From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: shuo.a.liu@intel.com
Cc: linux-kernel@vger.kernel.org, x86@kernel.org,
"H . Peter Anvin" <hpa@zytor.com>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
Yu Wang <yu1.wang@intel.com>,
Reinette Chatre <reinette.chatre@intel.com>
Subject: Re: [PATCH v9 00/18] HSM driver for ACRN hypervisor
Date: Tue, 9 Feb 2021 11:00:55 +0100 [thread overview]
Message-ID: <YCJdVy+e5Sy2IcnS@kroah.com> (raw)
In-Reply-To: <20210207031040.49576-1-shuo.a.liu@intel.com>
On Sun, Feb 07, 2021 at 11:10:22AM +0800, shuo.a.liu@intel.com wrote:
> From: Shuo Liu <shuo.a.liu@intel.com>
>
> ACRN is a Type 1 reference hypervisor stack, running directly on the bare-metal
> hardware, and is suitable for a variety of IoT and embedded device solutions.
>
> ACRN implements a hybrid VMM architecture, using a privileged Service VM. The
> Service VM manages the system resources (CPU, memory, etc.) and I/O devices of
> User VMs. Multiple User VMs are supported, with each of them running Linux,
> Android OS or Windows. Both Service VM and User VMs are guest VM.
>
> Below figure shows the architecture.
>
> Service VM User VM
> +----------------------------+ | +------------------+
> | +--------------+ | | | |
> | |ACRN userspace| | | | |
> | +--------------+ | | | |
> |-----------------ioctl------| | | | ...
> |kernel space +----------+ | | | |
> | | HSM | | | | Drivers |
> | +----------+ | | | |
> +--------------------|-------+ | +------------------+
> +---------------------hypercall----------------------------------------+
> | ACRN Hypervisor |
> +----------------------------------------------------------------------+
> | Hardware |
> +----------------------------------------------------------------------+
>
> There is only one Service VM which could run Linux as OS.
>
> In a typical case, the Service VM will be auto started when ACRN Hypervisor is
> booted. Then the ACRN userspace (an application running in Service VM) could be
> used to start/stop User VMs by communicating with ACRN Hypervisor Service
> Module (HSM).
>
> ACRN Hypervisor Service Module (HSM) is a middle layer that allows the ACRN
> userspace and Service VM OS kernel to communicate with ACRN Hypervisor
> and manage different User VMs. This middle layer provides the following
> functionalities,
> - Issues hypercalls to the hypervisor to manage User VMs:
> * VM/vCPU management
> * Memory management
> * Device passthrough
> * Interrupts injection
> - I/O requests handling from User VMs.
> - Exports ioctl through HSM char device.
> - Exports function calls for other kernel modules
>
> ACRN is focused on embedded system. So it doesn't support some features.
> E.g.,
> - ACRN doesn't support VM migration.
> - ACRN doesn't support vCPU migration.
>
> This patch set adds the HSM to the Linux kernel.
> I also added a simple example to launch a small guest (with several instructions
> as payload) on ACRN with demonstration ioctl usage.
>
> The basic ARCN support was merged to upstream already.
> https://lore.kernel.org/lkml/1559108037-18813-3-git-send-email-yakui.zhao@intel.com/
Thanks for sticking with this, now merged to my tree.
thanks,
greg k-h
next prev parent reply other threads:[~2021-02-09 10:10 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-07 3:10 [PATCH v9 00/18] HSM driver for ACRN hypervisor shuo.a.liu
2021-02-07 3:10 ` [PATCH v9 01/18] docs: acrn: Introduce ACRN shuo.a.liu
2021-02-08 19:48 ` Randy Dunlap
2021-02-09 1:24 ` Shuo A Liu
2021-02-07 3:10 ` [PATCH v9 02/18] x86/acrn: Introduce acrn_{setup, remove}_intr_handler() shuo.a.liu
2021-02-07 3:10 ` [PATCH v9 03/18] x86/acrn: Introduce acrn_cpuid_base() and hypervisor feature bits shuo.a.liu
2021-02-07 3:10 ` [PATCH v9 04/18] x86/acrn: Introduce hypercall interfaces shuo.a.liu
2021-02-07 3:10 ` [PATCH v9 05/18] virt: acrn: Introduce ACRN HSM basic driver shuo.a.liu
2021-02-07 3:10 ` [PATCH v9 06/18] virt: acrn: Introduce VM management interfaces shuo.a.liu
2021-02-07 3:10 ` [PATCH v9 07/18] virt: acrn: Introduce an ioctl to set vCPU registers state shuo.a.liu
2021-02-07 3:10 ` [PATCH v9 08/18] virt: acrn: Introduce EPT mapping management shuo.a.liu
2021-02-07 3:10 ` [PATCH v9 09/18] virt: acrn: Introduce I/O request management shuo.a.liu
2021-02-07 3:10 ` [PATCH v9 10/18] virt: acrn: Introduce PCI configuration space PIO accesses combiner shuo.a.liu
2021-02-07 3:10 ` [PATCH v9 11/18] virt: acrn: Introduce interfaces for PCI device passthrough shuo.a.liu
2021-02-07 3:10 ` [PATCH v9 12/18] virt: acrn: Introduce interrupt injection interfaces shuo.a.liu
2021-02-07 3:10 ` [PATCH v9 13/18] virt: acrn: Introduce interfaces to query C-states and P-states allowed by hypervisor shuo.a.liu
2021-02-07 3:10 ` [PATCH v9 14/18] virt: acrn: Introduce I/O ranges operation interfaces shuo.a.liu
2021-02-07 3:10 ` [PATCH v9 15/18] virt: acrn: Introduce ioeventfd shuo.a.liu
2021-02-07 3:10 ` [PATCH v9 16/18] virt: acrn: Introduce irqfd shuo.a.liu
2021-02-07 3:10 ` [PATCH v9 17/18] virt: acrn: Introduce an interface for Service VM to control vCPU shuo.a.liu
2021-03-03 17:37 ` Borislav Petkov
2021-03-04 1:36 ` Shuo A Liu
2021-03-04 10:50 ` Borislav Petkov
2021-02-07 3:10 ` [PATCH v9 18/18] sample/acrn: Introduce a sample of HSM ioctl interface usage shuo.a.liu
2021-02-09 10:00 ` Greg Kroah-Hartman [this message]
2021-02-09 10:18 ` [PATCH v9 00/18] HSM driver for ACRN hypervisor Shuo A Liu
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