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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D1158C433EF for ; Wed, 17 Nov 2021 06:53:26 +0000 (UTC) Received: from mm01.cs.columbia.edu (mm01.cs.columbia.edu [128.59.11.253]) by mail.kernel.org (Postfix) with ESMTP id 7DF7C6321B for ; Wed, 17 Nov 2021 06:53:26 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 7DF7C6321B Authentication-Results: mail.kernel.org; dmarc=fail (p=reject dis=none) header.from=google.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=lists.cs.columbia.edu Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 2EA2D4B134; Wed, 17 Nov 2021 01:53:26 -0500 (EST) X-Virus-Scanned: at lists.cs.columbia.edu Authentication-Results: mm01.cs.columbia.edu (amavisd-new); dkim=softfail (fail, message has been altered) header.i=@google.com Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id gjL1NGbk9yiO; Wed, 17 Nov 2021 01:53:24 -0500 (EST) Received: from mm01.cs.columbia.edu (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 968B74B0F5; Wed, 17 Nov 2021 01:53:24 -0500 (EST) Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 3926E4B0CE for ; Wed, 17 Nov 2021 01:53:23 -0500 (EST) X-Virus-Scanned: at lists.cs.columbia.edu Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id CLnk5UdkPQ3G for ; Wed, 17 Nov 2021 01:53:22 -0500 (EST) Received: from mail-pl1-f202.google.com (mail-pl1-f202.google.com [209.85.214.202]) by mm01.cs.columbia.edu (Postfix) with ESMTPS id 492BD4A7FD for ; Wed, 17 Nov 2021 01:53:22 -0500 (EST) Received: by mail-pl1-f202.google.com with SMTP id l14-20020a170903120e00b00143cc292bc3so580622plh.1 for ; Tue, 16 Nov 2021 22:53:22 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=qC/eXS2nFGbe5LWPRqIYtTbFYtBHmQ7GJKQdVVP+A0A=; b=ghbQ96p4mvC9twAH0Tuj9lFaRHB0m+8uJQPFzZ/CIBytnHC1y3VVqa5GIPtE6fyT9m +nnTxOjPfBRykrURArKpX2lWueXwUYmbzzd1B19UzxxMpqE4r5tms+Hsh7VPek4W+Kh3 w3pKoJUfdsAarCISRa5BiPct5PvoCMPMOX+U7d+0giU2WFUZ06dfLr+8kseGJABiQtfO uIN6ChXyDtLWyDwej87qXdsZippbWA6S84KHonLZMfYhMIK4+n/AZWFLeoAqSGsIDWoP OGFO9nIob2MxsERrirI2PCI8fIqEfdqOZGLzdc5U3v0awu3fxsk7lv4JAfnpteT3tp1Z CymQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=qC/eXS2nFGbe5LWPRqIYtTbFYtBHmQ7GJKQdVVP+A0A=; b=CRhLHr3gwQf3UYFGCLLv1lXx5KhS/fXAdmSedOqLG5VHpq6hxyUOr3DwbOPNCn21Z2 T64Vy2a5+EcEIqlcroUauwV9bJabIAWcF+3LnxWoZMDGvit8el5hho+ngHXLI7pFkpFn ngvBvu24DnpKIH981FuKQ5PmC/RCWvob0u/10Sluv1l3A56hpopmu49gVZ25Z0DkGZdD CuR+tbSZa9eSNCVSHTioBlkW7lERV/noNKSXGE3+koxOol0FTdFFmpHwuvLthaIsJdbB rN7m1cKEklD0k2XbXdsLc7B5oL75LkjEbBlB2YvVYsqmw129FDyvDkQmgTCACRVlqR1P zfIw== X-Gm-Message-State: AOAM533/FNGAgkze+adgfcgqWzJ559Dx4B/kSb5Vj3TJiMAPmQ2cG3Gj dMl1mkSai+WWPWJekbJEOp9HCXlCpVs= X-Google-Smtp-Source: ABdhPJwC4wjg1VuToYTvSJudxfPpKWjHgt+8qmyxs2CKjFyvyU3SEzO1OSgLiJ1kbIUegF9tuwn3xYxJOOg= X-Received: from reiji-vws-sp.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:3d59]) (user=reijiw job=sendgmr) by 2002:a17:902:748c:b0:142:5f2f:1828 with SMTP id h12-20020a170902748c00b001425f2f1828mr52715009pll.4.1637132001549; Tue, 16 Nov 2021 22:53:21 -0800 (PST) Date: Tue, 16 Nov 2021 22:43:42 -0800 In-Reply-To: <20211117064359.2362060-1-reijiw@google.com> Message-Id: <20211117064359.2362060-13-reijiw@google.com> Mime-Version: 1.0 References: <20211117064359.2362060-1-reijiw@google.com> X-Mailer: git-send-email 2.34.0.rc1.387.gb447b232ab-goog Subject: [RFC PATCH v3 12/29] KVM: arm64: Make ID_DFR1_EL1 writable From: Reiji Watanabe To: Marc Zyngier , kvmarm@lists.cs.columbia.edu Cc: kvm@vger.kernel.org, Will Deacon , Peter Shier , Paolo Bonzini , linux-arm-kernel@lists.infradead.org X-BeenThere: kvmarm@lists.cs.columbia.edu X-Mailman-Version: 2.1.14 Precedence: list List-Id: Where KVM/ARM decisions are made List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu This patch adds id_reg_info for ID_DFR1_EL1 to make it writable by userspace. Signed-off-by: Reiji Watanabe --- arch/arm64/kvm/sys_regs.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c index fbd335ac5e6b..dda7001959f6 100644 --- a/arch/arm64/kvm/sys_regs.c +++ b/arch/arm64/kvm/sys_regs.c @@ -859,6 +859,11 @@ static struct id_reg_info id_dfr0_el1_info = { .get_reset_val = get_reset_id_dfr0_el1, }; +static struct id_reg_info id_dfr1_el1_info = { + .sys_reg = SYS_ID_DFR1_EL1, + .ftr_check_types = S_FCT(ID_DFR1_MTPMU_SHIFT, FCT_LOWER_SAFE), +}; + /* * An ID register that needs special handling to control the value for the * guest must have its own id_reg_info in id_reg_info_table. @@ -869,6 +874,7 @@ static struct id_reg_info id_dfr0_el1_info = { #define GET_ID_REG_INFO(id) (id_reg_info_table[IDREG_IDX(id)]) static struct id_reg_info *id_reg_info_table[KVM_ARM_ID_REG_MAX_NUM] = { [IDREG_IDX(SYS_ID_DFR0_EL1)] = &id_dfr0_el1_info, + [IDREG_IDX(SYS_ID_DFR1_EL1)] = &id_dfr1_el1_info, [IDREG_IDX(SYS_ID_AA64PFR0_EL1)] = &id_aa64pfr0_el1_info, [IDREG_IDX(SYS_ID_AA64PFR1_EL1)] = &id_aa64pfr1_el1_info, [IDREG_IDX(SYS_ID_AA64DFR0_EL1)] = &id_aa64dfr0_el1_info, -- 2.34.0.rc1.387.gb447b232ab-goog _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm