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[Qemu-devel] [PATCH v5 09/18] intel_iommu: vtd_slpt_level_shift check le
From: |
Peter Xu |
Subject: |
[Qemu-devel] [PATCH v5 09/18] intel_iommu: vtd_slpt_level_shift check level |
Date: |
Tue, 24 Jan 2017 18:26:02 +0800 |
This helps in debugging incorrect level passed in.
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 2c13b7b..6f5f68a 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 v5 00/18] VT-d: vfio enablement and misc enhances, Peter Xu, 2017/01/24
- [Qemu-devel] [PATCH v5 01/18] vfio: trace map/unmap for notify as well, Peter Xu, 2017/01/24
- [Qemu-devel] [PATCH v5 02/18] vfio: introduce vfio_get_vaddr(), Peter Xu, 2017/01/24
- [Qemu-devel] [PATCH v5 03/18] vfio: allow to notify unmap for very large region, Peter Xu, 2017/01/24
- [Qemu-devel] [PATCH v5 04/18] intel_iommu: add "caching-mode" option, Peter Xu, 2017/01/24
- [Qemu-devel] [PATCH v5 05/18] intel_iommu: simplify irq region translation, Peter Xu, 2017/01/24
- [Qemu-devel] [PATCH v5 06/18] intel_iommu: renaming gpa to iova where proper, Peter Xu, 2017/01/24
- [Qemu-devel] [PATCH v5 07/18] intel_iommu: fix trace for inv desc handling, Peter Xu, 2017/01/24
- [Qemu-devel] [PATCH v5 09/18] intel_iommu: vtd_slpt_level_shift check level,
Peter Xu <=
- [Qemu-devel] [PATCH v5 08/18] intel_iommu: fix trace for addr translation, Peter Xu, 2017/01/24
- [Qemu-devel] [PATCH v5 10/18] memory: add section range info for IOMMU notifier, Peter Xu, 2017/01/24
- [Qemu-devel] [PATCH v5 11/18] memory: provide IOMMU_NOTIFIER_FOREACH macro, Peter Xu, 2017/01/24
- [Qemu-devel] [PATCH v5 12/18] memory: provide iommu_replay_all(), Peter Xu, 2017/01/24
- [Qemu-devel] [PATCH v5 13/18] memory: introduce memory_region_notify_one(), Peter Xu, 2017/01/24
- [Qemu-devel] [PATCH v5 14/18] memory: add MemoryRegionIOMMUOps.replay() callback, Peter Xu, 2017/01/24
- [Qemu-devel] [PATCH v5 15/18] intel_iommu: provide its own replay() callback, Peter Xu, 2017/01/24
- [Qemu-devel] [PATCH v5 16/18] intel_iommu: do replay when context invalidate, Peter Xu, 2017/01/24
- [Qemu-devel] [PATCH v5 17/18] intel_iommu: allow dynamic switch of IOMMU region, Peter Xu, 2017/01/24
- [Qemu-devel] [PATCH v5 18/18] intel_iommu: enable vfio devices, Peter Xu, 2017/01/24