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[Qemu-devel] [PULL 23/23] intel_iommu: vtd_slpt_level_shift check level
From: |
Michael S. Tsirkin |
Subject: |
[Qemu-devel] [PULL 23/23] intel_iommu: vtd_slpt_level_shift check level |
Date: |
Fri, 17 Feb 2017 21:55:11 +0200 |
From: Peter Xu <address@hidden>
This helps in debugging incorrect level passed in.
Reviewed-by: Jason Wang <address@hidden>
Signed-off-by: Peter Xu <address@hidden>
Reviewed-by: David Gibson <address@hidden>
Reviewed-by: Michael S. Tsirkin <address@hidden>
Signed-off-by: Michael S. Tsirkin <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;
}
--
MST
- Re: [Qemu-devel] [PULL 12/23] virtio: use VRingMemoryRegionCaches for avail and used rings, (continued)
[Qemu-devel] [PULL 14/23] pcie: simplify pcie_add_capability(), Michael S. Tsirkin, 2017/02/17
[Qemu-devel] [PULL 16/23] vfio: introduce vfio_get_vaddr(), Michael S. Tsirkin, 2017/02/17
[Qemu-devel] [PULL 15/23] vfio: trace map/unmap for notify as well, Michael S. Tsirkin, 2017/02/17
[Qemu-devel] [PULL 17/23] vfio: allow to notify unmap for very large region, Michael S. Tsirkin, 2017/02/17
[Qemu-devel] [PULL 18/23] intel_iommu: add "caching-mode" option, Michael S. Tsirkin, 2017/02/17
[Qemu-devel] [PULL 19/23] intel_iommu: simplify irq region translation, Michael S. Tsirkin, 2017/02/17
[Qemu-devel] [PULL 20/23] intel_iommu: renaming gpa to iova where proper, Michael S. Tsirkin, 2017/02/17
[Qemu-devel] [PULL 23/23] intel_iommu: vtd_slpt_level_shift check level,
Michael S. Tsirkin <=
[Qemu-devel] [PULL 22/23] intel_iommu: convert dbg macros to trace for trans, Michael S. Tsirkin, 2017/02/17
[Qemu-devel] [PULL 21/23] intel_iommu: convert dbg macros to traces for inv, Michael S. Tsirkin, 2017/02/17
Re: [Qemu-devel] [PULL 00/23] virtio, pci: fixes, features, Peter Maydell, 2017/02/20