linux-kernel - [GIT PULL] Please pull powerpc/linux.git powerpc-5.4-4 tag

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Message-ID: <875zk236kj.fsf@mpe.ellerman.id.au>
Date:   Sat, 02 Nov 2019 21:39:56 +1100
From:   Michael Ellerman <mpe@...erman.id.au>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     bauerman@...ux.ibm.com, christophe.leroy@....fr,
        fbarrat@...ux.ibm.com, linux-kernel@...r.kernel.org,
        linuxppc-dev@...ts.ozlabs.org, npiggin@...il.com
Subject: [GIT PULL] Please pull powerpc/linux.git powerpc-5.4-4 tag

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Hi Linus,

Please pull some more powerpc fixes for 5.4:

The following changes since commit 2272905a4580f26630f7d652cc33935b59f96d4c:

  spufs: fix a crash in spufs_create_root() (2019-10-11 16:57:41 +1100)

are available in the git repository at:

  https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git tags/powerpc-5.4-4

for you to fetch changes up to 7d6475051fb3d9339c5c760ed9883bc0a9048b21:

  powerpc/powernv: Fix CPU idle to be called with IRQs disabled (2019-10-29 21:47:01 +1100)

- ------------------------------------------------------------------
powerpc fixes for 5.4 #4

Our recent cleanup of EEH led to an oops on bare metal machines when the cxl
(CAPI) driver creates virtual devices for an attached FPGA accelerator.

The "secure virtual machine" support we added in v5.4 had a bug if the kernel
was relocated (moved during boot), in those cases the signature of the kernel
text wouldn't verify and the Ultravisor would refuse to run the VM.

A recent change to disable interrupts before calling arch_cpu_idle_dead() caused
a WARN_ON() in our bare metal CPU offline code to always trigger.

The KUAP (SMAP) support we added for 32-bit Book3S had a bug if the address
range crossed a segment (256MB) boundary which could lead to spurious faults.

Thanks to:
  Christophe Leroy, Frederic Barrat, Michael Anderson, Nicholas Piggin, Sam
  Bobroff, Thiago Jung Bauermann.

- ------------------------------------------------------------------
Christophe Leroy (1):
      powerpc/32s: fix allow/prevent_user_access() when crossing segment boundaries.

Frederic Barrat (1):
      powerpc/powernv/eeh: Fix oops when probing cxl devices

Nicholas Piggin (1):
      powerpc/powernv: Fix CPU idle to be called with IRQs disabled

Thiago Jung Bauermann (1):
      powerpc/prom_init: Undo relocation before entering secure mode


 arch/powerpc/include/asm/book3s/32/kup.h     |  1 +
 arch/powerpc/include/asm/elf.h               |  3 ++
 arch/powerpc/kernel/prom_init.c              | 13 +++++
 arch/powerpc/kernel/prom_init_check.sh       |  3 +-
 arch/powerpc/platforms/powernv/eeh-powernv.c |  2 +-
 arch/powerpc/platforms/powernv/smp.c         | 53 ++++++++++++++------
 6 files changed, 57 insertions(+), 18 deletions(-)
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