I'm not sure why, but upon reading that my initial thoughts are - will this finally be the death of the PS/2 port that's been locked into IRQ1 on the master PIC.
Wouldn't you need a giant backwards incompatible uplift of OS, and compiler tool chain for userspace all at the same time? It sounds like it might be easier to treat it as a new OS port.
what did he say?
Do both. AMD target short term easy to live with remediation but older OS will work. Intel are architecting a better longterm model