On Tue, Dec 10, 2024 at 08:29:31AM -0600, Tom Lendacky wrote: > > This is changing the behavior for SEV-ES and SNP guests(non SECURE_TSC), TSC MSR > > reads are converted to RDTSC. This is a good optimization. But just wanted to > > bring up the subtle impact. > > Right, I think it should still flow through the GHCB MSR request for > non-Secure TSC guests. Why? I'm trying to think of a reason but I'm getting confused by what needs to happen where and when... :-\ -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette