Received: by 2002:a05:6a10:9848:0:0:0:0 with SMTP id x8csp4105649pxf; Tue, 23 Mar 2021 02:52:00 -0700 (PDT) X-Google-Smtp-Source: ABdhPJxdUk4NzUBPWd91pUi86Fy0ZD/etixNt3IrTTt04yqUUfSpLuwXF1yJbngN0DVEDm159tv1 X-Received: by 2002:a17:906:7f12:: with SMTP id d18mr3947677ejr.368.1616493120704; Tue, 23 Mar 2021 02:52:00 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1616493120; cv=none; d=google.com; s=arc-20160816; b=lVhDwM1f7zZrd+mI92g2eB1CMHHAGsgwdJ2ODG4WfG8vFvI2Pf+WyjufLek9C3MD6k omM3iQLO3QbYckNN1+A6SOJDM/xHp2+BZuGZ4NFi1ir+oqxsKqF1phHKS0P0tDrYx1KA erJrIsp8OgRlAC3r5EHZKyDBTmSKS0GsbdKiXipfGL4tlpwVPVTqFuuK2MZnXrxB03Qc Dar2PhK8+ighcu8IJx1igdStHDOEoV6D4wXwFOaolajguoFW4qaMJulLfkLXpMawDuN+ Yiujcq1Tv5rLEJEXLc8FFbcqVgc8l+MWhD/dBe3Ja8YfGTJtZUKqmgNTKfOebNeNh2N6 ug9Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:in-reply-to:content-disposition:mime-version :references:message-id:subject:cc:to:from:date:dkim-signature; bh=CFy34a5oRP6FBo34jkzCBDrM18ET5oxeV6C09KGor/M=; b=J8FCNE8o4KqkEDOD8AcZXLD+mSuOXmYyIGQBLDrNGRL1SE1Su2rEUQPORT37dAAj0u 3TXrUJHjh6GX2fEG5lBFneJZv9azS/nILmxGrktPbR95a89u51/5RUoI/+lCa0ucbyXb mZj4OAm76y19mNaHrBRLGHaKIk8u5mwo0jjtD9ip6MJnOQaLkkpsekSS8exjJDwNBRKB jYJTkRfDO7+/H+KjL16xy8EQWyQBhDOLITVEZo3GA5eC52mz8cOIXaKxbm3No8l+oX96 P34vXyeo39LzUAUDdXhh7a6xYevaHMjzRoFRQKAJ4CIhis3BdyDFi3UT+CvSVuCmfqxw Aa8Q== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@google.com header.s=20161025 header.b=fLnTZIW+; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=google.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id bx25si14035579edb.242.2021.03.23.02.51.38; Tue, 23 Mar 2021 02:52:00 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@google.com header.s=20161025 header.b=fLnTZIW+; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=google.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229746AbhCWJs3 (ORCPT + 99 others); Tue, 23 Mar 2021 05:48:29 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44242 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230195AbhCWJry (ORCPT ); Tue, 23 Mar 2021 05:47:54 -0400 Received: from mail-wr1-x434.google.com (mail-wr1-x434.google.com [IPv6:2a00:1450:4864:20::434]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5E725C061574 for ; Tue, 23 Mar 2021 02:47:54 -0700 (PDT) Received: by mail-wr1-x434.google.com with SMTP id 61so20029994wrm.12 for ; Tue, 23 Mar 2021 02:47:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=CFy34a5oRP6FBo34jkzCBDrM18ET5oxeV6C09KGor/M=; b=fLnTZIW+ncV0V4pak/1zB/4eGA2vCG0u8582JlaRuKJaekepck3Hi51f15dz/ZWlxz sQUvU6WQ+PnQl5ejeXthi6pN4WHunjYv9+RVag/vl+JjIlaFfcjUiJj2SdcFMJdSpcEN 4fbKMtXCvaxkH5oqnf983GkVGeMgxjerVGs3H0Xnw48l0XHHV5AgEkQisTeP3US4wJ1i M+MOMHNzAbxPAZ1zFxg5Qx8q7oLZhxqoomj51Gs9va0UXqRKA9cDLvg/wDDQO7/9rCI2 aYm0pJQgp8mSu9HyMPZBMGm3YhgaA2hVcvcQWQrBNUheqOFP+G6LTR1Y+m4Bp5w1e9+H feMA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=CFy34a5oRP6FBo34jkzCBDrM18ET5oxeV6C09KGor/M=; b=n4xb8YLZhiIdadJ7iUOL8baEoUoLpSO724BvKnU1GcFZAkqUjuEkS+3tVpNYYEin3z dQVQwbv2guYNTJJGgi+9JudRn4vk8HjITsm9zIvMitzQ1soE8R0aTkB8uwuORxhf0nGY 0sxklv2rvC9WKyrfPBrI6Zh3C56QCjI9HjxIy8ep5hYmsy+S30UmvLXTXqsc/Yx2Jn6z cAMsgS/gut+8FQaon7kJIEnHqeP7wA9uznHzDP5gBUIWwU41Vroeo5U3GjWMquuPHio0 gz1YZzqe67wMD8j1vkYV0uTqJt21GjEW/5hgptZHpnSyfA/meYXU+bugBIlToDeMA0sX OWIw== X-Gm-Message-State: AOAM532Mk6gAko5ih7O69fk/mymcHwJTvDLvhkyGFo5q3qwLY9F5kMQd L6M3l4CcvjdYeHAtaaHMxPzz3Q== X-Received: by 2002:a05:6000:4b:: with SMTP id k11mr3023308wrx.35.1616492873041; Tue, 23 Mar 2021 02:47:53 -0700 (PDT) Received: from google.com (230.69.233.35.bc.googleusercontent.com. [35.233.69.230]) by smtp.gmail.com with ESMTPSA id h62sm2322264wmf.37.2021.03.23.02.47.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 23 Mar 2021 02:47:52 -0700 (PDT) Date: Tue, 23 Mar 2021 09:47:50 +0000 From: Quentin Perret To: Marc Zyngier Cc: catalin.marinas@arm.com, james.morse@arm.com, julien.thierry.kdev@gmail.com, suzuki.poulose@arm.com, android-kvm@google.com, seanjc@google.com, mate.toth-pal@arm.com, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kernel-team@android.com, kvmarm@lists.cs.columbia.edu, tabba@google.com, ardb@kernel.org, mark.rutland@arm.com, dbrazdil@google.com Subject: Re: [PATCH v2 3/3] KVM: arm64: Drop the CPU_FTR_REG_HYP_COPY infrastructure Message-ID: References: <20210322175639.801566-1-maz@kernel.org> <20210322175639.801566-4-maz@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210322175639.801566-4-maz@kernel.org> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Monday 22 Mar 2021 at 17:56:39 (+0000), Marc Zyngier wrote: > Now that the read_ctr macro has been specialised for nVHE, > the whole CPU_FTR_REG_HYP_COPY infrastrcture looks completely > overengineered. > > Simplify it by populating the two u64 quantities (MMFR0 and 1) > that the hypervisor need. > > Signed-off-by: Marc Zyngier Reviewed-by: Quentin Perret Thanks, Quentin