x86/p2m: introduce p2m_is_special()
Seeing the similarity of grant, foreign, and (subsequently) direct-MMIO
handling, introduce a new P2M type group named "special" (as in "needing
special accessors to create/destroy").
Also use -EPERM instead of other error codes on the two domain_crash()
paths touched.
This is part of XSA-378.
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Paul Durrant <paul@xen.org>
master commit:
0bf755e2c856628e11e93c76c3e12974e9964638
master date: 2021-08-25 14:17:07 +0200
projects / xen.git / commit