From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Subject: [PATCH 1/5] KVM: MMU: Rearrange struct kvm_mmu_page Date: Mon, 26 Apr 2010 11:48:39 +0300 Message-ID: <1272271723-9070-2-git-send-email-avi@redhat.com> References: <1272271723-9070-1-git-send-email-avi@redhat.com> Cc: kvm@vger.kernel.org To: Marcelo Tosatti Return-path: Received: from mx1.redhat.com ([209.132.183.28]:50547 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751085Ab0DZIsp (ORCPT ); Mon, 26 Apr 2010 04:48:45 -0400 Received: from int-mx03.intmail.prod.int.phx2.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.16]) by mx1.redhat.com (8.13.8/8.13.8) with ESMTP id o3Q8mino006974 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Mon, 26 Apr 2010 04:48:44 -0400 Received: from cleopatra.tlv.redhat.com (cleopatra.tlv.redhat.com [10.35.255.11]) by int-mx03.intmail.prod.int.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id o3Q8mhif027580 for ; Mon, 26 Apr 2010 04:48:44 -0400 In-Reply-To: <1272271723-9070-1-git-send-email-avi@redhat.com> Sender: kvm-owner@vger.kernel.org List-ID: Put all members required for direct pages together, to reduce cache footprint for those pages. Signed-off-by: Avi Kivity --- arch/x86/include/asm/kvm_host.h | 15 ++++++++------- 1 files changed, 8 insertions(+), 7 deletions(-) diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 3f0007b..cdaaedc 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -192,6 +192,13 @@ struct kvm_mmu_page { */ gfn_t gfn; union kvm_mmu_page_role role; + int root_count; /* Currently serving as active root */ + bool multimapped; /* More than one parent_pte? */ + bool unsync; + union { + u64 *parent_pte; /* !multimapped */ + struct hlist_head parent_ptes; /* multimapped, kvm_pte_chain */ + }; u64 *spt; /* hold the gfn of each spte inside spt */ @@ -201,14 +208,8 @@ struct kvm_mmu_page { * in this shadow page. */ DECLARE_BITMAP(slot_bitmap, KVM_MEMORY_SLOTS + KVM_PRIVATE_MEM_SLOTS); - bool multimapped; /* More than one parent_pte? */ - bool unsync; - int root_count; /* Currently serving as active root */ + unsigned int unsync_children; - union { - u64 *parent_pte; /* !multimapped */ - struct hlist_head parent_ptes; /* multimapped, kvm_pte_chain */ - }; DECLARE_BITMAP(unsync_child_bitmap, 512); }; -- 1.7.0.4