Messages in this thread | | | From | (Eric W. Biederman) | Subject | Re: [PATCH 0/3] x86_64 EFI runtime service support | Date | Sun, 19 Aug 2007 16:27:06 -0600 |
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"H. Peter Anvin" <hpa@zytor.com> writes:
> Huang, Ying wrote: >> >> One question: >> >> The boot_params.efi_info.efi_systab is defined as u32. But it should be >> u64 on x86_64, because it comes from firmware and is not controlled by >> bootloader. But, changing it from u32 to u64 will break current i386 EFI >> support, should we change it and fix the i386 EFI bootloader? >> > > The other option is to have a union of a 32-bit and a 64-bit structure. > I personally don't care, as long as it's consistent, but I think you > need to deal with the people working on EFI currently about that...
It sounds like the 64bit EFI is currently binary incompatible with the 32bit EFI.
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