From: Peter Xu <[email protected]> This helps in debugging incorrect level passed in.
Reviewed-by: Jason Wang <[email protected]> Signed-off-by: Peter Xu <[email protected]> Reviewed-by: David Gibson <[email protected]> Reviewed-by: Michael S. Tsirkin <[email protected]> Signed-off-by: Michael S. Tsirkin <[email protected]> --- 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
