Re: [PATCH v12 01/28] mm: VM_SHADOW_STACK definition for riscv

Hi Deepak,

On 14/03/2025 22:39, Deepak Gupta wrote:

VM_HIGH_ARCH_5 is used for riscv

Reviewed-by: Zong Li zong.li@sifive.com Signed-off-by: Deepak Gupta debug@rivosinc.com

---

include/linux/mm.h | 7 +++++++ 1 file changed, 7 insertions(+)

diff --git a/include/linux/mm.h b/include/linux/mm.h index 7b1068ddcbb7..1ef231cbc8fe 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -378,6 +378,13 @@ extern unsigned int kobjsize(const void *objp); # define VM_SHADOW_STACK VM_HIGH_ARCH_6 #endif +#if defined(CONFIG_RISCV_USER_CFI) +/*

• • Following x86 and picking up the same bitpos.
• */

+# define VM_SHADOW_STACK VM_HIGH_ARCH_5 +#endif

• #ifndef VM_SHADOW_STACK # define VM_SHADOW_STACK VM_NONE #endif

Reviewed-by: Alexandre Ghiti alexghiti@rivosinc.com

Thanks,

Alex