From: Marcelo Tosatti <mtosatti@redhat.com>
To: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Cc: Avi Kivity <avi@redhat.com>, LKML <linux-kernel@vger.kernel.org>,
KVM <kvm@vger.kernel.org>
Subject: Re: [PATCH 2/8] KVM: MMU: set the dirty bit for the upper shadow page
Date: Mon, 9 Jan 2012 09:30:05 -0200 [thread overview]
Message-ID: <20120109113005.GB5255@amt.cnet> (raw)
In-Reply-To: <4EEB1A00.8090707@linux.vnet.ibm.com>
On Fri, Dec 16, 2011 at 06:14:24PM +0800, Xiao Guangrong wrote:
> Upper page do not need to be tracked the status bit, it is safe to set the
> dirty and let cpu to happily prefetch it
>
> Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
> ---
> arch/x86/kvm/mmu.c | 13 +++++--------
> 1 files changed, 5 insertions(+), 8 deletions(-)
Dirty bit is ignored in non-leaf pagetable entries.
next prev parent reply other threads:[~2012-01-09 11:35 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-16 10:13 [PATCH 0/8] KVM: MMU: reduce the size of shadow page structure and some cleanup Xiao Guangrong
2011-12-16 10:13 ` [PATCH 1/8] KVM: MMU: combine unsync and unsync_children Xiao Guangrong
2011-12-19 2:25 ` Takuya Yoshikawa
2011-12-22 16:06 ` Marcelo Tosatti
2011-12-23 4:11 ` Xiao Guangrong
2012-01-09 11:16 ` Marcelo Tosatti
2012-01-10 4:45 ` Xiao Guangrong
2011-12-16 10:14 ` [PATCH 2/8] KVM: MMU: set the dirty bit for the upper shadow page Xiao Guangrong
2012-01-09 11:30 ` Marcelo Tosatti [this message]
2012-01-10 4:46 ` Xiao Guangrong
2011-12-16 10:15 ` [PATCH 3/8] KVM: MMU: do not add a nonpresent spte to rmaps of its child Xiao Guangrong
2011-12-19 2:39 ` Takuya Yoshikawa
2011-12-19 8:32 ` Avi Kivity
2011-12-16 10:16 ` [PATCH 4/8] KVM: MMU: drop unsync_child_bitmap Xiao Guangrong
2011-12-18 8:59 ` Avi Kivity
2011-12-23 4:04 ` Xiao Guangrong
2011-12-16 10:16 ` [PATCH 5/8] KVM: MMU: optimize walking unsync shadow page Xiao Guangrong
2011-12-16 10:17 ` [PATCH 6/8] KVM: MMU: optimize handing invlpg Xiao Guangrong
2011-12-16 10:18 ` [PATCH 7/8] KVM: MMU: remove the redundant get_written_sptes Xiao Guangrong
2012-01-09 11:33 ` Marcelo Tosatti
2011-12-16 10:18 ` [PATCH 8/8] KVM: MMU: remove PT64_SECOND_AVAIL_BITS_SHIFT Xiao Guangrong
2011-12-18 10:42 ` Avi Kivity
2011-12-23 4:07 ` Xiao Guangrong
2012-01-09 5:04 ` [PATCH 0/8] KVM: MMU: reduce the size of shadow page structure and some cleanup Xiao Guangrong
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