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[Qemu-devel] Re: [PATCHv2-repost] pcbios: enable io/memory unconditional
[Qemu-devel] Re: [PATCHv2-repost] pcbios: enable io/memory unconditionally
Mon, 30 Nov 2009 10:00:23 -0600
Thunderbird 18.104.22.168 (X11/20090825)
Michael S. Tsirkin wrote:
On Thu, Oct 08, 2009 at 05:52:56PM +0200, Michael S. Tsirkin wrote:
VGA adapters need to claim memory and i/o
transactions even if they do not have any
i/o or memory bars. E.g. PCI spec, page 297,
gives an example of such a device:
Programming interface 0000 0000b
VGA-compatible controller. Memory
addresses 0A 0000h through 0B
FFFFh. I/O addresses 3B0h to 3BBh
and 3C0h to 3DFh and all aliases of
While we could check for these devices and special-case them, it is
easier to fix this by enabling i/o and memory space unconditionally:
devices that do not support it will just ignore this setting.
Signed-off-by: Michael S. Tsirkin <address@hidden>
This is for stable?
This patch is needed for qemu-kvm as that is still using pcbios.
Why hasn't qemu-kvm switched to seabios?