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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 90BEAC433EF for ; Wed, 4 May 2022 16:46:17 +0000 (UTC) Received: from localhost ([::1]:35098 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nmI8m-0004Up-BU for qemu-devel@archiver.kernel.org; Wed, 04 May 2022 12:46:16 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:54808) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nmI68-0001th-PC for qemu-devel@nongnu.org; Wed, 04 May 2022 12:43:32 -0400 Received: from mail-oo1-xc29.google.com ([2607:f8b0:4864:20::c29]:43811) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1nmI66-00083W-Ea for qemu-devel@nongnu.org; Wed, 04 May 2022 12:43:32 -0400 Received: by mail-oo1-xc29.google.com with SMTP id q73-20020a4a334c000000b0035eb110dd0dso280321ooq.10 for ; Wed, 04 May 2022 09:43:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=message-id:date:mime-version:user-agent:subject:content-language:to :cc:references:from:in-reply-to:content-transfer-encoding; bh=ccr5WDBDbwlEHtwDonHZ6L98h7p6Pd5pKrEmGwHh29g=; b=uhKgfYjUBUFIqtrY3L5oLIstdbrPtYhdOJGJ2pw/Wa5p1BIpca13ypTmWSfGoMVQDv XjEFqnQHQbbsy1tFSMg4oL8nHbAEeHy7dY/Dg4Wyy3Tx9UcBLsyVgn3qvT/Y/vob4Hfj eePQ+f2zvEE1222N3qBRMTDxjEEReKpjp/WTOm7MpScyXIEVfZaMdzqUt+GEUPMEj3QQ qAtC8we66bu2UjE2LOnw+K+anubc28hhfXIUDUOMcizU7gXwtfFT6Ldp1ovMwox9iz3O NdwIYIAkIxlVPNaKL9VsDf1UazguVAW88LVysWEXAim41kAq/wa/p+on68fhfI7kbAK9 GNdQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:message-id:date:mime-version:user-agent:subject :content-language:to:cc:references:from:in-reply-to :content-transfer-encoding; bh=ccr5WDBDbwlEHtwDonHZ6L98h7p6Pd5pKrEmGwHh29g=; b=wVGyUQy9g0s3hC6OuhBFn/JE9sn8Typ8SCAtsEZXpofbPGnwX6OGJfh1H3ZwvYe1hK tg8immyLqkctl8+WWjjab3NJcxr5ttvNtRpKVyb3NAHzEiWFWgRqcWMBVVyBL6lJeMWb tv8mNlog/8/nkyZHyIWoWa+Q0cyCT06XjaTRL/31VQkMHnYGzNSt3VVo7gbjrC8cG/+G 3XCs6k4aXwD68gH8hDIG5T/do7g9g6TYsaW5DVYx8r1K0AtYBYNUBI+4BZLt2aHPEbF+ yQsYg2rohbxiAs0LEwdCwYcC2gb4Osv3qLchH8Y5XVjgSIDHzDpdFshp11tmfll59O+E cP2A== X-Gm-Message-State: AOAM530jlF4E1Q35rgkn7KUEYzc9qQyLrTEso1sjtZ4sqhoJW/Q0ObYO yT6RlTGUGS3GTp/S6yzzL8Z78w== X-Google-Smtp-Source: ABdhPJy9hFzgZ92B1mZsWEiG1HwH3ZjZYSPJWeBKIpgeN0wYFlocF7x9VgUU2EPyeeSvOmj2ZE67YQ== X-Received: by 2002:a4a:9584:0:b0:33a:31df:6b6 with SMTP id o4-20020a4a9584000000b0033a31df06b6mr7535684ooi.73.1651682609349; Wed, 04 May 2022 09:43:29 -0700 (PDT) Received: from ?IPV6:2607:fb90:8a62:c821:2abd:6cc8:9397:7fb1? ([2607:fb90:8a62:c821:2abd:6cc8:9397:7fb1]) by smtp.gmail.com with ESMTPSA id u3-20020a056870d58300b000e686d1389csm8841727oao.54.2022.05.04.09.43.27 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 04 May 2022 09:43:28 -0700 (PDT) Message-ID: Date: Wed, 4 May 2022 10:36:37 -0500 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.8.0 Subject: Re: [PATCH] target/arm: read access to performance counters from EL0 Content-Language: en-US To: Alex Zuepke Cc: "open list:ARM TCG CPUs" , "open list:All patches CC here" , Peter Maydell References: <20220428132717.84190-1-alex.zuepke@tum.de> From: Richard Henderson In-Reply-To: <20220428132717.84190-1-alex.zuepke@tum.de> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Received-SPF: pass client-ip=2607:f8b0:4864:20::c29; envelope-from=richard.henderson@linaro.org; helo=mail-oo1-xc29.google.com 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, NICE_REPLY_A=-0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 4/28/22 06:27, Alex Zuepke wrote: > The ARMv8 manual defines that PMUSERENR_EL0.ER enables read-access > to both PMXEVCNTR_EL0 and PMEVCNTR_EL0 registers, however, > we only use it for PMXEVCNTR_EL0. Extend to PMEVCNTR_EL0 as well. > > Signed-off-by: Alex Zuepke > --- > target/arm/helper.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) Reviewed-by: Richard Henderson r~