Mark.Haywood wrote: > Li, Aubrey wrote: >> Andrei Dorofeev wrote: >> >> >>> I also think it should be HW_ALL per socket if P-state hardware >>> coordination is supported (there's CPUID bit for that) or SW_ALL >>> per socket otherwise. >>> >> >> MISC_PWR_MGMT(bit0) MSR can tell us if it's HW_ALL or not. >> Ideally, there is an option in the BIOS for that. >> > > Where is this bit documented? I didn't find it in SDM vol3a.
I read it in the BIOS writer's guide. -Aubrey
