diff options
| author | Mike Rapoport (IBM) <rppt@kernel.org> | 2024-05-05 19:06:21 +0300 |
|---|---|---|
| committer | Luis Chamberlain <mcgrof@kernel.org> | 2024-05-14 00:31:43 -0700 |
| commit | 4d7b321a9ce0782a953874ec69acc2b12b9cb2cd (patch) | |
| tree | e8abfa527afe7d24a55eb9d6c3bee1d4e46fd511 /arch/riscv/kernel/module.c | |
| parent | 223b5e57d0d50b0c07b933350dbcde92018d3080 (diff) | |
riscv: extend execmem_params for generated code allocations
The memory allocations for kprobes and BPF on RISC-V are not placed in
the modules area and these custom allocations are implemented with
overrides of alloc_insn_page() and bpf_jit_alloc_exec().
Define MODULES_VADDR and MODULES_END as VMALLOC_START and VMALLOC_END for
32 bit and slightly reorder execmem_params initialization to support both
32 and 64 bit variants, define EXECMEM_KPROBES and EXECMEM_BPF ranges in
riscv::execmem_params and drop overrides of alloc_insn_page() and
bpf_jit_alloc_exec().
Signed-off-by: Mike Rapoport (IBM) <rppt@kernel.org>
Reviewed-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
Diffstat (limited to 'arch/riscv/kernel/module.c')
| -rw-r--r-- | arch/riscv/kernel/module.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/arch/riscv/kernel/module.c b/arch/riscv/kernel/module.c index 182904127ba0..0e6415f00fca 100644 --- a/arch/riscv/kernel/module.c +++ b/arch/riscv/kernel/module.c @@ -906,7 +906,7 @@ int apply_relocate_add(Elf_Shdr *sechdrs, const char *strtab, return 0; } -#if defined(CONFIG_MMU) && defined(CONFIG_64BIT) +#ifdef CONFIG_MMU static struct execmem_info execmem_info __ro_after_init; struct execmem_info __init *execmem_arch_setup(void) @@ -919,6 +919,18 @@ struct execmem_info __init *execmem_arch_setup(void) .pgprot = PAGE_KERNEL, .alignment = 1, }, + [EXECMEM_KPROBES] = { + .start = VMALLOC_START, + .end = VMALLOC_END, + .pgprot = PAGE_KERNEL_READ_EXEC, + .alignment = 1, + }, + [EXECMEM_BPF] = { + .start = BPF_JIT_REGION_START, + .end = BPF_JIT_REGION_END, + .pgprot = PAGE_KERNEL, + .alignment = PAGE_SIZE, + }, }, }; |