From: "Jan Beulich" <jbeulich@novell.com>
To: Keir.Fraser@cl.cam.ac.uk
Cc: muli@il.ibm.com, xen-devel@lists.xensource.com
Subject: Re: x86 swiotlb questions
Date: Wed, 03 Jan 2007 07:10:16 +0000 [thread overview]
Message-ID: <459B64E8.76E4.0078.0@novell.com> (raw)
In-Reply-To: <C1BC56A5.6870%keir@xensource.com>
>Here's a thought: if the highmem DMA requests come from *only* the blkdev
>subsystem, then perhaps we could use its highmem bounce buffer (I think that
>still exists?).
Another, only partially related thought: The addition of KM_SWIOTLB is the only
difference to native kmap_types.h. It would seem to me that, at the price of
disabling interrupts around the use, it should be possible to replace that with
KM_BOUNCE_READ and let go of the Xen specific header...
Jan
next prev parent reply other threads:[~2007-01-03 7:10 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-12-30 17:32 x86 swiotlb questions Jan Beulich
2006-12-30 17:47 ` Keir Fraser
2007-01-02 8:39 ` Jan Beulich
2007-01-03 7:10 ` Jan Beulich [this message]
2007-01-03 9:32 ` Keir Fraser
2007-01-03 11:01 ` Jan Beulich
-- strict thread matches above, loose matches on Subject: below --
2006-12-22 16:20 Jan Beulich
2006-12-22 21:00 ` Herbert Xu
2006-12-23 9:48 ` Keir Fraser
2006-12-22 14:49 Jan Beulich
2006-12-25 4:50 ` Muli Ben-Yehuda
2006-12-25 10:20 ` Keir Fraser
2006-12-15 12:50 Jan Beulich
2006-12-15 13:35 ` Keir Fraser
2006-12-15 13:53 ` Jan Beulich
2006-12-15 14:03 ` Keir Fraser
2006-12-15 14:17 ` Jan Beulich
2006-12-15 14:19 ` Keir Fraser
2006-12-15 14:46 ` Jan Beulich
2006-12-15 16:47 ` Keir Fraser
2006-12-15 16:19 ` Alan
2006-12-18 7:44 ` Jan Beulich
2006-12-18 9:39 ` Keir Fraser
2006-12-19 12:48 ` Jan Beulich
2006-12-19 14:14 ` Keir Fraser
2006-12-19 14:39 ` Jan Beulich
2006-12-19 14:46 ` Keir Fraser
2006-12-19 17:07 ` Muli Ben-Yehuda
2006-12-20 16:40 ` Jan Beulich
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