刘晓建 wrote: > 2008-12-16，"Han, Weidong" <[email protected]> wrote： >> Pls note that multiple devices may share one page for their MMIO, >> and they may be assigned to different guests, there is potential >> isolation issue. So we don't allow to assign these devices. > > In my view, we can modify the get_real_device() to open the file > /proc/iomem to find out whether the "potential issue" is a real one, > instead of disabling this feature all the times. > > Xiaojian Liu
As I know, there are few devices that have unpage-aligned mmio, and they are almost legacy. What's more, it's a little weird to map unpage-aligned memory slot, though I don't know what's problem on it. In short, I don't perfer to assign these devices. Regards, Weidong
