Re: [Xen-devel] [PATCH v2] x86/dom0: use MEMF_no_scrub during Dom0 construction

[Roger Pau Monné <roger.pau@xxxxxxxxxx>]

On Wed, Nov 21, 2018 at 02:13:00PM +0000, Sergey Dyasli wrote:
> Now that idle scrub is the default option, all memory is marked as dirty
> and alloc_domheap_pages() will do eager scrubbing by default. This can
> lead to longer Dom0 construction and potentially to a watchdog timeout,
> especially on older H/W (e.g. Harpertown).
> 
> Pass MEMF_no_scrub to optimise this process since there is little point
> in scrubbing memory for Dom0.
> 
> Signed-off-by: Sergey Dyasli <sergey.dyasli@xxxxxxxxxx>

Reviewed-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>

I was considering to suggest to add this flag to dom0_memflags, but
that's cleared under certain conditions, so I don't think it's worth
it.

Thanks.

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