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Tue, 5 Mar 2024 10:53:22 GMT Received: from hu-pkondeti-hyd.qualcomm.com (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.40; Tue, 5 Mar 2024 02:53:14 -0800 Date: Tue, 5 Mar 2024 16:23:12 +0530 From: Pavan Kondeti To: Elliot Berman CC: Alex Elder , Srinivas Kandagatla , Murali Nalajal , Trilok Soni , Srivatsa Vaddagiri , Carl van Schaik , Philip Derrin , Prakruthi Deepak Heragu , Jonathan Corbet , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Catalin Marinas , Will Deacon , Konrad Dybcio , Bjorn Andersson , Dmitry Baryshkov , "Fuad Tabba" , Sean Christopherson , "Andrew Morton" , , , , , , Subject: Re: [PATCH v17 01/35] docs: gunyah: Introduce Gunyah Hypervisor Message-ID: <6f98238d-25d9-4120-810a-4b8b19c1ef5d@quicinc.com> References: <20240222-gunyah-v17-0-1e9da6763d38@quicinc.com> <20240222-gunyah-v17-1-1e9da6763d38@quicinc.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <20240222-gunyah-v17-1-1e9da6763d38@quicinc.com> X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nalasex01a.na.qualcomm.com (10.47.209.196) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: WVHQJJ_TVjtAPqZKVZkx35bx7TCdrEtx X-Proofpoint-ORIG-GUID: WVHQJJ_TVjtAPqZKVZkx35bx7TCdrEtx X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-03-05_08,2024-03-04_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 lowpriorityscore=0 mlxlogscore=248 suspectscore=0 phishscore=0 spamscore=0 malwarescore=0 mlxscore=0 clxscore=1011 bulkscore=0 impostorscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2402120000 definitions=main-2403050087 On Thu, Feb 22, 2024 at 03:16:24PM -0800, Elliot Berman wrote: > Gunyah is an open-source Type-1 hypervisor developed by Qualcomm. It > does not depend on any lower-privileged OS/kernel code for its core > functionality. This increases its security and can support a smaller > trusted computing based when compared to Type-2 hypervisors. %s/based/base > > Add documentation describing the Gunyah hypervisor and the main > components of the Gunyah hypervisor which are of interest to Linux > virtualization development. > > Signed-off-by: Elliot Berman > +- Virtual platform: > + > + Architectural devices such as interrupt controllers and CPU timers are > + directly provided by the hypervisor as well as core virtual platform devices > + and system APIs such as ARM PSCI. > + > +- Device Virtualization: > + > + Para-virtualization of devices is supported using inter-VM communication and > + virtio transport support. Select stage 2 faults by virtual machines that use %s/Select/Selected > + proxy-scheduled vCPUs can be handled directly by Linux to provide Type-2 > + hypervisor style on-demand paging and/or device emulation. > + The doc patch looks good to me. Thanks, Pavan