[PATCH 0/4] MSI-X Enabling

Sheng Yang
2008-12-23T08:12:56Z

Hi Avi

This patchset would enable MSI-X support.

The main change is a new kind of fake device - intercepted MMIO device is
added for supporting to intercept one page contained MSI-X entries table.

I also consider of doing this intercept in userspace. But I think it's would
be more complex to push it in userspace, for we also have to prevent KVM from
creating page table for the page. And in the future, we would add hook
function in the read/write operation to enabling mask bit for each MSI-X
entry, may be with pending bits. So I decided to put it in the kernel.

Another thing is I am not very confident about modify the position of handling
guest memory and MMIO in emulate read/write function. Is it would cause any
side affect?

Thanks!
--
regards
Yang, Sheng