From patchwork Sun Jan 10 02:27:47 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Graf X-Patchwork-Id: 71974 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter.kernel.org (8.14.3/8.14.2) with ESMTP id o0A2Rs3S021626 for ; Sun, 10 Jan 2010 02:27:54 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751784Ab0AJC1v (ORCPT ); Sat, 9 Jan 2010 21:27:51 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751350Ab0AJC1v (ORCPT ); Sat, 9 Jan 2010 21:27:51 -0500 Received: from cantor.suse.de ([195.135.220.2]:60216 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751017Ab0AJC1u (ORCPT ); Sat, 9 Jan 2010 21:27:50 -0500 Received: from relay1.suse.de (charybdis-ext.suse.de [195.135.221.2]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.suse.de (Postfix) with ESMTP id 3F7F090847; Sun, 10 Jan 2010 03:27:48 +0100 (CET) From: Alexander Graf To: kvm@vger.kernel.org Cc: kvm-ppc , Benjamin Herrenschmidt Subject: [PATCH 2/2] KVM: PPC: Make large pages work Date: Sun, 10 Jan 2010 03:27:47 +0100 Message-Id: <1263090467-30494-1-git-send-email-agraf@suse.de> X-Mailer: git-send-email 1.6.0.2 Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org diff --git a/arch/powerpc/include/asm/kvm_book3s.h b/arch/powerpc/include/asm/kvm_book3s.h index 79ab8fa..c7db69f 100644 --- a/arch/powerpc/include/asm/kvm_book3s.h +++ b/arch/powerpc/include/asm/kvm_book3s.h @@ -34,7 +34,8 @@ struct kvmppc_slb { bool Ks; bool Kp; bool nx; - bool large; + bool large; /* PTEs are 16MB */ + bool tb; /* 1TB segment */ bool class; }; diff --git a/arch/powerpc/kvm/book3s_64_mmu.c b/arch/powerpc/kvm/book3s_64_mmu.c index e4beeb3..512dcff 100644 --- a/arch/powerpc/kvm/book3s_64_mmu.c +++ b/arch/powerpc/kvm/book3s_64_mmu.c @@ -54,7 +54,7 @@ static struct kvmppc_slb *kvmppc_mmu_book3s_64_find_slbe( if (!vcpu_book3s->slb[i].valid) continue; - if (vcpu_book3s->slb[i].large) + if (vcpu_book3s->slb[i].tb) cmp_esid = esid_1t; if (vcpu_book3s->slb[i].esid == cmp_esid) @@ -65,9 +65,10 @@ static struct kvmppc_slb *kvmppc_mmu_book3s_64_find_slbe( eaddr, esid, esid_1t); for (i = 0; i < vcpu_book3s->slb_nr; i++) { if (vcpu_book3s->slb[i].vsid) - dprintk(" %d: %c%c %llx %llx\n", i, + dprintk(" %d: %c%c%c %llx %llx\n", i, vcpu_book3s->slb[i].valid ? 'v' : ' ', vcpu_book3s->slb[i].large ? 'l' : ' ', + vcpu_book3s->slb[i].tb ? 't' : ' ', vcpu_book3s->slb[i].esid, vcpu_book3s->slb[i].vsid); } @@ -84,7 +85,7 @@ static u64 kvmppc_mmu_book3s_64_ea_to_vp(struct kvm_vcpu *vcpu, gva_t eaddr, if (!slb) return 0; - if (slb->large) + if (slb->tb) return (((u64)eaddr >> 12) & 0xfffffff) | (((u64)slb->vsid) << 28); @@ -309,7 +310,8 @@ static void kvmppc_mmu_book3s_64_slbmte(struct kvm_vcpu *vcpu, u64 rs, u64 rb) slbe = &vcpu_book3s->slb[slb_nr]; slbe->large = (rs & SLB_VSID_L) ? 1 : 0; - slbe->esid = slbe->large ? esid_1t : esid; + slbe->tb = (rs & SLB_VSID_B_1T) ? 1 : 0; + slbe->esid = slbe->tb ? esid_1t : esid; slbe->vsid = rs >> 12; slbe->valid = (rb & SLB_ESID_V) ? 1 : 0; slbe->Ks = (rs & SLB_VSID_KS) ? 1 : 0;