On Wed, 16 May 2012 12:21:53 +0300 Avi Kivity <avi@xxxxxxxxxx> wrote: > On 05/16/2012 04:04 AM, Xudong Hao wrote: > > EPT A/D bits enable VMMs to efficiently implement memory management and page classification algorithms to optimize VM memory operations such as de-fragmentation, paging, live-migration, and check-pointing. > > > > The series of patches enable the EPT access bit in KVM. > > > > PATCH 1: Add EPT A/D bits definition. > > PATCH 2: Add kernel parameter to control EPT A/D bits support, the feature is on by default. > > PATCH 3: Enable EPT A/D bits if supported by turning on relevant bit in EPTP. > > PATCH 4: Enabling Access bit when doing memory swapping. > > > > Minor comment on patch 2, but otherwise looks good. Except for being white space damaged and based on old kvm.git? BTW, we can use this for dirty logging as you suggested. Although we need to traverse each spte from rmap and sync with dirty bitmap, I think it will work well by using with range based GET_DIRTY_LOG to restrict the cost for one call. Thanks, Takuya -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
