From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: Thomas Gleixner <tglx@linutronix.de>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org,
x86@kernel.org
Cc: "H. Peter Anvin" <hpa@zytor.com>,
Albert Ou <aou@eecs.berkeley.edu>, Borislav Petkov <bp@alien8.de>,
Catalin Marinas <catalin.marinas@arm.com>,
Clark Williams <williams@redhat.com>,
Dave Hansen <dave.hansen@linux.intel.com>,
Ingo Molnar <mingo@redhat.com>,
John Ogness <john.ogness@linutronix.de>,
Palmer Dabbelt <palmer@dabbelt.com>,
Paul Walmsley <paul.walmsley@sifive.com>,
Petr Mladek <pmladek@suse.com>,
Sergey Senozhatsky <senozhatsky@chromium.org>,
Steven Rostedt <rostedt@goodmis.org>,
Will Deacon <will@kernel.org>,
Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Subject: [PATCH 1/3] x86: Allow to enable PREEMPT_RT.
Date: Fri, 6 Sep 2024 12:59:04 +0200 [thread overview]
Message-ID: <20240906111841.562402-2-bigeasy@linutronix.de> (raw)
In-Reply-To: <20240906111841.562402-1-bigeasy@linutronix.de>
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>
---
arch/x86/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 28401c16b0c3f..a8cf61c52b063 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -125,6 +125,7 @@ config X86
select ARCH_USES_CFI_TRAPS if X86_64 && CFI_CLANG
select ARCH_SUPPORTS_LTO_CLANG
select ARCH_SUPPORTS_LTO_CLANG_THIN
+ select ARCH_SUPPORTS_RT
select ARCH_USE_BUILTIN_BSWAP
select ARCH_USE_CMPXCHG_LOCKREF if X86_CMPXCHG64
select ARCH_USE_MEMTEST
--
2.45.2
next prev parent reply other threads:[~2024-09-06 11:18 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-09-06 10:59 [PATCH 0/3] " Sebastian Andrzej Siewior
2024-09-06 10:59 ` Sebastian Andrzej Siewior [this message]
2024-09-09 17:27 ` [tip: sched/rt] x86: " tip-bot2 for Sebastian Andrzej Siewior
2024-09-17 9:15 ` tip-bot2 for Sebastian Andrzej Siewior
2024-09-06 10:59 ` [PATCH 2/3] arm64: " Sebastian Andrzej Siewior
2024-09-06 11:30 ` Will Deacon
2024-09-06 14:13 ` Steven Rostedt
2024-09-09 17:27 ` [tip: sched/rt] " tip-bot2 for Sebastian Andrzej Siewior
2024-09-17 9:15 ` tip-bot2 for Sebastian Andrzej Siewior
2024-09-06 10:59 ` [PATCH 3/3] riscv: " Sebastian Andrzej Siewior
2024-09-06 15:13 ` Nam Cao
2024-09-06 18:48 ` Palmer Dabbelt
2024-09-17 10:44 ` Sebastian Andrzej Siewior
2024-10-09 16:47 ` Palmer Dabbelt
2024-10-09 16:44 ` Palmer Dabbelt
2024-10-09 17:41 ` Nam Cao
2024-10-10 8:54 ` John Ogness
2024-10-10 12:21 ` Sebastian Andrzej Siewior
2024-09-09 17:27 ` [tip: sched/rt] " tip-bot2 for Sebastian Andrzej Siewior
2024-09-17 9:15 ` tip-bot2 for Sebastian Andrzej Siewior
2024-09-10 2:39 ` [PATCH 0/3] " Mingcong Bai
2024-09-12 7:14 ` Sebastian Andrzej Siewior
2024-09-30 5:09 ` Shrikanth Hegde
2024-09-30 10:22 ` Sebastian Andrzej Siewior
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