Re: [PATCH v10 03/40] mman: Add map_shadow_stack() flags
From: Catalin Marinas <catalin.marinas@arm.com>
Date: 2024-08-15 15:45:59
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On Thu, Aug 01, 2024 at 01:06:30PM +0100, Mark Brown wrote:
In preparation for adding arm64 GCS support make the map_shadow_stack() SHADOW_STACK_SET_TOKEN flag generic and add _SET_MARKER. The existing flag indicats that a token usable for stack switch should be added to
Nit: indicates
quoted hunk ↗ jump to hunk
diff --git a/include/uapi/asm-generic/mman.h b/include/uapi/asm-generic/mman.h index 57e8195d0b53..d6a282687af5 100644 --- a/include/uapi/asm-generic/mman.h +++ b/include/uapi/asm-generic/mman.h@@ -19,4 +19,8 @@ #define MCL_FUTURE 2 /* lock all future mappings */ #define MCL_ONFAULT 4 /* lock all pages that are faulted in */ +#define SHADOW_STACK_SET_TOKEN (1ULL << 0) /* Set up a restore token in the shadow stack */ +#define SHADOW_STACK_SET_MARKER (1ULL << 1) /* Set up a top of stack merker in the shadow stack */
s/merker/marker/ Otherwise: Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>