The following commit has been merged into the x86/irq branch of tip: Commit-ID: 504dba50b0c3fa02ec513d7d0405ddffba2d1c0a Gitweb: https://git.kernel.org/tip/504dba50b0c3fa02ec513d7d0405ddffba2d1c0a Author: Michael Kelley <mikelley@xxxxxxxxxxxxx> AuthorDate: Mon, 27 Feb 2023 10:46:08 -08:00 Committer: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx> CommitterDate: Thu, 08 Jun 2023 08:28:08 -07:00 x86/irq: Add hardcoded hypervisor interrupts to /proc/stat 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. Use #if IS_ENABLED() because unlike all the other nearby #ifdefs, CONFIG_HYPERV can be built as a module. Signed-off-by: Michael Kelley <mikelley@xxxxxxxxxxxxx> Signed-off-by: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx> Link: https://lore.kernel.org/all/1677523568-50263-1-git-send-email-mikelley%40microsoft.com --- 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);
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