[GIT PULL] Please pull powerpc/linux.git powerpc-5.2-5 tag

[Michael Ellerman]

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Hi Linus,

Please pull some more powerpc fixes for 5.2.

This is a frustratingly large batch at rc5. Some of these were sent earlier but
were missed by me due to being distracted by other things, and some took a while
to track down due to needing manual bisection on old hardware. But still we
clearly need to improve our testing of KVM, and of 32-bit, so that we catch
these earlier.

cheers


The following changes since commit c21f5a9ed85ca3e914ca11f421677ae9ae0d04b0:

  powerpc/32s: fix booting with CONFIG_PPC_EARLY_DEBUG_BOOTX (2019-06-07 19:00:14 +1000)

are available in the git repository at:

  https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git tags/powerpc-5.2-5

for you to fetch changes up to 50087112592016a3fc10b394a55f1f1a1bde6908:

  KVM: PPC: Book3S HV: Invalidate ERAT when flushing guest TLB entries (2019-06-20 22:11:25 +1000)

- ------------------------------------------------------------------
powerpc fixes for 5.2 #5

Seven fixes, all for bugs introduced this cycle.

The commit to add KASAN support broke booting on 32-bit SMP machines, due to a
refactoring that moved some setup out of the secondary CPU path.

A fix for another 32-bit SMP bug introduced by the fast syscall entry
implementation for 32-bit BOOKE. And a build fix for the same commit.

Our change to allow the DAWR to be force enabled on Power9 introduced a bug in
KVM, where we clobber r3 leading to a host crash.

The same commit also exposed a previously unreachable bug in the nested KVM
handling of DAWR, which could lead to an oops in a nested host.

One of the DMA reworks broke the b43legacy WiFi driver on some people's
powermacs, fix it by enabling a 30-bit ZONE_DMA on 32-bit.

A fix for TLB flushing in KVM introduced a new bug, as it neglected to also
flush the ERAT, this could lead to memory corruption in the guest.

Thanks to:
  Aaro Koskinen, Christoph Hellwig, Christophe Leroy, Larry Finger, Michael
  Neuling, Suraj Jitindar Singh.

- ------------------------------------------------------------------
Christoph Hellwig (1):
      powerpc: enable a 30-bit ZONE_DMA for 32-bit pmac

Christophe Leroy (3):
      powerpc/32s: fix initial setup of segment registers on secondary CPU
      powerpc/booke: fix fast syscall entry on SMP
      powerpc/32: fix build failure on book3e with KVM

Michael Neuling (1):
      KVM: PPC: Book3S HV: Fix r3 corruption in h_set_dabr()

Suraj Jitindar Singh (2):
      KVM: PPC: Book3S HV: Only write DAWR[X] when handling h_set_dawr in real mode
      KVM: PPC: Book3S HV: Invalidate ERAT when flushing guest TLB entries


 arch/powerpc/include/asm/page.h         |  7 +++++++
 arch/powerpc/kernel/head_32.S           |  1 +
 arch/powerpc/kernel/head_booke.h        | 10 +++++-----
 arch/powerpc/kernel/head_fsl_booke.S    |  2 +-
 arch/powerpc/kvm/book3s_hv_builtin.c    |  1 +
 arch/powerpc/kvm/book3s_hv_rmhandlers.S | 15 +++++++++++++--
 arch/powerpc/mm/mem.c                   |  3 ++-
 arch/powerpc/platforms/powermac/Kconfig |  1 +
 8 files changed, 31 insertions(+), 9 deletions(-)
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