Page 110 - slides.dvi

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Can
–
–
–
–
Operating
can
e.g.
nice
have
store
must
easily
also
be
as
IBM
Intel
CAP
for
in
support
checked
Systems
Capabilities
I,
Plessey
use
—
by
make
part
used
special
II,
Capabilities
of
III
address
passing
sure
accessible
Protection
iAPX432
with
PP250
system/38
of
to
distributed
software
associated
machine
space
high
encryption
subject
of
with
addressing
duty
systems
hardware
can’t
capabilities
active
capabilities:
subject
cycle
on
instructions
forge
hardware
to
subjects,
modify
procedure
so:
capabilities
(restrict)
(program)
call
capabilities
106