Unverified Commit 97b7ac69 authored by Guo Ren's avatar Guo Ren Committed by Palmer Dabbelt
Browse files

riscv: mm: Fixup compat arch_get_mmap_end 



When the task is in COMPAT mode, the arch_get_mmap_end should be 2GB,
not TASK_SIZE_64. The TASK_SIZE has contained is_compat_mode()
detection, so change the definition of STACK_TOP_MAX to TASK_SIZE
directly.

Cc: stable@vger.kernel.org
Fixes: add2cc6b ("RISC-V: mm: Restrict address space for sv39,sv48,sv57")
Signed-off-by: default avatarGuo Ren <guoren@linux.alibaba.com>
Signed-off-by: default avatarGuo Ren <guoren@kernel.org>
Reviewed-by: default avatarLeonardo Bras <leobras@redhat.com>
Reviewed-by: default avatarCharlie Jenkins <charlie@rivosinc.com>
Link: https://lore.kernel.org/r/20231222115703.2404036-3-guoren@kernel.org


Signed-off-by: default avatarPalmer Dabbelt <palmer@rivosinc.com>
parent 5f449e24

arch/riscv/include/asm/processor.h

+1 −1
Original line number Diff line number Diff line
@@ -16,7 +16,7 @@ 


#ifdef CONFIG_64BIT

#define DEFAULT_MAP_WINDOW	(UL(1) << (MMAP_VA_BITS - 1))

#define STACK_TOP_MAX		TASK_SIZE_64

#define STACK_TOP_MAX		TASK_SIZE



#define arch_get_mmap_end(addr, len, flags)			\

({								\