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KVM: s390: cleanup struct kvm_s390_float_interrupt

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"wq" is not used at all. "cpuflags" can be access directly via the vcpu,
just as "float_int" via vcpu->kvm.
While at it, reuse _set_cpuflag() to make the code look nicer.

Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20180108193747.10818-1-david@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
This commit is contained in:
David Hildenbrand
2018-01-08 20:37:47 +01:00
committed by Christian Borntraeger
parent 1a5c79125a
commit a9f6c9a92f
5 changed files with 16 additions and 29 deletions
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25
arch/s390/kvm/interrupt.c
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@@ -107,12 +107,11 @@ static int sca_inject_ext_call(struct kvm_vcpu *vcpu, int src_id)
static void sca_clear_ext_call(struct kvm_vcpu *vcpu)
{
struct kvm_s390_local_interrupt *li = &vcpu->arch.local_int;
int rc, expect;
if (!kvm_s390_use_sca_entries())
return;
atomic_andnot(CPUSTAT_ECALL_PEND, li->cpuflags);
atomic_andnot(CPUSTAT_ECALL_PEND, &vcpu->arch.sie_block->cpuflags);
read_lock(&vcpu->kvm->arch.sca_lock);
if (vcpu->kvm->arch.use_esca) {
struct esca_block *sca = vcpu->kvm->arch.sca;
@@ -279,13 +278,13 @@ static unsigned long deliverable_irqs(struct kvm_vcpu *vcpu)
static void __set_cpu_idle(struct kvm_vcpu *vcpu)
{
atomic_or(CPUSTAT_WAIT, &vcpu->arch.sie_block->cpuflags);
set_bit(vcpu->vcpu_id, vcpu->arch.local_int.float_int->idle_mask);
set_bit(vcpu->vcpu_id, vcpu->kvm->arch.float_int.idle_mask);
}
static void __unset_cpu_idle(struct kvm_vcpu *vcpu)
{
atomic_andnot(CPUSTAT_WAIT, &vcpu->arch.sie_block->cpuflags);
clear_bit(vcpu->vcpu_id, vcpu->arch.local_int.float_int->idle_mask);
clear_bit(vcpu->vcpu_id, vcpu->kvm->arch.float_int.idle_mask);
}
static void __reset_intercept_indicators(struct kvm_vcpu *vcpu)
@@ -1228,7 +1227,7 @@ static int __inject_pfault_init(struct kvm_vcpu *vcpu, struct kvm_s390_irq *irq)
li->irq.ext = irq->u.ext;
set_bit(IRQ_PEND_PFAULT_INIT, &li->pending_irqs);
atomic_or(CPUSTAT_EXT_INT, li->cpuflags);
__set_cpuflag(vcpu, CPUSTAT_EXT_INT);
return 0;
}
@@ -1253,7 +1252,7 @@ static int __inject_extcall(struct kvm_vcpu *vcpu, struct kvm_s390_irq *irq)
if (test_and_set_bit(IRQ_PEND_EXT_EXTERNAL, &li->pending_irqs))
return -EBUSY;
*extcall = irq->u.extcall;
atomic_or(CPUSTAT_EXT_INT, li->cpuflags);
__set_cpuflag(vcpu, CPUSTAT_EXT_INT);
return 0;
}
@@ -1329,7 +1328,7 @@ static int __inject_sigp_emergency(struct kvm_vcpu *vcpu,
set_bit(irq->u.emerg.code, li->sigp_emerg_pending);
set_bit(IRQ_PEND_EXT_EMERGENCY, &li->pending_irqs);
atomic_or(CPUSTAT_EXT_INT, li->cpuflags);
__set_cpuflag(vcpu, CPUSTAT_EXT_INT);
return 0;
}
@@ -1373,7 +1372,7 @@ static int __inject_ckc(struct kvm_vcpu *vcpu)
0, 0);
set_bit(IRQ_PEND_EXT_CLOCK_COMP, &li->pending_irqs);
atomic_or(CPUSTAT_EXT_INT, li->cpuflags);
__set_cpuflag(vcpu, CPUSTAT_EXT_INT);
return 0;
}
@@ -1386,7 +1385,7 @@ static int __inject_cpu_timer(struct kvm_vcpu *vcpu)
0, 0);
set_bit(IRQ_PEND_EXT_CPU_TIMER, &li->pending_irqs);
atomic_or(CPUSTAT_EXT_INT, li->cpuflags);
__set_cpuflag(vcpu, CPUSTAT_EXT_INT);
return 0;
}
@@ -1546,7 +1545,6 @@ static int __inject_io(struct kvm *kvm, struct kvm_s390_interrupt_info *inti)
static void __floating_irq_kick(struct kvm *kvm, u64 type)
{
struct kvm_s390_float_interrupt *fi = &kvm->arch.float_int;
struct kvm_s390_local_interrupt *li;
struct kvm_vcpu *dst_vcpu;
int sigcpu, online_vcpus, nr_tries = 0;
@@ -1568,16 +1566,15 @@ static void __floating_irq_kick(struct kvm *kvm, u64 type)
dst_vcpu = kvm_get_vcpu(kvm, sigcpu);
/* make the VCPU drop out of the SIE, or wake it up if sleeping */
li = &dst_vcpu->arch.local_int;
switch (type) {
case KVM_S390_MCHK:
atomic_or(CPUSTAT_STOP_INT, li->cpuflags);
__set_cpuflag(dst_vcpu, CPUSTAT_STOP_INT);
break;
case KVM_S390_INT_IO_MIN...KVM_S390_INT_IO_MAX:
atomic_or(CPUSTAT_IO_INT, li->cpuflags);
__set_cpuflag(dst_vcpu, CPUSTAT_IO_INT);
break;
default:
atomic_or(CPUSTAT_EXT_INT, li->cpuflags);
__set_cpuflag(dst_vcpu, CPUSTAT_EXT_INT);
break;
}
kvm_s390_vcpu_wakeup(dst_vcpu);