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 03866C4332F for ; Wed, 17 Nov 2021 06:53:34 +0000 (UTC) Received: from mm01.cs.columbia.edu (mm01.cs.columbia.edu [128.59.11.253]) by mail.kernel.org (Postfix) with ESMTP id A619063231 for ; Wed, 17 Nov 2021 06:53:33 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org A619063231 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 5B7DD4B103; Wed, 17 Nov 2021 01:53:33 -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 pza4TjpYu0zs; Wed, 17 Nov 2021 01:53:31 -0500 (EST) Received: from mm01.cs.columbia.edu (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id B90AA4B0F5; Wed, 17 Nov 2021 01:53:31 -0500 (EST) Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id CFE1649FE6 for ; Wed, 17 Nov 2021 01:53:30 -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 XX8+ci+RvDb1 for ; Wed, 17 Nov 2021 01:53:29 -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 A8B64406E7 for ; Wed, 17 Nov 2021 01:53:29 -0500 (EST) Received: by mail-pl1-f202.google.com with SMTP id l3-20020a170902f68300b00142892d0a86so560791plg.13 for ; Tue, 16 Nov 2021 22:53:29 -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=ypuzSw/4IsFfP8hg4NDwxw7HgMl3eu3z0C9tC8AgYeo=; b=siCkxe7qZ1oXtFSP6PtWcHf9JCEx5P8MAKaxj8jRAZjR8TfN4niqzdgqkLMpfQaN0M rdSPyeCBX127qnv7K5czfSo/LvwTRLRDcXnzdNgvwE5IRGkZ8xGT03jhc8dwV/2RgR8P AWe670/xztmm7gjkaEv9Pa6NhvqJFPjCrCMYUmExN16V2e37k0q7bIznyTmf4bnI7Aap r46yZAFdRIAih428DLTPDiNrKorKOddvISj9yDv4t6ecov2NQayo4OZUfHgvYMaVQF3C 3mdP1/hAF5VI6iemKG4j4BoxYnitUxtZwT4DfeyfxKH3tSqDswy3euhaPi9Bxg2V5kZI Zxdg== 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=ypuzSw/4IsFfP8hg4NDwxw7HgMl3eu3z0C9tC8AgYeo=; b=AkJYXKnh4RMwJX1IsLsWQUZXxSa/11MAC6PwYNiYcvCPVJatN6LPLz57S1jEMPEPqI PeTMxs0RxGC6a99pnS6WeGfE3cxtwpEl9NpHjAe3FofnmlfFvNN2CtnqyWtvvGneeJHm UzGP2HQ3XKjRscydFNLCbWgF0oC/WOti4OQWAR4/O44hm0wlc44L124J/ednzs6c242z iCIXGsDsSyfWJiDfzrPB4Ave31tQiRui+tTR09cgiNxExJItuQZxDtCYWRFTOihN/yPR +QU2h0qTXarKFcB9qLh+5AaTSF8cKTuuiW7wQbs4iJZZ+7HXAJmyAgujs5IR7dDXYAvv dmsw== X-Gm-Message-State: AOAM532Wy3TdfZZiUycCheHbI1P2+c1ytFz7LWjInDbssJy8BTtE/dHZ roPa6xsBkdEuyh8e7i1P4plOdEukv1M= X-Google-Smtp-Source: ABdhPJwI9+DJbTQSPl234ZhGbVm/QrbU+RAS+b9ok3vE7uJCrhlFZeqke6v/rSWf7WrZlyw307Ylal6Fomo= X-Received: from reiji-vws-sp.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:3d59]) (user=reijiw job=sendgmr) by 2002:a05:6a00:21c2:b0:44c:fa0b:f72 with SMTP id t2-20020a056a0021c200b0044cfa0b0f72mr4939021pfj.13.1637132008899; Tue, 16 Nov 2021 22:53:28 -0800 (PST) Date: Tue, 16 Nov 2021 22:43:43 -0800 In-Reply-To: <20211117064359.2362060-1-reijiw@google.com> Message-Id: <20211117064359.2362060-14-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 13/29] KVM: arm64: Make ID_MMFR0_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_MMFR0_EL1 to make it writable by userspace. Signed-off-by: Reiji Watanabe --- arch/arm64/kvm/sys_regs.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c index dda7001959f6..5b16d422b37d 100644 --- a/arch/arm64/kvm/sys_regs.c +++ b/arch/arm64/kvm/sys_regs.c @@ -864,6 +864,12 @@ static struct id_reg_info id_dfr1_el1_info = { .ftr_check_types = S_FCT(ID_DFR1_MTPMU_SHIFT, FCT_LOWER_SAFE), }; +static struct id_reg_info id_mmfr0_el1_info = { + .sys_reg = SYS_ID_MMFR0_EL1, + .ftr_check_types = S_FCT(ID_MMFR0_INNERSHR_SHIFT, FCT_LOWER_SAFE) | + S_FCT(ID_MMFR0_OUTERSHR_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. @@ -874,6 +880,7 @@ static struct id_reg_info id_dfr1_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_MMFR0_EL1)] = &id_mmfr0_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, -- 2.34.0.rc1.387.gb447b232ab-goog _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm