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linux/arch/arm64/kernel
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Ard Biesheuvel bc9f3d7788 arm64: kernel: avoid literal load of virtual address with MMU off 
Literal loads of virtual addresses are subject to runtime relocation when
CONFIG_RELOCATABLE=y, and given that the relocation routines run with the
MMU and caches enabled, literal loads of relocated values performed with
the MMU off are not guaranteed to return the latest value unless the
memory covering the literal is cleaned to the PoC explicitly.

So defer the literal load until after the MMU has been enabled, just like
we do for primary_switch() and secondary_switch() in head.S.

Fixes: 1e48ef7fcc37 ("arm64: add support for building vmlinux as a relocatable PIE binary")
Cc: <stable@vger.kernel.org> # 4.6+
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2016-08-17 17:37:37 +01:00
..
probes
arm64: Remove stack duplicating code from jprobes
2016-08-11 17:38:16 +01:00
vdso
arm64: Add support for CLOCK_MONOTONIC_RAW in clock_gettime() vDSO
2016-07-12 16:06:32 +01:00
.gitignore
arm64: Build infrastructure
2012-09-17 13:42:21 +01:00
acpi_numa.c
arm64, ACPI, NUMA: NUMA support based on SRAT and SLIT
2016-05-30 14:27:09 +02:00
acpi_parking_protocol.c
arm64: kernel: acpi: fix ioremap in ACPI parking protocol cpu_postboot
2016-02-26 15:39:52 +00:00
acpi.c
arm64: acpi: add acpi=on cmdline option to prefer ACPI boot over DT
2016-04-26 14:37:41 +01:00
alternative.c
arm64: mm: fold alternatives into .init
2015-12-10 17:36:08 +00:00
arm64ksyms.c
Merge branch 'for-next/kprobes' into for-next/core
2016-07-21 18:20:41 +01:00
armv8_deprecated.c
Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-07-29 13:55:30 -07:00
asm-offsets.c
arm64 updates for 4.8:
2016-07-27 11:16:05 -07:00
cacheinfo.c
arm64: kernel: add support for cpu cache information
2015-01-15 11:55:07 +00:00
cpu_errata.c
arm64 updates for 4.8:
2016-07-27 11:16:05 -07:00
cpu_ops.c
arm64: kernel: implement ACPI parking protocol
2016-02-16 15:12:32 +00:00
cpu-reset.h
arm64: Add back cpu reset routines
2016-06-27 16:31:25 +01:00
cpu-reset.S
arm64: Add back cpu reset routines
2016-06-27 16:31:25 +01:00
cpufeature.c
- ARM: GICv3 ITS emulation and various fixes. Removal of the old
2016-08-02 16:11:27 -04:00
cpuidle.c
arm64: add support for ACPI Low Power Idle(LPI)
2016-07-21 23:29:38 +02:00
cpuinfo.c
arm64: cpuinfo: Expose MIDR_EL1 and REVIDR_EL1 to sysfs
2016-07-12 16:09:37 +01:00
debug-monitors.c
Merge branch 'for-next/kprobes' into for-next/core
2016-07-21 18:20:41 +01:00
efi-entry.S
arm64: move early boot code to the .init segment
2016-04-14 18:11:30 +01:00
efi.c
arm64: efi: avoid block mappings for unaligned UEFI memory regions
2016-07-01 11:56:26 +01:00
entry32.S
arm64: entry32: remove pointless register assignment
2015-07-10 16:47:13 +01:00
entry-fpsimd.S
arm64: fpsimd: fix a typo in fpsimd_save_partial_state ENDPROC
2014-07-31 11:42:42 +01:00
entry-ftrace.S
arm64: ftrace: fix function_graph tracer panic
2015-10-02 11:12:56 +01:00
entry.S
arm64: Handle el1 synchronous instruction aborts cleanly
2016-08-12 17:58:48 +01:00
fpsimd.c
arm64: Fix misspellings in comments.
