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Thu, 19 Dec 2019 21:50:52 +0000 (GMT) Received: from b03ledav001.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 139AC6E052; Thu, 19 Dec 2019 21:50:52 +0000 (GMT) Received: from suka-w540.localdomain (unknown [9.70.94.45]) by b03ledav001.gho.boulder.ibm.com (Postfix) with ESMTP; Thu, 19 Dec 2019 21:50:51 +0000 (GMT) Received: by suka-w540.localdomain (Postfix, from userid 1000) id 77F9B2E0EC5; Thu, 19 Dec 2019 13:50:50 -0800 (PST) Date: Thu, 19 Dec 2019 13:50:50 -0800 From: Sukadev Bhattiprolu To: Bharata B Rao Subject: Re: [PATCH V3 2/2] KVM: PPC: Implement H_SVM_INIT_ABORT hcall Message-ID: <20191219215050.GA22629@us.ibm.com> References: <20191215021104.GA27378@us.ibm.com> <20191215021208.GB27378@us.ibm.com> <20191216032911.GA25495@in.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20191216032911.GA25495@in.ibm.com> X-Operating-System: Linux 2.0.32 on an i486 User-Agent: Mutt/1.10.1 (2018-07-13) X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.95,18.0.572 definitions=2019-12-19_07:2019-12-17,2019-12-19 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 suspectscore=0 clxscore=1015 priorityscore=1501 impostorscore=0 mlxscore=0 phishscore=0 bulkscore=0 lowpriorityscore=0 adultscore=0 spamscore=0 mlxlogscore=667 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-1910280000 definitions=main-1912190162 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linuxram@us.ibm.com, kvm-ppc@vger.kernel.org, linux-mm@kvack.org, linuxppc-dev@lists.ozlabs.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" Bharata B Rao [bharata@linux.ibm.com] wrote: > On Sat, Dec 14, 2019 at 06:12:08PM -0800, Sukadev Bhattiprolu wrote: > > +unsigned long kvmppc_h_svm_init_abort(struct kvm *kvm) > > +{ > > + int i; > > + > > + if (!(kvm->arch.secure_guest & KVMPPC_SECURE_INIT_START)) > > + return H_UNSUPPORTED; > > + > > + for (i = 0; i < KVM_ADDRESS_SPACE_NUM; i++) { > > + struct kvm_memory_slot *memslot; > > + struct kvm_memslots *slots = __kvm_memslots(kvm, i); > > + > > + if (!slots) > > + continue; > > + > > + kvm_for_each_memslot(memslot, slots) > > + kvmppc_uvmem_drop_pages(memslot, kvm, false); > > + } > > You need to hold srcu_read_lock(&kvm->srcu) here. Yes, thanks! Fixed in the next version. Sukadev