On 08/13/2013 11:43 AM, James Bottomley wrote: >> James, does this address your concerns? > > You mean for globally enabling CONFIG_EFI on x86? not really for 32 > bit, you say above it's pretty much unusable; I'd prefer just to enable > it for 64 bit. As you said in your original post "since EFI now is a > significant percentage of all systems" but you actually mean EFI64 ... > EFI32 is a pretty insignificant percentage of all systems. For better or worse, there will be more. > Can we actually boot a 32 bit kernel on an EFI64 system? The last time > I tried on my Secure Boot SDV it wouldn't work; the problem is getting > someting in the transfer of control path to boot the processor back to > 32 bit mode. We can boot with a bootloader in "skip stub" mode; no runtime services yet. We are working on making it possible to boot via a EFI stub in assisted mode (still needing a bootloader, but with the boot stub in the kernel.) Runtime services will be the last piece, obviously, but even that looks reasonably doable. -hpa -- To unsubscribe from this list: send the line "unsubscribe linux-efi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
