From: Jisheng Zhang <jszhang@xxxxxxxxxx>
patch1 is a trivial improvement patch to move some functions to .init
section
Then following patches improve self-protection by:
Marking some variables __ro_after_init
Constifing some variables
Enabling ARCH_HAS_STRICT_MODULE_RWX
Since v1:
- no need to move bpf_jit_alloc_exec() and bpf_jit_free_exec() to core
because RV32 uses the default module_alloc() for jit code which also
meets W^X after patch8
- fix a build error caused by local debug code clean up
Jisheng Zhang (9):
riscv: add __init section marker to some functions
riscv: Mark some global variables __ro_after_init
riscv: Constify sys_call_table
riscv: Constify sbi_ipi_ops
riscv: kprobes: Implement alloc_insn_page()
riscv: bpf: Write protect JIT code
riscv: bpf: Avoid breaking W^X on RV64
riscv: module: Create module allocations without exec permissions
riscv: Set ARCH_HAS_STRICT_MODULE_RWX if MMU
arch/riscv/Kconfig | 1 +
arch/riscv/include/asm/smp.h | 4 ++--
arch/riscv/include/asm/syscall.h | 2 +-
arch/riscv/kernel/module.c | 10 ++++++++--
arch/riscv/kernel/probes/kprobes.c | 8 ++++++++
arch/riscv/kernel/sbi.c | 10 +++++-----
arch/riscv/kernel/smp.c | 6 +++---
arch/riscv/kernel/syscall_table.c | 2 +-
arch/riscv/kernel/time.c | 2 +-
arch/riscv/kernel/traps.c | 2 +-
arch/riscv/kernel/vdso.c | 4 ++--
arch/riscv/mm/init.c | 12 ++++++------
arch/riscv/mm/kasan_init.c | 6 +++---
arch/riscv/mm/ptdump.c | 2 +-
arch/riscv/net/bpf_jit_comp64.c | 2 +-
arch/riscv/net/bpf_jit_core.c | 1 +
16 files changed, 45 insertions(+), 29 deletions(-)
--
2.31.0
