From 052ff461c8427629aee887ccc27478fc7373237c Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Wed, 5 Jan 2011 12:47:28 +0100 Subject: [S390] irq: have detailed statistics for interrupt types Up to now /proc/interrupts only has statistics for external and i/o interrupts but doesn't split up them any further. This patch adds a line for every single interrupt source so that it is possible to easier tell what the machine is/was doing. Part of the output now looks like this; CPU0 CPU2 CPU4 EXT: 3898 4232 2305 I/O: 782 315 245 CLK: 1029 1964 727 [EXT] Clock Comparator IPI: 2868 2267 1577 [EXT] Signal Processor TMR: 0 0 0 [EXT] CPU Timer TAL: 0 0 0 [EXT] Timing Alert PFL: 0 0 0 [EXT] Pseudo Page Fault [...] NMI: 0 1 1 [NMI] Machine Checks Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky --- drivers/s390/kvm/kvm_virtio.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/s390/kvm') diff --git a/drivers/s390/kvm/kvm_virtio.c b/drivers/s390/kvm/kvm_virtio.c index 375aeeaf9ea5..414427d64a8f 100644 --- a/drivers/s390/kvm/kvm_virtio.c +++ b/drivers/s390/kvm/kvm_virtio.c @@ -10,6 +10,7 @@ * Author(s): Christian Borntraeger */ +#include #include #include #include @@ -25,6 +26,7 @@ #include #include #include +#include #define VIRTIO_SUBCODE_64 0x0D00 @@ -379,6 +381,7 @@ static void kvm_extint_handler(unsigned int ext_int_code, u16 subcode; u32 param; + kstat_cpu(smp_processor_id()).irqs[EXTINT_VRT]++; subcode = ext_int_code >> 16; if ((subcode & 0xff00) != VIRTIO_SUBCODE_64) return; -- cgit v1.2.3