dump/dump-hmp-cmds.c

   1 /*
   2  * Windows crashdump (Human Monitor Interface commands)
   3  *
   4  * This work is licensed under the terms of the GNU GPL, version 2 or later.
   5  * See the COPYING file in the top-level directory.
   6  */
   7
   8 #include "qemu/osdep.h"
   9 #include "monitor/hmp.h"
  10 #include "monitor/monitor.h"
  11 #include "qapi/error.h"
  12 #include "qapi/qapi-commands-dump.h"
  13 #include "qapi/qmp/qdict.h"
  14
  15 void hmp_dump_guest_memory(Monitor *mon, const QDict *qdict)
  16 {
  17     Error *err = NULL;
  18     bool win_dmp = qdict_get_try_bool(qdict, "windmp", false);
  19     bool paging = qdict_get_try_bool(qdict, "paging", false);
  20     bool zlib = qdict_get_try_bool(qdict, "zlib", false);
  21     bool lzo = qdict_get_try_bool(qdict, "lzo", false);
  22     bool raw = qdict_get_try_bool(qdict, "raw", false);
  23     bool snappy = qdict_get_try_bool(qdict, "snappy", false);
  24     const char *file = qdict_get_str(qdict, "filename");
  25     bool has_begin = qdict_haskey(qdict, "begin");
  26     bool has_length = qdict_haskey(qdict, "length");
  27     bool has_detach = qdict_haskey(qdict, "detach");
  28     int64_t begin = 0;
  29     int64_t length = 0;
  30     bool detach = false;
  31     enum DumpGuestMemoryFormat dump_format = DUMP_GUEST_MEMORY_FORMAT_ELF;
  32     char *prot;
  33
  34     if (zlib + lzo + snappy + win_dmp > 1) {
  35         error_setg(&err, "only one of '-z|-l|-s|-w' can be set");
  36         hmp_handle_error(mon, err);
  37         return;
  38     }
  39
  40     if (win_dmp) {
  41         dump_format = DUMP_GUEST_MEMORY_FORMAT_WIN_DMP;
  42     }
  43
  44     if (zlib && raw) {
  45         if (raw) {
  46             dump_format = DUMP_GUEST_MEMORY_FORMAT_KDUMP_RAW_ZLIB;
  47         } else {
  48             dump_format = DUMP_GUEST_MEMORY_FORMAT_KDUMP_ZLIB;
  49         }
  50     }
  51
  52     if (lzo) {
  53         if (raw) {
  54             dump_format = DUMP_GUEST_MEMORY_FORMAT_KDUMP_RAW_LZO;
  55         } else {
  56             dump_format = DUMP_GUEST_MEMORY_FORMAT_KDUMP_LZO;
  57         }
  58     }
  59
  60     if (snappy) {
  61         if (raw) {
  62             dump_format = DUMP_GUEST_MEMORY_FORMAT_KDUMP_RAW_SNAPPY;
  63         } else {
  64             dump_format = DUMP_GUEST_MEMORY_FORMAT_KDUMP_SNAPPY;
  65         }
  66     }
  67
  68     if (has_begin) {
  69         begin = qdict_get_int(qdict, "begin");
  70     }
  71     if (has_length) {
  72         length = qdict_get_int(qdict, "length");
  73     }
  74     if (has_detach) {
  75         detach = qdict_get_bool(qdict, "detach");
  76     }
  77
  78     prot = g_strconcat("file:", file, NULL);
  79
  80     qmp_dump_guest_memory(paging, prot, true, detach, has_begin, begin,
  81                           has_length, length, true, dump_format, &err);
  82     hmp_handle_error(mon, err);
  83     g_free(prot);
  84 }
  85
  86 void hmp_info_dump(Monitor *mon, const QDict *qdict)
  87 {
  88     DumpQueryResult *result = qmp_query_dump(NULL);
  89
  90     assert(result && result->status < DUMP_STATUS__MAX);
  91     monitor_printf(mon, "Status: %s\n", DumpStatus_str(result->status));
  92
  93     if (result->status == DUMP_STATUS_ACTIVE) {
  94         float percent = 0;
  95         assert(result->total != 0);
  96         percent = 100.0 * result->completed / result->total;
  97         monitor_printf(mon, "Finished: %.2f %%\n", percent);
  98     }
  99
 100     qapi_free_DumpQueryResult(result);
 101 }