From patchwork Tue Jul 18 16:45:19 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jing Zhang X-Patchwork-Id: 13317447 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id CB1DEEB64DD for ; Tue, 18 Jul 2023 16:45:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231294AbjGRQpg (ORCPT ); Tue, 18 Jul 2023 12:45:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53256 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232144AbjGRQpe (ORCPT ); Tue, 18 Jul 2023 12:45:34 -0400 Received: from mail-yb1-xb4a.google.com (mail-yb1-xb4a.google.com [IPv6:2607:f8b0:4864:20::b4a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0857010CB for ; Tue, 18 Jul 2023 09:45:34 -0700 (PDT) Received: by mail-yb1-xb4a.google.com with SMTP id 3f1490d57ef6-ccabb20111dso3030312276.3 for ; Tue, 18 Jul 2023 09:45:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20221208; t=1689698733; x=1692290733; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=BJAEm87EHCeOWjKJA30wa69olvlB7/s8Sl9tx5zF2lQ=; b=tfkUfwMnUrklnQXtS24STivSqw+iQ+fA4TFwL7HBlnVEqzpPO8wCQ0LzpDSsOXDIpq x1/xbW5Lhl6F4kgls2JBqjroHcaQnRMYYJLqW0gMXBA7aLWFZfF7BOvE2ePSI4YJGRyq tywUlFjWuB1m0rig8gPtAG6ItxfiXWgZks/sD6CDikU55wFiKZseByVkSBlcnOcVegfQ +i69uPR777tzcJrLjb0dFAMyV7mgl0lLfmDOUSf99DAyjF20886gF+hjgJTC1GBY8SF/ +MkAxzuIn0PQYGkJCzAuprDebJHw1S8ISx4qq165nToNntEQ+6B/I30mZedwjS5SCiro 8iBw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1689698733; x=1692290733; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=BJAEm87EHCeOWjKJA30wa69olvlB7/s8Sl9tx5zF2lQ=; b=gpbKb2jxYIqPzVPttvX5R4XZCTvstGvg/6XXttNo8IZzzh+pWWlhSjMTwryZVFHGS/ U1y3JeWWjF3JGD12plZsf3yJsfMPLU6PFWN0boK3VadNHb3pn7ckAZwJpA+rRp9oPznb 7Z4N5zXDjWEIkydQPl7947S4rXSfl6gVSgU0YnOaFI24VThuHa2WHyH6CV7mHJHywn3j OoSsLk3Yb/v35LIymlSq9bY8jNxN8ceyOCXfawJubAgD/BRV8GvqsBrfwAoTejpK9XzY OjGMlOGo5J96SDDf7oWj/7/xocB5+mjyudNad2Bwe2MmMS/1FFV+qXZHQeaBEa2iRX7/ VdOA== X-Gm-Message-State: ABy/qLa6Q8pLoMJRTYEJUwW9nADbPXeE6RmV4REAU3hFSnUEKFig/hNx LIB0E7nB5Ji/tEqhcpPubZOhosz2+u4sUTWel/6zGp1kMY0SpCRQGM8Lop/Yxv4RGnizsBqe/9t StbQlwxhgOed4oXcXvM2a4rbIuwQjuRi38RvKD989VzkK0dIfTxVIbudq185iwxzytvq3X2w= X-Google-Smtp-Source: APBJJlG7+TffRkqMu2lcoVZqj2J4kwXnhwITwWw6ib/WW3uqG7zZKtjT/gjSzmWi7SNVPapr4h2k9BU/V5PlgHmjwA== X-Received: from jgzg.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:1acf]) (user=jingzhangos job=sendgmr) by 2002:a25:9745:0:b0:ce9:4c77:bc0b with SMTP id h5-20020a259745000000b00ce94c77bc0bmr2571ybo.11.1689698732911; Tue, 18 Jul 2023 09:45:32 -0700 (PDT) Date: Tue, 18 Jul 2023 16:45:19 +0000 In-Reply-To: <20230718164522.3498236-1-jingzhangos@google.com> Mime-Version: 1.0 References: <20230718164522.3498236-1-jingzhangos@google.com> X-Mailer: git-send-email 2.41.0.255.g8b1d071c50-goog Message-ID: <20230718164522.3498236-4-jingzhangos@google.com> Subject: [PATCH v6 3/6] KVM: arm64: Enable writable for ID_AA64DFR0_EL1 and ID_DFR0_EL1 From: Jing Zhang To: KVM , KVMARM , ARMLinux , Marc Zyngier , Oliver Upton Cc: Will Deacon , Paolo Bonzini , James Morse , Alexandru Elisei , Suzuki K Poulose , Fuad Tabba , Reiji Watanabe , Raghavendra Rao Ananta , Suraj Jitindar Singh , Cornelia Huck , Jing Zhang Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org All valid fields in ID_AA64DFR0_EL1 and ID_DFR0_EL1 are writable from usrespace with this change. Signed-off-by: Jing Zhang --- arch/arm64/kvm/sys_regs.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c index 053d8057ff1e..f33aec83f1b4 100644 --- a/arch/arm64/kvm/sys_regs.c +++ b/arch/arm64/kvm/sys_regs.c @@ -2008,7 +2008,7 @@ static const struct sys_reg_desc sys_reg_descs[] = { .set_user = set_id_dfr0_el1, .visibility = aa32_id_visibility, .reset = read_sanitised_id_dfr0_el1, - .val = ID_DFR0_EL1_PerfMon_MASK, }, + .val = GENMASK(63, 0), }, ID_HIDDEN(ID_AFR0_EL1), AA32_ID_SANITISED(ID_MMFR0_EL1), AA32_ID_SANITISED(ID_MMFR1_EL1), @@ -2057,7 +2057,7 @@ static const struct sys_reg_desc sys_reg_descs[] = { .get_user = get_id_reg, .set_user = set_id_aa64dfr0_el1, .reset = read_sanitised_id_aa64dfr0_el1, - .val = ID_AA64DFR0_EL1_PMUVer_MASK, }, + .val = GENMASK(63, 0), }, ID_SANITISED(ID_AA64DFR1_EL1), ID_UNALLOCATED(5,2), ID_UNALLOCATED(5,3),