From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 307D6C3A59E for ; Mon, 26 Aug 2019 07:53:33 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 071A92087E for ; Mon, 26 Aug 2019 07:53:33 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 071A92087E Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:50586 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1i29oh-0001ku-Pk for qemu-devel@archiver.kernel.org; Mon, 26 Aug 2019 03:53:31 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:41898) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1i29mf-0008Ub-TZ for qemu-devel@nongnu.org; Mon, 26 Aug 2019 03:51:26 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1i29me-0002il-E9 for qemu-devel@nongnu.org; Mon, 26 Aug 2019 03:51:25 -0400 Received: from mx1.redhat.com ([209.132.183.28]:60594) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1i29me-0002i7-6n; Mon, 26 Aug 2019 03:51:24 -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 84CA410576DD; Mon, 26 Aug 2019 07:51:22 +0000 (UTC) Received: from t460s.redhat.com (ovpn-116-227.ams2.redhat.com [10.36.116.227]) by smtp.corp.redhat.com (Postfix) with ESMTP id 9B3614251; Mon, 26 Aug 2019 07:51:13 +0000 (UTC) From: David Hildenbrand To: qemu-devel@nongnu.org Date: Mon, 26 Aug 2019 09:51:05 +0200 Message-Id: <20190826075112.25637-1-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-4.6.2 (mx1.redhat.com [10.5.110.64]); Mon, 26 Aug 2019 07:51:22 +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] [PATCH v2 0/7] tcg: probe_write() refactorings 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: Thomas Huth , Riku Voipio , Eduardo Habkost , David Hildenbrand , Aleksandar Rikalo , Cornelia Huck , Aleksandar Markovic , qemu-s390x@nongnu.org, Paolo Bonzini , Aurelien Jarno , Richard Henderson Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Based on tcg-next. The last two patches from v1 are now part of "[PATCH 0/6] exec: Cleanup watchpoints" from richard. Fix and refactore some things around probe_write() in s390x code. Introdu= ce probe_write() for CONFIG_USER_ONLY. This is the first step of some changes necessary to handle fault-safe access accross multiple pages on s390x. The next step is making probe_write() return an address, similar to tlb_vaddr_to_host(), and introduing probe_read(). v1 -> v2: - "tcg: Factor out CONFIG_USER_ONLY probe_write() from s390x code" -- Perform only a single !guest_addr_valid(addr) check. - "tcg: Enforce single page access in probe_write()" -- Also add the check for CONFIG_USER_ONLY Cc: Richard Henderson Cc: Paolo Bonzini Cc: Riku Voipio Cc: Eduardo Habkost Cc: Marcel Apfelbaum Cc: Aurelien Jarno Cc: Aleksandar Markovic Cc: Aleksandar Rikalo Cc: Cornelia Huck David Hildenbrand (7): s390x/tcg: Use guest_addr_valid() instead of h2g_valid() in probe_write_access() s390x/tcg: Fix length calculation in probe_write_access() tcg: Factor out CONFIG_USER_ONLY probe_write() from s390x code tcg: Enforce single page access in probe_write() mips/tcg: Call probe_write() for CONFIG_USER_ONLY as well hppa/tcg: Call probe_write() also for CONFIG_USER_ONLY s390x/tcg: Pass a size to probe_write() in do_csst() accel/tcg/cputlb.c | 2 ++ accel/tcg/user-exec.c | 17 +++++++++++++++++ include/exec/exec-all.h | 4 ++-- target/hppa/op_helper.c | 2 -- target/mips/op_helper.c | 8 +++----- target/s390x/mem_helper.c | 13 ++----------- 6 files changed, 26 insertions(+), 20 deletions(-) --=20 2.21.0