Re: [Xen-devel] [PATCH] xen/arm: Scrub heap pages during boot

[Julien Grall <julien.grall@xxxxxxxxxx>]

On 01/10/2014 05:51 PM, Ian Campbell wrote:
> On Fri, 2014-01-10 at 17:09 +0000, Ian Campbell wrote:
>> On Fri, 2014-01-10 at 13:48 +0000, Julien Grall wrote:
>>>
>>> On 01/10/2014 09:52 AM, Ian Campbell wrote:
>>>> On Fri, 2014-01-10 at 03:27 +0000, Julien Grall wrote:
>>>>> Scrub heap pages was disabled because it was slow on the models. Now that 
>>>>> Xen
>>>>> supports real hardware, it's possible to enable by default scrubbing.
>>>>>
>>>>> Signed-off-by: Julien Grall <julien.grall@xxxxxxxxxx>
>>>>
>>>> Acked-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
>>>
>>> Thanks.
>>
>> Applied.
>>
>>>>> ---
>>>>>      This patch should go to Xen 4.4. It avoid to give non-cleared page to
>>>>>      a domain.
>>>>>
>>>>>      The downside is it's now slow on models.
>>>>
>>>> There is a no-bootscrub command-line option which can be used in that
>>>> case. Could you update the relevant model wiki pages to mention it
>>>> please?
>>>
>>> I have updated the wiki page.
>>
>> Thanks.
> 
> You made it say "comment out the code" rather than advising to use the
> command line option like I suggested -- was that on purpose?
> 
> Is something broken with the command line option?

No, I thought we will need to create a command line. I will update the
wiki page.

-- 
Julien Grall

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