Re: [Xen-devel] [PATCH v1 9/9] mm: Make sure pages are scrubbed

[Wei Liu <wei.liu2@xxxxxxxxxx>]

On Fri, Mar 24, 2017 at 01:05:04PM -0400, Boris Ostrovsky wrote:
> Add a debug Kconfig option that will make page allocator verify
> that pages that were supposed to be scrubbed are, in fact, clean.
> 
> Signed-off-by: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>
> ---
>  xen/Kconfig.debug       |    7 +++++++
>  xen/common/page_alloc.c |   33 +++++++++++++++++++++++++++++++++
>  2 files changed, 40 insertions(+), 0 deletions(-)
> 
> diff --git a/xen/Kconfig.debug b/xen/Kconfig.debug
> index 8139564..35b86ae 100644
> --- a/xen/Kconfig.debug
> +++ b/xen/Kconfig.debug
> @@ -113,6 +113,13 @@ config DEVICE_TREE_DEBUG
>         logged in the Xen ring buffer.
>         If unsure, say N here.
>  
> +config SCRUB_DEBUG
> +       bool "Page scrubbing test"
> +       default y

default debug

> +       ---help---
> +          Verify that pages that need to be scrubbed before being allocated 
> to
> +       a guest are indeed scrubbed.

Indentation.

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