Opcodes instead of mnemonics for VMX instructions

[Okash Khawaja <okash.khawaja@xxxxxxxxx>]

Hi,

For VMX instructions, we use opcodes instead of mnemonics, such as

#define ASM_VMX_VMPTRLD_RAX       ".byte 0x0f, 0xc7, 0x30" (from
arch/x86/include/asm/vmx.h)

for "vmptrld (%%rax)".

Is it because when this was written, the compiler couldn't recognise
the VMX mnemonics? Or are there other reasons?

Thanks,
Okash