On Fri, Oct 11, 2024 at 11:38:51AM +0100, Mark Brown wrote:
On Thu, Oct 10, 2024 at 05:32:04PM -0700, Deepak Gupta wrote:
VM_SHADOW_STACK (alias to VM_HIGH_ARCH_5) is used to encode shadow stack
VMA on three architectures (x86 shadow stack, arm GCS and RISC-V shadow
stack). In case architecture doesn't implement shadow stack, it's VM_NONE
Introducing a helper `is_shadow_stack_vma` to determine shadow stack vma
or not.
Signed-off-by: Deepak Gupta <debug@xxxxxxxxxxxx>
---
mm/gup.c | 2 +-
mm/vma.h | 10 +++++++---
2 files changed, 8 insertions(+), 4 deletions(-)
As I noted in reply to the version of this patch in the RISC-V series
there's another test for VM_SHADOW_STACK in mm/mmap.c.
Yeah will make sure to consolidate comments from both patch series in next
version. Thanks.
