From: Peter Zijlstra <peterz@infradead.org>
To: frederic@kernel.org, paulmck@kernel.org, rjw@rjwysocki.net,
x86@kernel.org, kirill.shutemov@linux.intel.com
Cc: linux-kernel@vger.kernel.org, jpoimboe@kernel.org
Subject: Re: [RFC][PATCH 9/9] arch/idle: Change arch_cpu_idle() IRQ behaviour
Date: Fri, 20 May 2022 00:03:49 +0200 [thread overview]
Message-ID: <20220519220349.GM2578@worktop.programming.kicks-ass.net> (raw)
In-Reply-To: <20220519213422.119695559@infradead.org>
On Thu, May 19, 2022 at 11:27:59PM +0200, Peter Zijlstra wrote:
> --- a/arch/x86/coco/tdx/tdx.c
> +++ b/arch/x86/coco/tdx/tdx.c
> @@ -178,6 +178,9 @@ void __cpuidle tdx_safe_halt(void)
> */
> if (__halt(irq_disabled, do_sti))
> WARN_ONCE(1, "HLT instruction emulation failed\n");
> +
> + /* XXX I can't make sense of what @do_sti actually does */
> + raw_local_irq_disable();
> }
>
Kirill, Dave says I should prod you :-)
next prev parent reply other threads:[~2022-05-19 22:04 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-19 21:27 [RFC][PATCH 0/9] Rework cpuidle vs instrumentation Peter Zijlstra
2022-05-19 21:27 ` [RFC][PATCH 1/9] x86/perf/amd: Remove tracing from perf_lopwr_cb() Peter Zijlstra
2022-05-19 21:27 ` [RFC][PATCH 2/9] x86/idle: Replace x86_idle with a static_call Peter Zijlstra
2022-05-30 11:07 ` Frederic Weisbecker
2022-05-19 21:27 ` [RFC][PATCH 3/9] cpuidle: Move IRQ state validation Peter Zijlstra
2022-05-30 11:36 ` Frederic Weisbecker
2022-05-30 12:00 ` Peter Zijlstra
2022-05-19 21:27 ` [RFC][PATCH 4/9] idle: Fix rcu_idle_*() usage Peter Zijlstra
2022-05-23 9:46 ` Gautham R. Shenoy
2022-05-31 9:33 ` Peter Zijlstra
2022-05-19 21:27 ` [RFC][PATCH 5/9] rcu: Fix rcu_idle_exit() Peter Zijlstra
2022-05-20 21:00 ` Paul E. McKenney
2022-05-19 21:27 ` [RFC][PATCH 6/9] acpi_idle: Remove tracing Peter Zijlstra
2022-05-19 21:27 ` [RFC][PATCH 7/9] cpuidle: Annotate poll_idle() Peter Zijlstra
2022-05-19 21:27 ` [RFC][PATCH 8/9] objtool/idle: Validate __cpuidle code as noinstr Peter Zijlstra
2022-05-19 21:27 ` [RFC][PATCH 9/9] arch/idle: Change arch_cpu_idle() IRQ behaviour Peter Zijlstra
2022-05-19 22:03 ` Peter Zijlstra [this message]
2022-05-20 2:20 ` Kirill A. Shutemov
2022-05-20 7:06 ` Peter Zijlstra
2022-05-20 10:13 ` Kirill A. Shutemov
2022-05-20 12:58 ` Peter Zijlstra
2022-05-24 14:55 ` Isaku Yamahata
2022-05-23 10:02 ` Gautham R. Shenoy
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