From: Paolo Bonzini <pbonzini@redhat.com>
To: linux-kernel@vger.kernel.org, kvm@vger.kernel.org
Cc: yoshikawa_takuya_b1@lab.ntt.co.jp,
guangrong.xiao@linux.intel.com, mtosatti@redhat.com
Subject: [PATCH 00/12] KVM: MMU: cleanup around kvm_sync_page, and a few micro-optimizations
Date: Wed, 24 Feb 2016 14:17:41 +0100 [thread overview]
Message-ID: <1456319873-34182-1-git-send-email-pbonzini@redhat.com> (raw)
This series started from looking at mmu_unsync_walk for the ubsan thread.
Patches 1 and 2 are the result of the discussions in that thread.
Patches 3 to 9 do more cleanups in __kvm_sync_page and its callers.
Among other changes, it removes kvm_sync_page_transient and avoids
duplicate code between __kvm_sync_page and kvm_sync_pages.
I stopped where I had questions about the existing kvm_mmu_get_page
code (see patch 8 for the question). However perhaps more cleanups
are possible, also thanks to Takuya's work on that function and
link_shadow_page.
Patches 10 to 12 are just micro-optimizations.
Guangrong, it would be great if you took a look since you know this part
of KVM very well.
I have tested this series minus patch 9, and it survived installation
of various Linux and Windows guests with EPT disabled. Of course before
committing the patches I will retest with patch 9 included.
Paolo
Paolo Bonzini (11):
KVM: MMU: Fix ubsan warnings
KVM: MMU: introduce kvm_mmu_flush_or_zap
KVM: MMU: move TLB flush out of __kvm_sync_page
KVM: MMU: use kvm_sync_page in kvm_sync_pages
KVM: MMU: cleanup __kvm_sync_page and its callers
KVM: MMU: invert return value of FNAME(sync_page) and *kvm_sync_page*
KVM: MMU: move zap/flush to kvm_mmu_get_page
KVM: MMU: coalesce zapping page after mmu_sync_children
KVM: mark memory barrier with smp_mb__after_atomic
KVM: MMU: simplify last_pte_bitmap
KVM: MMU: micro-optimize gpte_access
Xiao Guangrong (1):
KVM: MMU: check kvm_mmu_pages and mmu_page_path indices
arch/x86/include/asm/kvm_host.h | 6 +-
arch/x86/kvm/mmu.c | 216 ++++++++++++++++++++++------------------
arch/x86/kvm/paging_tmpl.h | 11 +-
virt/kvm/kvm_main.c | 2 +-
4 files changed, 126 insertions(+), 109 deletions(-)
--
1.8.3.1
next reply other threads:[~2016-02-24 13:18 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-24 13:17 Paolo Bonzini [this message]
2016-02-24 13:17 ` [PATCH 01/12] KVM: MMU: Fix ubsan warnings Paolo Bonzini
2016-02-24 13:42 ` Mike Krinkin
2016-02-24 13:43 ` Paolo Bonzini
2016-02-24 13:17 ` [PATCH 02/12] KVM: MMU: check kvm_mmu_pages and mmu_page_path indices Paolo Bonzini
2016-02-24 13:17 ` [PATCH 03/12] KVM: MMU: introduce kvm_mmu_flush_or_zap Paolo Bonzini
2016-02-24 13:17 ` [PATCH 04/12] KVM: MMU: move TLB flush out of __kvm_sync_page Paolo Bonzini
2016-02-24 13:17 ` [PATCH 05/12] KVM: MMU: use kvm_sync_page in kvm_sync_pages Paolo Bonzini
2016-02-24 13:17 ` [PATCH 06/12] KVM: MMU: cleanup __kvm_sync_page and its callers Paolo Bonzini
2016-02-24 13:17 ` [PATCH 07/12] KVM: MMU: invert return value of FNAME(sync_page) and *kvm_sync_page* Paolo Bonzini
2016-02-24 13:17 ` [PATCH 08/12] KVM: MMU: move zap/flush to kvm_mmu_get_page Paolo Bonzini
2016-02-25 7:32 ` Xiao Guangrong
2016-02-25 8:48 ` Paolo Bonzini
2016-02-24 13:17 ` [PATCH 09/12] KVM: MMU: coalesce zapping page after mmu_sync_children Paolo Bonzini
2016-02-25 2:15 ` Takuya Yoshikawa
2016-02-25 7:35 ` Xiao Guangrong
2016-02-25 8:49 ` Paolo Bonzini
2016-02-25 9:10 ` Xiao Guangrong
2016-02-25 9:55 ` Paolo Bonzini
2016-02-25 8:46 ` Paolo Bonzini
2016-02-24 13:17 ` [PATCH 10/12] KVM: mark memory barrier with smp_mb__after_atomic Paolo Bonzini
2016-02-24 13:17 ` [PATCH 11/12] KVM: MMU: simplify last_pte_bitmap Paolo Bonzini
2016-02-24 13:17 ` [PATCH 12/12] KVM: MMU: micro-optimize gpte_access Paolo Bonzini
2016-02-25 8:28 ` [PATCH 00/12] KVM: MMU: cleanup around kvm_sync_page, and a few micro-optimizations Xiao Guangrong
2016-02-25 8:49 ` Paolo Bonzini
2016-03-04 21:43 ` Paolo Bonzini
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