'help' to
iommu-requ...@lists.linux-foundation.org
Message: 1
Date: Thu, 29 Mar 2012 13:19:58 +
From: "Mingarelli, Thomas"
To: "iommu@lists.linux-foundation.org"
Cc: "Camuso, Tony"
Subject: RE: [Intel IOMMU PATCH] Re-evaluate RMRR info fo
-foundation.org"
Cc: "Camuso, Tony"
Subject: RE: [Intel IOMMU PATCH] Re-evaluate RMRR info for devices
removed from si domain
Message-ID:
<9774516974af5f4c8a2c3c69cd3412332037d...@g9w0755.americas.hpqcorp.net>
Content-Type: text/plain; charset="us
This patch is being submitted to handle the case where a pci device is
placed into the si domain, when booting in iommu passthrough mode, then
removed. The RMRR information for such devices need to be re-processed
to avoid DMA Read errors due to the Present Bit being cleared in the
device's context
