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Message-ID: <20161213192156.GA12471@e104818-lin.cambridge.arm.com>
Date: Tue, 13 Dec 2016 19:21:59 +0000
From: Catalin Marinas <catalin.marinas@....com>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Will Deacon <will.deacon@....com>,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
luto@...nel.org, Marc Zyngier <marc.zyngier@....com>
Subject: [GIT PULL] arm64 updates for 4.10
Hi Linus,
Please pull the arm64 updates for 4.10 below.
The patches touch the generic include/linux/thread_info.h to factor out
struct restart_block into a separate include/linux/restart_block.h file
(needed for arm64 moving thread_info off stack; acked by Andy
Lutomirski).
There is also a small refactoring touching drivers/irqchip/irq-gic-v3.c
and additional watchpoint lengths added to
include/uapi/linux/hw_breakpoint.h.
Thanks.
The following changes since commit bc33b0ca11e3df467777a4fa7639ba488c9d4911:
Linux 4.9-rc4 (2016-11-05 16:23:36 -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 75037120e62b58c536999eb23d70cfcb6d6c0bcc:
arm64: Disable PAN on uaccess_enable() (2016-12-12 17:52:27 +0000)
----------------------------------------------------------------
arm64 updates for 4.10:
- struct thread_info moved off-stack (also touching
include/linux/thread_info.h and include/linux/restart_block.h)
- cpus_have_cap() reworked to avoid __builtin_constant_p() for static
key use (also touching drivers/irqchip/irq-gic-v3.c)
- Uprobes support (currently only for native 64-bit tasks)
- Emulation of kernel Privileged Access Never (PAN) using TTBR0_EL1
switching to a reserved page table
- CPU capacity information passing via DT or sysfs (used by the
scheduler)
- Support for systems without FP/SIMD (IOW, kernel avoids touching these
registers; there is no soft-float ABI, nor kernel emulation for
AArch64 FP/SIMD)
- Handling of hardware watchpoint with unaligned addresses, varied
lengths and offsets from base
- Use of the page table contiguous hint for kernel mappings
- Hugetlb fixes for sizes involving the contiguous hint
- Remove unnecessary I-cache invalidation in flush_cache_range()
- CNTHCTL_EL2 access fix for CPUs with VHE support (ARMv8.1)
- Boot-time checks for writable+executable kernel mappings
- Simplify asm/opcodes.h and avoid including the 32-bit ARM counterpart
and make the arm64 kernel headers self-consistent (Xen headers patch
merged separately)
- Workaround for broken .inst support in certain binutils versions
----------------------------------------------------------------
Ard Biesheuvel (3):
arm64: mm: BUG on unsupported manipulations of live kernel mappings
arm64: mm: replace 'block_mappings_allowed' with 'page_mappings_only'
arm64: mm: set the contiguous bit for kernel mappings where appropriate
Catalin Marinas (12):
arm64: Fix typo in add_default_hugepagesz() for 64K pages
arm64: Update the synchronous external abort fault description
arm64: Factor out PAN enabling/disabling into separate uaccess_* macros
arm64: Factor out TTBR0_EL1 post-update workaround into a specific asm macro
arm64: Introduce uaccess_{disable,enable} functionality based on TTBR0_EL1
arm64: Disable TTBR0_EL1 during normal kernel execution
arm64: Handle faults caused by inadvertent user access with PAN enabled
arm64: xen: Enable user access before a privcmd hvc call
arm64: Enable CONFIG_ARM64_SW_TTBR0_PAN
arm64: Enable HIBERNATION in defconfig
