Re: [PATCH 1/3] x86: Add bit definitions for Automatic IBRS

2023-05-26 Thread Alejandro Vallejo
On Fri, May 26, 2023 at 05:46:51PM +0100, Andrew Cooper wrote: > AIBRS and EIBRS are very much not the same, and I argued hard to not > have Linux confuse the too, but alas. > > Don't mention EIBRS at all. > > Simply "Auto IBRS is a new feature in AMD Zen4 CPUs and late, intended > to reduce the

Re: [PATCH 1/3] x86: Add bit definitions for Automatic IBRS

2023-05-26 Thread Andrew Cooper
On 26/05/2023 4:00 pm, Alejandro Vallejo wrote: > This is AMD's version of Intel's Enhanced IBRS. Exposed in CPUID > and toggled in EFER. AIBRS and EIBRS are very much not the same, and I argued hard to not have Linux confuse the too, but alas. Don't mention EIBRS at all. Simply "Auto IBRS is a