Re: [Qemu-devel] [RFC] reduce reported VGA framebuffer to 8 MiB

2011-05-26 Thread Gerd Hoffmann
On 05/25/11 16:33, Alon Levy wrote: On Wed, May 25, 2011 at 04:06:03PM +0200, Gerd Hoffmann wrote: On 05/25/11 15:53, Alon Levy wrote: Without this windows xp guests set a 4 bits per pixel graphics mode. Hmm? Never seen this. Details please. When I start a windows xp guest with -vga qxl

Re: [Qemu-devel] [RFC] reduce reported VGA framebuffer to 8 MiB

2011-05-26 Thread Alon Levy
On Thu, May 26, 2011 at 08:50:01AM +0200, Gerd Hoffmann wrote: On 05/25/11 16:33, Alon Levy wrote: On Wed, May 25, 2011 at 04:06:03PM +0200, Gerd Hoffmann wrote: On 05/25/11 15:53, Alon Levy wrote: Without this windows xp guests set a 4 bits per pixel graphics mode. Hmm? Never seen this.

Re: [Qemu-devel] [RFC] reduce reported VGA framebuffer to 8 MiB

2011-05-26 Thread Gerd Hoffmann
Hi, Which qemu version? Which seabios vgabios version? qemu is the spice v36 branch with some unrelated patches. seabios + vgabios upstream (seabios with 0x900 size hack). I can retest with qemu upstream. Hmm, same here. Windows xp booting in 4bit usually indicates VBE doesn't

Re: [Qemu-devel] [RFC] reduce reported VGA framebuffer to 8 MiB

2011-05-26 Thread Alon Levy
On Thu, May 26, 2011 at 09:44:38AM +0200, Gerd Hoffmann wrote: Hi, Which qemu version? Which seabios vgabios version? qemu is the spice v36 branch with some unrelated patches. seabios + vgabios upstream (seabios with 0x900 size hack). I can retest with qemu upstream. Hmm,

Re: [Qemu-devel] [RFC] reduce reported VGA framebuffer to 8 MiB

2011-05-25 Thread Alon Levy
On Wed, May 25, 2011 at 04:06:03PM +0200, Gerd Hoffmann wrote: On 05/25/11 15:53, Alon Levy wrote: Without this windows xp guests set a 4 bits per pixel graphics mode. Hmm? Never seen this. Details please. When I start a windows xp guest with -vga qxl and no qxl driver installed I get a 16

[Qemu-devel] [RFC] reduce reported VGA framebuffer to 8 MiB

2011-05-25 Thread Alon Levy
Without this windows xp guests set a 4 bits per pixel graphics mode. With it we get the same behavior as with -vga std, that is a 32 bpp graphics mode. This fits the size reported by hw/vga-pci.c . --- Sending as RFC since I'm not sure if this is the right thing, nor that it doesn't actually

Re: [Qemu-devel] [RFC] reduce reported VGA framebuffer to 8 MiB

2011-05-25 Thread Alon Levy
On Wed, May 25, 2011 at 05:33:59PM +0300, Alon Levy wrote: On Wed, May 25, 2011 at 04:06:03PM +0200, Gerd Hoffmann wrote: On 05/25/11 15:53, Alon Levy wrote: Without this windows xp guests set a 4 bits per pixel graphics mode. Hmm? Never seen this. Details please. When I start a

Re: [Qemu-devel] [RFC] reduce reported VGA framebuffer to 8 MiB

2011-05-25 Thread Gerd Hoffmann
On 05/25/11 15:53, Alon Levy wrote: Without this windows xp guests set a 4 bits per pixel graphics mode. Hmm? Never seen this. Details please. cheers, Gerd