amd-iommu: don't preallocate page tables with CONFIG_IOMMU_STRESS
This forces testing of on-demand page table allocation code. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
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arch/x86/kernel
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@ -661,6 +661,10 @@ static int alloc_new_range(struct amd_iommu *iommu,
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int index = dma_dom->aperture_size >> APERTURE_RANGE_SHIFT;
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int i;
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#ifdef CONFIG_IOMMU_STRESS
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populate = false;
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#endif
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if (index >= APERTURE_MAX_RANGES)
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return -ENOMEM;
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