2016-03-04 18:19:17 +00:00
ftrace.c
arm64: ftrace: modify a stack frame in a safe way
2015-12-21 17:26:01 +00:00
head.S
arm64: relocatable: suppress R_AARCH64_ABS64 relocations in vmlinux
2016-07-29 10:45:01 +01:00
hibernate-asm.S
arm64: kernel: Add support for hibernate/suspend-to-disk
2016-04-28 13:36:22 +01:00
hibernate.c
arm64: hibernate: handle allocation failures
2016-08-12 19:08:33 +01:00
hw_breakpoint.c
arm64: Blacklist non-kprobe-able symbol
2016-07-19 15:03:20 +01:00
hyp-stub.S
arm64: Add back cpu reset routines
2016-06-27 16:31:25 +01:00
image.h
arm64 updates for 4.7:
2016-05-16 17:17:24 -07:00
insn.c
arm64: kprobes instruction simulation support
2016-07-19 15:03:21 +01:00
io.c
arm64: optimize memcpy_{from,to}io() and memset_io()
2014-11-06 17:25:27 +00:00
irq.c
arm64: remove irq_count and do_softirq_own_stack()
2015-12-21 17:26:01 +00:00
jump_label.c
jump_label: Rename JUMP_LABEL_{EN,DIS}ABLE to JUMP_LABEL_{JMP,NOP}
2015-08-03 11:34:12 +02:00
kaslr.c
arm64: relocatable: deal with physically misaligned kernel images
2016-04-26 12:23:28 +01:00
kgdb.c
arm64: Blacklist non-kprobe-able symbol
2016-07-19 15:03:20 +01:00
kuser32.S
arm64: Add __NR_* definitions for compat syscalls
2014-07-10 11:02:40 +01:00
machine_kexec.c
arm64/kexec: Add pr_debug output
2016-06-27 16:31:26 +01:00
Makefile
arm64 updates for 4.8:
2016-07-27 11:16:05 -07:00
module-plts.c
arm64: add support for module PLTs
2016-02-24 14:57:24 +00:00
module.c
arm64: add support for kernel ASLR
2016-02-24 14:57:27 +00:00
module.lds
arm64: add support for module PLTs
2016-02-24 14:57:24 +00:00
paravirt.c
arm64: introduce CONFIG_PARAVIRT, PARAVIRT_TIME_ACCOUNTING and pv_time_ops
2015-12-21 14:40:54 +00:00
pci.c
Merge branch 'pci/resource' into next
2016-08-01 12:23:44 -05:00
perf_callchain.c
perf core: Add a 'nr' field to perf_event_callchain_context
2016-05-16 23:11:51 -03:00
perf_event.c
arm64: perf: don't expose CHAIN event in sysfs
2016-04-25 15:05:24 +01:00
perf_regs.c
perf: Move task_pt_regs sampling into arch code
2015-01-09 11:12:28 +01:00
process.c
exit_thread: remove empty bodies
2016-05-20 17:58:30 -07:00
psci.c
ARM: 8511/1: ARM64: kernel: PSCI: move PSCI idle management code to drivers/firmware
2016-02-11 15:33:38 +00:00
ptrace.c
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
2016-07-29 17:38:46 -07:00
relocate_kernel.S
arm64/kexec: Add core kexec support
2016-06-27 16:31:25 +01:00
return_address.c
arm64: ftrace: fix a stack tracer's output under function graph tracer
2015-12-21 17:26:02 +00:00
setup.c
DeviceTree update for 4.8:
2016-07-30 11:32:01 -07:00
signal32.c
arm64: Fix misspellings in comments.
2016-03-04 18:19:17 +00:00
signal.c
arm64: Rework valid_user_regs
2016-03-02 15:49:28 +00:00
sleep.S
arm64: kernel: avoid literal load of virtual address with MMU off
2016-08-17 17:37:37 +01:00
smccc-call.S
ARM: 8480/2: arm64: add implementation for arm-smccc
2016-01-04 16:24:45 +00:00
smp_spin_table.c
arm64: spin-table: add missing of_node_put()
2016-04-20 10:35:15 +01:00
smp.c
arm64: Support hard limit of cpu count by nr_cpus
2016-08-09 11:00:44 +01:00
stacktrace.c
arm64: make irq_stack_ptr more robust
2016-02-12 15:53:51 +00:00
suspend.c
arm64: Change cpu_resume() to enable mmu early then access sleep_sp by va
2016-04-28 12:05:46 +01:00
sys32.c
arm64: fix implementation of mmap2 compat syscall
2015-03-19 10:43:51 +00:00
sys_compat.c
arm64: compat: align cacheflush syscall with arch/arm
2014-12-01 13:31:12 +00:00
sys.c
arm64: compat: Check for AArch32 state
2016-04-20 12:22:42 +01:00
time.c
arm64: ftrace: fix a stack tracer's output under function graph tracer
2015-12-21 17:26:02 +00:00
topology.c
arm64: kernel: remove non-legit DT warnings when booting using ACPI
2015-07-27 11:08:41 +01:00
trace-events-emulation.h
arm64: Trace emulation of AArch32 legacy instructions
2014-11-20 16:35:02 +00:00
traps.c
arm64: trap userspace "dc cvau" cache operation on errata-affected core
2016-07-01 11:46:00 +01:00
vdso.c
arm64: Add support for CLOCK_MONOTONIC_RAW in clock_gettime() vDSO
2016-07-12 16:06:32 +01:00
vmlinux.lds.S
arm64: relocatable: suppress R_AARCH64_ABS64 relocations in vmlinux
2016-07-29 10:45:01 +01:00