Re: [Xen-devel] [PATCH V4 1/3] x86/altp2m: propagate ept.ad changes to all active altp2ms

[Razvan Cojocaru <rcojocaru@xxxxxxxxxxxxxxx>]

On 11/8/18 6:56 PM, George Dunlap wrote:
> On 11/01/2018 02:45 PM, Razvan Cojocaru wrote:
>> 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.
>> 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>
> 
> Sorry for the delay:
> 
> Acked-by: George Dunlap <george.dunlap@xxxxxxxxxx>

Thanks!


Much appreciated,
Razvan

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