From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754998AbbHBANz (ORCPT ); Sat, 1 Aug 2015 20:13:55 -0400 Received: from shadbolt.e.decadent.org.uk ([88.96.1.126]:35886 "EHLO shadbolt.e.decadent.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751663AbbHBAJq (ORCPT ); Sat, 1 Aug 2015 20:09:46 -0400 Content-Type: text/plain; charset="UTF-8" Content-Disposition: inline Content-Transfer-Encoding: 8bit MIME-Version: 1.0 From: Ben Hutchings To: linux-kernel@vger.kernel.org, stable@vger.kernel.org CC: akpm@linux-foundation.org, "David Hildenbrand" , "Christian Borntraeger" , "Ekaterina Tumanova" Date: Sun, 02 Aug 2015 01:02:37 +0100 Message-ID: X-Mailer: LinuxStableQueue (scripts by bwh) Subject: [PATCH 3.2 004/164] KVM: s390: Zero out current VMDB of STSI before including level3 data. In-Reply-To: X-SA-Exim-Connect-IP: 192.168.4.249 X-SA-Exim-Mail-From: ben@decadent.org.uk X-SA-Exim-Scanned: No (on shadbolt.decadent.org.uk); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.2.70-rc1 review patch. If anyone has any objections, please let me know. ------------------ From: Ekaterina Tumanova commit b75f4c9afac2604feb971441116c07a24ecca1ec upstream. s390 documentation requires words 0 and 10-15 to be reserved and stored as zeros. As we fill out all other fields, we can memset the full structure. Signed-off-by: Ekaterina Tumanova Reviewed-by: David Hildenbrand Signed-off-by: Christian Borntraeger Signed-off-by: Ben Hutchings --- arch/s390/kvm/priv.c | 1 + 1 file changed, 1 insertion(+) --- a/arch/s390/kvm/priv.c +++ b/arch/s390/kvm/priv.c @@ -219,6 +219,7 @@ static void handle_stsi_3_2_2(struct kvm for (n = mem->count - 1; n > 0 ; n--) memcpy(&mem->vm[n], &mem->vm[n - 1], sizeof(mem->vm[0])); + memset(&mem->vm[0], 0, sizeof(mem->vm[0])); mem->vm[0].cpus_total = cpus; mem->vm[0].cpus_configured = cpus; mem->vm[0].cpus_standby = 0;