From: Rob Herring <robh@kernel.org>
To: Stefano Stabellini <sstabellini@kernel.org>
Cc: mark.rutland@arm.com, devicetree@vger.kernel.org,
julien.grall@arm.com, xen-devel@lists.xen.org
Subject: Re: [PATCH] devicetree, xen: add xen, shared-memory binding
Date: Wed, 17 Oct 2018 10:35:27 -0500 [thread overview]
Message-ID: <20181017153527.GA9130@bogus> (raw)
In-Reply-To: <alpine.DEB.2.10.1810081600350.28877@sstabellini-ThinkPad-X260>
On Mon, Oct 08, 2018 at 04:03:54PM -0700, Stefano Stabellini wrote:
> Introduce a device tree binding for Xen reserved-memory regions. They
> are used to share memory across VMs from the VM config files. (See
> static_shm config option.)
>
> Signed-off-by: Stefano Stabellini <stefanos@xilinx.com>
checkpatch.pl complains that the author and S-o-b don't match.
> Cc: julien.grall@arm.com
>
> diff --git a/Documentation/devicetree/bindings/reserved-memory/xen,shared-memory.txt b/Documentation/devicetree/bindings/reserved-memory/xen,shared-memory.txt
> new file mode 100644
> index 0000000..a927a94
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/reserved-memory/xen,shared-memory.txt
> @@ -0,0 +1,20 @@
> +* Xen hypervisor reserved-memory binding
> +
> +Expose one or more memory regions as reserved-memory to the guest
> +virtual machine. Typically, a region is configured at VM creation time
> +to be a shared memory area across multiple virtual machines for
> +communication among them.
> +
> +For each of these pre-shared memory regions, a range is exposed under
> +the /reserved-memory node as a child node. Each range sub-node is named
> +xen-shmem@<address> and has the following properties:
> +
> +- compatible:
> + compatible = xen,shared-memory"
Any need for versioning?
> +
> +- reg:
> + the base guest physical address and size of the shared memory region
> +
> +- id:
xen,id
> + a string that identifies the shared memory region as specified in
> + the VM config file
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next prev parent reply other threads:[~2018-10-17 15:35 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-08 23:03 [PATCH] devicetree,xen: add xen,shared-memory binding Stefano Stabellini
2018-10-17 15:35 ` Rob Herring [this message]
2018-10-18 21:30 ` [PATCH] devicetree, xen: add xen, shared-memory binding Stefano Stabellini
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