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[180.214.232.23]) by smtp.gmail.com with ESMTPSA id s3-20020a170902ea0300b0016bf803341asm267477plg.146.2022.08.04.01.27.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 04 Aug 2022 01:27:01 -0700 (PDT) Received: by debian.me (Postfix, from userid 1000) id 2A4CB103A42; Thu, 4 Aug 2022 15:26:57 +0700 (WIB) Date: Thu, 4 Aug 2022 15:26:56 +0700 From: Bagas Sanjaya To: Elliot Berman Cc: Bjorn Andersson , Murali Nalajala , Trilok Soni , Srivatsa Vaddagiri , Carl van Schaik , Andy Gross , linux-arm-kernel@lists.infradead.org, Lorenzo Pieralisi , Sudeep Holla , Marc Zyngier , Rob Herring , Krzysztof Kozlowski , Jonathan Corbet , Will Deacon , Catalin Marinas , devicetree@vger.kernel.org, linux-doc@vger.kernel.org, linux-arm-msm@vger.kernel.org Subject: Re: [PATCH v2 00/11] Drivers for gunyah hypervisor Message-ID: References: <20220801211240.597859-1-quic_eberman@quicinc.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20220801211240.597859-1-quic_eberman@quicinc.com> Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org On Mon, Aug 01, 2022 at 02:12:29PM -0700, 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. > > The diagram below shows the architecture. > > :: > > Primary VM Secondary VMs > +-----+ +-----+ | +-----+ +-----+ +-----+ > | | | | | | | | | | | > EL0 | APP | | APP | | | APP | | APP | | APP | > | | | | | | | | | | | > +-----+ +-----+ | +-----+ +-----+ +-----+ > ---------------------|------------------------- > +--------------+ | +----------------------+ > | | | | | > EL1 | Linux Kernel | | |Linux kernel/Other OS | ... > | | | | | > +--------------+ | +----------------------+ > --------hvc/smc------|------hvc/smc------------ > +----------------------------------------+ > | | > EL2 | Gunyah Hypervisor | > | | > +----------------------------------------+ > > Gunyah provides these following features. > > - Threads and Scheduling: The scheduler schedules virtual CPUs (VCPUs) on > physical CPUs and enables time-sharing of the CPUs. > - Memory Management: Gunyah tracks memory ownership and use of all memory > under its control. Memory partitioning between VMs is a fundamental > security feature. > - Interrupt Virtualization: All interrupts are handled in the hypervisor > and routed to the assigned VM. > - Inter-VM Communication: There are several different mechanisms provided > for communicating between VMs. > - Device Virtualization: Para-virtualization of devices is supported using > inter-VM communication. Low level system features and devices such as > interrupt controllers are supported with emulation where required. > Hi, I can't apply this series on top of mainline or linux-next. On what tree (and what commit) this series is based on? I'd like to do htmldocs test. Thanks. -- An old man doll... just what I always wanted! - Clara