From patchwork Wed Mar 24 20:48:20 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Graf X-Patchwork-Id: 88043 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 o2OKnmrP032203 for ; Wed, 24 Mar 2010 20:49:50 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933005Ab0CXUtq (ORCPT ); Wed, 24 Mar 2010 16:49:46 -0400 Received: from cantor2.suse.de ([195.135.220.15]:34522 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932980Ab0CXUsl (ORCPT ); Wed, 24 Mar 2010 16:48:41 -0400 Received: from relay1.suse.de (charybdis-ext.suse.de [195.135.221.2]) by mx2.suse.de (Postfix) with ESMTP id 6D09586A2E; Wed, 24 Mar 2010 21:48:38 +0100 (CET) From: Alexander Graf To: kvm-ppc@vger.kernel.org Cc: kvm@vger.kernel.org Subject: [PATCH 04/21] KVM: PPC: Book3S_32 guest MMU fixes Date: Wed, 24 Mar 2010 21:48:20 +0100 Message-Id: <1269463717-18305-5-git-send-email-agraf@suse.de> X-Mailer: git-send-email 1.6.0.2 In-Reply-To: <1269463717-18305-1-git-send-email-agraf@suse.de> References: <1269463717-18305-1-git-send-email-agraf@suse.de> 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]); Wed, 24 Mar 2010 20:49:51 +0000 (UTC) diff --git a/arch/powerpc/include/asm/kvm_book3s.h b/arch/powerpc/include/asm/kvm_book3s.h index 9f5a992..b47b2f5 100644 --- a/arch/powerpc/include/asm/kvm_book3s.h +++ b/arch/powerpc/include/asm/kvm_book3s.h @@ -44,6 +44,7 @@ struct kvmppc_sr { bool Ks; bool Kp; bool nx; + bool valid; }; struct kvmppc_bat { diff --git a/arch/powerpc/kvm/book3s_32_mmu.c b/arch/powerpc/kvm/book3s_32_mmu.c index 1483a9b..7071e22 100644 --- a/arch/powerpc/kvm/book3s_32_mmu.c +++ b/arch/powerpc/kvm/book3s_32_mmu.c @@ -57,6 +57,8 @@ static inline bool check_debug_ip(struct kvm_vcpu *vcpu) static int kvmppc_mmu_book3s_32_xlate_bat(struct kvm_vcpu *vcpu, gva_t eaddr, struct kvmppc_pte *pte, bool data); +static int kvmppc_mmu_book3s_32_esid_to_vsid(struct kvm_vcpu *vcpu, u64 esid, + u64 *vsid); static struct kvmppc_sr *find_sr(struct kvmppc_vcpu_book3s *vcpu_book3s, gva_t eaddr) { @@ -66,13 +68,14 @@ static struct kvmppc_sr *find_sr(struct kvmppc_vcpu_book3s *vcpu_book3s, gva_t e static u64 kvmppc_mmu_book3s_32_ea_to_vp(struct kvm_vcpu *vcpu, gva_t eaddr, bool data) { - struct kvmppc_sr *sre = find_sr(to_book3s(vcpu), eaddr); + u64 vsid; struct kvmppc_pte pte; if (!kvmppc_mmu_book3s_32_xlate_bat(vcpu, eaddr, &pte, data)) return pte.vpage; - return (((u64)eaddr >> 12) & 0xffff) | (((u64)sre->vsid) << 16); + kvmppc_mmu_book3s_32_esid_to_vsid(vcpu, eaddr >> SID_SHIFT, &vsid); + return (((u64)eaddr >> 12) & 0xffff) | (vsid << 16); } static void kvmppc_mmu_book3s_32_reset_msr(struct kvm_vcpu *vcpu) @@ -142,8 +145,13 @@ static int kvmppc_mmu_book3s_32_xlate_bat(struct kvm_vcpu *vcpu, gva_t eaddr, bat->bepi_mask); } if ((eaddr & bat->bepi_mask) == bat->bepi) { + u64 vsid; + kvmppc_mmu_book3s_32_esid_to_vsid(vcpu, + eaddr >> SID_SHIFT, &vsid); + vsid <<= 16; + pte->vpage = (((u64)eaddr >> 12) & 0xffff) | vsid; + pte->raddr = bat->brpn | (eaddr & ~bat->bepi_mask); - pte->vpage = (eaddr >> 12) | VSID_BAT; pte->may_read = bat->pp; pte->may_write = bat->pp > 1; pte->may_execute = true; @@ -302,6 +310,7 @@ static void kvmppc_mmu_book3s_32_mtsrin(struct kvm_vcpu *vcpu, u32 srnum, /* And then put in the new SR */ sre->raw = value; sre->vsid = (value & 0x0fffffff); + sre->valid = (value & 0x80000000) ? false : true; sre->Ks = (value & 0x40000000) ? true : false; sre->Kp = (value & 0x20000000) ? true : false; sre->nx = (value & 0x10000000) ? true : false; @@ -312,7 +321,7 @@ static void kvmppc_mmu_book3s_32_mtsrin(struct kvm_vcpu *vcpu, u32 srnum, static void kvmppc_mmu_book3s_32_tlbie(struct kvm_vcpu *vcpu, ulong ea, bool large) { - kvmppc_mmu_pte_flush(vcpu, ea, ~0xFFFULL); + kvmppc_mmu_pte_flush(vcpu, ea, 0x0FFFF000); } static int kvmppc_mmu_book3s_32_esid_to_vsid(struct kvm_vcpu *vcpu, u64 esid, @@ -333,15 +342,22 @@ static int kvmppc_mmu_book3s_32_esid_to_vsid(struct kvm_vcpu *vcpu, u64 esid, break; case MSR_DR|MSR_IR: { - ulong ea; - ea = esid << SID_SHIFT; - *vsid = find_sr(to_book3s(vcpu), ea)->vsid; + ulong ea = esid << SID_SHIFT; + struct kvmppc_sr *sr = find_sr(to_book3s(vcpu), ea); + + if (!sr->valid) + return -1; + + *vsid = sr->vsid; break; } default: BUG(); } + if (vcpu->arch.msr & MSR_PR) + *vsid |= VSID_PR; + return 0; }