KAISER: hiding the kernel from user space

Posted Nov 15, 2017 14:05 UTC (Wed) by arjan (subscriber, #36785)
In reply to: KAISER: hiding the kernel from user space by ballombe
Parent article: KAISER: hiding the kernel from user space

I think you might mean s390

Posted Nov 15, 2017 14:56 UTC (Wed) by cborni (subscriber, #12949) [Link] (3 responses)

I think both SPARC (I am sure about Solaris, but not Linux) and s390 (here I am sure for Linux) have separate kernel and user address spaces.

Posted Nov 16, 2017 2:06 UTC (Thu) by jamesmorris (subscriber, #82698) [Link]

Correct for SPARC. The user and kernel address spaces are separate.

Posted Nov 16, 2017 2:10 UTC (Thu) by jamesmorris (subscriber, #82698) [Link] (1 responses)

Also, it's an architectural feature, so it's true on Linux.

Posted Nov 16, 2017 12:52 UTC (Thu) by ballombe (subscriber, #9523) [Link]

So maybe pushing this will motivate architecture designers to provide this feature, like it was done for virtualization.