[Xen-devel] Arch dependent tools/libxc?

["Tian, Kevin" <kevin.tian@xxxxxxxxx>]

Hi, list,
        When trying to add support for multiple domains on IPF/VTI,
immediately we realized current tools/libxc too x86 specific, like
xc_linux_build.c, xc_linux_save.c, etc. which are always compiled
assumed upon x86 vcpu_guest_context_t. Ideally they should only be
compiled upon specific platform.

        One solution is to add bunch of boring "ifdef __x86_32... ifdef
__ia64__" in Makefile, which however gonna pollute many places. Since
tools/libxc is the place coupled with arch context most tightly, a
better option may be to move those files into arch dependent directory
like tools/libxc/{x86, ia64, etc}:
Xc_linux_build.c
Xc_plan9_build.c
Xc_vmx_build.c
Xc_linux_save.c
Xc_linux_restore.c
Xc_ptrace.c 
Xc_ptrace_core.c
And some header files like linux_boot_params.h

        A brief search seems to indicate most directories under tools
are high level, common features, which can go first option when demand.
"Misc" directory is bit of problem, which can easily handled by similar
way as libxc.

        Comments? ;-)

Thanks,
Kevin

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