iommu/vt-d: Ratelimit fault handler
commit c43fce4e upstream. Fault rates can easily overwhelm the console and make the system unresponsive. Ratelimit to allow an opportunity for maintenance. Signed-off-by:Alex Williamson <alex.williamson@redhat.com> Fixes: 0ac2491f ('x86, dmar: move page fault handling code to dmar.c') Signed-off-by:
Joerg Roedel <jroedel@suse.de> Signed-off-by:
Kamal Mostafa <kamal@canonical.com>
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