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KVM: s390: Zero out current VMDB of STSI before including level3 data.

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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>
This commit is contained in:
Ekaterina Tumanova 2015-03-03 09:54:41 +01:00 committed by Greg Kroah-Hartman
parent 3518a2e4bb
commit 38db3faa86
1 changed files with 1 additions and 0 deletions
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arch/s390/kvm/priv.c
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@ -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--) for (n = mem->count - 1; n > 0 ; n--)
memcpy(&mem->vm[n], &mem->vm[n - 1], sizeof(mem->vm[0])); 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_total = cpus;
mem->vm[0].cpus_configured = cpus; mem->vm[0].cpus_configured = cpus;
mem->vm[0].cpus_standby = 0; mem->vm[0].cpus_standby = 0;