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[Qemu-devel] [PATCH RFC v4 09/20] intel_iommu: vtd_slpt_level_shift chec
From: |
Peter Xu |
Subject: |
[Qemu-devel] [PATCH RFC v4 09/20] intel_iommu: vtd_slpt_level_shift check level |
Date: |
Fri, 20 Jan 2017 21:08:45 +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
- Re: [Qemu-devel] [PATCH RFC v4 02/20] vfio: introduce vfio_get_vaddr(), (continued)
[Qemu-devel] [PATCH RFC v4 03/20] vfio: allow to notify unmap for very large region, Peter Xu, 2017/01/20
[Qemu-devel] [PATCH RFC v4 04/20] IOMMU: add option to enable VTD_CAP_CM to vIOMMU capility exposoed to guest, Peter Xu, 2017/01/20
[Qemu-devel] [PATCH RFC v4 05/20] intel_iommu: simplify irq region translation, Peter Xu, 2017/01/20
[Qemu-devel] [PATCH RFC v4 06/20] intel_iommu: renaming gpa to iova where proper, Peter Xu, 2017/01/20
[Qemu-devel] [PATCH RFC v4 07/20] intel_iommu: fix trace for inv desc handling, Peter Xu, 2017/01/20
[Qemu-devel] [PATCH RFC v4 08/20] intel_iommu: fix trace for addr translation, Peter Xu, 2017/01/20
[Qemu-devel] [PATCH RFC v4 09/20] intel_iommu: vtd_slpt_level_shift check level,
Peter Xu <=
[Qemu-devel] [PATCH RFC v4 10/20] memory: add section range info for IOMMU notifier, Peter Xu, 2017/01/20
[Qemu-devel] [PATCH RFC v4 11/20] memory: provide IOMMU_NOTIFIER_FOREACH macro, Peter Xu, 2017/01/20
[Qemu-devel] [PATCH RFC v4 12/20] memory: provide iommu_replay_all(), Peter Xu, 2017/01/20
[Qemu-devel] [PATCH RFC v4 13/20] memory: introduce memory_region_notify_one(), Peter Xu, 2017/01/20
[Qemu-devel] [PATCH RFC v4 14/20] memory: add MemoryRegionIOMMUOps.replay() callback, Peter Xu, 2017/01/20
[Qemu-devel] [PATCH RFC v4 16/20] intel_iommu: do replay when context invalidate, Peter Xu, 2017/01/20