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xen-devel
Re: [Xen-devel] [PATCH 6/7, RFC] x86_64: basic changes for supporting co
Hi,
> If we do 32-bit dom0 kernel then the tools will pick up the 32-bit version
> of that structure. So this is only an issue for userspace if we want 64-bit
> dom0 to be able to build 32-bit domU's. I suppose this would be nice to
> have.
I think we certainly want to have that. I'd suggest to have a look at
my kexec bits:
http://www.suse.de/~kraxel/xen/kexec.html
http://www.suse.de/~kraxel/patches/
They include a largely rewritten domain builder, adding support for
loading both 32bit and 64bit kernels with the 64bit tools should be easy.
> Obvious thing to do is suffix all the structs and defns in arch-x86_foo.h
> with _32 or _64 as appropriate. Then, at the end of the header, we define
> the non-suffixed versions only if defined(__i386__) or __defined__(x86_64)
> (as appropriate).
I'd suggest to suffix them with $arch instead, so we have the option to
handle even ia64 on x86 machines.
cheers,
Gerd
--
Gerd Hoffmann <kraxel@xxxxxxx>
http://www.suse.de/~kraxel/julika-dora.jpeg
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