On Wed, Jul 31, 2013 at 09:58:58PM +0100, Matthew Garrett wrote: > On Wed, Jul 31, 2013 at 10:54:31PM +0200, Borislav Petkov wrote: > > > efi: mem08: type=7, attr=0xf, range=[0x0000000040000000-0x000000007c000000) (960MB) > > efi: mem09: type=4, attr=0xf, range=[0x000000007c000000-0x000000007c020000) (0MB) > > efi: mem10: type=7, attr=0xf, range=[0x000000007c020000-0x000000007e0ad000) (32MB) > > -efi: mem11: type=4, attr=0xf, range=[0x000000007e0ad000-0x000000007e0cc000) (0MB) > > +efi: mem11: type=4, attr=0xf, range=[0x000000007e0ad000-0x000000007e0ad000) (0MB) > > efi: mem12: type=7, attr=0xf, range=[0x000000007e0cc000-0x000000007e0cd000) (0MB) > > efi: mem13: type=4, attr=0xf, range=[0x000000007e0cd000-0x000000007e55d000) (4MB) > > efi: mem14: type=3, attr=0xf, range=[0x000000007e55d000-0x000000007e59c000) (0MB) > > Are we making any EFI calls in between? Probably. > I certainly wouldn't expect the memory map to change after > ExitBootServices, but up until that point the firmware's free to mess > with it. Well, we call ExitBootServices pretty early in exit_boot(). But the problem is, something messes up the upper boundary of the region and it is an EFI_BOOT_SERVICES_DATA region which we need for the runtime services mapping and if we can't map it properly, we're probably going to miss functionality or not have runtime at all. I hope this is an edk2 only bug. Btw, I'm not running the latest version so the hope that it could've been fixed in the meantime is not dead yet. :) -- Regards/Gruss, Boris. Sent from a fat crate under my desk. Formatting is fine. -- -- 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