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x86/tdx: Mark message.bytes as nonstring

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In preparation for strtomem*() checking that its destination is a
nonstring, rename and annotate message.bytes accordingly.

Acked-by: Dave Hansen <dave.hansen@linux.intel.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Kees Cook <kees@kernel.org>
This commit is contained in:
Kees Cook 2025-02-05 13:54:26 -08:00
parent ae4c0935f6
commit c0e1d4656e
1 changed files with 2 additions and 2 deletions
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4
arch/x86/coco/tdx/tdx.c
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@ -167,11 +167,11 @@ static void __noreturn tdx_panic(const char *msg)
/* Define register order according to the GHCI */
struct { u64 r14, r15, rbx, rdi, rsi, r8, r9, rdx; };
char str[64];
char bytes[64] __nonstring;
} message;
/* VMM assumes '\0' in byte 65, if the message took all 64 bytes */
strtomem_pad(message.str, msg, '\0');
strtomem_pad(message.bytes, msg, '\0');
args.r8 = message.r8;
args.r9 = message.r9;