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=-8.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=ham 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 22F58C2D0A3 for ; Thu, 12 Nov 2020 09:48:06 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (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 B0294221FC for ; Thu, 12 Nov 2020 09:48:05 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="UTkAhwcR" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B0294221FC Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References:Message-ID: Subject:To:From:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=Ip34bxPvy/maBEgvPPUplJs0+LVqfiVn5A5hzZWKx10=; b=UTkAhwcRQR1ERbWxXQs5LhdGM jceuVMSZJejYhpt3iAHsODlsOC4vAwTIp4AE+DCjvJNnkgqpDFPNSlLBy7DfWuVPRAh934WUEAXen /6LHAfHkLbial63jElvIncruY1JvlRcmsabAvZt1eo2+HsdSWeJ9zlJNp3TuO+UB/Nnyj3MVv9fQx gca2roMdSaXoqDparGWS5GS7aFDGy5lsfs5ndYyqTe3f5uAfgnQNNDJJbcxHKRTsjmVL9dWicDGzK xY6pgFjKoY3ETTGexgesC74yNaGTCyQOQIF5rbgXS6nbgJpveEVuPK5kLPljrqSfqwsNF875MsbmV 8nz4L1jmg==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kd9C3-0006Td-7w; Thu, 12 Nov 2020 09:47:03 +0000 Received: from mail.kernel.org ([198.145.29.99]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kd9C0-0006SP-8L for linux-arm-kernel@lists.infradead.org; Thu, 12 Nov 2020 09:47:01 +0000 Received: from gaia (unknown [2.26.170.190]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 946DE21D40; Thu, 12 Nov 2020 09:46:56 +0000 (UTC) Date: Thu, 12 Nov 2020 09:46:54 +0000 From: Catalin Marinas To: Andrey Konovalov Subject: Re: [PATCH v9 44/44] kselftest/arm64: Check GCR_EL1 after context switch Message-ID: <20201112094653.GH29613@gaia> References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201112_044700_390658_E981CBA2 X-CRM114-Status: GOOD ( 14.70 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-arm-kernel@lists.infradead.org, Marco Elver , Kevin Brodsky , Will Deacon , Branislav Rankov , kasan-dev@googlegroups.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Alexander Potapenko , Evgenii Stepanov , Andrey Ryabinin , Andrew Morton , Vincenzo Frascino , Dmitry Vyukov Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Tue, Nov 10, 2020 at 11:10:41PM +0100, Andrey Konovalov wrote: > From: Vincenzo Frascino > > This test is specific to MTE and verifies that the GCR_EL1 register > is context switched correctly. > > It spawn 1024 processes and each process spawns 5 threads. Each thread > writes a random setting of GCR_EL1 through the prctl() system call and > reads it back verifying that it is the same. If the values are not the > same it reports a failure. > > Note: The test has been extended to verify that even SYNC and ASYNC mode > setting is preserved correctly over context switching. > > Signed-off-by: Vincenzo Frascino > Signed-off-by: Andrey Konovalov Acked-by: Catalin Marinas _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel