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authorJens Freimann <jfrei@linux.vnet.ibm.com>2014-02-11 13:48:07 +0100
committerChristian Borntraeger <borntraeger@de.ibm.com>2014-03-25 13:27:12 +0100
commit2ed10cc15e7edf2daf22ce807a877a1266e97711 (patch)
tree07af72afb5acc318c9ee4e8c562e74dd324912d4 /arch/s390
parent91880d07fc9b2b6b7a726765039897af99d9ca78 (diff)
KVM: s390: clear local interrupts at cpu initial reset
Empty list of local interrupts when vcpu goes through initial reset to provide a clean state Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'arch/s390')
-rw-r--r--arch/s390/kvm/interrupt.c14
-rw-r--r--arch/s390/kvm/kvm-s390.c1
-rw-r--r--arch/s390/kvm/kvm-s390.h1
3 files changed, 16 insertions, 0 deletions
diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c
index 79d2e4fa9f9c..05bffd74961f 100644
--- a/arch/s390/kvm/interrupt.c
+++ b/arch/s390/kvm/interrupt.c
@@ -509,6 +509,20 @@ enum hrtimer_restart kvm_s390_idle_wakeup(struct hrtimer *timer)
return HRTIMER_NORESTART;
}
+void kvm_s390_clear_local_irqs(struct kvm_vcpu *vcpu)
+{
+ struct kvm_s390_local_interrupt *li = &vcpu->arch.local_int;
+ struct kvm_s390_interrupt_info *n, *inti = NULL;
+
+ spin_lock_bh(&li->lock);
+ list_for_each_entry_safe(inti, n, &li->list, list) {
+ list_del(&inti->list);
+ kfree(inti);
+ }
+ atomic_set(&li->active, 0);
+ spin_unlock_bh(&li->lock);
+}
+
void kvm_s390_deliver_pending_interrupts(struct kvm_vcpu *vcpu)
{
struct kvm_s390_local_interrupt *li = &vcpu->arch.local_int;
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index a02979f1e1af..83b79447de55 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -395,6 +395,7 @@ static void kvm_s390_vcpu_initial_reset(struct kvm_vcpu *vcpu)
vcpu->arch.pfault_token = KVM_S390_PFAULT_TOKEN_INVALID;
kvm_clear_async_pf_completion_queue(vcpu);
atomic_set_mask(CPUSTAT_STOPPED, &vcpu->arch.sie_block->cpuflags);
+ kvm_s390_clear_local_irqs(vcpu);
}
int kvm_arch_vcpu_postcreate(struct kvm_vcpu *vcpu)
diff --git a/arch/s390/kvm/kvm-s390.h b/arch/s390/kvm/kvm-s390.h
index ed4750a5bc3c..6311170843b6 100644
--- a/arch/s390/kvm/kvm-s390.h
+++ b/arch/s390/kvm/kvm-s390.h
@@ -129,6 +129,7 @@ enum hrtimer_restart kvm_s390_idle_wakeup(struct hrtimer *timer);
void kvm_s390_tasklet(unsigned long parm);
void kvm_s390_deliver_pending_interrupts(struct kvm_vcpu *vcpu);
void kvm_s390_deliver_pending_machine_checks(struct kvm_vcpu *vcpu);
+void kvm_s390_clear_local_irqs(struct kvm_vcpu *vcpu);
int __must_check kvm_s390_inject_vm(struct kvm *kvm,
struct kvm_s390_interrupt *s390int);
int __must_check kvm_s390_inject_vcpu(struct kvm_vcpu *vcpu,