lkml.org 
[lkml]   [2023]   [Mar]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
SubjectRE: [PATCH 1/1] x86/irq: Add hardcoded hypervisor interrupts to /proc/stat
Date
From: Michael Kelley (LINUX) <mikelley@microsoft.com> Sent: Monday, February 27, 2023 10:46 AM
>
> Some hypervisor interrupts (such as for Hyper-V VMbus and Hyper-V timers)
> have hardcoded interrupt vectors on x86 and don't have Linux IRQs assigned.
> These interrupts are shown in /proc/interrupts, but are not reported in
> the first field of the "intr" line in /proc/stat because the x86 version
> of arch_irq_stat_cpu() doesn't include them.
>
> Fix this by adding code to arch_irq_stat_cpu() to include these interrupts,
> similar to existing interrupts that don't have Linux IRQs.
>
> Signed-off-by: Michael Kelley <mikelley@microsoft.com>

Gentle ping. Any comments on this patch? Seems pretty
straightforward to me ....

Michael

> ---
> arch/x86/kernel/irq.c | 7 +++++++
> 1 file changed, 7 insertions(+)
>
> diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c
> index 766ffe3..9f668d2 100644
> --- a/arch/x86/kernel/irq.c
> +++ b/arch/x86/kernel/irq.c
> @@ -211,6 +211,13 @@ u64 arch_irq_stat_cpu(unsigned int cpu)
> #ifdef CONFIG_X86_MCE_THRESHOLD
> sum += irq_stats(cpu)->irq_threshold_count;
> #endif
> +#ifdef CONFIG_X86_HV_CALLBACK_VECTOR
> + sum += irq_stats(cpu)->irq_hv_callback_count;
> +#endif
> +#if IS_ENABLED(CONFIG_HYPERV)
> + sum += irq_stats(cpu)->irq_hv_reenlightenment_count;
> + sum += irq_stats(cpu)->hyperv_stimer0_count;
> +#endif
> #ifdef CONFIG_X86_MCE
> sum += per_cpu(mce_exception_count, cpu);
> sum += per_cpu(mce_poll_count, cpu);
> --
> 1.8.3.1

\
 
 \ /
  Last update: 2023-03-27 01:09    [W:0.085 / U:0.472 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site