Displaying 1 result from an estimated 1 matches for "general1_intercept_smi".
2013 Oct 21
5
I/O port access handling for PVH
...re guest_io_read() and guest_io_write().
In particular it would then hopefully be safe to do all that without
the on-stack emulation stub, as this ought to be necessary only
for Dom0, which ought to always have direct access to such
"special" I/O ports. With one apparent caveat: SVM sets
GENERAL1_INTERCEPT_SMI (for a reason that escapes my right
now), and hence control doesn''t transfer directly to SMM when
an SMI occurs (and consequently registers aren''t expected). But
I would hope that this intercept isn''t really needed, and hence
could be dropped at least for PVH guests.
Jan