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QMP: Introduce Human Monitor passthrough command

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This command allows QMP clients to execute HMP commands.

Please, check the documentation added to the qmp-commands.hx file
for additional details about the interface and its limitations.

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
This commit is contained in:
Luiz Capitulino 2010-10-22 10:08:02 -02:00
parent 999bd67c87
commit 0268d97c51
2 changed files with 83 additions and 0 deletions
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38
monitor.c
View file

@ -491,6 +491,44 @@ static int do_qmp_capabilities(Monitor *mon, const QDict *params,
return 0;
}
static int mon_set_cpu(int cpu_index);
static void handle_user_command(Monitor *mon, const char *cmdline);
static int do_hmp_passthrough(Monitor *mon, const QDict *params,
QObject **ret_data)
{
int ret = 0;
Monitor *old_mon, hmp;
CharDriverState mchar;
memset(&hmp, 0, sizeof(hmp));
qemu_chr_init_mem(&mchar);
hmp.chr = &mchar;
old_mon = cur_mon;
cur_mon = &hmp;
if (qdict_haskey(params, "cpu-index")) {
ret = mon_set_cpu(qdict_get_int(params, "cpu-index"));
if (ret < 0) {
cur_mon = old_mon;
qerror_report(QERR_INVALID_PARAMETER_VALUE, "cpu-index", "a CPU number");
goto out;
}
}
handle_user_command(&hmp, qdict_get_str(params, "command-line"));
cur_mon = old_mon;
if (qemu_chr_mem_osize(hmp.chr) > 0) {
*ret_data = QOBJECT(qemu_chr_mem_to_qs(hmp.chr));
}
out:
qemu_chr_close_mem(hmp.chr);
return ret;
}
static int compare_cmd(const char *name, const char *list)
{
const char *p, *pstart;