From: Jeff Dike <jdike@addtoit.com>
To: lianwei Wang <lianwei.wang@gmail.com>
Cc: user-mode-linux-devel@lists.sourceforge.net
Subject: Re: [uml-devel] Question about Host PCI and DMA support in UML
Date: Thu, 10 Jul 2008 13:35:48 -0400 [thread overview]
Message-ID: <20080710173548.GD18429@c2.user-mode-linux.org> (raw)
In-Reply-To: <39134b110807082359w4aca52a2m6910e8371a82c224@mail.gmail.com>
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On Wed, Jul 09, 2008 at 02:59:02PM +0800, lianwei Wang wrote:
> I find from the UML website that the UML can access the host PCI device
> accessing with VPCI patch, but it seem that that VPCI patch is too old. Do
> you know that latest information about the VPCI patch? Is it stable? And
> where could I find the patch?
The VPCI patch is old. Attached is the latest tarball that I can find.
> >From the below mail you say that you are trying to emulate the DMA using
> iomem. How about the latest information of it? And does it worked or not?
iomem works fine - it just depends on whether it's what you want. If
you want actual DMA from a physical device, it's not. If you want to
emulate an iomapped device, then it is.
Jeff
--
Work email - jdike at linux dot intel dot com
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prev parent reply other threads:[~2008-07-10 17:36 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-09 6:59 [SPAM] [uml-devel] Question about Host PCI and DMA support in UML lianwei Wang
2008-07-10 17:35 ` Jeff Dike [this message]
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