diff options
| -rw-r--r-- | Documentation/virtual/kvm/api.txt | 2 | ||||
| -rw-r--r-- | arch/s390/kvm/interrupt.c | 32 | ||||
| -rw-r--r-- | include/uapi/linux/kvm.h | 2 |
3 files changed, 36 insertions, 0 deletions
diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt index 2014ff12b492..0581f6c40f2b 100644 --- a/Documentation/virtual/kvm/api.txt +++ b/Documentation/virtual/kvm/api.txt @@ -2211,6 +2211,8 @@ KVM_S390_SIGP_STOP (vcpu) - sigp restart KVM_S390_PROGRAM_INT (vcpu) - program check; code in parm KVM_S390_SIGP_SET_PREFIX (vcpu) - sigp set prefix; prefix address in parm KVM_S390_RESTART (vcpu) - restart +KVM_S390_INT_CLOCK_COMP (vcpu) - clock comparator interrupt +KVM_S390_INT_CPU_TIMER (vcpu) - CPU timer interrupt KVM_S390_INT_VIRTIO (vm) - virtio external interrupt; external interrupt parameters in parm and parm64 KVM_S390_INT_SERVICE (vm) - sclp external interrupt; sclp parameter in parm diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c index d9526bb29194..75cd3217cd5a 100644 --- a/arch/s390/kvm/interrupt.c +++ b/arch/s390/kvm/interrupt.c @@ -27,6 +27,8 @@ #define IOINT_CSSID_MASK 0x03fc0000 #define IOINT_AI_MASK 0x04000000 +static void deliver_ckc_interrupt(struct kvm_vcpu *vcpu); + static int is_ioint(u64 type) { return ((type & 0xfffe0000u) != 0xfffe0000u); @@ -89,6 +91,14 @@ static int __interrupt_is_deliverable(struct kvm_vcpu *vcpu, if (vcpu->arch.sie_block->gcr[0] & 0x4000ul) return 1; return 0; + case KVM_S390_INT_CLOCK_COMP: + return ckc_interrupts_enabled(vcpu); + case KVM_S390_INT_CPU_TIMER: + if (psw_extint_disabled(vcpu)) + return 0; + if (vcpu->arch.sie_block->gcr[0] & 0x400ul) + return 1; + return 0; case KVM_S390_INT_SERVICE: case KVM_S390_INT_PFAULT_INIT: case KVM_S390_INT_PFAULT_DONE: @@ -166,6 +176,8 @@ static void __set_intercept_indicator(struct kvm_vcpu *vcpu, case KVM_S390_INT_PFAULT_INIT: case KVM_S390_INT_PFAULT_DONE: case KVM_S390_INT_VIRTIO: + case KVM_S390_INT_CLOCK_COMP: + case KVM_S390_INT_CPU_TIMER: if (psw_extint_disabled(vcpu)) __set_cpuflag(vcpu, CPUSTAT_EXT_INT); else @@ -326,6 +338,24 @@ static void __do_deliver_interrupt(struct kvm_vcpu *vcpu, &vcpu->arch.sie_block->gpsw, sizeof(psw_t)); break; + case KVM_S390_INT_CLOCK_COMP: + trace_kvm_s390_deliver_interrupt(vcpu->vcpu_id, inti->type, + inti->ext.ext_params, 0); + deliver_ckc_interrupt(vcpu); + break; + case KVM_S390_INT_CPU_TIMER: + trace_kvm_s390_deliver_interrupt(vcpu->vcpu_id, inti->type, + inti->ext.ext_params, 0); + rc = put_guest_lc(vcpu, EXT_IRQ_CPU_TIMER, + (u16 *)__LC_EXT_INT_CODE); + rc |= write_guest_lc(vcpu, __LC_EXT_OLD_PSW, + &vcpu->arch.sie_block->gpsw, + sizeof(psw_t)); + rc |= read_guest_lc(vcpu, __LC_EXT_NEW_PSW, + &vcpu->arch.sie_block->gpsw, sizeof(psw_t)); + rc |= put_guest_lc(vcpu, inti->ext.ext_params, + (u32 *)__LC_EXT_PARAMS); + break; case KVM_S390_INT_SERVICE: VCPU_EVENT(vcpu, 4, "interrupt: sclp parm:%x", inti->ext.ext_params); @@ -984,6 +1014,8 @@ int kvm_s390_inject_vcpu(struct kvm_vcpu *vcpu, break; case KVM_S390_SIGP_STOP: case KVM_S390_RESTART: + case KVM_S390_INT_CLOCK_COMP: + case KVM_S390_INT_CPU_TIMER: VCPU_EVENT(vcpu, 3, "inject: type %x", s390int->type); inti->type = s390int->type; break; diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h index 836e15b7abc8..2b83cf35437a 100644 --- a/include/uapi/linux/kvm.h +++ b/include/uapi/linux/kvm.h @@ -416,6 +416,8 @@ struct kvm_s390_psw { #define KVM_S390_INT_PFAULT_INIT 0xfffe0004u #define KVM_S390_INT_PFAULT_DONE 0xfffe0005u #define KVM_S390_MCHK 0xfffe1000u +#define KVM_S390_INT_CLOCK_COMP 0xffff1004u +#define KVM_S390_INT_CPU_TIMER 0xffff1005u #define KVM_S390_INT_VIRTIO 0xffff2603u #define KVM_S390_INT_SERVICE 0xffff2401u #define KVM_S390_INT_EMERGENCY 0xffff1201u |