Am 09.04.19 um 10:29 schrieb kra...@redhat.com:
Hi,
The qemu stdvga (bochs driver) has 16 MB vram by default and can be
configured to have up to 256 MB. Plenty of room even for multiple 4k
framebuffers if needed. So for the bochs driver all the ttm bo
migration logic is not needed, it could just store everything in vram.
To clarify I assume you mean it doesn't need the migrate each bo
logic, but it still needs the when VRAM fills up migrate stuff logic.
I think even the "when vram fills up" logic isn't that important. The
driver has no acceleration so there is nothing to store beside dumb
framebuffers, and the vram size can easily be increased if needed.
Yeah, cause in this particular case it is not even real VRAM.
In this case VRAM is backed by system memory which in turn is stolen
from the host system isn't it?
So just have enough for a framebuffer and don't place anything else in
there.
Regards,
Christian.
cheers,
Gerd
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