| From | Jiri Slaby <> | Subject | [PATCH 3.12 015/142] KVM: s390: Zero out current VMDB of STSI before including level3 data. | Date | Sat, 16 May 2015 09:36:15 +0200 |
| |
From: Ekaterina Tumanova <tumanova@linux.vnet.ibm.com>
3.12-stable review patch. If anyone has any objections, please let me know.
===============
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 <tumanova@linux.vnet.ibm.com> Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Jiri Slaby <jslaby@suse.cz> --- arch/s390/kvm/priv.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c index 59200ee275e5..563d7d883ac4 100644 --- a/arch/s390/kvm/priv.c +++ b/arch/s390/kvm/priv.c @@ -355,6 +355,7 @@ 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; -- 2.3.7
|