linux-kernel - [PATCH v2 0/1] powerpc: Enable dynamic preemption

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20250102191856.499424-1-sshegde@linux.ibm.com>
Date: Fri,  3 Jan 2025 00:48:55 +0530
From: Shrikanth Hegde <sshegde@...ux.ibm.com>
To: mpe@...erman.id.au, maddy@...ux.ibm.com, linuxppc-dev@...ts.ozlabs.org
Cc: sshegde@...ux.ibm.com, npiggin@...il.com, christophe.leroy@...roup.eu,
        linux-kernel@...r.kernel.org
Subject: [PATCH v2 0/1] powerpc: Enable dynamic preemption

Now that preempt=lazy patches[1] are in powerpc-next tree, sending out the
patch to support dynamic preemption based on DYNAMIC_KEY. I am not sure
when it was to be sent out exactly. So here it is.

Depends on [1] to be applied first, if not in the tree yet.

Once the arch supports static inline calls, it would be needed to
evaluate to see if that gives better performance. 

v1->v2:
- Instead of copying asm-generic preempt.h content include it in
  arch/asm preempt.h. (Christophe Leroy)
- Merge the patches into one patch (Christophe Leroy)

v1: https://lore.kernel.org/all/20241125042212.1522315-1-sshegde@linux.ibm.com/
[1]: https://lore.kernel.org/all/173572211264.1875638.9927288574435880962.b4-ty@linux.ibm.com/

Shrikanth Hegde (1):
  powerpc: Enable dynamic preemption

 arch/powerpc/Kconfig               |  1 +
 arch/powerpc/include/asm/preempt.h | 11 +++++++++++
 arch/powerpc/kernel/interrupt.c    |  6 +++++-
 arch/powerpc/kernel/traps.c        |  6 +++++-
 arch/powerpc/lib/vmx-helper.c      |  2 +-
 5 files changed, 23 insertions(+), 3 deletions(-)
 create mode 100644 arch/powerpc/include/asm/preempt.h

-- 
2.39.3