On Tue, Jan 13, 2015 at 05:54:46PM +0200, Michael S. Tsirkin wrote:
I think we already do this for PC:
commit 83d08f2673504a299194dcac1657a13754b5932a
Author: Michael S. Tsirkin <address@hidden>
Date: Tue Oct 29 13:57:34 2013 +0100
pc: map PCI address space as catchall region for not mapped
addresses
but we need to find and fix all other targets.
BTW this is very easy to test.
Add an unused device (like ivshmem) enable BAR, and set it to 0.
System should survive, as opposed to hanging.
But the big question is whether this is the right
thing to do for each platform.
For PIIX whatever is not system memory, is PCI.
But other boxes might have a different view of the matter.