1 ==========================
2 ELF Note PowerPC Namespace
3 ==========================
4
5 The PowerPC namespace in an ELF Note of the ke
6 capabilities and information which can be used
7
8 Types and Descriptors
9 ---------------------
10
11 The types to be used with the "PowerPC" namesp
12
13 1) PPC_ELFNOTE_CAPABILITIES
14
15 Define the capabilities supported/required by
16 bitmap as "descriptor" field. Each bit is desc
17
18 - Ultravisor-capable bit (PowerNV only).
19
20 .. code-block:: c
21
22 #define PPCCAP_ULTRAVISOR_BIT (1 << 0)
23
24 Indicate that the powerpc kernel binary knows
25 ultravisor-enabled system.
26
27 In an ultravisor-enabled system, some machine
28 by the ultravisor. If the kernel is not ultrav
29 being run on a machine with ultravisor, the ke
30 trying to access ultravisor resources. For ins
31 boot trying to set the partition table entry 0
32
33 In an ultravisor-enabled system, a bootloader
34 the kernel from being run if the PowerPC ultra
35 or the Ultravisor-capable bit is not set.
36
37 References
38 ----------
39
40 .. [#f1] arch/powerpc/include/asm/elfnote.h
41
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