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Re: [PATCH 0/2] kvm: clear dirty bitmaps from all overlapping memslots


From: Igor Mammedov
Subject: Re: [PATCH 0/2] kvm: clear dirty bitmaps from all overlapping memslots
Date: Fri, 20 Sep 2019 15:58:51 +0200

On Fri, 20 Sep 2019 20:19:51 +0800
Peter Xu <address@hidden> wrote:

> On Fri, Sep 20, 2019 at 12:21:20PM +0200, Paolo Bonzini wrote:
> > A single ram_addr (representing a host-virtual address) could be aliased
> > to multiple guest physical addresses.  Since the KVM dirty page reporting
> > works on guest physical addresses, we need to clear all of the aliases
> > when a page is migrated, or there is a risk of losing writes to the
> > aliases that were not cleared.  
> 
> (CCing Igor too so Igor would be aware of these changes that might
>  conflict with the recent memslot split work)
> 

Thanks Peter,
I'll rebase on top of this series and do some more testing



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