[GIT PULL] arm64 updated for 4.20

From: Catalin Marinas
Date: Fri Oct 19 2018 - 14:00:00 EST

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Hi Linus, Greg,

I'm sending the pull request for 4.20 slightly earlier as I'm on holiday
next week (not in Edinburgh). Apart from some new arm64 features and
clean-ups, this request also contains the core mmu_gather changes for
tracking the levels of the page table being cleared and a minor update
to the generic compat_sys_sigaltstack() introducing COMPAT_SIGMINSKSZ.

Thanks.

The following changes since commit 57361846b52bc686112da6ca5368d11210796804:

Linux 4.19-rc2 (2018-09-02 14:37:30 -0700)

are available in the Git repository at:

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

for you to fetch changes up to 4debef5510071032c6d5dace31ca1cc42a120073:

arm64: KVM: Guests can skip __install_bp_hardening_cb()s HYP work (2018-10-19 15:37:25 +0100)

----------------------------------------------------------------
arm64 updates for 4.20:

- Core mmu_gather changes which allow tracking the levels of page-table
being cleared together with the arm64 low-level flushing routines

- Support for the new ARMv8.5 PSTATE.SSBS bit which can be used to
mitigate Spectre-v4 dynamically without trapping to EL3 firmware

- Introduce COMPAT_SIGMINSTKSZ for use in compat_sys_sigaltstack

- Optimise emulation of MRS instructions to ID_* registers on ARMv8.4

- Support for Common Not Private (CnP) translations allowing threads of
the same CPU to share the TLB entries

- Accelerated crc32 routines

- Move swapper_pg_dir to the rodata section

- Trap WFI instruction executed in user space

- ARM erratum 1188874 workaround (arch_timer)

- Miscellaneous fixes and clean-ups

----------------------------------------------------------------
Andrew Murray (1):
arm64: Remove unused VGA console support

Anshuman Khandual (8):
arm64/cpufeatures: Introduce ESR_ELx_SYS64_ISS_RT()
arm64/cpufeatures: Factorize emulate_mrs()
arm64/cpufeatures: Emulate MRS instructions by parsing ESR_ELx.ISS
arm64/mm: Use ESR_ELx_FSC macro while decoding fault exception
arm64/mm: Reorganize arguments for is_el1_permission_fault()
arm64/mm: Define esr_to_debug_fault_info()
arm64/numa: Report correct memblock range for the dummy node
arm64/numa: Unify common error path in numa_init()

Ard Biesheuvel (4):
lib/crc32: make core crc32() routines weak so they can be overridden
arm64: cpufeature: add feature for CRC32 instructions
arm64/lib: add accelerated crc32 routines
arm64: remove unused asm/compiler.h header file

Arnd Bergmann (1):
arm64: arch_timer: avoid unused function warning

Giacomo Travaglini (1):
arm64: docs: Fix typos in ELF hwcaps

Hari Vyas (1):
arm64: fix for bad_mode() handler to always result in panic

James Morse (6):
arm64: Kconfig: Remove ARCH_HAS_HOLES_MEMORYMODEL
arm64: mm: Use #ifdef for the __PAGETABLE_P?D_FOLDED defines
MAINTAINERS: fix bad sdei paths
Revert "arm64: uaccess: implement unsafe accessors"
arm64: mm: Use __pa_symbol() for set_swapper_pgd()
arm64: KVM: Guests can skip __install_bp_hardening_cb()s HYP work

Julien Thierry (4):
arm64: uaccess: implement unsafe accessors
arm64: daifflags: Use irqflags functions for daifflags
arm64: Use daifflag_restore after bp_hardening
arm64: xen: Use existing helper to check interrupt status

Jun Yao (4):
arm64/mm: Pass ttbr1 as a parameter to __enable_mmu()
arm64/mm: Separate boot-time page tables from swapper_pg_dir
arm64/mm: use fixmap to modify swapper_pg_dir
arm64/mm: move runtime pgds to rodata

