x86/fred: No ESPFIX needed when FRED is enabled

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Because FRED always restores the full value of %rsp, ESPFIX is
no longer needed when it's enabled.

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>
Link: https://lore.kernel.org/r/20231205105030.8698-20-xin3.li@intel.com

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H. Peter Anvin (Intel) 2023-12-05 02:50:08 -08:00 • committed by Borislav Petkov (AMD)

parent 09794f6893

commit df8838737b

1 changed files with 8 additions and 0 deletions

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arch/x86/kernel/espfix_64.c

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