diff options
author | Christian Borntraeger <borntraeger@de.ibm.com> | 2012-07-23 21:37:05 +0000 |
---|---|---|
committer | Alexander Graf <agraf@suse.de> | 2012-08-15 17:47:09 +0200 |
commit | 000a1a3800b532f97b939ebb777d5a14418f44a6 (patch) | |
tree | 9528aa20777ba7063d581d6e39d407fdd615e951 | |
parent | 9abf567d95a4e840df868ca993219175fbef8c22 (diff) |
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 <borntraeger@de.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
-rw-r--r-- | target-s390x/Makefile.objs | 2 | ||||
-rw-r--r-- | target-s390x/cpu.h | 3 | ||||
-rw-r--r-- | target-s390x/interrupt.c | 29 | ||||
-rw-r--r-- | target-s390x/op_helper.c | 16 |
4 files changed, 34 insertions, 16 deletions
diff --git a/target-s390x/Makefile.objs b/target-s390x/Makefile.objs index 262747f8a6..80be3bbdb2 100644 --- a/target-s390x/Makefile.objs +++ b/target-s390x/Makefile.objs @@ -1,4 +1,4 @@ -obj-y += translate.o op_helper.o helper.o cpu.o +obj-y += translate.o op_helper.o helper.o cpu.o interrupt.o obj-$(CONFIG_SOFTMMU) += machine.o obj-$(CONFIG_KVM) += kvm.o diff --git a/target-s390x/cpu.h b/target-s390x/cpu.h index c30ac3a0e1..18ac6e3938 100644 --- a/target-s390x/cpu.h +++ b/target-s390x/cpu.h @@ -320,6 +320,9 @@ S390CPU *s390_cpu_addr2state(uint16_t cpu_addr); void s390_add_running_cpu(CPUS390XState *env); unsigned s390_del_running_cpu(CPUS390XState *env); +/* service interrupts are floating therefore we must not pass an cpustate */ +void s390_sclp_extint(uint32_t parm); + /* from s390-virtio-bus */ extern const target_phys_addr_t virtio_size; 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 diff --git a/target-s390x/op_helper.c b/target-s390x/op_helper.c index 91dd8dc3fb..abc35ddd7b 100644 --- a/target-s390x/op_helper.c +++ b/target-s390x/op_helper.c @@ -2362,12 +2362,6 @@ static void program_interrupt(CPUS390XState *env, uint32_t code, int ilc) } } -static void ext_interrupt(CPUS390XState *env, int type, uint32_t param, - uint64_t param64) -{ - cpu_inject_ext(env, type, param, param64); -} - /* * ret < 0 indicates program check, ret = 0,1,2,3 -> cc */ @@ -2398,15 +2392,7 @@ int sclp_service_call(CPUS390XState *env, uint32_t sccb, uint64_t code) stb_phys(sccb + SCP_INCREMENT, 1 << shift); stw_phys(sccb + SCP_RESPONSE_CODE, 0x10); - if (kvm_enabled()) { -#ifdef CONFIG_KVM - kvm_s390_interrupt_internal(env, KVM_S390_INT_SERVICE, - sccb & ~3, 0, 1); -#endif - } else { - env->psw.addr += 4; - ext_interrupt(env, EXT_SERVICE, sccb & ~3, 0); - } + s390_sclp_extint(sccb & ~3); break; default: #ifdef DEBUG_HELPER |