On 03/01/2013 03:07 PM, Borislav Petkov wrote: > > Hmm, yeah, that's nasty. This also means option #2 can go too because > of the fixed addresses. Option #1 is also kinda polluting user address > space so maybe the most elegant one would be #4, AFAICT. > No, it doesn't pollute the user address space, because the EFI BIOS is effectively a process. We *have* to switch cr3 anyway around EFI calls, because BIOSes in the field are known to use physical addresses instead of virtual. If Windows really does map EFI BIOS 1:1 then that explains why, and is probably going to be the stable thing going forward. -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
