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[Qemu-devel] [PATCH v7 09/17] intel_iommu: vtd_slpt_level_shift check le
From: |
Peter Xu |
Subject: |
[Qemu-devel] [PATCH v7 09/17] intel_iommu: vtd_slpt_level_shift check level |
Date: |
Tue, 7 Feb 2017 16:28:11 +0800 |
This helps in debugging incorrect level passed in.
Reviewed-by: Jason Wang <address@hidden>
Signed-off-by: Peter Xu <address@hidden>
---
hw/i386/intel_iommu.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c
index ad304f6..22d8226 100644
--- a/hw/i386/intel_iommu.c
+++ b/hw/i386/intel_iommu.c
@@ -168,6 +168,7 @@ static gboolean vtd_hash_remove_by_domain(gpointer key,
gpointer value,
/* The shift of an addr for a certain level of paging structure */
static inline uint32_t vtd_slpt_level_shift(uint32_t level)
{
+ assert(level != 0);
return VTD_PAGE_SHIFT_4K + (level - 1) * VTD_SL_LEVEL_BITS;
}
--
2.7.4
- [Qemu-devel] [PATCH v7 04/17] intel_iommu: add "caching-mode" option, (continued)
- [Qemu-devel] [PATCH v7 04/17] intel_iommu: add "caching-mode" option, Peter Xu, 2017/02/07
- [Qemu-devel] [PATCH v7 06/17] intel_iommu: renaming gpa to iova where proper, Peter Xu, 2017/02/07
- [Qemu-devel] [PATCH v7 07/17] intel_iommu: convert dbg macros to traces for inv, Peter Xu, 2017/02/07
- [Qemu-devel] [PATCH v7 08/17] intel_iommu: convert dbg macros to trace for trans, Peter Xu, 2017/02/07
- [Qemu-devel] [PATCH v7 09/17] intel_iommu: vtd_slpt_level_shift check level,
Peter Xu <=
- [Qemu-devel] [PATCH v7 10/17] memory: add section range info for IOMMU notifier, Peter Xu, 2017/02/07
- [Qemu-devel] [PATCH v7 11/17] memory: provide IOMMU_NOTIFIER_FOREACH macro, Peter Xu, 2017/02/07
- [Qemu-devel] [PATCH v7 12/17] memory: provide iommu_replay_all(), Peter Xu, 2017/02/07
- [Qemu-devel] [PATCH v7 13/17] memory: introduce memory_region_notify_one(), Peter Xu, 2017/02/07
- [Qemu-devel] [PATCH v7 14/17] memory: add MemoryRegionIOMMUOps.replay() callback, Peter Xu, 2017/02/07