From nobody Sun Feb 8 10:17:38 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1570707732; cv=none; d=zoho.com; s=zohoarc; b=BV/74Fnxp2koGHJ36YUej4vvl1a+5NOfV3G9G8clHopo7XQQ76icOtJiVCbvY6nIl3bq7TDeP9w5YSUhhLaqHkBrTJuLk9aFLmRXyeQMyGKNqHsRn1GIek+/VZR7jqhc+RzfM2USKGPiqozN2rdqE2B1yghAtgrFZpOgPhfrSNM= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zoho.com; s=zohoarc; t=1570707732; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=iLB35djPDuCfjtwDSJjmozfLdOBTtPawKRNdfED29RI=; b=jgk2TX3icxuZ1IMHrlTidOi4UGTxNDxDn97ycKZkXajnEFCEuqo4UUawGXH6jCFc6Kgrzqx0MG0sMmqpDfxw2iwzeFEBkN+oJAJUhhMX7jtFRL2FMZEWLPZvB3pUqBYMgWxZymDMuFoU1Td3Axf8pfpd5m8Dq6mzgoIfH1WPaI0= ARC-Authentication-Results: i=1; mx.zoho.com; spf=pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1570707732197824.08320918577; Thu, 10 Oct 2019 04:42:12 -0700 (PDT) Received: from localhost ([::1]:36466 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iIWpe-0004DA-GG for importer@patchew.org; Thu, 10 Oct 2019 07:42:10 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:50052) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iIWiC-0003Rd-8F for qemu-devel@nongnu.org; Thu, 10 Oct 2019 07:34:30 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iIWiB-0005lF-5E for qemu-devel@nongnu.org; Thu, 10 Oct 2019 07:34:28 -0400 Received: from mx1.redhat.com ([209.132.183.28]:33254) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1iIWiA-0005kh-W8; Thu, 10 Oct 2019 07:34:27 -0400 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 202013D94D; Thu, 10 Oct 2019 11:34:26 +0000 (UTC) Received: from t460s.redhat.com (ovpn-117-138.ams2.redhat.com [10.36.117.138]) by smtp.corp.redhat.com (Postfix) with ESMTP id 9B2B35C22C; Thu, 10 Oct 2019 11:34:24 +0000 (UTC) From: David Hildenbrand To: Peter Maydell , qemu-devel@nongnu.org Subject: [PULL 08/31] s390x/mmu: Add EDAT2 translation support Date: Thu, 10 Oct 2019 13:33:33 +0200 Message-Id: <20191010113356.5017-9-david@redhat.com> In-Reply-To: <20191010113356.5017-1-david@redhat.com> References: <20191010113356.5017-1-david@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.30]); Thu, 10 Oct 2019 11:34:26 +0000 (UTC) Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 209.132.183.28 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: qemu-s390x@nongnu.org, Cornelia Huck , Richard Henderson , Thomas Huth , David Hildenbrand Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" This only adds basic support to the DAT translation, but no EDAT2 support for TCG. E.g., the gdbstub under kvm uses this function, too, to translate virtual addresses. Reviewed-by: Thomas Huth Signed-off-by: David Hildenbrand --- target/s390x/mmu_helper.c | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) diff --git a/target/s390x/mmu_helper.c b/target/s390x/mmu_helper.c index dc33c63b1d..e27e21328b 100644 --- a/target/s390x/mmu_helper.c +++ b/target/s390x/mmu_helper.c @@ -120,6 +120,7 @@ static int mmu_translate_asce(CPUS390XState *env, targe= t_ulong vaddr, { const bool edat1 =3D (env->cregs[0] & CR0_EDAT) && s390_has_feat(S390_FEAT_EDAT); + const bool edat2 =3D edat1 && s390_has_feat(S390_FEAT_EDAT_2); const int asce_tl =3D asce & ASCE_TABLE_LENGTH; const int asce_p =3D asce & ASCE_PRIVATE_SPACE; hwaddr gaddr =3D asce & ASCE_ORIGIN; @@ -217,13 +218,21 @@ static int mmu_translate_asce(CPUS390XState *env, tar= get_ulong vaddr, if ((entry & REGION_ENTRY_TT) !=3D REGION_ENTRY_TT_REGION3) { return PGM_TRANS_SPEC; } - if (VADDR_SEGMENT_TL(vaddr) < (entry & REGION_ENTRY_TF) >> 6 || - VADDR_SEGMENT_TL(vaddr) > (entry & REGION_ENTRY_TL)) { - return PGM_SEGMENT_TRANS; + if (edat2 && (entry & REGION3_ENTRY_CR) && asce_p) { + return PGM_TRANS_SPEC; } if (edat1 && (entry & REGION_ENTRY_P)) { *flags &=3D ~PAGE_WRITE; } + if (edat2 && (entry & REGION3_ENTRY_FC)) { + *raddr =3D (entry & REGION3_ENTRY_RFAA) | + (vaddr & ~REGION3_ENTRY_RFAA); + return 0; + } + if (VADDR_SEGMENT_TL(vaddr) < (entry & REGION_ENTRY_TF) >> 6 || + VADDR_SEGMENT_TL(vaddr) > (entry & REGION_ENTRY_TL)) { + return PGM_SEGMENT_TRANS; + } gaddr =3D (entry & REGION_ENTRY_ORIGIN) + VADDR_SEGMENT_TX(vaddr) = * 8; /* fall through */ case ASCE_TYPE_SEGMENT: --=20 2.21.0