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Violators will be prosecuted; Tue, 23 Jan 2018 14:40:09 -0000 Received: from d06av25.portsmouth.uk.ibm.com (d06av25.portsmouth.uk.ibm.com [9.149.105.61]) by b06cxnps4074.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id w0NEe8ZG43450394; Tue, 23 Jan 2018 14:40:08 GMT Received: from d06av25.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 5A08C11C050; Tue, 23 Jan 2018 14:33:46 +0000 (GMT) Received: from d06av25.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 0AAED11C058; Tue, 23 Jan 2018 14:33:46 +0000 (GMT) Received: from mschwideX1 (unknown [9.152.212.220]) by d06av25.portsmouth.uk.ibm.com (Postfix) with ESMTP; Tue, 23 Jan 2018 14:33:45 +0000 (GMT) Date: Tue, 23 Jan 2018 15:40:06 +0100 From: Martin Schwidefsky To: Cornelia Huck Cc: linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org, kvm@vger.kernel.org, Heiko Carstens , Christian Borntraeger , Paolo Bonzini , David Hildenbrand , Greg Kroah-Hartman , Jon Masters , Marcus Meissner , Jiri Kosina Subject: Re: [PATCH 2/5] s390/alternative: use a copy of the facility bit mask In-Reply-To: <20180123145947.72bb1cd2.cohuck@redhat.com> References: <1516712825-2917-1-git-send-email-schwidefsky@de.ibm.com> <1516712825-2917-3-git-send-email-schwidefsky@de.ibm.com> <20180123145947.72bb1cd2.cohuck@redhat.com> X-Mailer: Claws Mail 3.13.2 (GTK+ 2.24.30; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 x-cbid: 18012314-0040-0000-0000-00000407EAF0 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 18012314-0041-0000-0000-0000260B6CB8 Message-Id: <20180123154006.14fb7ce0@mschwideX1> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:,, definitions=2018-01-23_04:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 impostorscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1709140000 definitions=main-1801230201 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 23 Jan 2018 14:59:47 +0100 Cornelia Huck wrote: > On Tue, 23 Jan 2018 14:07:02 +0100 > Martin Schwidefsky wrote: > > > To be able to switch off specific CPU alternatives with kernel parameters > > make a copy of the facility bit mask provided by STFLE and use the copy > > for the decision to apply an alternative. > > > > Signed-off-by: Martin Schwidefsky > > --- > > arch/s390/include/asm/facility.h | 18 ++++++++++++++++++ > > arch/s390/include/asm/lowcore.h | 3 ++- > > arch/s390/kernel/alternative.c | 3 ++- > > arch/s390/kernel/early.c | 3 +++ > > arch/s390/kernel/setup.c | 4 +++- > > arch/s390/kernel/smp.c | 4 +++- > > 6 files changed, 31 insertions(+), 4 deletions(-) > > You have dropped various r-bs (including mine). Has this patch been > changed? (Doesn't look like it.) Added your and Davids r-b to patch #2, as well as your a-b to patch #4. -- blue skies, Martin. "Reality continues to ruin my life." - Calvin.