[GIT PULL] arm64: fixes for -rc2

[Will Deacon]

Hi Linus,

Another handful of arm64 fixes here. Most of the complication comes from
improving our kpti code to avoid lengthy pauses (30+ seconds) during boot
when we rewrite the page tables. There are also a couple of IORT fixes
that came in via Lorenzo. Usual summary in the tag.

Please pull,

Thanks,

Will

--->8

The following changes since commit bfeffd155283772bbe78c6a05dec7c0128ee500c:

  Linux 5.0-rc1 (2019-01-06 17:08:20 -0800)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git tags/arm64-fixes

for you to fetch changes up to 279667212ab2a4f36c3b0347657ddcc11f9cfa25:

  arm64: kexec_file: return successfully even if kaslr-seed doesn't exist (2019-01-11 10:10:51 +0000)

----------------------------------------------------------------
arm64 fixes for -rc2

- Don't error in kexec_file_load if kaslr-seed is missing in device-tree

- Fix incorrect argument type passed to iort_match_node_callback()

- Fix IORT build failure when CONFIG_IOMMU_API=n

- Fix kpti performance regression with new rodata default option

- Typo fix

----------------------------------------------------------------
AKASHI Takahiro (1):
      arm64: kexec_file: return successfully even if kaslr-seed doesn't exist

Jean-Philippe Brucker (1):
      ACPI/IORT: Fix rc_dma_get_range()

Qian Cai (1):
      ACPI/IORT: Fix build when CONFIG_IOMMU_API=n

Will Deacon (2):
      arm64: asm-prototypes: Fix fat-fingered typo in comment
      arm64: kpti: Avoid rewriting early page tables when KASLR is enabled

 arch/arm64/include/asm/asm-prototypes.h |  2 +-
 arch/arm64/include/asm/mmu.h            | 41 +++++++++++++++++++++++++++++++++
 arch/arm64/include/asm/pgtable-prot.h   |  4 ++--
 arch/arm64/kernel/cpu_errata.c          |  2 +-
 arch/arm64/kernel/cpufeature.c          |  9 ++++++--
 arch/arm64/kernel/head.S                |  1 +
 arch/arm64/kernel/machine_kexec_file.c  |  4 +++-
 drivers/acpi/arm64/iort.c               |  5 ++--
 8 files changed, 59 insertions(+), 9 deletions(-)