, env->cputm);
|
|
case S390_VIRT_BEA_REGNUM:
|
|
return gdb_get_regl(mem_buf, env->gbea);
|
|
case S390_VIRT_PREFIX_REGNUM:
|
|
return gdb_get_regl(mem_buf, env->psa);
|
|
case S390_VIRT_PP_REGNUM:
|
|
return gdb_get_regl(mem_buf, env->pp);
|
|
case S390_VIRT_PFT_REGNUM:
|
|
return gdb_get_regl(mem_buf, env->pfault_token);
|
|
case S390_VIRT_PFS_REGNUM:
|
|
return gdb_get_regl(mem_buf, env->pfault_select);
|
|
case S390_VIRT_PFC_REGNUM:
|
|
return gdb_get_regl(mem_buf, env->pfault_compare);
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
static int cpu_write_virt_reg(CPUS390XState *env, uint8_t *mem_buf, int n)
|
|
{
|
|
switch (n) {
|
|
case S390_VIRT_CKC_REGNUM:
|
|
env->ckc = ldtul_p(mem_buf);
|
|
cpu_synchronize_post_init(env_cpu(env));
|
|
return 8;
|
|
case S390_VIRT_CPUTM_REGNUM:
|
|
env->cputm = ldtul_p(mem_buf);
|
|
cpu_synchronize_post_init(env_cpu(env));
|
|
return 8;
|
|
case S390_VIRT_BEA_REGNUM:
|
|
env->gbea = ldtul_p(mem_buf);
|
|
cpu_synchronize_post_init(env_cpu(env));
|
|
return 8;
|
|
case S390_VIRT_PREFIX_REGNUM:
|
|
env->psa = ldtul_p(mem_buf);
|
|
cpu_synchronize_post_init(env_cpu(env));
|
|
return 8;
|
|
case S390_VIRT_PP_REGNUM:
|
|
env->pp = ldtul_p(mem_buf);
|
|
cpu_synchronize_post_init(env_cpu(env));
|
|
return 8;
|
|
case S390_VIRT_PFT_REGNUM:
|
|
env->pfault_token = ldtul_p(mem_buf);
|
|
cpu_synchronize_post_init(env_cpu(env));
|
|
return 8;
|
|
case S390_VIRT_PFS_REGNUM:
|
|
env->pfault_select = ldtul_p(mem_buf);
|
|
cpu_synchronize_post_init(env_cpu(env));
|
|
return 8;
|
|
case S390_VIRT_PFC_REGNUM:
|
|
env->pfault_compare = ldtul_p(mem_buf);
|
|
cpu_synchronize_post_init(env_cpu(env));
|
|
return 8;
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
/* the values represent the positions in s390-gs.xml */
|
|
#define S390_GS_RESERVED_REGNUM 0
|
|
#define S390_GS_GSD_REGNUM 1
|
|
#define S390_GS_GSSM_REGNUM 2
|
|
#define S390_GS_GSEPLA_REGNUM 3
|
|
/* total number of registers in s390-gs.xml */
|
|
#define S390_NUM_GS_REGS 4
|
|
|
|
static int cpu_read_gs_reg(CPUS390XState *env, GByteArray *buf, int n)
|
|
{
|
|
return gdb_get_regl(buf, env->gscb[n]);
|
|
}
|
|
|
|
static int cpu_write_gs_reg(CPUS390XState *env, uint8_t *mem_buf, int n)
|
|
{
|
|
env->gscb[n] = ldtul_p(mem_buf);
|
|
cpu_synchronize_post_init(env_cpu(env));
|
|
return 8;
|
|
}
|
|
|
|
void s390_cpu_gdb_init(CPUState *cs)
|
|
{
|
|
gdb_register_coprocessor(cs, cpu_read_ac_reg,
|
|
cpu_write_ac_reg,
|
|
S390_NUM_AC_REGS, "s390-acr.xml", 0);
|
|
|
|
gdb_register_coprocessor(cs, cpu_read_fp_reg,
|
|
cpu_write_fp_reg,
|
|
S390_NUM_FP_REGS, "s390-fpr.xml", 0);
|
|
|
|
gdb_register_coprocessor(cs, cpu_read_vreg,
|
|
cpu_write_vreg,
|
|
S390_NUM_VREGS, "s390-vx.xml", 0);
|
|
|
|
gdb_register_coprocessor(cs, cpu_read_gs_reg,
|
|
cpu_write_gs_reg,
|
|
S390_NUM_GS_REGS, "s390-gs.xml", 0);
|
|
|
|
#ifndef CONFIG_USER_ONLY
|
|
gdb_register_coprocessor(cs, cpu_read_c_reg,
|
|
cpu_write_c_reg,
|
|
S390_NUM_C_REGS, "s390-cr.xml", 0);
|
|
|
|
if (kvm_enabled()) {
|
|
gdb_register_coprocessor(cs, cpu_read_virt_reg,
|
|
cpu_write_virt_reg,
|
|
S390_NUM_VIRT_REGS, "s390-virt.xml", 0);
|
|
}
|
|
#endif
|
|
}
|