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Thu, 23 Jul 2020 10:48:45 +0000 Received: from d06av22.portsmouth.uk.ibm.com (d06av22.portsmouth.uk.ibm.com [9.149.105.58]) by b06cxnps4075.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 06NAmfY161407296 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 23 Jul 2020 10:48:41 GMT Received: from d06av22.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 5C7E64C050; Thu, 23 Jul 2020 10:48:41 +0000 (GMT) Received: from d06av22.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 302964C044; Thu, 23 Jul 2020 10:48:38 +0000 (GMT) Received: from [9.199.40.160] (unknown [9.199.40.160]) by d06av22.portsmouth.uk.ibm.com (Postfix) with ESMTP; Thu, 23 Jul 2020 10:48:37 +0000 (GMT) Subject: Re: [PATCH 0/7] powerpc/watchpoint: 2nd DAWR kvm enablement + selftests To: mpe@ellerman.id.au, paulus@samba.org References: <20200723102058.312282-1-ravi.bangoria@linux.ibm.com> From: Ravi Bangoria Message-ID: Date: Thu, 23 Jul 2020 16:18:37 +0530 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <20200723102058.312282-1-ravi.bangoria@linux.ibm.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.235, 18.0.687 definitions=2020-07-23_03:2020-07-23, 2020-07-23 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 spamscore=0 impostorscore=0 clxscore=1015 suspectscore=0 phishscore=0 malwarescore=0 priorityscore=1501 adultscore=0 mlxlogscore=942 mlxscore=0 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2006250000 definitions=main-2007230076 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: christophe.leroy@c-s.fr, Ravi Bangoria , mikey@neuling.org, kvm@vger.kernel.org, jniethe5@gmail.com, linux-kernel@vger.kernel.org, npiggin@gmail.com, kvm-ppc@vger.kernel.org, linux-kselftest@vger.kernel.org, rogealve@br.ibm.com, pedromfc@br.ibm.com, pbonzini@redhat.com, linuxppc-dev@lists.ozlabs.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On 7/23/20 3:50 PM, Ravi Bangoria wrote: > Patch #1, #2 and #3 enables p10 2nd DAWR feature for Book3S kvm guest. DAWR > is a hypervisor resource and thus H_SET_MODE hcall is used to set/unset it. > A new case H_SET_MODE_RESOURCE_SET_DAWR1 is introduced in H_SET_MODE hcall > for setting/unsetting 2nd DAWR. Also, new capability KVM_CAP_PPC_DAWR1 has > been added to query 2nd DAWR support via kvm ioctl. > > This feature also needs to be enabled in Qemu to really use it. I'll reply > link to qemu patches once I post them in qemu-devel mailing list. Qemu patches: https://lore.kernel.org/kvm/20200723104220.314671-1-ravi.bangoria@linux.ibm.com