From: Marcelo Tosatti <mtosatti@redhat.com>
To: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Cc: gleb@redhat.com, avi.kivity@gmail.com,
linux-kernel@vger.kernel.org, kvm@vger.kernel.org
Subject: Re: [PATCH v3 15/15] KVM: MMU: replace kvm_zap_all with kvm_mmu_invalid_all_pages
Date: Wed, 17 Apr 2013 21:08:12 -0300 [thread overview]
Message-ID: <20130418000812.GF31059@amt.cnet> (raw)
In-Reply-To: <1366093973-2617-16-git-send-email-xiaoguangrong@linux.vnet.ibm.com>
On Tue, Apr 16, 2013 at 02:32:53PM +0800, Xiao Guangrong wrote:
> Use kvm_mmu_invalid_all_pages in kvm_arch_flush_shadow_all and
> rename kvm_zap_all to kvm_free_all which is used to free all
> memmory used by kvm mmu when vm is being destroyed, at this time,
> no vcpu exists and mmu-notify has been unregistered, so we can
> free the shadow pages out of mmu-lock
Since there is no contention for mmu-lock its also not a problem to
grab the lock right?
Automated verification of locking/srcu might complain.
next prev parent reply other threads:[~2013-04-18 2:39 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-16 6:32 [PATCH v3 00/15] KVM: MMU: fast zap all shadow pages Xiao Guangrong
2013-04-16 6:32 ` [PATCH v3 01/15] KVM: x86: clean up and optimize for kvm_arch_free_memslot Xiao Guangrong
2013-04-16 6:32 ` [PATCH v3 02/15] KVM: fold kvm_arch_create_memslot into kvm_arch_prepare_memory_region Xiao Guangrong
2013-04-16 6:32 ` [PATCH v3 03/15] KVM: x86: do not reuse rmap when memslot is moved Xiao Guangrong
2013-04-16 6:32 ` [PATCH v3 04/15] KVM: MMU: abstract memslot rmap related operations Xiao Guangrong
2013-04-16 6:32 ` [PATCH v3 05/15] KVM: MMU: allow per-rmap operations Xiao Guangrong
2013-04-16 6:32 ` [PATCH v3 06/15] KVM: MMU: allow concurrently clearing spte on remove-only pte-list Xiao Guangrong
2013-04-16 6:32 ` [PATCH v3 07/15] KVM: MMU: introduce invalid rmap handlers Xiao Guangrong
2013-04-17 23:38 ` Marcelo Tosatti
2013-04-18 3:15 ` Xiao Guangrong
2013-04-16 6:32 ` [PATCH v3 08/15] KVM: MMU: allow unmap invalid rmap out of mmu-lock Xiao Guangrong
2013-04-18 11:00 ` Gleb Natapov
2013-04-18 11:22 ` Xiao Guangrong
2013-04-18 11:38 ` Gleb Natapov
2013-04-18 12:10 ` Xiao Guangrong
2013-04-16 6:32 ` [PATCH v3 09/15] KVM: MMU: introduce free_meslot_rmap_desc_nolock Xiao Guangrong
2013-04-16 6:32 ` [PATCH v3 10/15] KVM: x86: introduce memslot_set_lpage_disallowed Xiao Guangrong
2013-04-16 6:32 ` [PATCH v3 11/15] KVM: MMU: introduce kvm_clear_all_lpage_info Xiao Guangrong
2013-04-16 6:32 ` [PATCH v3 12/15] KVM: MMU: fast invalid all shadow pages Xiao Guangrong
2013-04-18 0:05 ` Marcelo Tosatti
2013-04-18 4:00 ` Xiao Guangrong
2013-04-18 13:03 ` Marcelo Tosatti
2013-04-18 13:29 ` Marcelo Tosatti
2013-04-18 15:20 ` Xiao Guangrong
2013-04-16 6:32 ` [PATCH v3 13/15] KVM: x86: use the fast way to invalid all pages Xiao Guangrong
2013-04-16 6:32 ` [PATCH v3 14/15] KVM: move srcu_read_lock/srcu_read_unlock to arch-specified code Xiao Guangrong
2013-04-16 6:32 ` [PATCH v3 15/15] KVM: MMU: replace kvm_zap_all with kvm_mmu_invalid_all_pages Xiao Guangrong
2013-04-18 0:08 ` Marcelo Tosatti [this message]
2013-04-18 4:03 ` Xiao Guangrong
2013-04-20 17:18 ` Marcelo Tosatti
2013-04-21 6:59 ` Xiao Guangrong
2013-04-21 13:03 ` [PATCH v3 00/15] KVM: MMU: fast zap all shadow pages Gleb Natapov
2013-04-21 14:09 ` Xiao Guangrong
2013-04-21 15:24 ` Marcelo Tosatti
2013-04-22 2:50 ` Xiao Guangrong
2013-04-22 9:21 ` Gleb Natapov
2013-04-23 0:19 ` Xiao Guangrong
2013-04-23 6:28 ` Gleb Natapov
2013-04-23 7:20 ` Xiao Guangrong
2013-04-23 7:33 ` Gleb Natapov
2013-04-21 15:27 ` Marcelo Tosatti
2013-04-21 15:35 ` Marcelo Tosatti
2013-04-22 12:39 ` Gleb Natapov
2013-04-22 13:45 ` Takuya Yoshikawa
2013-04-22 23:02 ` Marcelo Tosatti
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20130418000812.GF31059@amt.cnet \
--to=mtosatti@redhat.com \
--cc=avi.kivity@gmail.com \
--cc=gleb@redhat.com \
--cc=kvm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=xiaoguangrong@linux.vnet.ibm.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox