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Message-ID: <1242994893-28902-12-git-send-email-joerg.roedel@amd.com>
Date: Fri, 22 May 2009 14:21:32 +0200
From: Joerg Roedel <joerg.roedel@....com>
To: iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org
CC: Joerg Roedel <joerg.roedel@....com>
Subject: [PATCH 11/12] amd-iommu: don't preallocate page tables with CONFIG_IOMMU_STRESS
[ impact: force testing of on-demand page table allocation code ]
Signed-off-by: Joerg Roedel <joerg.roedel@....com>
---
arch/x86/kernel/amd_iommu.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c
index 543822b..33434c4 100644
--- a/arch/x86/kernel/amd_iommu.c
+++ b/arch/x86/kernel/amd_iommu.c
@@ -661,6 +661,10 @@ static int alloc_new_range(struct amd_iommu *iommu,
int index = dma_dom->aperture_size >> APERTURE_RANGE_SHIFT;
int i;
+#ifdef CONFIG_IOMMU_STRESS
+ populate = false;
+#endif
+
if (index >= APERTURE_MAX_RANGES)
return -ENOMEM;
--
1.6.3.1
--
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