From: Andi Kleen <andi@firstfloor.org>
To: Muli Ben-Yehuda <muli@il.ibm.com>
Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>,
andi@firstfloor.org, linux-kernel@vger.kernel.org,
akpm@linux-foundation.org, alexisb@us.ibm.com
Subject: Re: [PATCH 0/2] x86: per-device dma_mapping_ops
Date: Thu, 15 May 2008 23:03:40 +0200 [thread overview]
Message-ID: <20080515210340.GC318@one.firstfloor.org> (raw)
In-Reply-To: <20080515152631.GG6778@il.ibm.com>
On Thu, May 15, 2008 at 06:26:31PM +0300, Muli Ben-Yehuda wrote:
> On Thu, May 15, 2008 at 06:41:26PM +0900, FUJITA Tomonori wrote:
>
> > I thought that KVM people want to do it per device (in the first
> > case). So with my patchse, they can replace the dma_ops pointer in
> > dev_archdata with what they want.
>
> That's my understanding too. We use stackable ops as a poor man's
> replacement for per-device ops (depending on what kind of device it
> is, call the original ops or our pvdma ops).
But in the KVM case you still need to support the underlying ops too, e.g. in
case of bouncing through swiotlb needed
-Andi
next prev parent reply other threads:[~2008-05-15 20:56 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-05-13 6:04 [PATCH 0/2] x86: per-device dma_mapping_ops FUJITA Tomonori
2008-05-13 6:04 ` [PATCH 1/2] add the device argument to dma_mapping_error FUJITA Tomonori
2008-05-13 6:04 ` [PATCH 2/2] x86: per-device dma_mapping_ops support FUJITA Tomonori
2008-05-14 5:55 ` Muli Ben-Yehuda
2008-05-15 20:45 ` Yinghai Lu
2008-05-16 3:44 ` FUJITA Tomonori
2008-05-13 15:39 ` [PATCH 1/2] add the device argument to dma_mapping_error Randy Dunlap
2008-05-15 1:12 ` FUJITA Tomonori
2008-05-14 5:49 ` [PATCH 0/2] x86: per-device dma_mapping_ops Muli Ben-Yehuda
2008-05-15 1:12 ` FUJITA Tomonori
2008-05-15 2:00 ` Alexis Bruemmer
2008-05-15 2:30 ` FUJITA Tomonori
2008-05-15 18:21 ` Alexis Bruemmer
2008-05-15 15:17 ` Muli Ben-Yehuda
2008-05-15 15:15 ` Muli Ben-Yehuda
2008-05-15 9:01 ` Andi Kleen
2008-05-15 9:16 ` FUJITA Tomonori
2008-05-15 9:30 ` Andi Kleen
2008-05-15 9:41 ` FUJITA Tomonori
2008-05-15 10:48 ` Andi Kleen
2008-05-15 15:32 ` Muli Ben-Yehuda
2008-05-16 3:44 ` FUJITA Tomonori
2008-05-16 5:24 ` Andi Kleen
2008-05-19 6:32 ` FUJITA Tomonori
2008-05-15 15:26 ` Muli Ben-Yehuda
2008-05-15 21:03 ` Andi Kleen [this message]
2008-05-15 21:39 ` Muli Ben-Yehuda
2008-05-15 21:45 ` Andi Kleen
2008-05-15 21:53 ` Muli Ben-Yehuda
2008-05-15 22:05 ` Muli Ben-Yehuda
2008-05-15 18:25 ` Alexis Bruemmer
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