Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
Message-ID: <26c0895b-9d69-d355-5b55-19e6ea69bae3@quicinc.com>
Date:   Tue, 10 Jan 2023 09:54:14 -0800
MIME-Version: 1.0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101
 Thunderbird/102.6.0
From:   Elliot Berman <quic_eberman@quicinc.com>
Subject: Re: [PATCH v8 00/28] Drivers for gunyah hypervisor
To:     Alex Elder <elder@linaro.org>,
        Bjorn Andersson <quic_bjorande@quicinc.com>
CC:     Murali Nalajala <quic_mnalajal@quicinc.com>,
        Trilok Soni <quic_tsoni@quicinc.com>,
        Srivatsa Vaddagiri <quic_svaddagi@quicinc.com>,
        Carl van Schaik <quic_cvanscha@quicinc.com>,
        Prakruthi Deepak Heragu <quic_pheragu@quicinc.com>,
        Arnd Bergmann <arnd@arndb.de>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Rob Herring <robh+dt@kernel.org>,
        "Krzysztof Kozlowski" <krzysztof.kozlowski+dt@linaro.org>,
        Jonathan Corbet <corbet@lwn.net>,
        Bagas Sanjaya <bagasdotme@gmail.com>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will@kernel.org>,
        Jassi Brar <jassisinghbrar@gmail.com>,
        Sudeep Holla <sudeep.holla@arm.com>,
        Mark Rutland <mark.rutland@arm.com>,
        Lorenzo Pieralisi <lpieralisi@kernel.org>,
        "Dmitry Baryshkov" <dmitry.baryshkov@linaro.org>,
        <linux-arm-msm@vger.kernel.org>, <devicetree@vger.kernel.org>,
        <linux-kernel@vger.kernel.org>, <linux-doc@vger.kernel.org>,
        <linux-arm-kernel@lists.infradead.org>,
        <linux-acpi@vger.kernel.org>
References: <20221219225850.2397345-1-quic_eberman@quicinc.com>
 <83b6dbc2-01da-04b6-64ec-9a69fd5c4c89@linaro.org>
Content-Language: en-US
In-Reply-To: <83b6dbc2-01da-04b6-64ec-9a69fd5c4c89@linaro.org>
Content-Type: text/plain; charset="UTF-8"; format=flowed
Content-Transfer-Encoding: 8bit
Precedence: bulk


On 1/9/2023 1:34 PM, Alex Elder wrote:
> On 12/19/22 4:58 PM, Elliot Berman wrote:
>> Gunyah is a Type-1 hypervisor independent of any
>> high-level OS kernel, and runs in a higher CPU privilege level. It does
>> not depend on any lower-privileged OS kernel/code for its core
>> functionality. This increases its security and can support a much smaller
>> trusted computing base than a Type-2 hypervisor.
>>
>> Gunyah is an open source hypervisor. The source repo is available at
>> https://github.com/quic/gunyah-hypervisor.
> 
> Can you provide any history about the hypervisor code itself?
> Was it publicly reviewed?  Has it been reviewed by anyone in
> the Linux kernel community, who might have some useful input
> on it?
> 

This is Gunyah's first interaction with wider public community. Gunyah 
has been deployed in devices for past few generation of Qualcomm 
Technolgoies, Inc. (mobile) chipsets.

Thanks,
Elliot