From: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
To: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Avi Kivity <avi@redhat.com>, LKML <linux-kernel@vger.kernel.org>,
KVM <kvm@vger.kernel.org>
Subject: Re: [PATCH v2 1/5] KVM: MMU: release noslot pfn on the fail path properly
Date: Tue, 18 Sep 2012 15:46:12 +0800 [thread overview]
Message-ID: <505826C4.2050704@linux.vnet.ibm.com> (raw)
In-Reply-To: <20120915151338.GA3037@amt.cnet>
On 09/15/2012 11:13 PM, Marcelo Tosatti wrote:
> On Fri, Sep 14, 2012 at 05:57:22PM +0800, Xiao Guangrong wrote:
>> We can not directly call kvm_release_pfn_clean to release the pfn
>> since we can meet noslot pfn which is used to cache mmio info into
>> spte
>>
>> Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
>> ---
>> arch/x86/kvm/mmu.c | 6 ++++--
>> arch/x86/kvm/paging_tmpl.h | 6 ++++--
>> 2 files changed, 8 insertions(+), 4 deletions(-)
>
> Its clearer to the reader if is_invalid_pfn() is used instead of
> is_error_pfn.
>
> BTW how about killing this unused helper
>
> static bool mmu_invalid_pfn(pfn_t pfn)
> {
> return unlikely(is_invalid_pfn(pfn));
> }
>
> This can be done inlined.
Okay, will do. Thanks Marcelo!
next prev parent reply other threads:[~2012-09-18 7:46 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-14 9:56 [PATCH v2 0/5] KVM: MMU: fix release pfn in mmu code Xiao Guangrong
2012-09-14 9:57 ` [PATCH v2 1/5] KVM: MMU: release noslot pfn on the fail path properly Xiao Guangrong
2012-09-15 15:13 ` Marcelo Tosatti
2012-09-18 7:46 ` Xiao Guangrong [this message]
2012-09-14 9:57 ` [PATCH v2 2/5] KVM: MMU: do not release pfn in mmu_set_spte Xiao Guangrong
2012-09-14 9:58 ` [PATCH v2 3/5] KVM: MMU: cleanup FNAME(page_fault) Xiao Guangrong
2012-09-20 10:54 ` Avi Kivity
2012-09-14 9:59 ` [PATCH v2 4/5] KVM: MMU: introduce page_fault_start and page_fault_end Xiao Guangrong
2012-09-15 15:25 ` Marcelo Tosatti
2012-09-18 8:15 ` Xiao Guangrong
2012-09-18 23:43 ` Marcelo Tosatti
2012-09-20 2:59 ` Xiao Guangrong
2012-09-20 10:57 ` Avi Kivity
2012-09-14 9:59 ` [PATCH v2 5/5] KVM: MMU: introduce FNAME(prefetch_gpte) Xiao Guangrong
2012-09-14 10:13 ` Xiao Guangrong
2012-09-15 15:31 ` Marcelo Tosatti
2012-09-18 8:26 ` Xiao Guangrong
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