Re: [Xen-devel] [PATCH RFC XEN v1 10/14] tools: Switch a few CONFIG_MIGRATE features to CONFIG_X86

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

On 09/12/15 14:32, Ian Campbell wrote:
> offline_page and compression are under a CONFIG_MIGRATE (out of
> context) and along with xen-hptool these seem to rely on features
> currently implemented only on x86.
>
> I am shortly going to be enabling CONFIG_MIGRATE for ARM, but these
> features are not yet available there.
>
> I'm not sure if these are intrinsically x86 or if they deserve their
> own options.
>
> Signed-off-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
> Cc: andyhhp
> ---
> xc_compression.c seems to actually be unused, possibly since migration
> v2, perhaps pending colo?

Yes - migration v2 didn't add the page compression support.

I should have included this in the "Areas for improvement" in the
feature document.

xc_offline_page has nothing to do with migration, although it used to
share some infrastructure, which I suspect is why the two are linked.

xen-hptool (which I keep on mistaking for a brand of hardware vendor) is
a command line utility which uses some of xc_offline_page.c

~Andrew

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