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 X-Spam-Level: X-Spam-Status: No, score=-8.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CE20AC433EF for ; Mon, 20 Sep 2021 18:09:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B5D8561268 for ; Mon, 20 Sep 2021 18:09:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1352671AbhITSKn (ORCPT ); Mon, 20 Sep 2021 14:10:43 -0400 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:23691 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1358505AbhITSG5 (ORCPT ); Mon, 20 Sep 2021 14:06:57 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1632161126; 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=MQ2nEJldCi7rrPXAbLdRM2HtG7wBW/RDodqNONHFaZI=; b=F2pRRfTNFJHmB/wlADRyrEA9xvTXJEzP4zysDfJW8Q2C5mBeVjihsw0mY9sdA3UgvYKIle ou4p/ZN+JLKlk4GH8V84NqAHrGkxLDuX3Y6zRP9vGRvG6+DYMjl/Es5Bk1UuyD9N/fAe71 MXsAz+Kp6qAFnfgN7+k4siG/vmGoFHs= Received: from mail-wr1-f69.google.com (mail-wr1-f69.google.com [209.85.221.69]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-157-KLm24dvXOnCSare0ZkuQQA-1; Mon, 20 Sep 2021 14:05:25 -0400 X-MC-Unique: KLm24dvXOnCSare0ZkuQQA-1 Received: by mail-wr1-f69.google.com with SMTP id r9-20020a5d4989000000b0015d0fbb8823so6752177wrq.18 for ; Mon, 20 Sep 2021 11:05:25 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=MQ2nEJldCi7rrPXAbLdRM2HtG7wBW/RDodqNONHFaZI=; b=3nwvbEgW8a44v5lPEduw1vfpBppCefjFdydYbqbTyef7Km4TaXcGyOPVTvmPVg4r1y LSTkSpGz2czCTqBrhJMrAhRdJaj0WuMxnjSTMLJ6NnKSz/XtsRmLlMRAy+yKKmJuj47/ aekvHblruTtvKD3NagTT25k2nXr1cxVrNas//TBQ8BLTgLtF4MPb6OyxxsjLgEp3mMyS iHYVND42XXOd1axwQGB8/BtUmld5MTopPFNK9MQLBYxNlLgzifLCRa6TcXKkhnzl6v1z RWH6UwnL8vSOlHaqRr5hZNxARMq4umEwOzMkhojmWaYEZXturiGczaa3+7wPbxDH1EIj hwzw== X-Gm-Message-State: AOAM530OrkoQkbNISvjsF0l9anFaKKLJc4ZUx3S2Q5Mvrw7JcQETmJWx qpVr0TsZ8BftLOHg9sKnZIShkFSvWYNljSH7PslkfNGTgxeNggzGk6iOMYn5GznrdiMJK50xWsz 8tUlhmGlXB/fbAoVZ7aoJLw== X-Received: by 2002:a5d:598c:: with SMTP id n12mr29456628wri.391.1632161124509; Mon, 20 Sep 2021 11:05:24 -0700 (PDT) X-Google-Smtp-Source: ABdhPJyYp4hW7E1g6b+/rISmMbNzmIAqnwgwgNMeutkchln13LhBXc0BGdLZt9ZAqx8AsyogmjkBZg== X-Received: by 2002:a5d:598c:: with SMTP id n12mr29456593wri.391.1632161124284; Mon, 20 Sep 2021 11:05:24 -0700 (PDT) Received: from ?IPv6:2001:b07:6468:f312:c8dd:75d4:99ab:290a? ([2001:b07:6468:f312:c8dd:75d4:99ab:290a]) by smtp.gmail.com with ESMTPSA id l15sm207553wme.42.2021.09.20.11.05.20 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 20 Sep 2021 11:05:23 -0700 (PDT) Subject: Re: [PATCH 0/1] KVM: s390: backport for stable of "KVM: s390: index To: Christian Borntraeger , stable@vger.kernel.org Cc: gregkh@linuxfoundation.org, KVM , Cornelia Huck , Janosch Frank , David Hildenbrand , linux-s390 , Thomas Huth , Claudio Imbrenda , =?UTF-8?B?UmFkaW0gS3LEjW3DocWZ?= , Nitesh Narayan Lal , Halil Pasic References: <20210920150616.15668-1-borntraeger@de.ibm.com> From: Paolo Bonzini Message-ID: Date: Mon, 20 Sep 2021 20:05:17 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 MIME-Version: 1.0 In-Reply-To: <20210920150616.15668-1-borntraeger@de.ibm.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-s390@vger.kernel.org On 20/09/21 17:06, Christian Borntraeger wrote: > here is a backport for 4.19 of > commit a3e03bc1368 ("KVM: s390: index kvm->arch.idle_mask by vcpu_idx") > This basically removes the kick_mask parts that were introduced with > kernel 5.0 and fixes up the location of the idle_mask to the older > place. > > FWIW, it might be a good idea to also backport > 8750e72a79dd ("KVM: remember position in kvm->vcpus array") to avoid > a performance regression for large guests (many vCPUs) when this patch > is applied. > @Paolo Bonzini, would you be ok with 8750e72a79dd in older stable releases? Sure, I suppose you're going to send a separate backport that I can ack. Paolo