* Xen hypervisor reserved-memory binding
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Expose one or more memory regions as reserved-memory to the guest
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virtual machine. Typically, a region is configured at VM creation time
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to be a shared memory area across multiple virtual machines for
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communication among them.
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For each of these pre-shared memory regions, a range is exposed under
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the /reserved-memory node as a child node. Each range sub-node is named
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xen-shmem@<address> and has the following properties:
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- compatible:
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compatible = "xen,shared-memory-v1"
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- reg:
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the base guest physical address and size of the shared memory region
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- xen,offset: (borrower VMs only)
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64 bit integer offset within the owner virtual machine's shared
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memory region used for the mapping in the borrower VM.
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- xen,id:
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a string that identifies the shared memory region as specified in
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the VM config file
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