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 E7057C433F5 for ; Wed, 3 Nov 2021 06:28:22 +0000 (UTC) Received: from mm01.cs.columbia.edu (mm01.cs.columbia.edu [128.59.11.253]) by mail.kernel.org (Postfix) with ESMTP id 8F54861177 for ; Wed, 3 Nov 2021 06:28:22 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 8F54861177 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 364894B14C; Wed, 3 Nov 2021 02:28:22 -0400 (EDT) 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 wlcs5Q7Shbv2; Wed, 3 Nov 2021 02:28:20 -0400 (EDT) Received: from mm01.cs.columbia.edu (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 0BBAB4B090; Wed, 3 Nov 2021 02:28:19 -0400 (EDT) Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 1FF6E4B165 for ; Wed, 3 Nov 2021 02:28:18 -0400 (EDT) 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 Oiq8U0HpqUoU for ; Wed, 3 Nov 2021 02:28:16 -0400 (EDT) Received: from mail-yb1-f202.google.com (mail-yb1-f202.google.com [209.85.219.202]) by mm01.cs.columbia.edu (Postfix) with ESMTPS id AF6B24B090 for ; Wed, 3 Nov 2021 02:28:16 -0400 (EDT) Received: by mail-yb1-f202.google.com with SMTP id y125-20020a25dc83000000b005c2326bf744so2633037ybe.21 for ; Tue, 02 Nov 2021 23:28:16 -0700 (PDT) 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=VrJ07b06nc9KbJLXSj5zehnLehuxuLDRP/US8C6hfE0=; b=ZAVnIZTP+LHKUx7NfjJFSSU8Rs4NWQlt+WSmFir11XcrpVf8vIvANzLB94WHJ6Bf60 k5sOQZOlmPiZcIyPnZc5h1IMa4HEIbaZcPfZylu7pLpRq3Wo7z+BnTX0y7I5wYkCFuoG +eGMgfwCzcXcJHpSeGXyJ+tSsUCHmpwt6ur6pHCiVAdNfjEHT3yYhu+lsxVQ5D2V2KIC qvaK+4T5DbMnZpK3Z7YkucwN2EtSX/SR0NY/oCqRV2gxlQCjWzPRe4HiWqu2PEQkt71B aKqnarAD6+0QHqmgo1zo2USfPJbv7FQerLfy1iC4jnm1iC7S985cSaZMnGyUSznXz1F/ su2g== 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=VrJ07b06nc9KbJLXSj5zehnLehuxuLDRP/US8C6hfE0=; b=ZFJi/PUgyoABmtkLMYulXw40aAlRFEtzAJA2Rer8K9Aa1Ky5qG2IYvU+a8elQHKkzE vJHpKVKMkdf1lkGWlVPO0jlr4ITqEHsFeTy8I0KgM1kbdvf+ghnHW7X9qabgDDqJjuTp Hb42ieaQs+ujhCabwDUxfIRCkk41++6BxguaQPcoCtZZ7diWToIJE+cg8OURsLMvWUC+ pSZg4Nf32h5j9Q/ecyG122dW9f8CkV2i48MeuHPU+LsX4z4stYe5vcQQ2s2usnDZZ8Au cy8hDYtqaYpgJktY5ANuxCoQ7UYx77ii6mg7LlTTVvuRf3W+5YtO4Y3vGp21kQ8JGq/G WtsQ== X-Gm-Message-State: AOAM532feJ3/KcvnUmuiOSkqqVlO+fg1U4w7ywqpn8QktNf+f7F4hUyu toUZNzGegumE2jqwuVCI1w/zAldNw24= X-Google-Smtp-Source: ABdhPJynSsKsRymAV6oD+adfOhHtjHV5sbxdoRvZmrjUVSSHvV6cZcysjNYwYVj1A9HptlBdbRlQUwIXynU= X-Received: from reiji-vws-sp.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:3d59]) (user=reijiw job=sendgmr) by 2002:a25:5d08:: with SMTP id r8mr43342773ybb.227.1635920896128; Tue, 02 Nov 2021 23:28:16 -0700 (PDT) Date: Tue, 2 Nov 2021 23:25:05 -0700 In-Reply-To: <20211103062520.1445832-1-reijiw@google.com> Message-Id: <20211103062520.1445832-14-reijiw@google.com> Mime-Version: 1.0 References: <20211103062520.1445832-1-reijiw@google.com> X-Mailer: git-send-email 2.33.1.1089.g2158813163f-goog Subject: [RFC PATCH v2 13/28] 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 8abd3f6fd667..f04067fdaa85 100644 --- a/arch/arm64/kvm/sys_regs.c +++ b/arch/arm64/kvm/sys_regs.c @@ -835,6 +835,11 @@ 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. @@ -845,6 +850,7 @@ 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, -- 2.33.1.1089.g2158813163f-goog _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm