Commit 7e58326a authored by Peter Xu's avatar Peter Xu Committed by Michael S. Tsirkin
Browse files

intel_iommu: vtd_slpt_level_shift check level 



This helps in debugging incorrect level passed in.

Reviewed-by: default avatarJason Wang <jasowang@redhat.com>
Signed-off-by: default avatarPeter Xu <peterx@redhat.com>
Reviewed-by: default avatarDavid Gibson <david@gibson.dropbear.id.au>
Reviewed-by: default avatarMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: default avatarMichael S. Tsirkin <mst@redhat.com>
parent 6c441e1d

hw/i386/intel_iommu.c

+1 −0
Original line number Diff line number Diff line
@@ -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;

}