Re: [Qemu-devel] [PATCH 2/4] KVM: MMU: introduce possible_writable_spte_bitmap

2019-01-17 Thread Sean Christopherson
On Thu, Jan 17, 2019 at 01:55:29PM +, Zhuangyanying wrote: > From: Xiao Guangrong > > It is used to track possible writable sptes on the shadow page on > which the bit is set to 1 for the sptes that are already writable > or can be locklessly updated to writable on the fast_page_fault > path,

[Qemu-devel] [PATCH 2/4] KVM: MMU: introduce possible_writable_spte_bitmap

2019-01-17 Thread Zhuangyanying
From: Xiao Guangrong It is used to track possible writable sptes on the shadow page on which the bit is set to 1 for the sptes that are already writable or can be locklessly updated to writable on the fast_page_fault path, also a counter for the number of possible writable sptes is introduced to