qemu/hw/intc/kvm_irqcount.c

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/*
* KVM PIC functions for counting the delivered IRQs.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>
*/
#include "qemu/osdep.h"
#include "hw/intc/kvm_irqcount.h"
#include "trace.h"
static int kvm_irq_delivered;
void kvm_report_irq_delivered(int delivered)
{
kvm_irq_delivered += delivered;
trace_kvm_report_irq_delivered(kvm_irq_delivered);
}
void kvm_reset_irq_delivered(void)
{
/*
* Copy this into a local variable to encourage gcc to emit a plain
* register for a sys/sdt.h marker. For details on this workaround, see:
* https://sourceware.org/bugzilla/show_bug.cgi?id=13296
*/
volatile int k_i_d = kvm_irq_delivered;
trace_kvm_reset_irq_delivered(k_i_d);
kvm_irq_delivered = 0;
}
int kvm_get_irq_delivered(void)
{
trace_kvm_get_irq_delivered(kvm_irq_delivered);
return kvm_irq_delivered;
}