On Thu, 2007-08-02 at 01:16 +0800, Eric W. Biederman wrote: > > The parameters are rearranged, because the pointer is too small. For > > example, the EFI system table pointer is 8 bytes in x86_64, while it > is > > 4 bytes in i386. > > Ok. I see what is happening. When the documentation is for arch/i386 > unsigned long is 4 bytes, and you are using unsigned long to mean 8 > bytes. For an 8 byte fields please just spell out the size as 8 > bytes.
Ok. Will do in the next version. > > How does EFI handle 32bit/64bit compatibility? In particular > how do I load a 32bit kernel on machine with a 64bit EFI? Can > it be done? > Because the EFI memory map is converted to E820 map in bootloader now, it is possible to load 32bit kernel on machine with a 64bit EFI. But it is almost impossible to call EFI runtime service in 32bit kernel. But I think EFI runtime service is not essential in this situation, because the raw hardware can be used too. Best Regards, Huang Ying - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
