Re: [PATCH v2 0/4] xen: enable EPT A/D bit feature

[Keir Fraser <keir.xen@gmail.com>]

Review will probably come from Tim Deegan. There's no rush as it is too late
for 4.2 now.

 -- Keir

On 25/06/2012 07:27, "Hao, Xudong" <xudong.hao@intel.com> wrote:

> Hi, Keir and Jan
> 
> Any other comments for this series of patches?
> 
> Thanks,
> -Xudong
> 
> 
>> -----Original Message-----
>> From: Hao, Xudong
>> Sent: Wednesday, June 20, 2012 9:58 AM
>> To: xen-devel@lists.xen.org
>> Cc: JBeulich@suse.com; keir@xen.org; Zhang, Xiantao; Shan, Haitao; Hao,
>> Xudong
>> Subject: [PATCH v2 0/4] xen: enable EPT A/D bit feature
>> 
>> Changes from v1:
>> - Move hap_has_dirty_bit and hap_has_access_bit definition from patch 3 to
>> patch2.
>> - define them as bool_t instead of int.
>> 
>> Extended Page Tables introduce two bit: access bit and dirty bit, A/D bits
>> enable VMMs to efficiently implement memory management and page
>> classification
>> algorithms to optimize VM memory operations.
>> 
>> This series of patches enable EPT dirty bit feature for guest live migration.
>> 
>> PATCH 1/4: Add EPT A/D bits definitions.
>> 
>> PATCH 2/4: Add xen parameter to control A/D bits support, it on by default.
>> 
>> PATCH 3/4: Introduce a log_dirty new function update_dirty_bitmap, which will
>> only update the log dirty bitmap, but won't clear the EPT page dirty bit.
>> The function is used by live migration peek round with EPT D bit supported.
>> 
>> PATCH 4/4: enable EPT dirty bit for guest live migration.
>