1 * Xen hypervisor device tree bindings
2
3 Xen ARM virtual platforms shall have a top-lev
4 the following properties:
5
6 - compatible:
7 compatible = "xen,xen-<version>", "xen
8 where <version> is the version of the Xen AB
9
10 - reg: specifies the base physical address and
11 where the special resources should be mapped
12 hypercall.
13 Region 0 is reserved for mapping grant table
14 The memory region is large enough to map the
15 or equal to gnttab_max_grant_frames()).
16 Regions 1...N are extended regions (unused a
17 GFNs and grants, they might be absent if the
18
19 - interrupts: the interrupt used by Xen to inj
20 A GIC node is also required.
21
22 To support UEFI on Xen ARM virtual platforms,
23 under /hypervisor with following parameters:
24
25 ______________________________________________
26 Name | Size | Descripti
27 ==============================================
28 xen,uefi-system-table | 64-bit | Guest phy
29 | | Table.
30 ----------------------------------------------
31 xen,uefi-mmap-start | 64-bit | Guest phy
32 | | map.
33 ----------------------------------------------
34 xen,uefi-mmap-size | 32-bit | Size in b
35 | | pointed t
36 ----------------------------------------------
37 xen,uefi-mmap-desc-size | 32-bit | Size in b
38 | | memory ma
39 ----------------------------------------------
40 xen,uefi-mmap-desc-ver | 32-bit | Version o
41 ----------------------------------------------
42
43 Example (assuming #address-cells = <2> and #si
44
45 hypervisor {
46 compatible = "xen,xen-4.3", "xen,xen";
47 reg = <0 0xb0000000 0 0x20000>;
48 interrupts = <1 15 0xf08>;
49 uefi {
50 xen,uefi-system-table = <0xXXX
51 xen,uefi-mmap-start = <0xXXXXX
52 xen,uefi-mmap-size = <0xXXXXXX
53 xen,uefi-mmap-desc-size = <0xX
54 xen,uefi-mmap-desc-ver = <0xXX
55 };
56 };
57
58 The format and meaning of the "xen,uefi-*" par
59 Documentation/arch/arm/uefi.rst, which are pro
60 they differ because they are provided by the X
61 of UEFI runtime services implemented via hyper
62 http://xenbits.xen.org/docs/unstable/hypercall
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.