hmp: Add flag for preconfig commands
Add a flag to command definitions to allow them to be used in preconfig
and check it.
If users try to use commands that aren't available, tell them to use
the exit_preconfig comand we're adding in a few patches.
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20180620153947.30834-2-dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
diff --git a/monitor.c b/monitor.c
index 2a8187f..ff26d86 100644
--- a/monitor.c
+++ b/monitor.c
@@ -128,6 +128,7 @@
const char *args_type;
const char *params;
const char *help;
+ const char *flags; /* p=preconfig */
void (*cmd)(Monitor *mon, const QDict *qdict);
/* @sub_table is a list of 2nd level of commands. If it does not exist,
* cmd should be used. If it exists, sub_table[?].cmd should be
@@ -958,6 +959,19 @@
return -1;
}
+/*
+ * Returns true if the command can be executed in preconfig mode
+ * i.e. it has the 'p' flag.
+ */
+static bool cmd_can_preconfig(const mon_cmd_t *cmd)
+{
+ if (!cmd->flags) {
+ return false;
+ }
+
+ return strchr(cmd->flags, 'p');
+}
+
static void help_cmd_dump_one(Monitor *mon,
const mon_cmd_t *cmd,
char **prefix_args,
@@ -3041,6 +3055,12 @@
(int)(p - cmdp_start), cmdp_start);
return NULL;
}
+ if (runstate_check(RUN_STATE_PRECONFIG) && !cmd_can_preconfig(cmd)) {
+ monitor_printf(mon, "Command '%.*s' not available with -preconfig "
+ "until after exit_preconfig.\n",
+ (int)(p - cmdp_start), cmdp_start);
+ return NULL;
+ }
/* filter out following useless space */
while (qemu_isspace(*p)) {
