0001 * Xen hypervisor reserved-memory binding
0002
0003 Expose one or more memory regions as reserved-memory to the guest
0004 virtual machine. Typically, a region is configured at VM creation time
0005 to be a shared memory area across multiple virtual machines for
0006 communication among them.
0007
0008 For each of these pre-shared memory regions, a range is exposed under
0009 the /reserved-memory node as a child node. Each range sub-node is named
0010 xen-shmem@<address> and has the following properties:
0011
0012 - compatible:
0013 compatible = "xen,shared-memory-v1"
0014
0015 - reg:
0016 the base guest physical address and size of the shared memory region
0017
0018 - xen,offset: (borrower VMs only)
0019 64 bit integer offset within the owner virtual machine's shared
0020 memory region used for the mapping in the borrower VM.
0021
0022 - xen,id:
0023 a string that identifies the shared memory region as specified in
0024 the VM config file
