diff options
| author | Jens Freimann <jfrei@linux.vnet.ibm.com> | 2015-06-22 13:20:12 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-07-10 09:49:36 -0700 |
| commit | 534c9f9886c25221d4f4dd396cd78b67214c1796 (patch) | |
| tree | 7808cbc83687de64f4004999400e6f4d7be3734d | |
| parent | 14fe2f14d73609cfdb19b71467d085e5347f7353 (diff) | |
KVM: s390: clear floating interrupt bitmap and parameters
commit f2ae45edbca7ba5324eef01719ede0151dc5cead upstream.
commit 6d3da24141 ("KVM: s390: deliver floating interrupts in order
of priority") introduced a regression for the reset handling.
We don't clear the bitmap of pending floating interrupts
and interrupt parameters. This could result in stale interrupts
even after a reset. Let's fix this by clearing the pending bitmap
and the parameters for service and machine check interrupts.
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | arch/s390/kvm/interrupt.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c index 2836b25f63d3..b745a109bfc1 100644 --- a/arch/s390/kvm/interrupt.c +++ b/arch/s390/kvm/interrupt.c @@ -1606,6 +1606,9 @@ void kvm_s390_clear_float_irqs(struct kvm *kvm) int i; spin_lock(&fi->lock); + fi->pending_irqs = 0; + memset(&fi->srv_signal, 0, sizeof(fi->srv_signal)); + memset(&fi->mchk, 0, sizeof(fi->mchk)); for (i = 0; i < FIRQ_LIST_COUNT; i++) clear_irq_list(&fi->lists[i]); for (i = 0; i < FIRQ_MAX_COUNT; i++) |