Mathis Salmen 2a4835b8ed riscv: add icache flush for nommu sigreturn trampoline ...

commit 8d736482749f6d350892ef83a7a11d43cd49981e upstream.

In a NOMMU kernel, sigreturn trampolines are generated on the user
stack by setup_rt_frame. Currently, these trampolines are not instruction
fenced, thus their visibility to ifetch is not guaranteed.

This patch adds a flush_icache_range in setup_rt_frame to fix this
problem.

Signed-off-by: Mathis Salmen <mathis.salmen@matsal.de>
Fixes: 6bd33e1ece ("riscv: add nommu support")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20230406101130.82304-1-mathis.salmen@matsal.de
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2023-04-20 12:10:27 +02:00

..

vdso

riscv: vdso: fix section overlapping under some conditions

2022-12-08 11:23:57 +01:00

.gitignore

.gitignore: add SPDX License Identifier

2020-03-25 11:50:48 +01:00

asm-offsets.c

riscv: Cleanup unnecessary define in asm-offset.c

2020-07-30 11:37:44 -07:00

cacheinfo.c

drivers: base: cacheinfo: Get rid of DEFINE_SMP_CALL_CACHE_FUNCTION()

2021-09-26 14:08:59 +02:00

cpu_ops_sbi.c

RISC-V: Support cpu hotplug

2020-03-31 11:28:30 -07:00

cpu_ops_spinwait.c

RISC-V: Add cpu_ops and modify default booting method

2020-03-31 11:25:56 -07:00

cpu_ops.c

treewide: Convert macro and uses of __section(foo) to __section("foo")

2020-10-25 14:51:49 -07:00

cpu-hotplug.c

RISC-V: Support cpu hotplug

2020-03-31 11:28:30 -07:00

cpu.c

RISC-V: Rename and move plic_find_hart_id() to arch directory

2020-06-09 19:11:20 -07:00

cpufeature.c

RISC-V: Add bitmap reprensenting ISA features common across CPUs

2020-05-04 14:08:59 -07:00

efi-header.S

RISC-V: Add PE/COFF header for EFI stub

2020-10-02 14:31:16 -07:00

efi.c

riscv: read-only pages should not be writable

2022-06-14 18:32:36 +02:00

entry.S

riscv: fix oops caused by irqsoff latency tracer

2022-03-02 11:42:56 +01:00

fpu.S

riscv: abstract out CSR names for supervisor vs machine mode

2019-11-05 09:20:42 -08:00

ftrace.c

RISC-V: Don't check text_mutex during stop_machine

2023-03-17 08:45:13 +01:00

head.h

RISC-V: Move DT mapping outof fixmap

2020-10-02 14:30:57 -07:00

head.S

riscv: Initialize thread pointer before calling C functions

2022-06-09 10:20:47 +02:00

image-vars.h

RISC-V: Add PE/COFF header for EFI stub

2020-10-02 14:31:16 -07:00

irq.c

RISC-V: Remove do_IRQ() function

2020-06-09 19:11:24 -07:00

jump_label.c

riscv: Add jump-label implementation

2020-07-30 11:37:43 -07:00

kgdb.c

riscv: Fix "no previous prototype" compile warning in kgdb.c file

2020-07-09 20:09:30 -07:00

Makefile

riscv: fix oops caused by irqsoff latency tracer

2022-03-02 11:42:56 +01:00

mcount-dyn.S

riscv/ftrace: Add DYNAMIC_FTRACE_WITH_REGS support

2018-04-02 19:59:13 -07:00

mcount.S

riscv: Workaround mcount name prior to clang-13

2021-05-22 11:40:53 +02:00

module-sections.c

riscv: add missing header file includes

2019-10-28 00:46:01 -07:00

module.c

riscv: Fix auipc+jalr relocation range checks

2022-03-16 14:16:01 +01:00

patch.c

RISC-V: Don't check text_mutex during stop_machine

2023-03-17 08:45:13 +01:00

perf_callchain.c

uaccess: fix type mismatch warnings from access_ok()

2022-04-08 14:40:35 +02:00

perf_event.c

riscv: perf_event: Make some funciton static

2020-05-11 13:48:19 -07:00

perf_regs.c

perf/arch: Remove perf_sample_data::regs_user_copy

2020-11-09 18:12:34 +01:00

process.c

arch: setup PF_IO_WORKER threads like PF_KTHREAD

2023-01-04 11:39:22 +01:00

ptrace.c

riscv: Ensure the value of FP registers in the core dump file is up to date

2021-09-03 10:09:22 +02:00

reset.c

riscv: set default pm_power_off to NULL

2022-08-21 15:15:21 +02:00

riscv_ksyms.c

riscv: Add KASAN support

2020-01-22 13:09:58 -08:00

sbi.c

RISC-V: Add mechanism to provide custom IPI operations

2020-08-20 10:55:40 -07:00

setup.c

riscv: fix reserved memory setup

2022-11-16 09:57:14 +01:00

signal.c

riscv: add icache flush for nommu sigreturn trampoline

2023-04-20 12:10:27 +02:00

smp.c

RISC-V: Fix error code returned by riscv_hartid_to_cpuid()

2021-05-19 10:13:06 +02:00

smpboot.c

riscv: topology: fix default topology reporting

2022-10-30 09:41:19 +01:00

soc.c

mm: introduce include/linux/pgtable.h

2020-06-09 09:39:13 -07:00

stacktrace.c

riscv: Use READ_ONCE_NOCHECK in imprecise unwinding stack mode

2023-03-17 08:45:12 +01:00

sys_riscv.c

riscv: Allow PROT_WRITE-only mmap()

2022-10-26 13:25:10 +02:00

syscall_table.c

riscv: add missing header file includes

2019-10-28 00:46:01 -07:00

time.c

RISC-V: time: initialize hrtimer based broadcast clock event device

2023-03-11 16:39:27 +01:00

trace_irq.c

riscv: fix oops caused by irqsoff latency tracer

2022-03-02 11:42:56 +01:00

trace_irq.h

riscv: fix oops caused by irqsoff latency tracer

2022-03-02 11:42:56 +01:00

traps_misaligned.c

riscv: Unaligned load/store handling for M_MODE

2020-04-03 10:45:33 -07:00

traps.c

riscv: Avoid enabling interrupts in die()

2023-03-17 08:45:08 +01:00

vdso.c

riscv/vdso: make arch_setup_additional_pages wait for mmap_sem for write killable

2021-10-13 10:04:29 +02:00

vmlinux.lds.S

Merge tag 'riscv-for-linus-5.10-mw0' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

2020-10-19 18:18:30 -07:00