Kyrylo Tkachov (1):
arm64: Fix typo in a comment in arch/arm64/mm/kasan_init.c

Marc Zyngier (9):
arm64: Add decoding macros for CP15_32 and CP15_64 traps
arm64: compat: Add separate CP15 trapping hook
arm64: compat: Add condition code checks and IT advance
arm64: compat: Add cp15_32 and cp15_64 handler arrays
arm64: compat: Add CNTVCT trap handler
arm64: compat: Add CNTFRQ trap handler
arm64: arch_timer: Add workaround for ARM erratum 1188873
arm64: Trap WFI executed in userspace
arm64: Add silicon-errata.txt entry for ARM erratum 1188873

Peter Zijlstra (2):
asm-generic/tlb: Track freeing of page-table directories in struct mmu_gather
mm/memory: Move mmu_gather and TLB invalidation code into its own file

Punit Agrawal (1):
Documentation/arm64: HugeTLB page implementation

Rob Herring (1):
perf: Convert to using %pOFn instead of device_node.name

Shaokun Zhang (1):
arm64: mm: Drop the unused cpu parameter

Suzuki K Poulose (4):
arm64: sysreg: Clean up instructions for modifying PSTATE fields
arm64: cpufeature: ctr: Fix cpu capability check for late CPUs
arm64: cpufeature: Fix handling of CTR_EL0.IDC field
arm64: cpufeature: Trap CTR_EL0 access only where it is necessary

Tri Vo (1):
arm64: lse: remove -fcall-used-x0 flag

Vladimir Murzin (2):
arm64: mm: Support Common Not Private translations
arm64: KVM: Enable Common Not Private translations

Will Deacon (26):
asm-generic/tlb: Guard with #ifdef CONFIG_MMU
asm-generic/tlb: Track which levels of the page tables have been cleared
MAINTAINERS: Add entry for MMU GATHER AND TLB INVALIDATION
Merge branch 'tlb/asm-generic' into aarch64/for-next/core
arm64: dump: Use consistent capitalisation for page-table dumps
arm64: tlb: Use last-level invalidation in flush_tlb_kernel_range()
arm64: tlb: Add DSB ISHST prior to TLBI in __flush_tlb_[kernel_]pgtable()
arm64: pgtable: Implement p[mu]d_valid() and check in set_p[mu]d()
arm64: tlb: Justify non-leaf invalidation in flush_tlb_range()
arm64: tlbflush: Allow stride to be specified for __flush_tlb_range()
arm64: tlb: Remove redundant !CONFIG_HAVE_RCU_TABLE_FREE code
arm64: tlb: Adjust stride and type of TLBI according to mmu_gather
arm64: tlb: Avoid synchronous TLBIs when freeing page tables
arm64: tlb: Rewrite stale comment in asm/tlbflush.h
arm64: Fix silly typo in comment
arm64: cpufeature: Detect SSBS and advertise to userspace
arm64: ssbd: Drop #ifdefs for PR_SPEC_STORE_BYPASS
arm64: entry: Allow handling of undefined instructions from EL1
arm64: ssbd: Add support for PSTATE.SSBS rather than trapping to EL3
KVM: arm64: Set SCTLR_EL2.DSSBS if SSBD is forcefully disabled and !vhe
arm64: cpu: Move errata and feature enable callbacks closer to callers
arm64: force_signal_inject: WARN if called from kernel context
arm64: cpu_errata: Remove ARM64_MISMATCHED_CACHE_LINE_SIZE
signal: Introduce COMPAT_SIGMINSTKSZ for use in compat_sys_sigaltstack
arm64: compat: Provide definition for COMPAT_SIGMINSTKSZ
arm64: docs: Document SSBS HWCAP

