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From: "Michael S. Tsirkin" <mst@redhat.com>
To: Avi Kivity <avi@redhat.com>
Cc: kvm@vger.kernel.org, joro@8bytes.org, qemu-devel@nongnu.org,
	blauwirbel@gmail.com, yamahata@valinux.co.jp,
	paul@codesourcery.com,
	Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro>
Subject: [Qemu-devel] Re: [PATCH 4/7] ide: use the PCI memory access interface
Date: Thu, 2 Sep 2010 18:39:34 +0300	[thread overview]
Message-ID: <20100902153934.GE18182@redhat.com> (raw)
In-Reply-To: <4C7FC1A9.3080800@redhat.com>

On Thu, Sep 02, 2010 at 06:24:25PM +0300, Avi Kivity wrote:
> That's not a practical long term solution.  Eventually everything
> gets turned on.

That's why I wanted a simple !iommu check and fallback.
This way unless it's really used there's no overhead.

> I don't really see a problem with the additional indirection.  By
> the time we reach actual hardware to satisfy the request,
> we'll have gone through many such indirections; modern processors deal
> very well with them.
> 
> -- 
> error compiling committee.c: too many arguments to function

  reply	other threads:[~2010-09-02 15:45 UTC|newest]

Thread overview: 48+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-08-28 14:54 [Qemu-devel] [PATCH 0/7] AMD IOMMU emulation patchset v4 Eduard - Gabriel Munteanu
2010-08-28 14:54 ` [Qemu-devel] [PATCH 1/7] pci: expand tabs to spaces in pci_regs.h Eduard - Gabriel Munteanu
2010-08-31 20:29   ` [Qemu-devel] " Michael S. Tsirkin
2010-08-31 22:58     ` Eduard - Gabriel Munteanu
2010-09-01 10:39       ` Michael S. Tsirkin
2010-08-28 14:54 ` [Qemu-devel] [PATCH 2/7] pci: memory access API and IOMMU support Eduard - Gabriel Munteanu
2010-09-02  5:28   ` [Qemu-devel] " Michael S. Tsirkin
2010-09-02  8:40     ` Eduard - Gabriel Munteanu
2010-09-02  9:49       ` Michael S. Tsirkin
2010-09-04  9:01         ` Blue Swirl
2010-09-05  7:10           ` Michael S. Tsirkin
2010-08-28 14:54 ` [Qemu-devel] [PATCH 3/7] AMD IOMMU emulation Eduard - Gabriel Munteanu
2010-08-28 15:58   ` [Qemu-devel] " Blue Swirl
2010-08-28 21:53     ` Eduard - Gabriel Munteanu
2010-08-29 20:37       ` Blue Swirl
2010-08-30  3:07   ` [Qemu-devel] " Isaku Yamahata
2010-08-30  5:54     ` Eduard - Gabriel Munteanu
2010-08-28 14:54 ` [Qemu-devel] [PATCH 4/7] ide: use the PCI memory access interface Eduard - Gabriel Munteanu
2010-09-02  5:19   ` [Qemu-devel] " Michael S. Tsirkin
2010-09-02  9:12     ` Eduard - Gabriel Munteanu
2010-09-02  9:58       ` Michael S. Tsirkin
2010-09-02 15:01         ` Eduard - Gabriel Munteanu
2010-09-02 15:24           ` Avi Kivity
2010-09-02 15:39             ` Michael S. Tsirkin [this message]
2010-09-02 16:07               ` Avi Kivity
2010-09-02 15:31           ` Michael S. Tsirkin
2010-08-28 14:54 ` [Qemu-devel] [PATCH 5/7] rtl8139: " Eduard - Gabriel Munteanu
2010-08-28 14:54 ` [Qemu-devel] [PATCH 6/7] eepro100: " Eduard - Gabriel Munteanu
2010-08-28 14:54 ` [Qemu-devel] [PATCH 7/7] ac97: " Eduard - Gabriel Munteanu
2010-08-28 16:00 ` [Qemu-devel] Re: [PATCH 0/7] AMD IOMMU emulation patchset v4 Blue Swirl
2010-08-29  9:55   ` Joerg Roedel
2010-08-29 20:44     ` Blue Swirl
2010-08-29 22:08       ` [Qemu-devel] [PATCH 2/7] pci: memory access API and IOMMU support Eduard - Gabriel Munteanu
2010-08-29 22:11         ` [Qemu-devel] " Eduard - Gabriel Munteanu
2010-09-01 20:10         ` [Qemu-devel] " Stefan Weil
2010-09-02  6:00           ` Michael S. Tsirkin
2010-09-02  9:08             ` Eduard - Gabriel Munteanu
2010-09-02 13:24               ` Anthony Liguori
2010-09-02  8:51           ` Eduard - Gabriel Munteanu
2010-09-02 16:05             ` Stefan Weil
2010-09-02 16:14               ` Eduard - Gabriel Munteanu
2010-09-13 20:01 ` [Qemu-devel] [PATCH RFC] dma_rw.h (was Re: [PATCH 0/7] AMD IOMMU emulation patchset v4) Michael S. Tsirkin
2010-09-13 20:45   ` Anthony Liguori
2010-09-16  7:12     ` Eduard - Gabriel Munteanu
2010-09-16  9:35     ` Michael S. Tsirkin
2010-09-16  7:06   ` [Qemu-devel] " Eduard - Gabriel Munteanu
2010-09-16  9:20     ` Michael S. Tsirkin
2010-09-16 11:15       ` Eduard - Gabriel Munteanu

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