From: Ekaterina Tumanova Date: Tue, 3 Mar 2015 08:54:41 +0000 (+0100) Subject: KVM: s390: Zero out current VMDB of STSI before including level3 data. X-Git-Tag: v3.18.14~179 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=abd80ecb36d1f41f0498e57251d0c9aa2e3deb83;p=profile%2Fwearable%2Fplatform%2Fkernel%2Flinux-3.18-exynos7270.git KVM: s390: Zero out current VMDB of STSI before including level3 data. [ Upstream commit b75f4c9afac2604feb971441116c07a24ecca1ec ] 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 Cc: stable@vger.kernel.org Reviewed-by: David Hildenbrand Signed-off-by: Christian Borntraeger Signed-off-by: Sasha Levin --- diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c index 69cd0ce..a30102c 100644 --- a/arch/s390/kvm/priv.c +++ b/arch/s390/kvm/priv.c @@ -470,6 +470,7 @@ static void handle_stsi_3_2_2(struct kvm_vcpu *vcpu, struct sysinfo_3_2_2 *mem) 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;