x86/fred: Move FRED RSP initialization into a separate function

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To enable FRED earlier, move the RSP initialization out of
cpu_init_fred_exceptions() into cpu_init_fred_rsps().

This is required as the FRED RSP initialization depends on the availability
of the CPU entry areas which are set up late in trap_init(),

No functional change intended. Marked with Fixes as it's a depedency for
the real fix.

Fixes: 14619d912b ("x86/fred: FRED entry/exit and dispatch code")
Signed-off-by: Xin Li (Intel) <xin@zytor.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20240709154048.3543361-3-xin@zytor.com

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Xin Li (Intel) 2024-07-09 08:40:47 -07:00 • committed by Thomas Gleixner

parent 989b5cfaa7

commit 73270c1f23

3 changed files with 25 additions and 11 deletions

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2

arch/x86/include/asm/fred.h

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6

arch/x86/kernel/cpu/common.c

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28

arch/x86/kernel/fred.c

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