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authorEkaterina Tumanova <tumanova@linux.vnet.ibm.com>2015-03-03 09:54:41 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-05-06 21:56:21 +0200
commit38db3faa86115d76cc9df29b3706cb90d6583a77 (patch)
tree03ab9dc6457f891632ac075596f5f27733ce656c /arch
parent3518a2e4bbe8c336d3f59138d1f7bdd628a841b3 (diff)
downloadlinux-linaro-stable-38db3faa86115d76cc9df29b3706cb90d6583a77.tar.gz
KVM: s390: Zero out current VMDB of STSI before including level3 data.
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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/s390/kvm/priv.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c
index 6bbd7b5a0bbe..0220c2ba7590 100644
--- a/arch/s390/kvm/priv.c
+++ b/arch/s390/kvm/priv.c
@@ -328,6 +328,7 @@ 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;