Re: [Xen-devel] [PATCH V5 1/3] x86/altp2m: propagate ept.ad changes to all active altp2ms

[Razvan Cojocaru <rcojocaru@xxxxxxxxxxxxxxx>]

On 11/14/18 7:44 AM, Tian, Kevin wrote:
>> From: Razvan Cojocaru [mailto:rcojocaru@xxxxxxxxxxxxxxx]
>> Sent: Sunday, November 11, 2018 10:07 PM
>>
>> This patch is a pre-requisite for fixing the logdirty VGA issue
>> (display freezes when switching to a new altp2m view early in a
>> domain's lifetime), but sent separately for easier review.
> 
> it's in the series now, instead of sending separately.

Right, sorry for that omission - although now with your Reviewed-by it
can be applied now and escape the series. :)

>> The new ept_set_ad_sync() function has been added to update all
>> active altp2ms' ept.ad. New altp2ms will inherit the hostp2m's
>> ept.ad value.
>>
>> The p2m_{en,dis}able_hardware_log_dirty() hostp2m locking has
>> been moved to the new ept_{en,dis}able_hardware_log_dirty()
>> functions as part of the code refactoring, while locks for the
>> individual altp2ms are taken in ept_set_ad_sync() (called by
>> ept_{en,dis}able_pml()).
>>
>> Signed-off-by: Razvan Cojocaru <rcojocaru@xxxxxxxxxxxxxxx>
>> Suggested-by: George Dunlap <george.dunlap@xxxxxxxxxx>
>> Tested-by: Tamas K Lengyel <tamas@xxxxxxxxxxxxx>
>> Acked-by: George Dunlap <george.dunlap@xxxxxxxxxx>
> 
> Reviewed-by: Kevin Tian <kevin.tian@xxxxxxxxx>


Thanks,
Razvan

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