On Tue, Jan 12, 2021, Wei Huang wrote: > From: Bandan Das <bsd@xxxxxxxxxx> > > While running VM related instructions (VMRUN/VMSAVE/VMLOAD), some AMD > CPUs check EAX against reserved memory regions (e.g. SMM memory on host) > before checking VMCB's instruction intercept. It would be very helpful to list exactly which CPUs are/aren't affected, even if that just means stating something like "all CPUs before XYZ". Given patch 2/2, I assume it's all CPUs without the new CPUID flag?