x86/opcode: Add ERET[US] instructions to the x86 opcode map

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ERETU returns from an event handler while making a transition to ring 3,
and ERETS returns from an event handler while staying in ring 0.

Add instruction opcodes used by ERET[US] to the x86 opcode map; opcode
numbers are per FRED spec v5.0.

Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
Signed-off-by: Xin Li <xin3.li@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Tested-by: Shan Kang <shan.kang@intel.com>
Reviewed-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Link: https://lore.kernel.org/r/20231205105030.8698-10-xin3.li@intel.com

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This commit is contained in:

H. Peter Anvin (Intel) 2023-12-05 02:49:58 -08:00 • committed by Borislav Petkov (AMD)

parent 3810da1271

commit 0115f8b1a2

2 changed files with 2 additions and 2 deletions

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arch/x86/lib/x86-opcode-map.txt

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2

tools/arch/x86/lib/x86-opcode-map.txt

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