Hi, >>> We really should view RAM as just another device so I don't like the >>> idea of >>> propagating a global concept of "when RAM is restored" because that >>> treats it >>> specially compared to other devices. >>> >>> But viewing RAM as just another device, having Xen only restore a >>> subset of >>> devices should be a reasonable thing to do moving forward.
I don't think modeling device memory (i.e. vga vram) as something independent from the device (vga) is a good idea. Because it isn't. >> To my understanding, QXL will break identically on Xen for the same >> reason: the reset handler assumes it can deal with the VRAM as it likes. Yes. Some data structures for host <-> guest communication are living in device memory, and a reset initializes these. > QXL also has a VGA BIOS that it could use to initialize VRAM. A similar > change could be made for it. Hmm. Not sure this is a good idea. cheers, Gerd
