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>

diff --git a/arch/powerpc/kvm/book3s_hv_builtin.c b/arch/powerpc/kvm/book3s_hv_builtin.c
index 1c7e6ab5f9de1075693b7fead4a01c6a0bc75123..7caed1dfd7a415ed5ea9fb36920bd413f9d3e82e 100644 (file)
--- 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;
 }