From: Joerg Roedel <joerg.roedel@amd.com>
Date: Tue, 25 Nov 2008 11:56:12 +0000 (+0100)
Subject: AMD IOMMU: set device table entry for aliased devices
X-Git-Tag: v2.6.28-rc8~58^2~2^2~1
X-Git-Url: http://www.pilppa.org/gitweb/gitweb.cgi?a=commitdiff_plain;h=f91ba190648be4ff127d6aaf3993ac19d66dc2c2;p=linux-2.6-omap-h63xx.git

AMD IOMMU: set device table entry for aliased devices

In some rare cases a request can arrive an IOMMU with its originial
requestor id even it is aliased. Handle this by setting the device table
entry to the same protection domain for the original and the aliased
requestor id.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
---

diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c
index e4899e0e878..a232e5a85d4 100644
--- a/arch/x86/kernel/amd_iommu.c
+++ b/arch/x86/kernel/amd_iommu.c
@@ -858,6 +858,9 @@ static int get_device_resources(struct device *dev,
 		print_devid(_bdf, 1);
 	}
 
+	if (domain_for_device(_bdf) == NULL)
+		set_device_domain(*iommu, *domain, _bdf);
+
 	return 1;
 }