qemu-patch-raspberry4/target-s390x/interrupt.c
Cornelia Huck 79afc36d91 s390x: consolidate floating interrupts
Move the injection code for all floating interrupts to interrupt.c
and add a comment.

Also get rid of the #ifdef CONFIG_KVM for the service interrupt.

Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2014-06-10 09:50:27 +02:00

63 lines
1.6 KiB
C

/*
* QEMU S/390 Interrupt support
*
* Copyright IBM Corp. 2012, 2014
*
* This work is licensed under the terms of the GNU GPL, version 2 or (at your
* option) any later version. See the COPYING file in the top-level directory.
*/
#include "cpu.h"
#include "sysemu/kvm.h"
/*
* All of the following interrupts are floating, i.e. not per-vcpu.
* We just need a dummy cpustate in order to be able to inject.
*/
#if !defined(CONFIG_USER_ONLY)
void s390_sclp_extint(uint32_t parm)
{
S390CPU *dummy_cpu = s390_cpu_addr2state(0);
CPUS390XState *env = &dummy_cpu->env;
if (kvm_enabled()) {
kvm_s390_service_interrupt(dummy_cpu, parm);
} else {
env->psw.addr += 4;
cpu_inject_ext(dummy_cpu, EXT_SERVICE, parm, 0);
}
}
void s390_virtio_irq(S390CPU *cpu, int config_change, uint64_t token)
{
if (kvm_enabled()) {
kvm_s390_virtio_irq(cpu, config_change, token);
} else {
cpu_inject_ext(cpu, EXT_VIRTIO, config_change, token);
}
}
void s390_io_interrupt(S390CPU *cpu, uint16_t subchannel_id,
uint16_t subchannel_nr, uint32_t io_int_parm,
uint32_t io_int_word)
{
if (kvm_enabled()) {
kvm_s390_io_interrupt(cpu, subchannel_id, subchannel_nr, io_int_parm,
io_int_word);
} else {
cpu_inject_io(cpu, subchannel_id, subchannel_nr, io_int_parm,
io_int_word);
}
}
void s390_crw_mchk(S390CPU *cpu)
{
if (kvm_enabled()) {
kvm_s390_crw_mchk(cpu);
} else {
cpu_inject_crw_mchk(cpu);
}
}
#endif