From: Alexander Graf <agraf@suse.de>
Date: Tue, 17 Jan 2012 14:11:28 +0000 (+0100)
Subject: KVM: PPC: Initialize linears with zeros
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=b7f5d0114c708d6efd264a2c5e5a31cf292a9cec;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git

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 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;
 }