On 22/08/19 19:59, Laszlo Ersek wrote: > The firmware and QEMU could agree on a formula, which would compute the > CPU-specific SMBASE from a value pre-programmed by the firmware, and the > initial APIC ID of the hot-added CPU. > > Yes, it would duplicate code -- the calculation -- between QEMU and > edk2. While that's not optimal, it wouldn't be a first.
No, that would be unmaintainable. The best solution to me seems to be to make SMBASE programmable from non-SMM code if some special conditions hold. Michael, would it be possible to get in contact with the Intel architects? Paolo
