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=-3.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS 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 854C5C10F29 for ; Tue, 17 Mar 2020 09:57:38 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 54DEF206EC for ; Tue, 17 Mar 2020 09:57:38 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="UpO1BhzM" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 54DEF206EC Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:55356 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jE8yf-0007lN-Hz for qemu-devel@archiver.kernel.org; Tue, 17 Mar 2020 05:57:37 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:35032) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jE8xo-0006dQ-Jm for qemu-devel@nongnu.org; Tue, 17 Mar 2020 05:56:45 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1jE8xn-0007VB-Hp for qemu-devel@nongnu.org; Tue, 17 Mar 2020 05:56:44 -0400 Received: from us-smtp-delivery-74.mimecast.com ([63.128.21.74]:21822) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1jE8xn-0007Qf-AQ for qemu-devel@nongnu.org; Tue, 17 Mar 2020 05:56:43 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1584439003; 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=Ov0W2bPqJ9/ITW4yjDNJwyUNzmiJKxsnJPPaGFxowLc=; b=UpO1BhzMkUFJv14sGfZecFLttg7jaqpfP9AyxIuYzndvVFTIhzV4gwRWWKkXsMVlNLWgox Jq+gTRAjZJNhODLC7fSEjdWtsZZ29C0AWMcgMegnMj0n7HO6XyrP+HwjVeK5BIE775Rbf9 JH5DVLkJ3wlcU8E61ev0xrD08LWwTzo= 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-360-bMqQeaXFPB-Ivre_TrUSJQ-1; Tue, 17 Mar 2020 05:56:41 -0400 X-MC-Unique: bMqQeaXFPB-Ivre_TrUSJQ-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 4A7C71005F61; Tue, 17 Mar 2020 09:56:40 +0000 (UTC) Received: from gondolin (ovpn-113-156.ams2.redhat.com [10.36.113.156]) by smtp.corp.redhat.com (Postfix) with ESMTP id 75F4560BF3; Tue, 17 Mar 2020 09:56:36 +0000 (UTC) Date: Tue, 17 Mar 2020 10:56:33 +0100 From: Cornelia Huck To: Janosch Frank Subject: Re: [PATCH v9 05/15] s390x: protvirt: KVM intercept changes Message-ID: <20200317105633.328bcda7.cohuck@redhat.com> In-Reply-To: <20200311132151.172389-6-frankja@linux.ibm.com> References: <20200311132151.172389-1-frankja@linux.ibm.com> <20200311132151.172389-6-frankja@linux.ibm.com> Organization: Red Hat GmbH MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 63.128.21.74 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: borntraeger@de.ibm.com, qemu-s390x@nongnu.org, qemu-devel@nongnu.org, david@redhat.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On Wed, 11 Mar 2020 09:21:41 -0400 Janosch Frank wrote: > Protected VMs no longer intercept with code 4 for an instruction > interception. Instead they have codes 104 and 108 for protected > instruction interception and protected instruction notification > respectively. > > The 104 mirrors the 4 interception. > > The 108 is a notification interception to let KVM and QEMU know that > something changed and we need to update tracking information or > perform specific tasks. It's currently taken for the following > instructions: > > * spx (To inform about the changed prefix location) > * sclp (On incorrect SCCB values, so we can inject a IRQ) > * sigp (All but "stop and store status") > * diag308 (Subcodes 0/1) > > Of these exits only sclp errors, state changing sigps and diag308 will > reach QEMU. QEMU will do its parts of the job, while the ultravisor > has done the instruction part of the job. > > Signed-off-by: Janosch Frank > Reviewed-by: David Hildenbrand > Reviewed-by: Christian Borntraeger > --- > target/s390x/kvm.c | 4 ++++ > 1 file changed, 4 insertions(+) Reviewed-by: Cornelia Huck