Re: [PATCH 11/11] KVM: MMU: improve write flooding detected

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On 08/25/2011 05:04 AM, Marcelo Tosatti wrote:
>
>  It could increase the flood count independently of the accessed bit of
>  the spte being updated, zapping after 3 attempts as it is now.
>
>  But additionally reset the flood count if the gpte appears to be valid
>  (points to an existant gfn if the present bit is set, or if its zeroed).

Well not zero, as thats a common pattern for non ptes.


On 32-bit with 4GB RAM, practically anything is a valid gpte.

--
I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.

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