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| author | Ekaterina Tumanova <tumanova@linux.vnet.ibm.com> | 2015-03-03 09:54:41 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-05-06 22:03:39 +0200 |
| commit | 7f1a4ebee923455bb5f50ab4ce832194dff859a7 (patch) | |
| tree | 1b07cd0b71fad88a81e4c040d1506594183cc6e5 | |
| parent | 98529eff3f93a3179a35f9ae459e21f64e8be813 (diff) | |
| download | lwn-7f1a4ebee923455bb5f50ab4ce832194dff859a7.tar.gz lwn-7f1a4ebee923455bb5f50ab4ce832194dff859a7.zip | |
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>
| -rw-r--r-- | arch/s390/kvm/priv.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c index 613e9f0764e0..b982fbca34df 100644 --- a/arch/s390/kvm/priv.c +++ b/arch/s390/kvm/priv.c @@ -476,6 +476,7 @@ 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; |