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x86/sgx: Use ENCLS mnemonic in <kernel/cpu/sgx/encls.h>

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Current minimum required version of binutils is 2.30, which supports ENCLS
instruction mnemonic.

Replace the byte-wise specification of ENCLS with this proper mnemonic.

No functional change intended.

Signed-off-by: Uros Bizjak <ubizjak@gmail.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Link: https://lore.kernel.org/20250616085716.158942-1-ubizjak@gmail.com
This commit is contained in:
Uros Bizjak 2025-06-16 10:56:30 +02:00 committed by Borislav Petkov (AMD)
parent 045f6a6e4d
commit 13bdfb53aa
1 changed files with 3 additions and 3 deletions
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6
arch/x86/kernel/cpu/sgx/encls.h
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@ -68,7 +68,7 @@ static inline bool encls_failed(int ret)
({ \
int ret; \
asm volatile( \
"1: .byte 0x0f, 0x01, 0xcf;\n\t" \
"1: encls\n" \
"2:\n" \
_ASM_EXTABLE_TYPE(1b, 2b, EX_TYPE_FAULT_SGX) \
: "=a"(ret) \
@ -111,8 +111,8 @@ static inline bool encls_failed(int ret)
({ \
int ret; \
asm volatile( \
"1: .byte 0x0f, 0x01, 0xcf;\n\t" \
" xor %%eax,%%eax;\n" \
"1: encls\n\t" \
"xor %%eax,%%eax\n" \
"2:\n" \
_ASM_EXTABLE_TYPE(1b, 2b, EX_TYPE_FAULT_SGX) \
: "=a"(ret), "=b"(rbx_out) \