--- /dev/null
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Thomas Lamprecht <t.lamprecht@proxmox.com>
+Date: Fri, 7 Jun 2019 21:16:42 +0200
+Subject: [PATCH] Revert "KVM: VMX: enable nested virtualization by default"
+
+This reverts commit 1e58e5e59148916fa43444a406335a990783fb78
+
+As we're not yet there, and this effectively breaks live migration
+for all VMs using host or +vmx which did not manually enabled nesting
+
+Those which already enabled nesting manually have already breakage,
+but that was something to expect. The situation will get better in
+the future (probably post qemu 4.1).
+
+Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
+---
+ arch/x86/kvm/vmx/vmx.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
+index c2e017de4541..08bf16f447ab 100644
+--- a/arch/x86/kvm/vmx/vmx.c
++++ b/arch/x86/kvm/vmx/vmx.c
+@@ -106,7 +106,7 @@ module_param(enable_apicv, bool, S_IRUGO);
+ * VMX and be a hypervisor for its own guests. If nested=0, guests may not
+ * use VMX instructions.
+ */
+-static bool __read_mostly nested = 1;
++static bool __read_mostly nested = 0;
+ module_param(nested, bool, S_IRUGO);
+
+ static u64 __read_mostly host_xss;