Messages in this thread |  | | Date | Thu, 1 Feb 2007 09:10:10 +0100 | From | "Frederic Riss" <> | Subject | Re: [PATCH] EFI x86: pass firmware call parameters on the stack |
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2007/2/1, bibo,mao <bibo_mao@linux.intel.com>: > currently x86_64 kernel does not support efi, efi convention comply to > MS convention. On ia32 parameter is passed on stack, on x86_64 parameter > is passed by registers but that is different from x86_64 linux convention.
Is an x86_64 EFI firmware required to have 2 entry points, one x86_64 and one in ia32 mode ? If that's not the case, it means that an i386 kernel won't be able to work correctly on an EFI powered x86_64 box...
> How about adding EFIAPI prefix before efi runtime service function, this > prefix has different definition in different architecture.
Have you any objection to the second patch I posted? It's not only a matter of passing arguments, ia64 does quite a lot of things in its wrapper functions. I can easily imagine that such additional work could be added in the i386 wrappers if EFI becomes more widely used. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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