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 7C8B8C47422 for ; Sat, 27 Jan 2024 03:10:14 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rTZ4O-0002Sp-Gt; Fri, 26 Jan 2024 22:09:24 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rTZ4M-0002Rf-QQ for qemu-devel@nongnu.org; Fri, 26 Jan 2024 22:09:22 -0500 Received: from mail-oi1-x229.google.com ([2607:f8b0:4864:20::229]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1rTZ4L-0007Jc-3p for qemu-devel@nongnu.org; Fri, 26 Jan 2024 22:09:22 -0500 Received: by mail-oi1-x229.google.com with SMTP id 5614622812f47-3bd6581bc66so935023b6e.1 for ; Fri, 26 Jan 2024 19:09:20 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1706324960; x=1706929760; darn=nongnu.org; h=content-transfer-encoding:in-reply-to:from:references:to :content-language:subject:user-agent:mime-version:date:message-id :from:to:cc:subject:date:message-id:reply-to; bh=brvN+T3G8ChesX+gJm3C8l7IDzprPjl4zysU1+vcnIw=; b=UQGH34L3+wC+ATmetlZinYnv41wloRmNfWYvNKkxlhyElE3WpLgyXdyGJzibjjvhe0 eKorJH//UteQcDGV9oUd+DfvjB7eSSAhhsaWXAuazndS9sBG6RyDgQLXedBBqO6PFWJ2 PxO5Lt2aSDYkvqBeD5Q+JHBKRfrtoTGcneF5lct0mYTOpXiOQZfroHq3IjXyd02vDkoh hCBZCBlRUxWTaGe3VjuOmt1DtAihHmScJZgSjOpz1GpZsD1h1WmyEv7ZSBWPs1Y7+1Ir 2J3cNZosL8Ot7/6Q3RYkZ1NM8IpoNWO/Fbd1XBDEW3GMm0wbDgtAnEQrHSF48fNeq1nB JuPw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1706324960; x=1706929760; h=content-transfer-encoding:in-reply-to:from:references:to :content-language:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=brvN+T3G8ChesX+gJm3C8l7IDzprPjl4zysU1+vcnIw=; b=dFZwEIsdjZvtLTe1sfmpBwoWWJm6tfZtbQMmElKfVLUF1Il6sbDq41c3+Gj8UqHWZN YGwTdJOttivYLrA23GnKpmj0/9x+ofM+28KJ20IN5BY2vBmZA0phvGsnPlJk8SmflKic OAGxBsMpbENSLoWGkY6JkZ4v5YZ0Dcx7vsMvxfWBO2b1nAZ4pxbryKLERqfaSn6Js9f+ hd7B/6xuLLN4el8v/1cBuraI0i3U+HDO4RVcsBHmNk3fCyaNYSOQpw7vDEEMaqcUZUKD mH2VivDWjJLolYrXgmokWmv4ftmbuoA/9DHS5fhz43FMW4iOTpHO7922WQmwjNMXzrNo pvbA== X-Gm-Message-State: AOJu0YwmmkvN1gIqDjPD68ggKtz7lC/kuoIImQo8zubD40ZVOC1CxuS1 uDYpKXEgUkfwXgCzC8wckCobblzAkQPAl7+AIV2QSbL7Zdr8zkM4j9Q33XkKqfo= X-Google-Smtp-Source: AGHT+IGUQm1flWdoDuqIVD6/FEdvmgcbBpZvbJinDT+4r1th52gWtavzVeLR6QyUDKIZi0Z7G/I1TQ== X-Received: by 2002:a05:6808:1314:b0:3be:174c:1888 with SMTP id y20-20020a056808131400b003be174c1888mr457260oiv.44.1706324959685; Fri, 26 Jan 2024 19:09:19 -0800 (PST) Received: from ?IPV6:2001:8003:c96c:3c00:b5dc:ba0f:990f:fb9e? ([2001:8003:c96c:3c00:b5dc:ba0f:990f:fb9e]) by smtp.gmail.com with ESMTPSA id jw16-20020a056a00929000b006d99056c4edsm1784168pfb.187.2024.01.26.19.09.17 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 26 Jan 2024 19:09:19 -0800 (PST) Message-ID: <87c249b0-8f08-40e6-91c1-1d3c970b567a@linaro.org> Date: Sat, 27 Jan 2024 13:09:13 +1000 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] target/arm: Add ID_AA64ZFR0_EL1.B16B16 to the exposed-to-userspace set Content-Language: en-US To: Peter Maydell , qemu-arm@nongnu.org, qemu-devel@nongnu.org References: <20240125134304.1470404-1-peter.maydell@linaro.org> From: Richard Henderson In-Reply-To: <20240125134304.1470404-1-peter.maydell@linaro.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Received-SPF: pass client-ip=2607:f8b0:4864:20::229; envelope-from=richard.henderson@linaro.org; helo=mail-oi1-x229.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, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham 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-bounces+qemu-devel=archiver.kernel.org@nongnu.org On 1/25/24 23:43, Peter Maydell wrote: > In kernel commit 5d5b4e8c2d9ec ("arm64/sve: Report FEAT_SVE_B16B16 to > userspace") Linux added ID_AA64ZFR0_el1.B16B16 to the set of ID > register fields which it exposes to userspace. Update our > exported_bits mask to include this. > > (This doesn't yet change any behaviour for us, because we don't yet > have any CPUs that implement this feature, which is part of SVE2.) > > Signed-off-by: Peter Maydell > --- > This is a loose end from last year: in commit 5f7b71fb99dc I > updated our mask values to match the kernel, and when I was > doing that I noticed that the kernel had forgotten to add > B16B16 to its report-to-userspace list when adding support > for that architectural feature. Now the kernel has fixed its > side, we can update again to match it. > --- > target/arm/helper.c | 1 + > tests/tcg/aarch64/sysregs.c | 2 +- > 2 files changed, 2 insertions(+), 1 deletion(-) Reviewed-by: Richard Henderson r~