diff options
Diffstat (limited to 'Documentation/powerpc')
| -rw-r--r-- | Documentation/powerpc/elfnote.rst | 29 | ||||
| -rw-r--r-- | Documentation/powerpc/index.rst | 2 | ||||
| -rw-r--r-- | Documentation/powerpc/ultravisor.rst | 13 |
3 files changed, 21 insertions, 23 deletions
diff --git a/Documentation/powerpc/elfnote.rst b/Documentation/powerpc/elfnote.rst index 2a5c4beeb809..06602248621c 100644 --- a/Documentation/powerpc/elfnote.rst +++ b/Documentation/powerpc/elfnote.rst @@ -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 diff --git a/Documentation/powerpc/index.rst b/Documentation/powerpc/index.rst index 549b1cdd77ae..db7b6a880f52 100644 --- a/Documentation/powerpc/index.rst +++ b/Documentation/powerpc/index.rst @@ -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 diff --git a/Documentation/powerpc/ultravisor.rst b/Documentation/powerpc/ultravisor.rst index 94a149f34ec3..730854f73830 100644 --- a/Documentation/powerpc/ultravisor.rst +++ b/Documentation/powerpc/ultravisor.rst @@ -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/>`_ |