From 000a1a3800b532f97b939ebb777d5a14418f44a6 Mon Sep 17 00:00:00 2001 From: Christian Borntraeger Date: Mon, 23 Jul 2012 21:37:05 +0000 Subject: s390: provide interface for service interrupt/introduce interrupt.c This patch creates interrupt.c. The first user is a callback for hw/* code to trigger an service interrupt for a given sccb value. Several interrupt types for s390 are floating (can be delivered to all CPUs). so this code does not belong to a specific CPU. Other interrupts (like the virtio one) are also floating and can be moved here later on. Signed-off-by: Christian Borntraeger Signed-off-by: Alexander Graf --- target-s390x/interrupt.c | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 target-s390x/interrupt.c (limited to 'target-s390x/interrupt.c') diff --git a/target-s390x/interrupt.c b/target-s390x/interrupt.c new file mode 100644 index 0000000000..c1b034f775 --- /dev/null +++ b/target-s390x/interrupt.c @@ -0,0 +1,29 @@ +/* + * QEMU S/390 Interrupt support + * + * Copyright IBM, Corp. 2012 + * + * 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 "kvm.h" + +#if !defined(CONFIG_USER_ONLY) +/* service interrupts are floating therefore we must not pass an cpustate */ +void s390_sclp_extint(uint32_t parm) +{ + S390CPU *dummy_cpu = s390_cpu_addr2state(0); + CPUS390XState *env = &dummy_cpu->env; + + if (kvm_enabled()) { +#ifdef CONFIG_KVM + kvm_s390_interrupt_internal(env, KVM_S390_INT_SERVICE, parm, 0, 1); +#endif + } else { + env->psw.addr += 4; + cpu_inject_ext(env, EXT_SERVICE, parm, 0); + } +} +#endif -- cgit v1.2.3