zhong jiang (1):
arm64/kprobes: remove an extra semicolon in arch_prepare_kprobe

Documentation/arm64/elf_hwcaps.txt | 12 +-
Documentation/arm64/hugetlbpage.txt | 38 +++++
Documentation/arm64/silicon-errata.txt | 1 +
MAINTAINERS | 17 ++-
arch/arm/include/asm/kvm_arm.h | 1 +
arch/arm/include/asm/kvm_mmu.h | 5 +
arch/arm64/Kconfig | 34 ++++-
arch/arm64/include/asm/assembler.h | 7 +-
arch/arm64/include/asm/cache.h | 40 +++++
arch/arm64/include/asm/compat.h | 1 +
arch/arm64/include/asm/compiler.h | 30 ----
arch/arm64/include/asm/cpucaps.h | 7 +-
arch/arm64/include/asm/cpufeature.h | 9 +-
arch/arm64/include/asm/cputype.h | 2 +
arch/arm64/include/asm/daifflags.h | 15 +-
arch/arm64/include/asm/esr.h | 77 ++++++++++
arch/arm64/include/asm/kernel-pgtable.h | 2 +-
arch/arm64/include/asm/kvm_arm.h | 1 +
arch/arm64/include/asm/kvm_emulate.h | 2 +-
arch/arm64/include/asm/kvm_host.h | 11 ++
arch/arm64/include/asm/kvm_mmu.h | 5 +
arch/arm64/include/asm/mmu.h | 3 +
arch/arm64/include/asm/mmu_context.h | 17 ++-
arch/arm64/include/asm/page.h | 2 -
arch/arm64/include/asm/pgtable-hwdef.h | 2 +
arch/arm64/include/asm/pgtable.h | 48 +++++-
arch/arm64/include/asm/processor.h | 11 +-
arch/arm64/include/asm/ptrace.h | 1 +
arch/arm64/include/asm/sysreg.h | 44 ++++--
arch/arm64/include/asm/tlb.h | 34 ++---
arch/arm64/include/asm/tlbflush.h | 112 +++++++++-----
arch/arm64/include/asm/uaccess.h | 1 -
arch/arm64/include/asm/xen/events.h | 2 +-
arch/arm64/include/uapi/asm/hwcap.h | 1 +
arch/arm64/include/uapi/asm/ptrace.h | 1 +
arch/arm64/kernel/cpu_errata.c | 96 +++++++++---
arch/arm64/kernel/cpufeature.c | 195 +++++++++++++++++++++---
arch/arm64/kernel/cpuinfo.c | 11 +-
arch/arm64/kernel/entry.S | 18 ++-
arch/arm64/kernel/head.S | 40 ++---
arch/arm64/kernel/probes/kprobes.c | 2 +-
arch/arm64/kernel/process.c | 4 +
arch/arm64/kernel/psci.c | 1 -
arch/arm64/kernel/setup.c | 4 -
arch/arm64/kernel/sleep.S | 1 +
arch/arm64/kernel/ssbd.c | 24 ++-
arch/arm64/kernel/suspend.c | 4 +
arch/arm64/kernel/traps.c | 211 ++++++++++++++++++++++++--
arch/arm64/kernel/vmlinux.lds.S | 35 +++--
arch/arm64/kvm/hyp-init.S | 3 +
arch/arm64/kvm/hyp/sysreg-sr.c | 11 ++
arch/arm64/lib/Makefile | 4 +-
arch/arm64/lib/crc32.S | 60 ++++++++
arch/arm64/mm/context.c | 11 +-
arch/arm64/mm/dump.c | 6 +-
arch/arm64/mm/fault.c | 38 ++---
arch/arm64/mm/init.c | 2 -
arch/arm64/mm/kasan_init.c | 2 +-
arch/arm64/mm/mmu.c | 46 +++---
arch/arm64/mm/numa.c | 13 +-
arch/arm64/mm/proc.S | 11 +-
drivers/clocksource/arm_arch_timer.c | 15 ++
drivers/perf/arm_pmu_platform.c | 6 +-
include/asm-generic/tlb.h | 86 +++++++++--
include/linux/compat.h | 3 +
kernel/signal.c | 14 +-
lib/crc32.c | 11 +-
mm/Makefile | 6 +-
mm/memory.c | 247 ------------------------------
mm/mmu_gather.c | 261 ++++++++++++++++++++++++++++++++
virt/kvm/arm/arm.c | 4 +-
71 files changed, 1511 insertions(+), 591 deletions(-)
create mode 100644 Documentation/arm64/hugetlbpage.txt
delete mode 100644 arch/arm64/include/asm/compiler.h
create mode 100644 arch/arm64/lib/crc32.S
create mode 100644 mm/mmu_gather.c

--
Catalin

Next message: Nathan Chancellor: "[PATCH] mISDN: Fix type of switch control variable in ctrl_teimanager"
Previous message: Nathan Chancellor: "[PATCH] scsi/ata: Use unsigned int for cmd's type in ioctls in scsi_host_template"
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