NonStop S-Series Server Description Manual (G06.24+)

Memory Addressing and Access
HP NonStop S-Series Server Description Manual—520331-003
4-7
Addressing in the Process Address Space
Figure 4-3. Four Distinct Addressing Areas Exist in the Process Address Space
Privileged
Space
Kseg0
Cached Access
to 512 MB
Physical Memory
Kseg1
Uncached Access
to 512 MB
Physical Memory
Kseg2
8192 Unitary
Segments
(1024 MB)
16384 Unitary
Segments
(2048 MB)
Relative
Addressing
Physical
Addressing
Absolute
Addressing
Nonprivileged
Space
%h 00000000
%h FFFFFFFF
%h 80000000
VST233.vsd