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x86: Allow to enable PREEMPT_RT.

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It is really time.

x86 has all the required architecture related changes, that have been
identified over time, in order to enable PREEMPT_RT. With the recent
printk changes, the last known road block has been addressed.

Allow to enable PREEMPT_RT on x86.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20240906111841.562402-2-bigeasy@linutronix.de
This commit is contained in:
Sebastian Andrzej Siewior 2024-09-06 12:59:04 +02:00 committed by Thomas Gleixner
parent c903327d32
commit d2d6422f8b
1 changed files with 1 additions and 0 deletions
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arch/x86/Kconfig
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@ -122,6 +122,7 @@ config X86
select ARCH_USES_CFI_TRAPS if X86_64 && CFI_CLANG select ARCH_USES_CFI_TRAPS if X86_64 && CFI_CLANG
select ARCH_SUPPORTS_LTO_CLANG select ARCH_SUPPORTS_LTO_CLANG
select ARCH_SUPPORTS_LTO_CLANG_THIN select ARCH_SUPPORTS_LTO_CLANG_THIN
select ARCH_SUPPORTS_RT
select ARCH_USE_BUILTIN_BSWAP select ARCH_USE_BUILTIN_BSWAP
select ARCH_USE_CMPXCHG_LOCKREF if X86_CMPXCHG64 select ARCH_USE_CMPXCHG_LOCKREF if X86_CMPXCHG64
select ARCH_USE_MEMTEST select ARCH_USE_MEMTEST