linux-kernel - [PATCH 2/4] amd-iommu: fix the handling of device aliases in the AMD IOMMU driver.

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Date:	Fri, 22 May 2009 14:06:29 +0200
From:	Joerg Roedel <joerg.roedel@....com>
To:	iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org
CC:	Neil Turton <nturton@...arflare.com>,
	Joerg Roedel <joerg.roedel@....com>
Subject: [PATCH 2/4] amd-iommu: fix the handling of device aliases in the AMD IOMMU driver.

From: Neil Turton <nturton@...arflare.com>

[ impact: set flags for the right req-id in the device table ]

The devid parameter to set_dev_entry_from_acpi is the requester ID
rather than the device ID since it is used to index the IOMMU device
table.  The handling of IVHD_DEV_ALIAS used to pass the device ID.
This patch fixes it to pass the requester ID.

Signed-off-by: Neil Turton <nturton@...arflare.com>
Signed-off-by: Joerg Roedel <joerg.roedel@....com>
---
 arch/x86/kernel/amd_iommu_init.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/x86/kernel/amd_iommu_init.c b/arch/x86/kernel/amd_iommu_init.c
index 35fc965..53f93db 100644
--- a/arch/x86/kernel/amd_iommu_init.c
+++ b/arch/x86/kernel/amd_iommu_init.c
@@ -618,7 +618,7 @@ static void __init init_iommu_from_acpi(struct amd_iommu *iommu,
 		case IVHD_DEV_ALIAS:
 			devid = e->devid;
 			devid_to = e->ext >> 8;
-			set_dev_entry_from_acpi(iommu, devid, e->flags, 0);
+			set_dev_entry_from_acpi(iommu, devid_to, e->flags, 0);
 			amd_iommu_alias_table[devid] = devid_to;
 			break;
 		case IVHD_DEV_ALIAS_RANGE:
-- 
1.6.3.1


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