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Re: [Xen-devel] 32/64-bit hypercall interface




Hi,


I think the Linux kernel folks learned the "unsigned long" lesson too late, and now there is quite a lot of fixup code to convert 32-bit userspace structs to 64-bit kernel structs (have a look at linux/fs/compat_ioctl.c and compat.c). It seems a shame to repeat the same mistakes in Xen...

Quick question.... What is this "'unsigned long' lesson" you are refering to?

-- David

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