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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 5F0C4ECAAD5 for ; Wed, 7 Sep 2022 02:41:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:Cc:To:Subject:Message-ID:Date:From: In-Reply-To:References:MIME-Version:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=nbcUieRzy0r7ZJd20BNlptGx7JhFTDRJH28u7i/kogg=; b=CULRE/j+dDGp2x 45jhbep8ouuS8ZEa/lTpcSqAPN/vEtjNpfd3lJnLx/Pqh+1fCvHlewad8gBQISEChYZQ8IbIYuicL TXOGnDFrnEHU88Iw6ZDWKn5SiOiGjwsdZuR2IUuK1vtUSm2L1EmKVWW3kn3O71oUk/sLPCgWos9PG Tobs96OqfBK2WtEHeEX7P1Gvzmce4jWuOoeeTfSMQymdjCsqqh1fYNWae2XM5b1WIEyFytBhHnRGr ENl2qpBdH5VZg4YW8MRs0bsJZYNSoFjZpg2Fi1HNrGN+/hDhq8cWlWS9za5c+F6osesaAtRMAMrur sig+J2hwSURr6Pl+EoSA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1oVkzT-001gpH-3h; Wed, 07 Sep 2022 02:40:35 +0000 Received: from mail-vs1-xe30.google.com ([2607:f8b0:4864:20::e30]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1oVkzP-001gmE-4b for linux-arm-kernel@lists.infradead.org; Wed, 07 Sep 2022 02:40:32 +0000 Received: by mail-vs1-xe30.google.com with SMTP id o123so13584022vsc.3 for ; Tue, 06 Sep 2022 19:40:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:from:to:cc:subject:date; bh=nRLryB5Xf6lBklSjFILLPLap9evfM0qCWn2PvmAqML0=; b=UJVC3Gng8U3UmQUkRK7cXsWmmJL7WkoCXMlUIomBRYjM86jMhNimaEYMGH9NI5etdf 9dXdbKNrB3zpNZCcS5BDKaFI2z6VCPAUJI2fvx+yODlYzfl7JF4X78Lw2bXsJ110PQBE gWjQBfPs2Xv7o7gKddMwPZNmftTqOvcoK3U987SWDvW1PaCsLcXTWJEZgE4dEimJSWOQ iNX8zcjUof8AGeIgkZ8aP4qrAr7mK7cOlGo5XemApDnmELEDIjjUxbsKhUc7WCKCKAWB 5l1qhf/8q+kZvglYXBSvov+hUlZtTqxzGRm1TqvtPO7gsLSZeq93rx1+qAmg3OjPCivG JmFQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:x-gm-message-state:from:to:cc:subject:date; bh=nRLryB5Xf6lBklSjFILLPLap9evfM0qCWn2PvmAqML0=; b=w3mHLc884bwYYtpDVlwTB9dhADclc72RkYHRbKF5PIsC1Pbjj7m4s4dz4z85ms+gvl zlsXzsGd1lUzbTSQRqJEC87pqrxK2SwtdxXYP32bZJPyGbitJYDIO1BgriTK6KtNSQ5D 4hIG2pmZDeIbX4wYNqHP5Q6yJK7oa0fAyOSylBEbzF42WTD+3EZLP/add3SwMr3k0fZp K5GqADgqfEzkGcuxaTzXtOuI1SwZQr+WzXM1WigQbCI4N9rO5d0ekgY+4tkDk4O1o+U+ aqHmRKmBflksN9HDhlvFu1fmoJ+8XJmEBnp3o2a4JapLsWMtg5ieum9zP02caiy2dGdL cibA== X-Gm-Message-State: ACgBeo3vlqsL9mbWoT5AiPc2tKcQhzg7o9LnJD8V1iti1RX/zC6NdnJB 48a+VkBLaW1pPZy8vUFanZiqpAkCgF9OyZRLGvbvMw== X-Google-Smtp-Source: AA6agR44iTfe4vWGY8NVG62qnMuNdo07u4WWB0Hq3elNrucYrkLoB5SpIfHwPyNFT59Q2eNPmDt6Pc0Rc8oKHU/TE/A= X-Received: by 2002:a67:fdd0:0:b0:397:c028:db6a with SMTP id l16-20020a67fdd0000000b00397c028db6amr477394vsq.58.1662518426470; Tue, 06 Sep 2022 19:40:26 -0700 (PDT) MIME-Version: 1.0 References: <20220902154804.1939819-1-oliver.upton@linux.dev> <20220902154804.1939819-6-oliver.upton@linux.dev> In-Reply-To: <20220902154804.1939819-6-oliver.upton@linux.dev> From: Reiji Watanabe Date: Tue, 6 Sep 2022 19:40:10 -0700 Message-ID: Subject: Re: [PATCH v2 5/7] KVM: arm64: Add a visibility bit to ignore user writes To: Oliver Upton Cc: Marc Zyngier , James Morse , Alexandru Elisei , Suzuki K Poulose , Catalin Marinas , Will Deacon , Linux ARM , kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org, linux-kernel@vger.kernel.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220906_194031_225649_90CCFD57 X-CRM114-Status: GOOD ( 10.01 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Fri, Sep 2, 2022 at 8:48 AM Oliver Upton wrote: > > We're about to ignore writes to AArch32 ID registers on AArch64-only > systems. Add a bit to indicate a register is handled as write ignore > when accessed from userspace. > > Signed-off-by: Oliver Upton Reviewed-by: Reiji Watanabe _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel