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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id CC4F1C433F5 for ; Thu, 12 May 2022 09:08:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1351826AbiELJIO (ORCPT ); Thu, 12 May 2022 05:08:14 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44032 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1351820AbiELJIL (ORCPT ); Thu, 12 May 2022 05:08:11 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 7249D65D3F for ; Thu, 12 May 2022 02:08:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1652346489; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=y/j2DLJTcGndHtvQqB0oEoKz+UbynhWSX4BfSSQ/pzc=; b=bJhC7BRmcpJefxpBQ//BeJ1N/jvoueqs9S7an3mFBBdboYxNQUeJbAgod1qjT/cPTtu8Ar 1mQ27Glonpo9SDMaLxUvKeQ3VNDLb74o+tz79b+e3qmgp1UhByc6+NSl+BzjYv6k9sZs7n gvifIM/JflsPjyiLjvtep1ExDlvRt7I= Received: from mail-wr1-f70.google.com (mail-wr1-f70.google.com [209.85.221.70]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-98-vHYeiQhTOnCjBPETfxVAMQ-1; Thu, 12 May 2022 05:08:05 -0400 X-MC-Unique: vHYeiQhTOnCjBPETfxVAMQ-1 Received: by mail-wr1-f70.google.com with SMTP id j21-20020adfa555000000b0020adb9ac14fso1819482wrb.13 for ; Thu, 12 May 2022 02:08:05 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:message-id:date:mime-version:user-agent:subject :content-language:to:cc:references:from:organization:in-reply-to :content-transfer-encoding; bh=y/j2DLJTcGndHtvQqB0oEoKz+UbynhWSX4BfSSQ/pzc=; b=3UlVaLfDkTsYBi+PqXuvIb96r4ypvyFnP5H8LK521mWhnkFzHGXXYtLh7T8CHH4gFc +JV6J/Xr/xWgcuLbSmA2bNE9qbiR4P58+wASNzbhc3SaP7aLeWiOgx3oX5re0K0pjnmY nsaKVH6qXNL9IxGL5CFif1QwnS1Za0B95VwGqqP8PUULcyrS959/+lbU+ETclruRVNWt Yo8OnIYhibg5xV3bZZ6uVR++XqjujHQeu7RTJDfYrWWXV/XNwjz+fid0IR6U917MQT8f oE56YEkl/gIWlJLLf68X9/ybM/dW0sjFMc4Bk82NQ7sN84AkKNxj5rEFUtj2JlAgaswQ 9dyg== X-Gm-Message-State: AOAM533PvjvLkKrFzAsEg/VWDU6RpwXge3BFrdSv/DFr7BbPUAGKJGip wA69I7WfBUwY9BJQdLunWvCx5TFZWBYyfX2TDkKHGp7B3Fk81Foe6Vp8A4TPd4vE3q2d5hbt+xv BTi9tW/fEHOh+RshKKRa3kqtj X-Received: by 2002:a05:600c:2e12:b0:395:b6ae:f551 with SMTP id o18-20020a05600c2e1200b00395b6aef551mr7210540wmf.36.1652346484325; Thu, 12 May 2022 02:08:04 -0700 (PDT) X-Google-Smtp-Source: ABdhPJwUQEGT0+VpyQO5wHnlhPG2R7sv8wC84gKC8UIrDB+7/35B8+9BWk8Lk8wiU9+qsxrKMLibQA== X-Received: by 2002:a05:600c:2e12:b0:395:b6ae:f551 with SMTP id o18-20020a05600c2e1200b00395b6aef551mr7210512wmf.36.1652346484044; Thu, 12 May 2022 02:08:04 -0700 (PDT) Received: from ?IPV6:2003:cb:c701:d200:ee5d:1275:f171:136d? (p200300cbc701d200ee5d1275f171136d.dip0.t-ipconnect.de. [2003:cb:c701:d200:ee5d:1275:f171:136d]) by smtp.gmail.com with ESMTPSA id i25-20020a7bc959000000b003942a244ee4sm2390056wml.41.2022.05.12.02.08.02 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 12 May 2022 02:08:03 -0700 (PDT) Message-ID: Date: Thu, 12 May 2022 11:08:02 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.8.0 Subject: Re: [PATCH v9 1/3] s390x: KVM: ipte lock for SCA access should be contained in KVM Content-Language: en-US To: Pierre Morel , kvm@vger.kernel.org Cc: linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org, borntraeger@de.ibm.com, frankja@linux.ibm.com, cohuck@redhat.com, thuth@redhat.com, imbrenda@linux.ibm.com, hca@linux.ibm.com, gor@linux.ibm.com, wintera@linux.ibm.com, seiden@linux.ibm.com, nrb@linux.ibm.com References: <20220506092403.47406-1-pmorel@linux.ibm.com> <20220506092403.47406-2-pmorel@linux.ibm.com> From: David Hildenbrand Organization: Red Hat In-Reply-To: <20220506092403.47406-2-pmorel@linux.ibm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 06.05.22 11:24, Pierre Morel wrote: > The former check to chose between SIIF or not SIIF can be done > using the sclp.has_siif instead of accessing per vCPU structures > > When accessing the SCA, ipte lock and ipte_unlock do not need > to access any vcpu structures but only the KVM structure. > > Let's simplify the ipte handling. > > Signed-off-by: Pierre Morel Much better Reviewed-by: David Hildenbrand -- Thanks, David / dhildenb