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Re: [Qemu-devel] [PATCH] Add -display option
From: |
Daniel P. Berrange |
Subject: |
Re: [Qemu-devel] [PATCH] Add -display option |
Date: |
Mon, 21 Apr 2008 00:14:18 +0100 |
User-agent: |
Mutt/1.4.1i |
On Sun, Apr 20, 2008 at 05:01:27PM -0500, Anthony Liguori wrote:
> Sebastian Herbszt wrote:
> >>I would better name it -display, as not all computers have
> >>VGA-compatible cards.
> >+ break;
> >+ case QEMU_OPTION_display:
> >+ if (!strcmp(optarg, "cirrus")) {
> >+ cirrus_vga_enabled = 1;
> >+ vmsvga_enabled = 0;
> >+ } else if (!strcmp(optarg, "std")) {
> >+ cirrus_vga_enabled = 0;
> >+ vmsvga_enabled = 0;
> >+ } else if (!strcmp(optarg, "vmware")) {
> >+ cirrus_vga_enabled = 0;
> >+ vmsvga_enabled = 1;
> >+ } else if (!strcmp(optarg, "none")) {
> >+ serial_devices[0] = "stdio";
> >+ parallel_devices[0] = "null";
> >+ monitor_device = "stdio";
> >+ nographic = 1;
>
> I don't think -display none should be a synonym for -nographic. It
> should just suppress the creation of a VGA device. If a platform
> doesn't support that, it should raise an error.
I agree - its rather unfortunate that -nographic changes the default
settings for serial / parallel devices - it makes it troublesome to
launch QEMU with a predictable config. Having 'none' merely supress
the VGA device would be preferrable behaviour.
It is certainly nice from a libvirt point of view to have a generic
flag -display like this.
Dan.
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