Messages in this thread | | | Date | Fri, 13 Apr 2012 18:26:52 +0800 | From | Xiao Guangrong <> | Subject | Re: [PATCH 08/13] KVM: MMU: fask check whether page is writable |
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On 04/13/2012 07:08 AM, Marcelo Tosatti wrote:
>> Yes, it is used as a cache for mmu_need_write_protect. >> >> When the gfn is protected by sync sp or read-only host page we set this bit, >> and it is be cleared when the sp become unsync or host page becomes writable. > > Wouldnt dropping support for shadow entirely make it much simpler? > > The idea to handle RO->RW without mmu_lock is very neat, but the > complexity with shadow is horrible. >
I have posted the v2 that is fairly simple, please review that one. :) Thank you, Marcelo!
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