From patchwork Thu Apr 1 08:50:45 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xiao Guangrong X-Patchwork-Id: 90094 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter.kernel.org (8.14.3/8.14.3) with ESMTP id o318rVXQ007745 for ; Thu, 1 Apr 2010 08:53:31 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754542Ab0DAIx1 (ORCPT ); Thu, 1 Apr 2010 04:53:27 -0400 Received: from cn.fujitsu.com ([222.73.24.84]:57904 "EHLO song.cn.fujitsu.com" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1754493Ab0DAIxZ (ORCPT ); Thu, 1 Apr 2010 04:53:25 -0400 Received: from tang.cn.fujitsu.com (tang.cn.fujitsu.com [10.167.250.3]) by song.cn.fujitsu.com (Postfix) with ESMTP id 7119D170123; Thu, 1 Apr 2010 16:53:23 +0800 (CST) Received: from fnst.cn.fujitsu.com (tang.cn.fujitsu.com [127.0.0.1]) by tang.cn.fujitsu.com (8.14.3/8.13.1) with ESMTP id o318pwvR027956; Thu, 1 Apr 2010 16:51:58 +0800 Received: from [10.167.141.99] (unknown [10.167.141.99]) by fnst.cn.fujitsu.com (Postfix) with ESMTPA id BA43FD498A; Thu, 1 Apr 2010 16:55:47 +0800 (CST) Message-ID: <4BB45E65.2040006@cn.fujitsu.com> Date: Thu, 01 Apr 2010 16:50:45 +0800 From: Xiao Guangrong User-Agent: Thunderbird 2.0.0.6 (Windows/20070728) MIME-Version: 1.0 To: Avi Kivity CC: Marcelo Tosatti , KVM list , LKML Subject: [PATCH 1/2] KVM MMU: cleanup/fix mmu audit code Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.3 (demeter.kernel.org [140.211.167.41]); Thu, 01 Apr 2010 08:53:33 +0000 (UTC) diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index d7700bb..5de92ae 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -3178,8 +3178,7 @@ static gva_t canonicalize(gva_t gva) } -typedef void (*inspect_spte_fn) (struct kvm *kvm, struct kvm_mmu_page *sp, - u64 *sptep); +typedef void (*inspect_spte_fn) (struct kvm *kvm, u64 *sptep); static void __mmu_spte_walk(struct kvm *kvm, struct kvm_mmu_page *sp, inspect_spte_fn fn) @@ -3195,7 +3194,7 @@ static void __mmu_spte_walk(struct kvm *kvm, struct kvm_mmu_page *sp, child = page_header(ent & PT64_BASE_ADDR_MASK); __mmu_spte_walk(kvm, child, fn); } else - fn(kvm, sp, &sp->spt[i]); + fn(kvm, &sp->spt[i]); } } } @@ -3286,6 +3285,8 @@ static void audit_mappings(struct kvm_vcpu *vcpu) static int count_rmaps(struct kvm_vcpu *vcpu) { + struct kvm *kvm = vcpu->kvm; + struct kvm_memslots *slots; int nmaps = 0; int i, j, k, idx; @@ -3319,7 +3320,7 @@ static int count_rmaps(struct kvm_vcpu *vcpu) return nmaps; } -void inspect_spte_has_rmap(struct kvm *kvm, struct kvm_mmu_page *sp, u64 *sptep) +void inspect_spte_has_rmap(struct kvm *kvm, u64 *sptep) { unsigned long *rmapp; struct kvm_mmu_page *rev_sp; @@ -3335,14 +3336,14 @@ void inspect_spte_has_rmap(struct kvm *kvm, struct kvm_mmu_page *sp, u64 *sptep) printk(KERN_ERR "%s: no memslot for gfn %ld\n", audit_msg, gfn); printk(KERN_ERR "%s: index %ld of sp (gfn=%lx)\n", - audit_msg, sptep - rev_sp->spt, + audit_msg, (long int)(sptep - rev_sp->spt), rev_sp->gfn); dump_stack(); return; } rmapp = gfn_to_rmap(kvm, rev_sp->gfns[sptep - rev_sp->spt], - is_large_pte(*sptep)); + rev_sp->role.level); if (!*rmapp) { if (!printk_ratelimit()) return; @@ -3377,7 +3378,7 @@ static void check_writable_mappings_rmap(struct kvm_vcpu *vcpu) continue; if (!(ent & PT_WRITABLE_MASK)) continue; - inspect_spte_has_rmap(vcpu->kvm, sp, &pt[i]); + inspect_spte_has_rmap(vcpu->kvm, &pt[i]); } } return;