From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753921AbcCMD0z (ORCPT ); Sat, 12 Mar 2016 22:26:55 -0500 Received: from mga11.intel.com ([192.55.52.93]:7335 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751304AbcCMD0t (ORCPT ); Sat, 12 Mar 2016 22:26:49 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.24,328,1455004800"; d="scan'208";a="932537656" From: Lan Tianyu To: pbonzini@redhat.com, guangrong.xiao@linux.intel.com, agraf@suse.com, benh@kernel.crashing.org, gleb@kernel.org, hpa@zytor.com, kvm-ppc@vger.kernel.org, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, mingo@redhat.com, mpe@ellerman.id.au, paulus@samba.org, tglx@linutronix.de, x86@kernel.org Cc: Lan Tianyu Subject: [PATCH 0/7] KVM/X86/PPC: Clear up kvm mmu memory barriers and update related comments Date: Sun, 13 Mar 2016 11:10:23 +0800 Message-Id: <1457838631-26775-1-git-send-email-tianyu.lan@intel.com> X-Mailer: git-send-email 1.7.9.5 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This series is to clear up kvm mmu memory barriers. 1) Remove redundant barrier (PATCH 1) 2) Replace origin barrier functions with preferrable ones (PATCH 2, 3, 5) 3) Fix unpaired barriers (PATCH 4) 4) Update or add barrier related comments (PATCH 6, 7) Lan Tianyu (7): KVM: Remove redundant smp_mb() in the kvm_mmu_commit_zap_page() KVM/x86: Replace smp_mb() with smp_store_mb/release() in the walk_shadow_page_lockless_begin/end() KVM: Replace smp_mb() with smp_mb_after_atomic() in the kvm_make_all_cpus_request() KVM/x86: Call smp_wmb() before increasing tlbs_dirty KVM: Replace smp_mb() with smp_load_acquire() in the kvm_flush_remote_tlbs() KVM/x86: update the comment of memory barrier in the vcpu_enter_guest() KVM/PPC: update the comment of memory barrier in the kvmppc_prepare_to_enter() arch/powerpc/kvm/powerpc.c | 3 +++ arch/x86/kvm/mmu.c | 23 ++++++++++------------- arch/x86/kvm/paging_tmpl.h | 11 +++++++++++ arch/x86/kvm/x86.c | 8 ++++++-- virt/kvm/kvm_main.c | 22 ++++++++++++++++++---- 5 files changed, 48 insertions(+), 19 deletions(-) -- 1.8.4.rc0.1.g8f6a3e5.dirty