From: Muli Ben-Yehuda <muli@il.ibm.com>
To: Amit Shah <amit.shah@qumranet.com>
Cc: kvm-devel@lists.sourceforge.net,
virtualization@lists.linux-foundation.org,
Ben-Ami Yassour1 <BENAMI@il.ibm.com>,
gcosta@redhat.com, chrisw@redhat.com, dor.laor@qumranet.com,
allen.m.kay@intel.com, avi@qumranet.com,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] x86 DMA: Handle devices assigned to the guest by the host
Date: Wed, 30 Apr 2008 09:29:41 +0300 [thread overview]
Message-ID: <20080430062940.GM7378@il.ibm.com> (raw)
In-Reply-To: <1209465451-3758-2-git-send-email-amit.shah@qumranet.com>
On Tue, Apr 29, 2008 at 01:37:29PM +0300, Amit Shah wrote:
> dma_alloc_coherent() doesn't call dma_ops->alloc_coherent in case no
> IOMMU translations are necessary.
I always thought this was a huge wart in the x86-64 DMA ops. Would
there be strong resistance to fixing it so that alloc_coherent
matches the way the other ops are used? This will eliminate the need
for this patch and will make other DMA ops implementations saner.
Cheers,
Muli
next prev parent reply other threads:[~2008-04-30 6:29 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-29 10:37 PV DMA for PCI passthrough devices for KVM Amit Shah
2008-04-29 10:37 ` [PATCH] x86 DMA: Handle devices assigned to the guest by the host Amit Shah
2008-04-29 10:37 ` [PATCH] KVM x86: Handle hypercalls for assigned PCI devices Amit Shah
2008-04-29 10:37 ` [PATCH] KVM PV Guest: Implement paravirtualized DMA Amit Shah
2008-04-29 13:31 ` Andi Kleen
2008-04-29 13:59 ` Amit Shah
2008-04-29 14:44 ` [PATCH] KVM x86: Handle hypercalls for assigned PCI devices Glauber Costa
2008-04-29 15:58 ` Amit Shah
2008-04-29 22:48 ` Avi Kivity
2008-04-30 6:05 ` Muli Ben-Yehuda
2008-05-01 13:18 ` Amit Shah
2008-04-29 13:14 ` [PATCH] x86 DMA: Handle devices assigned to the guest by the host Andi Kleen
2008-04-29 13:49 ` Amit Shah
2008-04-30 6:29 ` Muli Ben-Yehuda [this message]
2008-04-29 13:15 ` PV DMA for PCI passthrough devices for KVM Andi Kleen
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