22 Nov
2019
22 Nov
'19
9:24 a.m.
On Thu, Nov 21, 2019, 2:12 PM ron minnich <rminnich(a)gmail.com> wrote:
I'm looking for a reference to any Unix ports
where the kernel ran in
a non-paged address space and user mode was paged. I could swear this
was done at some point, and memory says it was on a soft-TLB system
like the MIPS, to avoid TLB pollution and TLB fault overhead.
But maybe I'm nuts. I am happy to hear either answer.
Mips had KSEG0 which didn't go through TLB and was mapped to physical
memory. Some MIPS kernels ran in this space to avoid TLB issues...
Warner