Commit 9d87cd61 authored by Vitaly Kuznetsov's avatar Vitaly Kuznetsov Committed by Ingo Molnar

x86/irq: Hide 'HYP:' line in /proc/interrupts when not on Xen/Hyper-V

Hypervisor callback interrupts are only accounted on
Xen/Hyper-V. There is no point in having always-zero HYP: line
on other hypervisors or bare metal. Print the line only if
HYPERVISOR_CALLBACK_VECTOR was allocated.
Reported-by: default avatarRadim Krčmář <rkrcmar@redhat.com>
Signed-off-by: default avatarVitaly Kuznetsov <vkuznets@redhat.com>
Cc: Andrew Jones <drjones@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1436286373-11908-1-git-send-email-vkuznets@redhat.comSigned-off-by: default avatarIngo Molnar <mingo@kernel.org>
parent d6ac4ffc
...@@ -139,10 +139,13 @@ int arch_show_interrupts(struct seq_file *p, int prec) ...@@ -139,10 +139,13 @@ int arch_show_interrupts(struct seq_file *p, int prec)
seq_puts(p, " Machine check polls\n"); seq_puts(p, " Machine check polls\n");
#endif #endif
#if IS_ENABLED(CONFIG_HYPERV) || defined(CONFIG_XEN) #if IS_ENABLED(CONFIG_HYPERV) || defined(CONFIG_XEN)
seq_printf(p, "%*s: ", prec, "HYP"); if (test_bit(HYPERVISOR_CALLBACK_VECTOR, used_vectors)) {
for_each_online_cpu(j) seq_printf(p, "%*s: ", prec, "HYP");
seq_printf(p, "%10u ", irq_stats(j)->irq_hv_callback_count); for_each_online_cpu(j)
seq_puts(p, " Hypervisor callback interrupts\n"); seq_printf(p, "%10u ",
irq_stats(j)->irq_hv_callback_count);
seq_puts(p, " Hypervisor callback interrupts\n");
}
#endif #endif
seq_printf(p, "%*s: %10u\n", prec, "ERR", atomic_read(&irq_err_count)); seq_printf(p, "%*s: %10u\n", prec, "ERR", atomic_read(&irq_err_count));
#if defined(CONFIG_X86_IO_APIC) #if defined(CONFIG_X86_IO_APIC)
......
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