Messages in this thread | | | Date | Wed, 29 Jun 2011 14:02:02 +0900 | Subject | Re: [PATCH 0/2] Introduce iommu_commit() function | From | KyongHo Cho <> |
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Hi.
On Fri, Jun 24, 2011 at 12:31 AM, Joerg Roedel <joerg.roedel@amd.com> wrote: > It needs to be called whenever a some code changed a domain (either by > attaching/detaching devices or by mapping/unmapping pages in > the domain).
Do you mean we can invalidate IOTLB with this iommu_commit()? We need to invalidate IOTLB without updating page table for some optimized solutions.
If a device in one domain is moved to other domain, IOTLB of the device must be invalidated because it contains translation information of the previous domain.
Regards, KyongHo Cho.
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