Commit-ID: 929320e4b4c10708d3477d7e395f0ce7b0cc8744 Gitweb: http://git.kernel.org/tip/929320e4b4c10708d3477d7e395f0ce7b0cc8744 Author: Thomas Gleixner <t...@linutronix.de> AuthorDate: Sun, 23 Feb 2014 21:40:20 +0000 Committer: Thomas Gleixner <t...@linutronix.de> CommitDate: Tue, 4 Mar 2014 17:37:54 +0100
x86: Add proper vector accounting for HYPERVISOR_CALLBACK_VECTOR HyperV abuses a device interrupt to account for the HYPERVISOR_CALLBACK_VECTOR. Provide proper accounting as we have for the other vectors as well. Signed-off-by: Thomas Gleixner <t...@linutronix.de> Cc: Peter Zijlstra <pet...@infradead.org> Cc: Konrad Rzeszutek Wilk <konrad.w...@oracle.com> Cc: K. Y. Srinivasan <k...@microsoft.com> Cc: x86 <x...@kernel.org> Link: http://lkml.kernel.org/r/20140223212738.681855...@linutronix.de Signed-off-by: Thomas Gleixner <t...@linutronix.de> --- arch/x86/include/asm/hardirq.h | 3 +++ arch/x86/kernel/irq.c | 6 ++++++ 2 files changed, 9 insertions(+) diff --git a/arch/x86/include/asm/hardirq.h b/arch/x86/include/asm/hardirq.h index ab0ae1a..afb6536 100644 --- a/arch/x86/include/asm/hardirq.h +++ b/arch/x86/include/asm/hardirq.h @@ -33,6 +33,9 @@ typedef struct { #ifdef CONFIG_X86_MCE_THRESHOLD unsigned int irq_threshold_count; #endif +#if defined(CONFIG_HYPERV) || defined(CONFIG_XEN) + unsigned int irq_hv_callback_count; +#endif } ____cacheline_aligned irq_cpustat_t; DECLARE_PER_CPU_SHARED_ALIGNED(irq_cpustat_t, irq_stat); diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c index d99f31d..42805fa 100644 --- a/arch/x86/kernel/irq.c +++ b/arch/x86/kernel/irq.c @@ -125,6 +125,12 @@ int arch_show_interrupts(struct seq_file *p, int prec) seq_printf(p, "%10u ", per_cpu(mce_poll_count, j)); seq_printf(p, " Machine check polls\n"); #endif +#if defined(CONFIG_HYPERV) || defined(CONFIG_XEN) + seq_printf(p, "%*s: ", prec, "THR"); + for_each_online_cpu(j) + seq_printf(p, "%10u ", irq_stats(j)->irq_hv_callback_count); + seq_printf(p, " Hypervisor callback interrupts\n"); +#endif seq_printf(p, "%*s: %10u\n", prec, "ERR", atomic_read(&irq_err_count)); #if defined(CONFIG_X86_IO_APIC) seq_printf(p, "%*s: %10u\n", prec, "MIS", atomic_read(&irq_mis_count)); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
