OpenCloudOS-Kernel/arch/riscv
Guo Ren d0db02c628
riscv: entry: Add noinstr to prevent instrumentation inserted
Without noinstr the compiler is free to insert instrumentation (think
all the k*SAN, KCov, GCov, ftrace etc..) which can call code we're not
yet ready to run this early in the entry path, for instance it could
rely on RCU which isn't on yet, or expect lockdep state. (by peterz)

Link: https://lore.kernel.org/linux-riscv/YxcQ6NoPf3AH0EXe@hirez.programming.kicks-ass.net/
Reviewed-by: Björn Töpel <bjorn@rivosinc.com>
Suggested-by: Peter Zijlstra <peterz@infradead.org>
Tested-by: Jisheng Zhang <jszhang@kernel.org>
Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
Signed-off-by: Guo Ren <guoren@kernel.org>
Link: https://lore.kernel.org/r/20230222033021.983168-4-guoren@kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2023-03-23 08:46:59 -07:00
..
boot SoC: DT changes for 6.3 2023-02-20 15:49:56 -08:00
configs riscv: defconfig: Enable the Allwinner D1 platform and drivers 2023-01-27 23:10:08 +01:00
errata RISC-V: take text_mutex during alternative patching 2023-02-21 17:21:33 -08:00
include RISC-V Patches for the 6.3 Merge Window, Part 2 2023-03-03 09:32:51 -08:00
kernel riscv: entry: Add noinstr to prevent instrumentation inserted 2023-03-23 08:46:59 -07:00
kvm ARM: 2023-02-25 11:30:21 -08:00
lib riscv, lib: Fix Zbb strncmp 2023-02-28 18:42:38 -08:00
mm VM_FAULT_RETRY fixes 2023-03-05 11:07:58 -08:00
net riscv, bpf: Add bpf trampoline support for RV64 2023-02-17 21:45:30 +01:00
purgatory RISC-V: add infrastructure to allow different str* implementations 2023-01-31 11:43:23 -08:00
Kbuild riscv: move errata/ and kvm/ builds to arch/riscv/Kbuild 2022-06-01 22:26:32 -07:00
Kconfig RISC-V Patches for the 6.3 Merge Window, Part 1 2023-02-25 11:14:08 -08:00
Kconfig.debug RISC-V: Remove EARLY_PRINTK support 2018-12-17 10:23:46 -08:00
Kconfig.erratas drivers/perf: riscv_pmu_sbi: add support for PMU variant on T-Head C9xx cores 2022-10-27 14:35:20 -07:00
Kconfig.socs RISC-V Patches for the 6.3 Merge Window, Part 1 2023-02-25 11:14:08 -08:00
Makefile RISC-V Patches for the 6.3 Merge Window, Part 1 2023-02-25 11:14:08 -08:00