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

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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: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Vitaly 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.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>

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This commit is contained in:

Vitaly Kuznetsov 2015-07-07 18:26:13 +02:00 • committed by Ingo Molnar

parent d6ac4ffc61

commit 9d87cd61a6

1 changed files with 7 additions and 4 deletions

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arch/x86/kernel/irq.c

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