From: Hollis Blanchard <hollisb@us.ibm.com>
To: kvm-ia64@vger.kernel.org
Subject: Re: [PATCH] virtio: Define and use per-architecture "pfn shift" constants
Date: Thu, 06 Nov 2008 04:54:04 +0000 [thread overview]
Message-ID: <200811052254.04409.hollisb@us.ibm.com> (raw)
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\x12 and Linux
PAGE_SHIFT\x16. (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
next reply other threads:[~2008-11-06 4:54 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-11-06 4:54 Hollis Blanchard [this message]
2008-11-06 10:49 ` [PATCH] virtio: Define and use per-architecture "pfn shift" Mark McLoughlin
2008-11-06 13:59 ` [PATCH] virtio: Define and use per-architecture "pfn shift" constants Anthony Liguori
2008-11-06 15:50 ` [PATCH] virtio: Define and use per-architecture "pfn shift" Hollis Blanchard
2008-11-06 16:22 ` [PATCH] virtio: Define and use per-architecture "pfn shift" constants Anthony Liguori
2008-11-06 20:07 ` Anthony Liguori
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