Re: [PATCH 2/6] x86/sev: add support for enabling RMPOPT

[Dave Hansen]

On 2/18/26 08:55, Kalra, Ashish wrote:
> Because, setting RMPOPT_BASE MSR (which is a per-core MSR) and
> RMPOPT instruction need to be issued on only one thread per core. If
> the primary thread is offlined and secondary thread is not
> considered, we will miss/skip setting either the RMPOPT_BASE MSR or
> not issuing the RMPOPT instruction for that physical CPU, which
> means no RMP optimizations enabled for that physical CPU.
What is the harm of issuing it twice per core?