Missing the DT list... On Mon, Dec 3, 2018 at 3:43 PM Stefano Stabellini <sstabell...@kernel.org> wrote: > > From: Stefano Stabellini <stefa...@xilinx.com> > > 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 <stefa...@xilinx.com> > Cc: julien.gr...@arm.com > --- > Changes in v4: > - add offset property > > Changes in v3: > - remove fallback version > > Changes in v2: > - fix Author line > - add versioning > - xen,id instead of id > --- > .../bindings/reserved-memory/xen,shared-memory.txt | 24 > ++++++++++++++++++++++ > 1 file changed, 24 insertions(+) > create mode 100644 > Documentation/devicetree/bindings/reserved-memory/xen,shared-memory.txt > > 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..0a35ffc > --- /dev/null > +++ b/Documentation/devicetree/bindings/reserved-memory/xen,shared-memory.txt > @@ -0,0 +1,24 @@ > +* 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-v1" > + > +- reg: > + the base guest physical address and size of the shared memory region > + > +- offset: (borrower VMs only) > + 64 bit integer offset within the owner virtual machine's shared > + memory region used for the mapping in the borrower VM.
xen,offset. 'offset' is already used in some other bindings to mean register bit offset. > + > +- xen,id: > + a string that identifies the shared memory region as specified in > + the VM config file > -- > 1.9.1 > _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel
