LXR qemu/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
  30static 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
  43static 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
  49static 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
  55static 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
  61void hmp_info_tlb(Monitor *mon, const QDict *qdict)
  62{
  63    CPUArchState *env1 = mon_get_cpu_env();
  64
  65    dump_mmu((FILE*)mon, (fprintf_function)monitor_printf, env1);
  66}
  67
  68const MonitorDef monitor_defs[] = {
  69    { "fpscr", offsetof(CPUPPCState, fpscr) },
  70    /* Next instruction pointer */
  71    { "nip|pc", offsetof(CPUPPCState, nip) },
  72    { "lr", offsetof(CPUPPCState, lr) },
  73    { "ctr", offsetof(CPUPPCState, ctr) },
  74    { "decr", 0, &monitor_get_decr, },
  75    { "ccr|cr", 0, &monitor_get_ccr, },
  76    /* Machine state register */
  77    { "xer", offsetof(CPUPPCState, xer) },
  78    { "msr", offsetof(CPUPPCState, msr) },
  79    { "tbu", 0, &monitor_get_tbu, },
  80    { "tbl", 0, &monitor_get_tbl, },
  81    { NULL },
  82};
  83
  84const MonitorDef *target_monitor_defs(void)
  85{
  86    return monitor_defs;
  87}
  88
  89static int ppc_cpu_get_reg_num(const char *numstr, int maxnum, int *pregnum)
  90{
  91    int regnum;
  92    char *endptr = NULL;
  93
  94    if (!*numstr) {
  95        return false;
  96    }
  97
  98    regnum = strtoul(numstr, &endptr, 10);
  99    if (*endptr || (regnum >= maxnum)) {
 100        return false;
 101    }
 102    *pregnum = regnum;
 103
 104    return true;
 105}
 106
 107int target_get_monitor_def(CPUState *cs, const char *name, uint64_t *pval)
 108{
 109    int i, regnum;
 110    PowerPCCPU *cpu = POWERPC_CPU(cs);
 111    CPUPPCState *env = &cpu->env;
 112
 113    /* General purpose registers */
 114    if ((tolower(name[0]) == 'r') &&
 115        ppc_cpu_get_reg_num(name + 1, ARRAY_SIZE(env->gpr), &regnum)) {
 116        *pval = env->gpr[regnum];
 117        return 0;
 118    }
 119
 120    /* Floating point registers */
 121    if ((tolower(name[0]) == 'f') &&
 122        ppc_cpu_get_reg_num(name + 1, ARRAY_SIZE(env->fpr), &regnum)) {
 123        *pval = env->fpr[regnum];
 124        return 0;
 125    }
 126
 127    /* Special purpose registers */
 128    for (i = 0; i < ARRAY_SIZE(env->spr_cb); ++i) {
 129        ppc_spr_t *spr = &env->spr_cb[i];
 130
 131        if (spr->name && (strcasecmp(name, spr->name) == 0)) {
 132            *pval = env->spr[i];
 133            return 0;
 134        }
 135    }
 136
 137    /* Segment registers */
 138#if !defined(CONFIG_USER_ONLY)
 139    if ((strncasecmp(name, "sr", 2) == 0) &&
 140        ppc_cpu_get_reg_num(name + 2, ARRAY_SIZE(env->sr), &regnum)) {
 141        *pval = env->sr[regnum];
 142        return 0;
 143    }
 144#endif
 145
 146    return -EINVAL;
 147}
 148