On Fri, Oct 13, 2017 at 03:46:39PM -0700, Stefano Stabellini wrote: > On Fri, 13 Oct 2017, Jan Beulich wrote: > > >>> On 13.10.17 at 13:13, <haozhong.zh...@intel.com> wrote: > > > To Jan, Andrew, Stefano and Anthony, > > > > > > what do you think about allowing QEMU to build the entire guest ACPI > > > and letting SeaBIOS to load it? ACPI builder code in hvmloader is > > > still there and just bypassed in this case. > > > > Well, if that can be made work in a non-quirky way and without > > loss of functionality, I'd probably be fine. I do think, however, > > that there's a reason this is being handled in hvmloader right now. > > And not to discourage you, just as a clarification, you'll also need to > consider backward compatibility: unless the tables are identical, I > imagine we'll have to keep using the old tables for already installed > virtual machines.
Maybe you can handle this using machine type versioning. Installed guests would use the old type. -- MST