arm64: Remove I-cache invalidation from flush_cache_range()
Merge Will Deacon's for-next/perf branch into for-next/core
Huang Shijie (2):
arm64: hugetlb: remove the wrong pmd check in find_num_contig()
arm64: hugetlb: fix the wrong address for several functions
Jintack (1):
arm64: head.S: Fix CNTHCTL_EL2 access on VHE system
Juri Lelli (3):
Documentation: arm: define DT cpu capacity-dmips-mhz bindings
arm64: parse cpu capacity-dmips-mhz from DT
arm64: add sysfs cpu_capacity attribute
Laura Abbott (4):
arm64: dump: Make ptdump debugfs a separate option
arm64: dump: Make the page table dumping seq_file optional
arm64: dump: Remove max_addr
arm64: dump: Add checking for writable and exectuable pages
Marc Zyngier (5):
arm64: Get rid of asm/opcodes.h
arm64: Remove reference to asm/opcodes.h
arm64: Add detection code for broken .inst support in binutils
arm64: Work around broken .inst when defective gas is detected
arm64: Disable PAN on uaccess_enable()
Mark Rutland (14):
arm64: percpu: kill off final ACCESS_ONCE() uses
thread_info: factor out restart_block
thread_info: include <current.h> for THREAD_INFO_IN_TASK
arm64: thread_info remove stale items
arm64: asm-offsets: remove unused definitions
arm64: factor out current_stack_pointer
arm64: traps: simplify die() and __die()
arm64: unexport walk_stackframe
arm64: prep stack walkers for THREAD_INFO_IN_TASK
arm64: move sp_el0 and tpidr_el1 into cpu_suspend_ctx
arm64: smp: prepare for smp_processor_id() rework
arm64: make cpu number a percpu variable
arm64: assembler: introduce ldr_this_cpu
arm64: split thread_info from task stack
Pavel Labath (1):
arm64: hw_breakpoint: Handle inexact watchpoint addresses
Pratyush Anand (11):
arm64: kprobe: protect/rename few definitions to be reused by uprobe
arm64: kgdb_step_brk_fn: ignore other's exception
arm64: Handle TRAP_TRACE for user mode as well
arm64: Handle TRAP_BRKPT for user mode as well
arm64: introduce mm context flag to keep 32 bit task information
arm64: Add uprobe support
arm64: fix error: conflicting types for 'kprobe_fault_handler'
hw_breakpoint: Allow watchpoint of length 3,5,6 and 7
arm64: Allow hw watchpoint at varied offset from base address
arm64: Allow hw watchpoint of length 3,5,6 and 7
selftests: arm64: add test for unaligned/inexact watchpoint handling
Robin Murphy (3):
arm64/kprobes: Tidy up sign-extension usage
arm64: Remove pointless WARN_ON in DMA teardown
arm64: smp: Prevent raw_smp_processor_id() recursion
Suzuki K Poulose (2):
arm64: Add hypervisor safe helper for checking constant capabilities
arm64: Support systems without FP/ASIMD
.../devicetree/bindings/arm/cpu-capacity.txt | 236 +++++++++++++++++++++
Documentation/devicetree/bindings/arm/cpus.txt | 10 +
arch/arm64/Kconfig | 12 ++
arch/arm64/Kconfig.debug | 35 ++-
arch/arm64/Makefile | 10 +-
arch/arm64/configs/defconfig | 1 +
arch/arm64/include/asm/Kbuild | 1 -
arch/arm64/include/asm/assembler.h | 48 ++++-
arch/arm64/include/asm/cacheflush.h | 7 +-
arch/arm64/include/asm/cpufeature.h | 37 +++-
arch/arm64/include/asm/current.h | 22 ++
arch/arm64/include/asm/debug-monitors.h | 3 +
arch/arm64/include/asm/efi.h | 26 ++-
arch/arm64/include/asm/elf.h | 12 +-
arch/arm64/include/asm/futex.h | 17 +-
arch/arm64/include/asm/hw_breakpoint.h | 6 +-
arch/arm64/include/asm/kernel-pgtable.h | 7 +
arch/arm64/include/asm/mmu.h | 3 +-
arch/arm64/include/asm/mmu_context.h | 53 +++--
