Re: [Qemu-arm] [Qemu-devel] [PATCH 0/4] virt: provide secure-only RAM and first flash

[Paolo Bonzini]

On 09/03/2016 15:06, Laszlo Ersek wrote:
> However: despite reusing the core SMM code identically in the guest,
> there is at least one stark behavioral difference: in QEMU the SMI is
> raised only on the processor that triggers it. This exercises paths in
> the core SMM code where processors have to count down timeouts and bring
> each other in, and these busy loops are very visible to an interactive
> user in certain circumstances.

Right, and that's unfortunately something that's hard to change because
SeaBIOS relies on it. :((

Paolo