* Jan Beulich <JBeulich@xxxxxxxx> wrote: > >>> On 08.12.17 at 08:16, <mingo@xxxxxxxxxx> wrote: > > Also, a more fundamental question: why doesn't Xen use EFI to hand over > > hardware configuration details? > > Iirc the main purpose of the change here is to allow booting PVH > (guest or Dom0) with Grub2 in the middle. PVH, at least for the > time being, is something that gets away without any firmware > (and I'm pretty certain this is going to remain that way for Dom0). > ACPI tables are being built by the tool stack (guest) or hypervisor > (Dom0). Hence there simply isn't any EFI which could be used to > propagate such information. Ok, that's fair enough. If hpa (or someone else) doesn't object to the boot protocol extension this approach looks good to me in principle. Thanks, Ingo -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html