From 501b32653ebf49114cccb9afbf9150cf18fd8700 Mon Sep 17 00:00:00 2001 From: Feng Wu Date: Tue, 19 May 2015 17:07:17 +0800 Subject: x86/irq: Show statistics information for posted-interrupts Show the statistics information for notification event and wakeup event for posted-interrupt in /proc/interrupts. [ tglx: Named the short identifiers PIN and PIW to match the long identifiers ] Signed-off-by: Feng Wu Cc: jiang.liu@linux.intel.com Link: http://lkml.kernel.org/r/1432026437-16560-5-git-send-email-feng.wu@intel.com Signed-off-by: Thomas Gleixner --- arch/x86/kernel/irq.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'arch/x86/kernel/irq.c') diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c index 90b2f7052f5b..7e10c8b4b318 100644 --- a/arch/x86/kernel/irq.c +++ b/arch/x86/kernel/irq.c @@ -141,6 +141,18 @@ int arch_show_interrupts(struct seq_file *p, int prec) 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)); +#endif +#ifdef CONFIG_HAVE_KVM + seq_printf(p, "%*s: ", prec, "PIN"); + for_each_online_cpu(j) + seq_printf(p, "%10u ", irq_stats(j)->kvm_posted_intr_ipis); + seq_puts(p, " Posted-interrupt notification event\n"); + + seq_printf(p, "%*s: ", prec, "PIW"); + for_each_online_cpu(j) + seq_printf(p, "%10u ", + irq_stats(j)->kvm_posted_intr_wakeup_ipis); + seq_puts(p, " Posted-interrupt wakeup event\n"); #endif return 0; } -- cgit v1.2.3-55-g7522