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| author | Julius Niedworok <jniedwor@linux.vnet.ibm.com> | 2016-08-03 16:39:54 +0200 |
|---|---|---|
| committer | Christian Borntraeger <borntraeger@de.ibm.com> | 2016-08-12 09:10:17 +0200 |
| commit | 75a4615c95a2de4fa592c1312fb8446e74b4e5eb (patch) | |
| tree | c7a57b6bfdf82a9f033ba0fc04dcc59307c6b97c /arch/s390/kvm/kvm-s390.c | |
| parent | 29b4817d4018df78086157ea3a55c1d9424a7cfc (diff) | |
| download | lwn-75a4615c95a2de4fa592c1312fb8446e74b4e5eb.tar.gz lwn-75a4615c95a2de4fa592c1312fb8446e74b4e5eb.zip | |
KVM: s390: set the prefix initially properly
When KVM_RUN is triggered on a VCPU without an initial reset, a
validity intercept occurs.
Setting the prefix will set the KVM_REQ_MMU_RELOAD bit initially,
thus preventing the bug.
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Julius Niedworok <jniedwor@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'arch/s390/kvm/kvm-s390.c')
| -rw-r--r-- | arch/s390/kvm/kvm-s390.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index 3f3ae4865d57..e63f6ed0a936 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -1672,6 +1672,7 @@ int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu) KVM_SYNC_CRS | KVM_SYNC_ARCH0 | KVM_SYNC_PFAULT; + kvm_s390_set_prefix(vcpu, 0); if (test_kvm_facility(vcpu->kvm, 64)) vcpu->run->kvm_valid_regs |= KVM_SYNC_RICCB; /* fprs can be synchronized via vrs, even if the guest has no vx. With |