target/ppc/monitor.c

   1 /*
   2  * QEMU monitor
   3  *
   4  * Copyright (c) 2003-2004 Fabrice Bellard
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a copy
   7  * of this software and associated documentation files (the "Software"), to deal
   8  * in the Software without restriction, including without limitation the rights
   9  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10  * copies of the Software, and to permit persons to whom the Software is
  11  * furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22  * THE SOFTWARE.
  23  */
  24 #include "qemu/osdep.h"
  25 #include "cpu.h"
  26 #include "monitor/monitor.h"
  27 #include "monitor/hmp-target.h"
  28 #include "hmp.h"
  29
  30 static target_long monitor_get_ccr (const struct MonitorDef *md, int val)
  31 {
  32     CPUArchState *env = mon_get_cpu_env();
  33     unsigned int u;
  34     int i;
  35
  36     u = 0;
  37     for (i = 0; i < 8; i++)
  38         u |= env->crf[i] << (32 - (4 * (i + 1)));
  39
  40     return u;
  41 }
  42
  43 static target_long monitor_get_decr (const struct MonitorDef *md, int val)
  44 {
  45     CPUArchState *env = mon_get_cpu_env();
  46     return cpu_ppc_load_decr(env);
  47 }
  48
  49 static target_long monitor_get_tbu (const struct MonitorDef *md, int val)
  50 {
  51     CPUArchState *env = mon_get_cpu_env();
  52     return cpu_ppc_load_tbu(env);
  53 }
  54
  55 static target_long monitor_get_tbl (const struct MonitorDef *md, int val)
  56 {
  57     CPUArchState *env = mon_get_cpu_env();
  58     return cpu_ppc_load_tbl(env);
  59 }
  60
  61 void hmp_info_tlb(Monitor *mon, const QDict *qdict)
  62 {
  63     CPUArchState *env1 = mon_get_cpu_env();
  64
  65     if (!env1) {
  66         monitor_printf(mon, "No CPU available\n");
  67         return;
  68     }
  69     dump_mmu((FILE*)mon, (fprintf_function)monitor_printf, env1);
  70 }
  71
  72 const MonitorDef monitor_defs[] = {
  73     { "fpscr", offsetof(CPUPPCState, fpscr) },
  74     /* Next instruction pointer */
  75     { "nip|pc", offsetof(CPUPPCState, nip) },
  76     { "lr", offsetof(CPUPPCState, lr) },
  77     { "ctr", offsetof(CPUPPCState, ctr) },
  78     { "decr", 0, &monitor_get_decr, },
  79     { "ccr|cr", 0, &monitor_get_ccr, },
  80     /* Machine state register */
  81     { "xer", offsetof(CPUPPCState, xer) },
  82     { "msr", offsetof(CPUPPCState, msr) },
  83     { "tbu", 0, &monitor_get_tbu, },
  84     { "tbl", 0, &monitor_get_tbl, },
  85     { NULL },
  86 };
  87
  88 const MonitorDef *target_monitor_defs(void)
  89 {
  90     return monitor_defs;
  91 }
  92
  93 static int ppc_cpu_get_reg_num(const char *numstr, int maxnum, int *pregnum)
  94 {
  95     int regnum;
  96     char *endptr = NULL;
  97
  98     if (!*numstr) {
  99         return false;
 100     }
 101
 102     regnum = strtoul(numstr, &endptr, 10);
 103     if (*endptr || (regnum >= maxnum)) {
 104         return false;
 105     }
 106     *pregnum = regnum;
 107
 108     return true;
 109 }
 110
 111 int target_get_monitor_def(CPUState *cs, const char *name, uint64_t *pval)
 112 {
 113     int i, regnum;
 114     PowerPCCPU *cpu = POWERPC_CPU(cs);
 115     CPUPPCState *env = &cpu->env;
 116
 117     /* General purpose registers */
 118     if ((tolower(name[0]) == 'r') &&
 119         ppc_cpu_get_reg_num(name + 1, ARRAY_SIZE(env->gpr), &regnum)) {
 120         *pval = env->gpr[regnum];
 121         return 0;
 122     }
 123
 124     /* Floating point registers */
 125     if ((tolower(name[0]) == 'f') &&
 126         ppc_cpu_get_reg_num(name + 1, ARRAY_SIZE(env->fpr), &regnum)) {
 127         *pval = env->fpr[regnum];
 128         return 0;
 129     }
 130
 131     /* Special purpose registers */
 132     for (i = 0; i < ARRAY_SIZE(env->spr_cb); ++i) {
 133         ppc_spr_t *spr = &env->spr_cb[i];
 134
 135         if (spr->name && (strcasecmp(name, spr->name) == 0)) {
 136             *pval = env->spr[i];
 137             return 0;
 138         }
 139     }
 140
 141     /* Segment registers */
 142 #if !defined(CONFIG_USER_ONLY)
 143     if ((strncasecmp(name, "sr", 2) == 0) &&
 144         ppc_cpu_get_reg_num(name + 2, ARRAY_SIZE(env->sr), &regnum)) {
 145         *pval = env->sr[regnum];
 146         return 0;
 147     }
 148 #endif
 149
 150     return -EINVAL;
 151 }