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From: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
To: Avi Kivity <avi@redhat.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>,
	LKML <linux-kernel@vger.kernel.org>, KVM <kvm@vger.kernel.org>
Subject: [PATCH v3 0/7] KVM: MMU: fix release pfn in mmu code
Date: Fri, 21 Sep 2012 14:56:40 +0800	[thread overview]
Message-ID: <505C0FA8.5070007@linux.vnet.ibm.com> (raw)

Changlog:
changes from Avi's comments:
 - comment for FNAME(fetch)
 - add annotations (__acquires, __releases) for page_fault_start and
   page_fault_end

changes from Marcelo's comments:
 - remove mmu_is_invalid
 - make release noslot pfn path more readable

The last patch which introduces page_fault_start and page_fault_end is
controversial, i hope we can try it since it wrap the ugly pfn release
path up, but i respect your idea. :)

Release pfn in the mmu code is little special for we allow no-slot pfn
go to spte walk on page fault path, that means, on page fault fail path,
we can not directly call kvm_release_pfn_clean.

This patchset fixes the bug which release no-slot pfn on fail path and
clean up all the paths where kvm_release_pfn_clean is called

             reply	other threads:[~2012-09-21  6:56 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-09-21  6:56 Xiao Guangrong [this message]
2012-09-21  6:57 ` [PATCH v3 1/7] KVM: MMU: fix release noslot pfn Xiao Guangrong
2012-09-23  9:13   ` Gleb Natapov
2012-09-24  4:59     ` Xiao Guangrong
2012-09-24 11:24       ` Gleb Natapov
2012-09-24 11:49         ` Xiao Guangrong
2012-09-24 12:04           ` Gleb Natapov
2012-09-24 12:32             ` Xiao Guangrong
2012-09-27 16:25               ` Avi Kivity
2012-09-21  6:57 ` [PATCH v3 2/7] KVM: MMU: remove mmu_is_invalid Xiao Guangrong
2012-09-21  6:58 ` [PATCH v3 3/7] KVM: MMU: do not release pfn in mmu_set_spte Xiao Guangrong
2012-09-21  6:58 ` [PATCH v3 4/7] KVM: MMU: cleanup FNAME(page_fault) Xiao Guangrong
2012-09-21  6:59 ` [PATCH v3 5/7] KVM: MMU: introduce FNAME(prefetch_gpte) Xiao Guangrong
2012-09-21  6:59 ` [PATCH v3 6/7] KVM: MMU: move prefetch_invalid_gpte out of pagaing_tmp.h Xiao Guangrong
2012-09-21  7:00 ` [PATCH v3 7/7] KVM: MMU: introduce page_fault_start/page_fault_end Xiao Guangrong

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