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vga: disable default VGA if appropriate -device is used

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This is a partial revert of commits a369da5 (vga: improve VGA logic,
committed 2012-01-22) and c5bd4f3 (vga: fix -nodefaults -device VGA,
2012-01-24) which broke command-line option parsing in different ways.

Since commit a369da5 it has become impossible to specify a VGA device
entirely with QemuOpts-enabled options, i.e. without needing an explicit
"-vga none".

In addition, until commit c5bd4f3 -nodefaults would not disable the device
you specified with the legacy "-vga" option, independent of the order.
Since commit c5bd4f3 QEMU -nodefaults will override a previous -vga
option.

I did not reintroduce machine->no_vga.  Boards can simply ignore the
vga_interface_type variable, and most will indeed do so.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This commit is contained in:
Paolo Bonzini 2012-05-10 09:39:17 +02:00 committed by Blue Swirl
parent 56eb21e158
commit 7f1b17f297
1 changed files with 14 additions and 9 deletions
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23
vl.c
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@ -273,6 +273,7 @@ static int default_monitor = 1;
static int default_floppy = 1;
static int default_cdrom = 1;
static int default_sdcard = 1;
static int default_vga = 1;
static struct {
const char *driver;
@ -288,6 +289,12 @@ static struct {
{ .driver = "virtio-serial-pci", .flag = &default_virtcon },
{ .driver = "virtio-serial-s390", .flag = &default_virtcon },
{ .driver = "virtio-serial", .flag = &default_virtcon },
{ .driver = "VGA", .flag = &default_vga },
{ .driver = "isa-vga", .flag = &default_vga },
{ .driver = "cirrus-vga", .flag = &default_vga },
{ .driver = "isa-cirrus-vga", .flag = &default_vga },
{ .driver = "vmware-svga", .flag = &default_vga },
{ .driver = "qxl-vga", .flag = &default_vga },
};
static void res_free(void)
@ -2277,7 +2284,7 @@ int main(int argc, char **argv, char **envp)
const char *loadvm = NULL;
QEMUMachine *machine;
const char *cpu_model;
const char *vga_model = NULL;
const char *vga_model = "none";
const char *pid_file = NULL;
const char *incoming = NULL;
#ifdef CONFIG_VNC
@ -2709,6 +2716,7 @@ int main(int argc, char **argv, char **envp)
break;
case QEMU_OPTION_vga:
vga_model = optarg;
default_vga = 0;
break;
case QEMU_OPTION_g:
{
@ -3118,7 +3126,7 @@ int main(int argc, char **argv, char **envp)
default_floppy = 0;
default_cdrom = 0;
default_sdcard = 0;
vga_model = "none";
default_vga = 0;
break;
case QEMU_OPTION_xen_domid:
if (!(xen_available())) {
@ -3488,14 +3496,11 @@ int main(int argc, char **argv, char **envp)
if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
exit(1);
/* must be after qdev registration but before machine init */
if (vga_model) {
select_vgahw(vga_model);
} else if (cirrus_vga_available()) {
select_vgahw("cirrus");
} else {
select_vgahw("none");
/* If no default VGA is requested, the default is "none". */
if (default_vga && cirrus_vga_available()) {
vga_model = "cirrus";
}
select_vgahw(vga_model);
if (qemu_opts_foreach(qemu_find_opts("device"), device_help_func, NULL, 0) != 0)
exit(0);