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-rw-r--r--arch/x86/kernel/amd_iommu.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c
index 31d56c3..543822b 100644
--- a/arch/x86/kernel/amd_iommu.c
+++ b/arch/x86/kernel/amd_iommu.c
@@ -783,6 +783,11 @@ static unsigned long dma_ops_alloc_addresses(struct device *dev,
{
unsigned long address;
+#ifdef CONFIG_IOMMU_STRESS
+ dom->next_address = 0;
+ dom->need_flush = true;
+#endif
+
address = dma_ops_area_alloc(dev, dom, pages, align_mask,
dma_mask, dom->next_address);
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