KVM: PPC: Initialize linears with zeros

RMAs and HPT preallocated spaces should be zeroed, so we don't accidently
leak information from previous VM executions.

Signed-off-by: Alexander Graf <agraf@suse.de>
Acked-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Avi Kivity <avi@redhat.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/arch/powerpc/kvm/book3s_hv_builtin.c b/arch/powerpc/kvm/book3s_hv_builtin.c
index 1c7e6ab5f9de..7caed1dfd7a4 100644
--- a/arch/powerpc/kvm/book3s_hv_builtin.c
+++ b/arch/powerpc/kvm/book3s_hv_builtin.c
@@ -152,6 +152,7 @@ static struct kvmppc_linear_info *kvm_alloc_linear(int type)
                 break;
         }
         spin_unlock(&linear_lock);
+        memset(ri->base_virt, 0, ri->npages << PAGE_SHIFT);
         return ri;
 }