| Stefano Stabellini | c43cdfb | 2012-09-18 09:57:47 +0000 | [diff] [blame] | 1 | * Xen hypervisor device tree bindings |
| 2 | |
| 3 | Xen ARM virtual platforms shall have a top-level "hypervisor" node with |
| 4 | the following properties: |
| 5 | |
| 6 | - compatible: |
| 7 | compatible = "xen,xen-<version>", "xen,xen"; |
| 8 | where <version> is the version of the Xen ABI of the platform. |
| 9 | |
| 10 | - reg: specifies the base physical address and size of a region in |
| 11 | memory where the grant table should be mapped to, using an |
| 12 | HYPERVISOR_memory_op hypercall. The memory region is large enough to map |
| 13 | the whole grant table (it is larger or equal to gnttab_max_grant_frames()). |
| 14 | |
| 15 | - interrupts: the interrupt used by Xen to inject event notifications. |
| 16 | A GIC node is also required. |
| 17 | |
| 18 | |
| 19 | Example (assuming #address-cells = <2> and #size-cells = <2>): |
| 20 | |
| 21 | hypervisor { |
| 22 | compatible = "xen,xen-4.3", "xen,xen"; |
| 23 | reg = <0 0xb0000000 0 0x20000>; |
| 24 | interrupts = <1 15 0xf08>; |
| 25 | }; |