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[209.132.180.67]) by mx.google.com with ESMTP id 60-v6si1351338plc.66.2018.03.01.01.33.06; Thu, 01 Mar 2018 01:33:21 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=redhat.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S966969AbeCAJcV (ORCPT + 99 others); Thu, 1 Mar 2018 04:32:21 -0500 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:58598 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S966675AbeCAJcT (ORCPT ); Thu, 1 Mar 2018 04:32:19 -0500 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id BA6A74084FEC; Thu, 1 Mar 2018 09:32:18 +0000 (UTC) Received: from [10.36.116.189] (ovpn-116-189.ams2.redhat.com [10.36.116.189]) by smtp.corp.redhat.com (Postfix) with ESMTP id 96890946B9; Thu, 1 Mar 2018 09:32:13 +0000 (UTC) Subject: Re: [PATCH v2 08/15] KVM: s390: interface to enable AP execution mode To: Tony Krowiak , linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org Cc: freude@de.ibm.com, schwidefsky@de.ibm.com, heiko.carstens@de.ibm.com, borntraeger@de.ibm.com, cohuck@redhat.com, kwankhede@nvidia.com, bjsdjshi@linux.vnet.ibm.com, pbonzini@redhat.com, alex.williamson@redhat.com, pmorel@linux.vnet.ibm.com, alifm@linux.vnet.ibm.com, mjrosato@linux.vnet.ibm.com, jjherne@linux.vnet.ibm.com, thuth@redhat.com, pasic@linux.vnet.ibm.com, fiuczy@linux.vnet.ibm.com, buendgen@de.ibm.com References: <1519741693-17440-1-git-send-email-akrowiak@linux.vnet.ibm.com> <1519741693-17440-9-git-send-email-akrowiak@linux.vnet.ibm.com> <47808b6f-9e6d-1f17-c26b-3e03d1f1e2ca@linux.vnet.ibm.com> From: David Hildenbrand Organization: Red Hat GmbH Message-ID: Date: Thu, 1 Mar 2018 10:32:12 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.5.2 MIME-Version: 1.0 In-Reply-To: <47808b6f-9e6d-1f17-c26b-3e03d1f1e2ca@linux.vnet.ibm.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.79 on 10.11.54.5 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.5]); Thu, 01 Mar 2018 09:32:18 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.5]); Thu, 01 Mar 2018 09:32:18 +0000 (UTC) for IP:'10.11.54.5' DOMAIN:'int-mx05.intmail.prod.int.rdu2.redhat.com' HELO:'smtp.corp.redhat.com' FROM:'david@redhat.com' RCPT:'' Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org >>> +EXPORT_SYMBOL(kvm_ap_enable_ie_mode); >>> diff --git a/arch/s390/kvm/kvm-s390.h b/arch/s390/kvm/kvm-s390.h >>> index 1b5621f..3142541 100644 >>> --- a/arch/s390/kvm/kvm-s390.h >>> +++ b/arch/s390/kvm/kvm-s390.h >>> @@ -18,6 +18,7 @@ >>> #include >>> #include >>> #include >>> +#include >>> >>> /* Transactional Memory Execution related macros */ >>> #define IS_TE_ENABLED(vcpu) ((vcpu->arch.sie_block->ecb & ECB_TE)) >>> >> What about VSIE? > That is a good question. I'm beginning to think introducing AP on second > level guests > ought to be postponed for now. I'm going to look into this further. >> Once you provide AP support to the guest, vSIE also has to be in place. But don't worry about vSIE, I think I know what we have to do. -- Thanks, David / dhildenb