Hi David, Luispa,
Thank you for your reply.
It's not related a specific platform, but for all Romley / Grantley platform products.
From the BWG, to disable CPU VR's SetVID_Decay, we can set SAPMCTRL bit 30 .
My question is whether this bit can disable SetPS(PS2)?
Or do I need to configure VR_CURRENT_CONFIG(601h) to 00 to turn off SetPS(PS2) commands?