From nobody Mon Feb 9 01:20:35 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=1559767691; cv=none; d=zoho.com; s=zohoarc; b=n6uIIVCXdCG8lGGMhVHxUKNwKWsvOvkv25sNc7bXCzWRRCP3cnQmFs2ig2HCqslxyWRUUxsR4FtgsDU7+7VRbrqEeZEYEQEm/zeOC7Z61skUSDICyOxCRvenWMgRXetd6yJR01p2oKNqvOckJWPcR8uP7g7+ac4OUcWxmmrQV34= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zoho.com; s=zohoarc; t=1559767691; 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:ARC-Authentication-Results; bh=XxdScHgpNdpRSOMPbi4Lg7CeJB3AG0DQjzOZ9CrhMp4=; b=ArX1T+ep/W/+iWIarrGf5EINampxVfgrSS7NdjlwPQIQgB8QR5wMXgq7bPA/poZzS13T0IKZnP5Blw/sT4ntVlNig3j3eq64ML5DBHI2yPSs6ckbc6V0QumRRp/lvmH+ASxxfBH0mfj47TCrVRjXF2lckys+7GkmcLRsfLqW0R4= 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 1559767691539571.6650393354021; Wed, 5 Jun 2019 13:48:11 -0700 (PDT) Received: from localhost ([127.0.0.1]:49696 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hYcpO-0006Fa-Er for importer@patchew.org; Wed, 05 Jun 2019 16:48:10 -0400 Received: from eggs.gnu.org ([209.51.188.92]:41520) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hYcdT-0003x4-11 for qemu-devel@nongnu.org; Wed, 05 Jun 2019 16:35:56 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hYcdO-0008Qr-9T for qemu-devel@nongnu.org; Wed, 05 Jun 2019 16:35:50 -0400 Received: from mx1.redhat.com ([209.132.183.28]:59702) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1hYcdN-0007nD-Ps; Wed, 05 Jun 2019 16:35:46 -0400 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 59F5630044CE; Wed, 5 Jun 2019 20:35:22 +0000 (UTC) Received: from t460s.redhat.com (ovpn-116-124.ams2.redhat.com [10.36.116.124]) by smtp.corp.redhat.com (Postfix) with ESMTP id 25FC6619A9; Wed, 5 Jun 2019 20:35:19 +0000 (UTC) From: David Hildenbrand To: qemu-devel@nongnu.org Date: Wed, 5 Jun 2019 22:34:03 +0200 Message-Id: <20190605203403.29461-34-david@redhat.com> In-Reply-To: <20190605203403.29461-1-david@redhat.com> References: <20190605203403.29461-1-david@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.46]); Wed, 05 Jun 2019 20:35:27 +0000 (UTC) Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PULL SUBSYSTEM s390x 33/33] linux-user: elf: ELF_HWCAP for s390x X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Thomas Huth , Riku Voipio , David Hildenbrand , Cornelia Huck , Richard Henderson , Laurent Vivier , qemu-s390x@nongnu.org, Richard Henderson Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" Let's add all HWCAPs that we can support under TCG right now, when the respective CPU facilities are enabled. Cc: Riku Voipio Cc: Laurent Vivier Cc: Cornelia Huck Cc: Laurent Vivier Cc: Richard Henderson Acked-by: Laurent Vivier Reviewed-by: Richard Henderson Signed-off-by: David Hildenbrand --- include/elf.h | 1 + linux-user/elfload.c | 28 ++++++++++++++++++++++++++++ 2 files changed, 29 insertions(+) diff --git a/include/elf.h b/include/elf.h index ea7708a4ea..3501e0c8d0 100644 --- a/include/elf.h +++ b/include/elf.h @@ -598,6 +598,7 @@ typedef struct { #define HWCAP_S390_ETF3EH 256 #define HWCAP_S390_HIGH_GPRS 512 #define HWCAP_S390_TE 1024 +#define HWCAP_S390_VXRS 2048 =20 /* M68K specific definitions. */ /* We use the top 24 bits to encode information about the diff --git a/linux-user/elfload.c b/linux-user/elfload.c index a57b7049dd..5451d262ec 100644 --- a/linux-user/elfload.c +++ b/linux-user/elfload.c @@ -1308,6 +1308,34 @@ static inline void init_thread(struct target_pt_regs= *regs, #define ELF_DATA ELFDATA2MSB #define ELF_ARCH EM_S390 =20 +#include "elf.h" + +#define ELF_HWCAP get_elf_hwcap() + +#define GET_FEATURE(_feat, _hwcap) \ + do { if (s390_has_feat(_feat)) { hwcap |=3D _hwcap; } } while (0) + +static uint32_t get_elf_hwcap(void) +{ + /* + * Let's assume we always have esan3 and zarch. + * 31-bit processes can use 64-bit registers (high gprs). + */ + uint32_t hwcap =3D HWCAP_S390_ESAN3 | HWCAP_S390_ZARCH | HWCAP_S390_HI= GH_GPRS; + + GET_FEATURE(S390_FEAT_STFLE, HWCAP_S390_STFLE); + GET_FEATURE(S390_FEAT_MSA, HWCAP_S390_MSA); + GET_FEATURE(S390_FEAT_LONG_DISPLACEMENT, HWCAP_S390_LDISP); + GET_FEATURE(S390_FEAT_EXTENDED_IMMEDIATE, HWCAP_S390_EIMM); + if (s390_has_feat(S390_FEAT_EXTENDED_TRANSLATION_3) && + s390_has_feat(S390_FEAT_ETF3_ENH)) { + hwcap |=3D HWCAP_S390_ETF3EH; + } + GET_FEATURE(S390_FEAT_VECTOR, HWCAP_S390_VXRS); + + return hwcap; +} + static inline void init_thread(struct target_pt_regs *regs, struct image_i= nfo *infop) { regs->psw.addr =3D infop->entry; --=20 2.21.0