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Re: [Xen-devel] [Linaro-uefi] [PATCH] xen: arm: implement generic multiboot compatibility strings (Was: Re: The GRUB multiboot support patch for aarch64(V3.1))

On 06/06/2014 02:31 AM, Ian Campbell wrote:
> On Thu, 2014-06-05 at 18:03 +0100, Julien Grall wrote:
>>>> While we are modifying the protocol, "linux-zImage" is confusing in the
>>>> name. Actually we can use it for an ELF, another OS... I don't think Xen
>>>> will change his behavior depending of the DOM0 image.
> Actually thinking about this some more I think you are right. Xen
> already probes the kernel it gets so we can safely implement this as
> multiboot,kernel, since we don't really need the more specific type. If
> in the future some non-probable kernel comes along which we want to
> support we still have the option of adding more specific compatibility
> strings.
> Fu Wei -- if this is OK with you I will modify the wiki page to
> s/multiboot,linux-zimage/multiboot,kernel/ and rev this patch to suit.

This is OK for me, And I think the "multiboot,kernel" is better and more 
generic. :-)

> Can we do something similar with linux-ramdisk? I'm not sure since we
> cannot easily probe the ramdisk contents. We could base the ramdisk
> behaviour on the probed behaviour of the kernel. Anyone got any
> thoughts?

My thought looks exactly the same as yours :
The cpio utility can detect the cpio file format. Maybe we can just probe the 
file, see if this is a cpio or cpio.gz.

> Ian.

Best regards,

Fu Wei
Enterprise Server Engineer From Red Hat
LEG Team
Linaro.org | Open source software for ARM SoCs
Ph: +86 186 2020 4684 (mobile)
IRC: fuwei
Skype: tekkamanninja
Room 1512, Regus One Corporate Avenue,Level 15,
One Corporate Avenue,222 Hubin Road,Huangpu District,
Shanghai,China 200021 

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