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From: | Paul Brook |
Subject: | [Qemu-devel] Re: [RFC PATCH 4/7] ide: IOMMU support |
Date: | Wed, 14 Jul 2010 14:53:03 +0100 |
User-agent: | KMail/1.13.3 (Linux/2.6.33-2-amd64; KDE/4.4.4; x86_64; ; ) |
> Memory accesses must go through the IOMMU layer. No. Devices should not know or care whether an IOMMU is present. You should be adding a DeviceState argument to cpu_physical_memory_{rw,map}. This should then handle IOMMU translation transparently. You also need to accomodate the the case where multiple IOMMU are present. Paul
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