Mark Rutland b90b4a608e arm64: fix KASLR boot-time I-cache maintenance ... Commit f80fb3a3d5 ("arm64: add support for kernel ASLR") missed a DSB necessary to complete I-cache maintenance in the primary boot path, and hence stale instructions may still be present in the I-cache and may be executed until the I-cache maintenance naturally completes. Since commit 8ec4198743 ("arm64: mm: ensure patched kernel text is fetched from PoU"), all CPUs invalidate their I-caches after their MMU is enabled. Prior a CPU's MMU having been enabled, arbitrary lines may have been fetched from the PoC into I-caches. We never patch text expected to be executed with the MMU off. Thus, it is unnecessary to perform broadcast I-cache maintenance in the primary boot path. This patch reduces the scope of the I-cache maintenance to the local CPU, and adds the missing DSB with similar scope, matching prior maintenance in the primary boot path. Signed-off-by: Mark Rutland <mark.rutland@arm.com> Acked-by: Ard Biesehvuel <ard.biesheuvel@linaro.org> Cc: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>		2016-03-21 12:08:50 +00:00
..
vdso	arm64: vdso: Mark vDSO code as read-only	2016-02-16 18:20:23 +00:00
.gitignore	arm64: Build infrastructure	2012-09-17 13:42:21 +01:00
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	Power management and ACPI updates for v4.4-rc1	2015-11-04 18:10:13 -08:00
alternative.c	arm64: mm: fold alternatives into .init	2015-12-10 17:36:08 +00:00
arm64ksyms.c	ARM: 8480/2: arm64: add implementation for arm-smccc	2016-01-04 16:24:45 +00:00
armv8_deprecated.c	arm64: switch to relative exception tables	2016-02-24 14:57:26 +00:00
asm-offsets.c	arm64: Handle early CPU boot failures	2016-02-25 10:32:23 +00:00
cacheinfo.c	arm64: kernel: add support for cpu cache information	2015-01-15 11:55:07 +00:00
cpu_errata.c	arm64: Add workaround for Cavium erratum 27456	2016-02-26 15:14:27 +00:00
cpu_ops.c	arm64: kernel: implement ACPI parking protocol	2016-02-16 15:12:32 +00:00
cpufeature.c	arm64: make mrs_s prefixing implicit in read_cpuid	2016-03-04 14:12:46 +00:00
cpuidle.c	arm64: cpuidle: add __init section marker to arm_cpuidle_init	2015-07-02 17:44:27 +01:00
cpuinfo.c	arm64: make mrs_s prefixing implicit in read_cpuid	2016-03-04 14:12:46 +00:00
debug-monitors.c	arm64: Rename cpuid_feature field extract routines	2016-02-25 10:33:08 +00:00
efi-entry.S	arm64: efi: add missing frame pointer assignment	2016-03-04 18:12:23 +00:00
efi.c	arm64/efi: refactor EFI init and runtime code for reuse by 32-bit ARM	2015-12-09 16:57:23 +00:00
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/kernel: fix incorrect EL0 check in inv_entry macro	2016-03-21 12:05:34 +00:00
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: fix KASLR boot-time I-cache maintenance	2016-03-21 12:08:50 +00:00
hw_breakpoint.c	arm64: Fix missing #include in hw_breakpoint.c	2015-10-12 12:10:53 +01:00
hyp-stub.S	irqchip: gic-v3: Initial support for GICv3	2014-07-08 22:11:47 +00:00
image.h	arm64: avoid R_AARCH64_ABS64 relocations for Image header fields	2016-02-24 14:57:25 +00:00
insn.c	arm64: insn: remove BUG_ON from codegen	2016-01-17 19:15:26 -05:00
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: kaslr: randomize the linear region	2016-02-24 14:57:27 +00:00
kgdb.c	arm64: Fix misspellings in comments.	2016-03-04 18:19:17 +00:00
kuser32.S	arm64: Add __NR_* definitions for compat syscalls	2014-07-10 11:02:40 +01:00
Makefile	arm64: add support for kernel ASLR	2016-02-24 14:57:27 +00:00
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	ARM64: PCI: do not enable resources on PROBE_ONLY systems	2015-07-30 20:17:07 +01:00
perf_callchain.c	arm64: ftrace: fix a stack tracer's output under function graph tracer	2015-12-21 17:26:02 +00:00
perf_event.c	arm64: perf: add support for Cortex-A72	2015-12-22 14:45:35 +00:00
perf_regs.c	perf: Move task_pt_regs sampling into arch code	2015-01-09 11:12:28 +01:00
process.c	arm64: Remove the get_thread_info() function	2016-02-18 17:27:05 +00:00
psci.c	drivers: firmware: psci: move power_state handling to generic code	2015-10-02 14:35:16 +01:00
ptrace.c	arm64: Rework valid_user_regs	2016-03-02 15:49:28 +00:00
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	arm64: add support for kernel ASLR	2016-02-24 14:57:27 +00:00
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: Store struct thread_info in sp_el0	2015-12-08 11:40:48 +00:00
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: kernel: make cpu_ops hooks DT agnostic	2015-05-19 16:09:29 +01:00
smp.c	arm64: Handle early CPU boot failures	2016-02-25 10:32:23 +00:00
stacktrace.c	arm64: ftrace: fix a stack tracer's output under function graph tracer	2015-12-21 17:26:02 +00:00
suspend.c	arm64: unify idmap removal	2016-02-16 15:10:44 +00:00
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: make sys_call_table const	2015-01-27 09:38:08 +00:00
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: traps: address fallout from printk -> pr_* conversion	2015-12-21 17:26:02 +00:00
vdso.c	arm64: VDSO: fix coarse clock monotonicity regression	2015-08-10 15:37:45 +01:00
vmlinux.lds.S	arm64: mm: Mark .rodata as RO	2016-02-26 15:08:04 +00:00