Re: [PATCH] virtio: Define and use per-architecture "pfn shift" constants

Hollis Blanchard <[email protected]>
Newsgroups org.kernel.vger.kvm-ia64,org.kernel.vger.kvm,org.kernel.vger.kvm-ppc
Message-ID <[email protected]> 
On Wednesday 05 November 2008 22:49:42 Hollis Blanchard wrote:
> virtio: Define and use per-architecture "pfn shift" constants
> 
> Both sides of the virtio interface must agree about how big a pfn really is.
> This is particularly an issue on architectures where the page size is
> configurable (e.g. PowerPC, IA64) -- the interface must be independent of
> PAGE_SHIFT.

I forgot to mention that with this patch and the corresponding qemu patch, I 
can successfully use virtio with qemu TARGET_PAGE_BITS and Linux 
PAGE_SHIFT. (OK, actually I have other problems once I get to userspace, 
but I don't believe it's a virtio issue.)

-- 
Hollis Blanchard
IBM Linux Technology Center
lmpx.com only provides a reader for public news (NNTP) servers. It is not affiliated with the servers or forums shown here and is not responsible for the content of articles, which is written by their respective authors.