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[00/13] RTAS maintenance

Message ID 20221118150751.469393-1-nathanl@linux.ibm.com (mailing list archive)
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Series RTAS maintenance | expand

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Nathan Lynch Nov. 18, 2022, 3:07 p.m. UTC 
A collection of loosely-related RTAS code changes, most notably:

* Fixing misuses of rtas_token() for non-function properties.
* The stronger validation for sys_rtas() offered by the
  PPC_RTAS_FILTER config option is always enabled.
* Improved function token lookups, including efficient "reverse"
  token-to-name mappings.
* Static tracepoints for RTAS entry and exit.

Nathan Lynch (13):
  powerpc/rtas: document rtas_call()
  powerpc/rtasd: use correct OF API for event scan rate
  powerpc/rtas: avoid device tree lookups in rtas_os_term()
  powerpc/rtas: avoid scheduling in rtas_os_term()
  powerpc/pseries/eeh: use correct API for error log size
  powerpc/rtas: clean up rtas_error_log_max initialization
  powerpc/rtas: clean up includes
  powerpc/rtas: define pr_fmt and convert printk call sites
  powerpc/rtas: mandate RTAS syscall filtering
  powerpc/rtas: improve function information lookups
  powerpc/rtas: strengthen do_enter_rtas() type safety, drop inline
  powerpc/tracing: tracepoints for RTAS entry and exit
  powerpc/rtas: place tracepoints in do_enter_rtas()

 arch/powerpc/Kconfig                         |  13 -
 arch/powerpc/include/asm/rtas.h              | 102 +-
 arch/powerpc/include/asm/trace.h             | 116 +++
 arch/powerpc/kernel/rtas.c                   | 961 +++++++++++++++----
 arch/powerpc/kernel/rtasd.c                  |   7 +-
 arch/powerpc/platforms/pseries/eeh_pseries.c |   2 +-
 6 files changed, 986 insertions(+), 215 deletions(-)

Comments

Michael Ellerman Dec. 8, 2022, 12:40 p.m. UTC | #1 
On Fri, 18 Nov 2022 09:07:38 -0600, Nathan Lynch wrote:
> A collection of loosely-related RTAS code changes, most notably:
> 
> * Fixing misuses of rtas_token() for non-function properties.
> * The stronger validation for sys_rtas() offered by the
>   PPC_RTAS_FILTER config option is always enabled.
> * Improved function token lookups, including efficient "reverse"
>   token-to-name mappings.
> * Static tracepoints for RTAS entry and exit.
> 
> [...]

Patches 1-9 applied to powerpc/next.

[01/13] powerpc/rtas: document rtas_call()
        https://git.kernel.org/powerpc/c/336e2554ec99eb97616004c791ee89abe96bdab2
[02/13] powerpc/rtasd: use correct OF API for event scan rate
        https://git.kernel.org/powerpc/c/b10af504a2015d12c566b6b0a4c7e3b602949eeb
[03/13] powerpc/rtas: avoid device tree lookups in rtas_os_term()
        https://git.kernel.org/powerpc/c/ed2213bfb192ab51f09f12e9b49b5d482c6493f3
[04/13] powerpc/rtas: avoid scheduling in rtas_os_term()
        https://git.kernel.org/powerpc/c/6c606e57eecc37d6b36d732b1ff7e55b7dc32dd4
[05/13] powerpc/pseries/eeh: use correct API for error log size
        https://git.kernel.org/powerpc/c/9aafbfa5f57a4b75bafd3bed0191e8429c5fa618
[06/13] powerpc/rtas: clean up rtas_error_log_max initialization
        https://git.kernel.org/powerpc/c/c67a0e411d0ffe0648fe84e25e9f899ce770feb3
[07/13] powerpc/rtas: clean up includes
        https://git.kernel.org/powerpc/c/9581f8a00777a073fdd8146659a51ca007cae8d6
[08/13] powerpc/rtas: define pr_fmt and convert printk call sites
        https://git.kernel.org/powerpc/c/f975b6559bac510f1b1b39637997bb240f0a9969
[09/13] powerpc/rtas: mandate RTAS syscall filtering
        https://git.kernel.org/powerpc/c/98c738c8cee6e5a58d4060862e2f8cf3cdc8a328

cheers