Messages in this thread | | | Date | Thu, 14 May 2015 10:43:43 +0200 | From | Paolo Bonzini <> | Subject | Re: [PATCH v3 09/10] KVM: MMU: fix MTRR update |
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On 14/05/2015 02:16, Wanpeng Li wrote: > >SPTEs are kept around and cached. The "role" field is used as the hash > >key; if the role doesn't change, SPTEs are reused, so you have to zap > >the SPTEs explicitly. > > Btw, why the patch changelog mentioned that the root shadow page will be > reused, I think it will be zapped in mmu_free_roots.
Who has set sp->role.invalid on it? If no one has, it's not zapped and it will be found again in the hash table.
Paolo
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