From patchwork Wed Sep 16 00:46:32 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Richard Henderson X-Patchwork-Id: 273630 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=-6.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT 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 B0DAAC433E2 for ; Wed, 16 Sep 2020 00:48:17 +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 2A2AD2076B for ; Wed, 16 Sep 2020 00:48:17 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="t9a8vZ7R" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2A2AD2076B Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linaro.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:60780 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kILcN-0007uO-Vo for qemu-devel@archiver.kernel.org; Tue, 15 Sep 2020 20:48:16 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:56680) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kILav-0006C6-5P for qemu-devel@nongnu.org; Tue, 15 Sep 2020 20:46:45 -0400 Received: from mail-pf1-x435.google.com ([2607:f8b0:4864:20::435]:33177) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kILas-0001Ux-4y for qemu-devel@nongnu.org; Tue, 15 Sep 2020 20:46:44 -0400 Received: by mail-pf1-x435.google.com with SMTP id z18so413151pfg.0 for ; Tue, 15 Sep 2020 17:46:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=yNC3S/khtq12tJRSCbvlPPiZVwJzXQmUa6AFIClVkY4=; b=t9a8vZ7RVzwtQjEt1J3AvjbyTZKrIuOQeg0s7nSJZG9F1LWO3SLgm5PwDxJ3DAE9i3 q7n9XBArD+tloYxXm+vYjQabmP6m1qeGXccS62ucuNFVnGZEDc1OxQoPzFZu4rScBFUc /96SgSqFvhTiQatY8Ks4SLZUJKaa5MBkNP8XtU1chc8hU/2h45rJhlB3eWPR3LpDujKA sSQMyx48zVXVznCYLCHQsRScFLuQ9NSIPL2ShMg/gHTtD2YGrn/w0yp5DY5yO4U8UGmy Ml0cuUD96dTFzuqWfJ6VbzN+TxH+fLYtpCZeUqzdeQCgEXWjFoGSGyAUE+/97vEEzefm oP4w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=yNC3S/khtq12tJRSCbvlPPiZVwJzXQmUa6AFIClVkY4=; b=GoVWHXslL9v5hUtAqF6lHyxL183CSeXaapaeB72dZAJZVwVjU4L4r6mmwI9ML+Ny0n dyy/0UI16YGcqrZcusiRI3f7OBNbVEB9YmrQ0PLqWG/FVzycj7IMpefi8dGt2N6xYrAV x3F5pmZf1x3jFNjggq/PBEzX5+t+dvOLEui8RKbNfLiDL5Jj/35qfulWwYHiRLIw/xM3 K5YLxi6kOxl7RnvwiIRSpC8Y1R2RJfBE6/uzOaRMdTHPQqCCDe6HHE2ukvtNjfZBpass iEk4XOyhRAWnQk6Vk9W3d7hhyGhQOSdAXk4go3ev2WlKZBLaF4M3OCzIQI/mwT9m6xgP jHtw== X-Gm-Message-State: AOAM531tjl9RLArXwsUER29Po8m+Ziz6NeUUdB7mF2G7hMoFbJmBU6HD 8MK9dfpbkj1wP0JK4D4b82lu0Br5414IHw== X-Google-Smtp-Source: ABdhPJy3dazCFMWcdNrfGtLknyJ6gg7B2dLw1Nk7g9bwMYZfOWiG6C5+ZdP5uNbaz5iBcX6Yvjy1IQ== X-Received: by 2002:a62:7c82:0:b029:13c:1611:6525 with SMTP id x124-20020a627c820000b029013c16116525mr20664512pfc.5.1600217200425; Tue, 15 Sep 2020 17:46:40 -0700 (PDT) Received: from localhost.localdomain ([71.212.141.89]) by smtp.gmail.com with ESMTPSA id kf10sm611723pjb.2.2020.09.15.17.46.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 15 Sep 2020 17:46:39 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH v2 0/6] qom: Allow object to be aligned Date: Tue, 15 Sep 2020 17:46:32 -0700 Message-Id: <20200916004638.2444147-1-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::435; envelope-from=richard.henderson@linaro.org; helo=mail-pf1-x435.google.com X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action 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: Peter Maydell , =?utf-8?q?Daniel_P=2E_Berran?= =?utf-8?b?Z8Op?= , Eduardo Habkost , qemu-riscv@nongnu.org, David Hildenbrand , qemu-ppc@nongnu.org, Cornelia Huck , qemu-s390x@nongnu.org, qemu-arm@nongnu.org, Alistair Francis , Paolo Bonzini , David Gibson Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" I've seen some failures on arm and s390x hosts after enabling host vector support. It turns out that the malloc for these hosts does not provide 16-byte alignment. We already have a function that can alloc with alignment, but we need to pass this down from the structure. We also don't want to use this function unconditionally, because the windows version does page allocation, which would be overkill for the vast majority of the objects allocated. Changes in v2: * Add _aligned_malloc patch for win32. For what it's worth, this passes a gitlab cross-compile test. * Add and use qemu_max_align_t for choosing between g_malloc and qemu_memalign. I had been discussing extra checks for i386-linux with Eduardo, but then it occured to me that both linux libc posix_memalign is smart enough to not imply extra overhead. So qemu_memalign with alignment <= malloc alignment is handled easily by the system. r~ Cc: Paolo Bonzini Cc: "Daniel P. Berrangé" Cc: Eduardo Habkost Cc: Peter Maydell Cc: David Gibson Cc: Alistair Francis Cc: David Hildenbrand Cc: Cornelia Huck Cc: qemu-arm@nongnu.org Cc: qemu-ppc@nongnu.org Cc: qemu-riscv@nongnu.org Cc: qemu-s390x@nongnu.org Richard Henderson (6): util/oslib-win32: Use _aligned_malloc for qemu_try_memalign qom: Allow objects to be allocated with increased alignment target/arm: Set instance_align on CPUARM TypeInfo target/ppc: Set instance_align on PowerPCCPU TypeInfo target/riscv: Set instance_align on RISCVCPU TypeInfo target/s390x: Set instance_align on S390CPU TypeInfo include/qom/object.h | 5 +++++ qom/object.c | 36 ++++++++++++++++++++++++++++++--- target/arm/cpu.c | 2 ++ target/riscv/cpu.c | 1 + target/s390x/cpu.c | 1 + util/oslib-win32.c | 10 +++------ target/ppc/translate_init.c.inc | 1 + 7 files changed, 46 insertions(+), 10 deletions(-) Reviewed-by: Alistair Francis