From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:42393 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932998AbbGHHYW (ORCPT ); Wed, 8 Jul 2015 03:24:22 -0400 Subject: Patch "KVM: s390: clear floating interrupt bitmap and parameters" has been added to the 4.1-stable tree To: jfrei@linux.vnet.ibm.com, borntraeger@de.ibm.com, gregkh@linuxfoundation.org, pbonzini@redhat.com Cc: , From: Date: Wed, 08 Jul 2015 00:24:16 -0700 Message-ID: <143634025647208@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled KVM: s390: clear floating interrupt bitmap and parameters to the 4.1-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: kvm-s390-clear-floating-interrupt-bitmap-and-parameters.patch and it can be found in the queue-4.1 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From f2ae45edbca7ba5324eef01719ede0151dc5cead Mon Sep 17 00:00:00 2001 From: Jens Freimann Date: Mon, 22 Jun 2015 13:20:12 +0200 Subject: KVM: s390: clear floating interrupt bitmap and parameters From: Jens Freimann 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 Signed-off-by: Christian Borntraeger Signed-off-by: Paolo Bonzini Signed-off-by: Greg Kroah-Hartman --- arch/s390/kvm/interrupt.c | 3 +++ 1 file changed, 3 insertions(+) --- a/arch/s390/kvm/interrupt.c +++ b/arch/s390/kvm/interrupt.c @@ -1606,6 +1606,9 @@ void kvm_s390_clear_float_irqs(struct kv 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++) Patches currently in stable-queue which might be from jfrei@linux.vnet.ibm.com are queue-4.1/kvm-s390-clear-floating-interrupt-bitmap-and-parameters.patch queue-4.1/kvm-s390-fix-external-call-injection-without-sigp-interpretation.patch