From: Blue Swirl <blauwirbel@gmail.com>
To: qemu-devel@nongnu.org
Cc: Tristan Gingold <gingold@adacore.com>
Subject: Re: [Qemu-devel] PATCH/RFC: PCI memory mapping
Date: Thu, 2 Apr 2009 20:32:17 +0300 [thread overview]
Message-ID: <f43fc5580904021032m390a4dd6h16435e393b09f2b6@mail.gmail.com> (raw)
In-Reply-To: <1238684238.18745.17.camel@nibbler.dlib.indiana.edu>
On 4/2/09, Brian Wheeler <bdwheele@indiana.edu> wrote:
> [first off, if there's an easier way to do this, let me know!]
>
> This patch adds an address mapping function to the PCI bus so the host
> chipset can remap PCI generated addresses to the appropriate physical
> addresses.
This discussion has come up many, many times, but finally the design
was settled to the current dma API. It supports resolving guest
addresses to host pointers, so that part should be extended instead
of adding new functionality. We want (one day) zero copy DMA even with
IOMMU.
next prev parent reply other threads:[~2009-04-02 17:32 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-02 14:57 [Qemu-devel] PATCH/RFC: PCI memory mapping Brian Wheeler
2009-04-02 15:18 ` [Qemu-devel] " Tristan Gingold
2009-04-02 17:23 ` Brian Wheeler
2009-04-02 17:32 ` Blue Swirl [this message]
2009-04-02 17:42 ` [Qemu-devel] " Brian Wheeler
2009-04-02 22:40 ` Paul Brook
2009-04-03 15:05 ` Brian Wheeler
2009-04-03 15:28 ` Paul Brook
2009-04-03 16:01 ` Brian Wheeler
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