xen: arm: make p2m operations NOPs

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This makes common code less ifdef-y and is consistent with PVHVM on
x86.

Also note that phys_to_machine_mapping_valid should take a pfn
argument and make it do so.

Add __set_phys_to_machine, make set_phys_to_machine a simple wrapper
(on systems with non-nop implementations the outer one can allocate
new p2m pages).

Make __set_phys_to_machine check for identity mapping or invalid only.

Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

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Ian Campbell 2012-10-17 09:39:17 +01:00 • committed by Konrad Rzeszutek Wilk

parent ee678518eb

commit ee7b5958e2

1 changed files with 10 additions and 3 deletions

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arch/arm/include/asm/xen/page.h

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