Process Layout for Sun4u Platforms
On Sun4u platforms, there are separate kernel and user contexts. The process layout looks like this:
On this platform, KERNELBASE is set to Ox10000000. USERLIMIT defines the upper limit of the user context; it is set to OxF0000000. Addresses below KERNELBASE probably refer to user addresses, while addresses above USERLIMIT probably refer to kernel addresses.
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