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=-2.4 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no 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 9A664C35247 for ; Wed, 5 Feb 2020 17:59:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 702E924676 for ; Wed, 5 Feb 2020 17:59:49 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="bIb9P4ti" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727104AbgBER7s (ORCPT ); Wed, 5 Feb 2020 12:59:48 -0500 Received: from us-smtp-delivery-1.mimecast.com ([207.211.31.120]:40687 "EHLO us-smtp-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726822AbgBER7s (ORCPT ); Wed, 5 Feb 2020 12:59:48 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1580925587; 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:openpgp:openpgp; bh=CLct8dLigCuQCFLSQJP+cZ3MQBISZc9MVp91MOh9iZ8=; b=bIb9P4tiBE8ytLX3Imev1YYY/rLuAWcp/a3J5NNHqdU95EiS5AXBOfSKxeE3N/updh54+v 6SRMFWy9JCVspUhi/B5AQVk/GUEp404TJfhjcX2PN+pF7wlS5LswACxN3AVFUt9+n7vL+0 6mc1E7X/ci1jg1hhmtmddXi7/mD3yFU= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-297-bUzcbmdxPqKw_9tratf8hQ-1; Wed, 05 Feb 2020 12:59:43 -0500 X-MC-Unique: bUzcbmdxPqKw_9tratf8hQ-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id C5CA8800D54; Wed, 5 Feb 2020 17:59:41 +0000 (UTC) Received: from thuth.remote.csb (ovpn-116-186.ams2.redhat.com [10.36.116.186]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 763518CCFB; Wed, 5 Feb 2020 17:59:37 +0000 (UTC) Subject: Re: [RFCv2 28/37] KVM: s390: protvirt: Add program exception injection To: Christian Borntraeger , Janosch Frank Cc: KVM , Cornelia Huck , David Hildenbrand , Ulrich Weigand , Claudio Imbrenda , Andrea Arcangeli References: <20200203131957.383915-1-borntraeger@de.ibm.com> <20200203131957.383915-29-borntraeger@de.ibm.com> From: Thomas Huth Openpgp: preference=signencrypt Message-ID: Date: Wed, 5 Feb 2020 18:59:35 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.9.0 MIME-Version: 1.0 In-Reply-To: <20200203131957.383915-29-borntraeger@de.ibm.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org On 03/02/2020 14.19, Christian Borntraeger wrote: > From: Janosch Frank > > Only two program exceptions can be injected for a protected guest: > specification and operand > > Both have a code in offset 248 of the state description, as the lowcore > is not accessible by KVM for such guests. What do you mean with offset 248 here? You only touch the iictl field here, and looking at patch 14/37, iictl is at offset 0x55 ...? Thomas