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| From: | Avi Kivity |
| Subject: | Re: [Qemu-devel] Re: [RFC PATCH 4/7] ide: IOMMU support |
| Date: | Thu, 15 Jul 2010 20:22:31 +0300 |
| User-agent: | Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.10) Gecko/20100621 Fedora/3.0.5-1.fc13 Thunderbird/3.0.5 |
On 07/15/2010 08:17 PM, Chris Wright wrote:
For emulated device, it seems like we can ignore ATS completely, no?Not if you want to emulate an ATS capable device ;)
What I meant was that the whole request translation, invalidate, dma using a translated address thing is invisible to software. We can emulate an ATS capable device by going through the iommu every time.
-- I have a truly marvellous patch that fixes the bug which this signature is too narrow to contain.
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