Paolo Bonzini <pbonz...@redhat.com> writes: > Il 11/06/2013 03:35, Michael S. Tsirkin ha scritto: >> Two points >> 1. You never explained what you mean by un-hardware like. >> >> Currently bios is in a ROM device, and it has a >> template for ACPI tables together with it. >> This simply moves the tables to a separate ROM >> device (FW CFG), and generalizes the template using >> the linker interface. >> One ROM is hardware-like but two is un-hardware like? >> >> ACPI tables are static so it's likely lots of >> hardware has at least some of them pre-formatted in flash, >> then tweak some things like SRAT a bit. > > Also having a "bootstrap processor" was certainly not unheard of some > decades ago. Right now we get all sort of SMM hacks instead of adding > more processors, but it's certainly not un-hardware like.
It's still not unheard of. This is how power systems work still. However, with PCs, the ACPI tables are generated by/included in the firmware. There's no question about that. > > Maybe we should just have a bytecode interpreter and write the ACPI > generator in that language. :) Indeed, we can even using an existing bytecode like the x86 instruction set and use this VM called KVM to execute it. I hear there are even C compilers for this bytecode ;-) Regards, Anthony Liguori > Paolo
