17 Sep
2015
17 Sep
'15
9:19 p.m.
On 9/17/15 8:55 PM, Jon Elson wrote:
I think the later X86 machines have a tiny block of patch microcode
that is available to the OS to put special routines into.
Certainly not Intel CPUs. All of the microcode patches are loaded via
special instruction sequences
(described in the SDM). The microcode patch RAM is in the CPU and not
visible to S/W.
TTFN - Guy