diff options
| author | Jens Freimann <jfrei@linux.vnet.ibm.com> | 2014-02-11 13:48:07 +0100 |
|---|---|---|
| committer | Christian Borntraeger <borntraeger@de.ibm.com> | 2014-03-25 13:27:12 +0100 |
| commit | 2ed10cc15e7edf2daf22ce807a877a1266e97711 (patch) | |
| tree | 07af72afb5acc318c9ee4e8c562e74dd324912d4 /arch/s390 | |
| parent | KVM: s390: Fix possible memory leak in SIGP functions (diff) | |
| download | linux-2ed10cc15e7edf2daf22ce807a877a1266e97711.tar.xz linux-2ed10cc15e7edf2daf22ce807a877a1266e97711.zip | |
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.c | 14 | ||||
| -rw-r--r-- | arch/s390/kvm/kvm-s390.c | 1 | ||||
| -rw-r--r-- | arch/s390/kvm/kvm-s390.h | 1 |
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, |