Re: [Xen-devel] [PATCH for-4.10 2/5] tools/dombuilder: Remove clear_page() from xc_dom_boot.c

[Wei Liu <wei.liu2@xxxxxxxxxx>]

On Thu, Oct 05, 2017 at 07:23:40PM +0100, Andrew Cooper wrote:
> pfn 0 is a legitimate (albeit unlikely) frame to use for translated domains,
> so skipping it is wrong.  (This behaviour appears to exists simply to cover
> the fact that zero is the default value of an uninitialised field in dom.)
> 
> ARM already clears the frames at the point that the pfns are allocated,
> meaning that the added clear_page() is wasteful.  Alter x86 to match ARM and
> clear the page when it is allocated.
> 
> Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>

Acked-by: Wei Liu <wei.liu2@xxxxxxxxxx>

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