AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity

docs: powerpc: Add missing documentation reference

Browse Source 
The documentation pages for 'elfnote' and 'ultravisor'
are not included in the powerpc documentation index, this
generates Sphinx warnings:

WARNING: document isn't included in any toctree

Additionally, when one includes these missing doc pages,
more Sphinx warnings appear. Unused footnote references,
syntax highlighting and table of content ordering has
been adjusted.

Signed-off-by: Adam Zerella <adam.zerella@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20190915052905.13431-1-adam.zerella@gmail.com
This commit is contained in:
Adam Zerella 2019-09-15 15:29:05 +10:00 committed by Michael Ellerman
parent 855d9140a3
commit ad9b48c522
3 changed files with 21 additions and 23 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
Documentation/powerpc/elfnote.rst
View File

@ -8,8 +8,7 @@ capabilities and information which can be used by a bootloader or userland.
Types and Descriptors
---------------------
The types to be used with the "PowerPC" namesapce are defined in the
include/uapi/asm/elfnote.h
The types to be used with the "PowerPC" namesapce are defined in [#f1]_.
1) PPC_ELFNOTE_CAPABILITIES
@ -18,25 +17,25 @@ bitmap as "descriptor" field. Each bit is described below:
- Ultravisor-capable bit (PowerNV only).
.. code-block:: c
#define PPCCAP_ULTRAVISOR_BIT (1 << 0)
Indicate that the powerpc kernel binary knows how to run in an
ultravisor-enabled system.
Indicate that the powerpc kernel binary knows how to run in an
ultravisor-enabled system.
In an ultravisor-enabled system, some machine resources are now controlled
by the ultravisor. If the kernel is not ultravisor-capable, but it ends up
being run on a machine with ultravisor, the kernel will probably crash
trying to access ultravisor resources. For instance, it may crash in early
boot trying to set the partition table entry 0.
In an ultravisor-enabled system, some machine resources are now controlled
by the ultravisor. If the kernel is not ultravisor-capable, but it ends up
being run on a machine with ultravisor, the kernel will probably crash
trying to access ultravisor resources. For instance, it may crash in early
boot trying to set the partition table entry 0.
In an ultravisor-enabled system, a bootloader could warn the user or prevent
the kernel from being run if the PowerPC ultravisor capability doesn't exist
or the Ultravisor-capable bit is not set.
In an ultravisor-enabled system, a bootloader could warn the user or prevent
the kernel from being run if the PowerPC ultravisor capability doesn't exist
or the Ultravisor-capable bit is not set.
References
----------
arch/powerpc/include/asm/elfnote.h
arch/powerpc/kernel/note.S
.. [#f1] arch/powerpc/include/asm/elfnote.h

2
Documentation/powerpc/index.rst
View File

@ -15,6 +15,7 @@ powerpc
dawr-power9
dscr
eeh-pci-error-recovery
elfnote
firmware-assisted-dump
hvcs
isa-versions
@ -25,6 +26,7 @@ powerpc
qe_firmware
syscall64-abi
transactional_memory
ultravisor
.. only:: subproject and html

13
Documentation/powerpc/ultravisor.rst
View File

@ -1,5 +1,5 @@
.. SPDX-License-Identifier: GPL-2.0
.. _ultravisor:
.. _ultravisor:
============================
Protected Execution Facility
@ -8,9 +8,6 @@ Protected Execution Facility
.. contents::
:depth: 3
.. sectnum::
:depth: 3
Protected Execution Facility
############################
@ -255,10 +252,10 @@ Ultravisor calls API
be made available in the public/OpenPower version of the PAPR
specification.
**Note**
.. note::
If PEF is not enabled, the ultracalls will be redirected to the
Hypervisor which must handle/fail the calls.
If PEF is not enabled, the ultracalls will be redirected to the
Hypervisor which must handle/fail the calls.
Ultracalls used by Hypervisor
=============================
@ -1054,4 +1051,4 @@ Use cases
References
##########
.. [1] `Supporting Protected Computing on IBM Power Architecture <https://developer.ibm.com/articles/l-support-protected-computing/>`_
- `Supporting Protected Computing on IBM Power Architecture <https://developer.ibm.com/articles/l-support-protected-computing/>`_