arch/arm64/include/asm/neon.h | 3 +-
arch/arm64/include/asm/opcodes.h | 5 -
arch/arm64/include/asm/percpu.h | 18 +-
arch/arm64/include/asm/perf_event.h | 2 +
arch/arm64/include/asm/probes.h | 21 +-
arch/arm64/include/asm/ptdump.h | 22 +-
arch/arm64/include/asm/ptrace.h | 8 +
arch/arm64/include/asm/smp.h | 14 +-
arch/arm64/include/asm/stack_pointer.h | 9 +
arch/arm64/include/asm/suspend.h | 2 +-
arch/arm64/include/asm/sysreg.h | 45 +++-
arch/arm64/include/asm/thread_info.h | 40 +---
arch/arm64/include/asm/uaccess.h | 175 ++++++++++++++-
arch/arm64/include/asm/uprobes.h | 36 ++++
arch/arm64/kernel/armv8_deprecated.c | 16 +-
arch/arm64/kernel/asm-offsets.c | 13 +-
arch/arm64/kernel/cpufeature.c | 18 +-
arch/arm64/kernel/debug-monitors.c | 40 ++--
arch/arm64/kernel/efi.c | 8 +-
arch/arm64/kernel/entry.S | 110 +++++++---
arch/arm64/kernel/fpsimd.c | 14 ++
arch/arm64/kernel/head.S | 30 ++-
arch/arm64/kernel/hw_breakpoint.c | 153 +++++++++----
arch/arm64/kernel/insn.c | 1 -
arch/arm64/kernel/kgdb.c | 3 +
arch/arm64/kernel/probes/Makefile | 2 +
arch/arm64/kernel/probes/decode-insn.c | 33 +--
arch/arm64/kernel/probes/decode-insn.h | 8 +-
arch/arm64/kernel/probes/kprobes.c | 36 ++--
arch/arm64/kernel/probes/simulate-insn.c | 16 +-
arch/arm64/kernel/probes/uprobes.c | 216 +++++++++++++++++++
arch/arm64/kernel/process.c | 38 +++-
arch/arm64/kernel/ptrace.c | 7 +-
arch/arm64/kernel/return_address.c | 1 +
arch/arm64/kernel/setup.c | 9 +
arch/arm64/kernel/signal.c | 3 +
arch/arm64/kernel/sleep.S | 3 -
arch/arm64/kernel/smp.c | 14 +-
arch/arm64/kernel/stacktrace.c | 7 +-
arch/arm64/kernel/suspend.c | 6 -
arch/arm64/kernel/topology.c | 223 ++++++++++++++++++-
arch/arm64/kernel/traps.c | 28 ++-
arch/arm64/kernel/vmlinux.lds.S | 5 +
arch/arm64/kvm/handle_exit.c | 11 +
arch/arm64/kvm/hyp/hyp-entry.S | 9 +-
arch/arm64/kvm/hyp/switch.c | 5 +-
arch/arm64/lib/clear_user.S | 11 +-
arch/arm64/lib/copy_from_user.S | 11 +-
arch/arm64/lib/copy_in_user.S | 11 +-
arch/arm64/lib/copy_to_user.S | 11 +-
arch/arm64/mm/Makefile | 3 +-
arch/arm64/mm/cache.S | 6 +-
arch/arm64/mm/context.c | 7 +-
arch/arm64/mm/dma-mapping.c | 5 -
arch/arm64/mm/dump.c | 106 ++++++---
arch/arm64/mm/fault.c | 22 +-
arch/arm64/mm/flush.c | 9 +-
arch/arm64/mm/hugetlbpage.c | 22 +-
arch/arm64/mm/mmu.c | 137 ++++++++----
arch/arm64/mm/proc.S | 12 +-
arch/arm64/mm/ptdump_debugfs.c | 31 +++
arch/arm64/xen/hypercall.S | 15 ++
drivers/firmware/efi/arm-runtime.c | 4 +-
drivers/irqchip/irq-gic-v3.c | 13 +-
include/linux/restart_block.h | 51 +++++
include/linux/thread_info.h | 45 +---
include/uapi/linux/hw_breakpoint.h | 4 +
tools/include/uapi/linux/hw_breakpoint.h | 4 +
tools/testing/selftests/breakpoints/Makefile | 5 +-
.../selftests/breakpoints/breakpoint_test_arm64.c | 236 +++++++++++++++++++++
89 files changed, 2288 insertions(+), 525 deletions(-)
create mode 100644 Documentation/devicetree/bindings/arm/cpu-capacity.txt
create mode 100644 arch/arm64/include/asm/current.h
delete mode 100644 arch/arm64/include/asm/opcodes.h
create mode 100644 arch/arm64/include/asm/stack_pointer.h
create mode 100644 arch/arm64/include/asm/uprobes.h
create mode 100644 arch/arm64/kernel/probes/uprobes.c
create mode 100644 arch/arm64/mm/ptdump_debugfs.c
create mode 100644 include/linux/restart_block.h
create mode 100644 tools/testing/selftests/breakpoints/breakpoint_test_arm64.c
--
Catalin
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