linux-kernel - Re: [PATCH v17 01/35] docs: gunyah: Introduce Gunyah Hypervisor

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Message-ID: <6f98238d-25d9-4120-810a-4b8b19c1ef5d@quicinc.com>
Date: Tue, 5 Mar 2024 16:23:12 +0530
From: Pavan Kondeti <quic_pkondeti@...cinc.com>
To: Elliot Berman <quic_eberman@...cinc.com>
CC: Alex Elder <elder@...aro.org>,
        Srinivas Kandagatla
	<srinivas.kandagatla@...aro.org>,
        Murali Nalajal <quic_mnalajal@...cinc.com>,
        Trilok Soni <quic_tsoni@...cinc.com>,
        Srivatsa Vaddagiri
	<quic_svaddagi@...cinc.com>,
        Carl van Schaik <quic_cvanscha@...cinc.com>,
        Philip Derrin <quic_pderrin@...cinc.com>,
        Prakruthi Deepak Heragu
	<quic_pheragu@...cinc.com>,
        Jonathan Corbet <corbet@....net>, Rob Herring
	<robh+dt@...nel.org>,
        Krzysztof Kozlowski
	<krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Bjorn Andersson
	<andersson@...nel.org>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        "Fuad
 Tabba" <tabba@...gle.com>,
        Sean Christopherson <seanjc@...gle.com>,
        "Andrew
 Morton" <akpm@...ux-foundation.org>,
        <linux-arm-msm@...r.kernel.org>, <linux-doc@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>, <linux-mm@...ck.org>
Subject: Re: [PATCH v17 01/35] docs: gunyah: Introduce Gunyah Hypervisor

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 <quic_eberman@...cinc.com>
> +- 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