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Wed, 19 May 2021 11:52:34 +0000 (GMT) Received: from b01ledav006.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 430B2AC05E; Wed, 19 May 2021 11:52:34 +0000 (GMT) Received: from cpe-172-100-179-72.stny.res.rr.com (unknown [9.85.177.219]) by b01ledav006.gho.pok.ibm.com (Postfix) with ESMTP; Wed, 19 May 2021 11:52:34 +0000 (GMT) Subject: Re: [PATCH v16 00/14] s390/vfio-ap: dynamic configuration support To: Halil Pasic Cc: linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, jjherne@linux.ibm.com, freude@linux.ibm.com, borntraeger@de.ibm.com, cohuck@redhat.com, mjrosato@linux.ibm.com, alex.williamson@redhat.com, kwankhede@nvidia.com, fiuczy@linux.ibm.com References: <20210510164423.346858-1-akrowiak@linux.ibm.com> <60e91bd2-0802-a3af-11a3-fa6dd8146d90@linux.ibm.com> <20210518185439.72a4d37e.pasic@linux.ibm.com> From: Tony Krowiak Message-ID: Date: Wed, 19 May 2021 07:52:33 -0400 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.8.1 MIME-Version: 1.0 In-Reply-To: <20210518185439.72a4d37e.pasic@linux.ibm.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Content-Language: en-US X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: fyMY2kAaw7biDif2qhjLPCxhQ_YVuKUj X-Proofpoint-GUID: hCiMDr8QSkhw1LWpNgD19hesV2wOgxs- X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.391,18.0.761 definitions=2021-05-19_05:2021-05-19,2021-05-19 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 mlxscore=0 phishscore=0 priorityscore=1501 clxscore=1015 mlxlogscore=999 adultscore=0 suspectscore=0 spamscore=0 bulkscore=0 malwarescore=0 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2104190000 definitions=main-2105190076 Precedence: bulk List-ID: X-Mailing-List: linux-s390@vger.kernel.org On 5/18/21 12:54 PM, Halil Pasic wrote: > On Tue, 18 May 2021 09:26:01 -0400 > Tony Krowiak wrote: > >> Ping! > I'm already working on it. I went trough the all the changes once, and > I'm currently trying to understand the new usages of > matrix_mdev->wait_for_kvm and matrix_mdev->kvm_busy. You seem to be > using these a new purpose... I merely added that to the commit function which sets the masks in the guest's APCB. This is the same usage as in the vfio_ap_mdev_unset_kvm() function, to prevent a lockdep splat similar to the scenario for which those fields were added in the first place. > > Regards, > Halil