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AMD IOMMU: enable event logging 

The code to log IOMMU events is in place now. So enable event logging
with this patch.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Joerg Roedel 2008-09-09 16:47:35 +02:00 committed by Ingo Molnar
parent 90008ee4b8
commit 126c52be4b
1 changed files with 8 additions and 0 deletions
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8
arch/x86/kernel/amd_iommu_init.c
View File

@ -253,6 +253,13 @@ void __init iommu_enable(struct amd_iommu *iommu)
iommu_feature_enable(iommu, CONTROL_IOMMU_EN);
}
/* Function to enable IOMMU event logging and event interrupts */
void __init iommu_enable_event_logging(struct amd_iommu *iommu)
{
iommu_feature_enable(iommu, CONTROL_EVT_LOG_EN);
iommu_feature_enable(iommu, CONTROL_EVT_INT_EN);
}
/*
* mapping and unmapping functions for the IOMMU MMIO space. Each AMD IOMMU in
* the system has one.
@ -958,6 +965,7 @@ static void __init enable_iommus(void)
list_for_each_entry(iommu, &amd_iommu_list, list) {
iommu_set_exclusion_range(iommu);
iommu_init_msi(iommu);
iommu_enable_event_logging(iommu);
iommu_enable(iommu);
}
}