[Qemu-devel] Re: [PATCH] update bochs vbe interface

2010-03-25 Thread Gerd Hoffmann
On 03/25/10 13:14, Juan Quintela wrote: Gerd Hoffmann wrote: Hi, Then our big problem is migration between read of the 1st register and of the 2nd register, no? "big"? That is why I asked. I have no clue about how many times that register is read. Once at boot. If it is only read

[Qemu-devel] Re: [PATCH] update bochs vbe interface

2010-03-25 Thread Juan Quintela
Gerd Hoffmann wrote: > Hi, > >> Then our big problem is migration between read of the 1st register and >> of the 2nd register, no? > > "big"? That is why I asked. I have no clue about how many times that register is read. > The window is quite small, and I think we have a bunch of > simliar

[Qemu-devel] Re: [PATCH] update bochs vbe interface

2010-03-25 Thread Gerd Hoffmann
Hi, Then our big problem is migration between read of the 1st register and of the 2nd register, no? "big"? The window is quite small, and I think we have a bunch of simliar issues elsewhere in qemu. They are hardly avoidable for new -> old migration when adding new features to emulated d

[Qemu-devel] Re: [PATCH] update bochs vbe interface

2010-03-25 Thread Juan Quintela
Gerd Hoffmann wrote: > On 03/24/10 23:28, Juan Quintela wrote: >> Humm, I think it means. Can you migrate from a "new" vga to an old one, >> and maintain it working? > > Depends on the vgabios version. > > vgabios 0.6c will not support vesa gfx modes on older qemu, no matter > whenever you starte

[Qemu-devel] Re: [PATCH] update bochs vbe interface

2010-03-25 Thread Gerd Hoffmann
On 03/24/10 23:28, Juan Quintela wrote: Humm, I think it means. Can you migrate from a "new" vga to an old one, and maintain it working? Depends on the vgabios version. vgabios 0.6c will not support vesa gfx modes on older qemu, no matter whenever you started fresh or migrated to it. -

[Qemu-devel] Re: [PATCH] update bochs vbe interface

2010-03-24 Thread Juan Quintela
Gerd Hoffmann wrote: > On 03/24/10 18:04, Juan Quintela wrote: >> Gerd Hoffmann wrote: >>> The bochs vbe interface got a new register a while back, which specifies >>> the linear framebuffer size in 64k units. This patch adds support for >>> the new register to qemu. With this patch applied vga

[Qemu-devel] Re: [PATCH] update bochs vbe interface

2010-03-24 Thread Gerd Hoffmann
On 03/24/10 18:04, Juan Quintela wrote: Gerd Hoffmann wrote: The bochs vbe interface got a new register a while back, which specifies the linear framebuffer size in 64k units. This patch adds support for the new register to qemu. With this patch applied vgabios 0.6c works with qemu. Signed-o

[Qemu-devel] Re: [PATCH] update bochs vbe interface

2010-03-24 Thread Juan Quintela
Gerd Hoffmann wrote: > The bochs vbe interface got a new register a while back, which specifies > the linear framebuffer size in 64k units. This patch adds support for > the new register to qemu. With this patch applied vgabios 0.6c works > with qemu. > > Signed-off-by: Gerd Hoffmann It breaks