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Index: sys/dev/iommu/busdma_iommu.c
===================================================================
--- sys/dev/iommu/busdma_iommu.c
+++ sys/dev/iommu/busdma_iommu.c
@@ -974,7 +974,7 @@
{
int error;
- unit->dma_enabled = 1;
+ unit->dma_enabled = 0;
error = TUNABLE_INT_FETCH("hw.iommu.dma", &unit->dma_enabled);
if (error == 0) /* compatibility */
TUNABLE_INT_FETCH("hw.dmar.dma", &unit->dma_enabled);
Index: sys/x86/iommu/intel_drv.c
===================================================================
--- sys/x86/iommu/intel_drv.c
+++ sys/x86/iommu/intel_drv.c
@@ -157,7 +157,7 @@
return (1);
}
-static int dmar_enable = 0;
+static int dmar_enable = 1;
static void
dmar_identify(driver_t *driver, device_t parent)
{

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