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qemu
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Introduce a default qmp session 

Basically, -qmp unix:%{home}/.qemu/qmp/%{uuid}.sock,server,nowait

%{uuid} will be -uuid if it's specified, otherwise, if libuuid is available,
we generate a uuid.  If it's not available, we don't create one.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Anthony Liguori 2010-03-17 17:37:03 -05:00
parent d49f626ed0
commit 3290c4aac5
1 changed files with 52 additions and 0 deletions
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52
vl.c
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@ -93,6 +93,10 @@ extern int madvise(caddr_t, size_t, int);
#include <libvdeplug.h>
#endif
#if defined(CONFIG_UUID)
#include <uuid/uuid.h>
#endif
#ifdef _WIN32
#include <windows.h>
#endif
@ -3733,6 +3737,51 @@ static const QEMUOption *lookup_opt(int argc, char **argv,
return popt;
}
static void qmp_add_default(void)
{
char buffer[4096];
const char *home;
static uint8_t null_uuid[16];
uint8_t uuid[16];
home = getenv("HOME");
if (!home) {
return;
}
if (memcmp(qemu_uuid, null_uuid, sizeof(null_uuid)) == 0) {
#if defined(CONFIG_UUID)
uuid_generate(uuid);
#else
return;
#endif
} else {
memcpy(uuid, qemu_uuid, sizeof(qemu_uuid));
}
snprintf(buffer, sizeof(buffer), "%s/.qemu", home);
if (mkdir(buffer, 0755) == -1 && errno != EEXIST) {
fprintf(stderr, "could not open default QMP port\n");
return;
}
snprintf(buffer, sizeof(buffer), "%s/.qemu/qmp", home);
if (mkdir(buffer, 0755) == -1 && errno != EEXIST) {
fprintf(stderr, "could not open default QMP port\n");
return;
}
snprintf(buffer, sizeof(buffer),
"unix:%s/.qemu/qmp/" UUID_FMT ".sock,server,nowait",
home,
uuid[0], uuid[1], uuid[2], uuid[3],
uuid[4], uuid[5], uuid[6], uuid[7],
uuid[8], uuid[9], uuid[10], uuid[11],
uuid[12], uuid[13], uuid[14], uuid[15]);
monitor_parse(buffer, "control");
}
int main(int argc, char **argv, char **envp)
{
const char *gdbstub_dev = NULL;
@ -4659,6 +4708,9 @@ int main(int argc, char **argv, char **envp)
if (default_virtcon)
add_device_config(DEV_VIRTCON, "vc:80Cx24C");
}
if (default_qmp) {
qmp_add_default();
}
if (default_vga)
vga_interface_type = VGA_CIRRUS;