32 lines
1.2 KiB
Diff
32 lines
1.2 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Thomas Lamprecht <t.lamprecht@proxmox.com>
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Date: Fri, 7 Jun 2019 21:16:42 +0200
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Subject: [PATCH] Revert "KVM: VMX: enable nested virtualization by default"
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This reverts commit 1e58e5e59148916fa43444a406335a990783fb78
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As we're not yet there, and this effectively breaks live migration
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for all VMs using host or +vmx which did not manually enabled nesting
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Those which already enabled nesting manually have already breakage,
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but that was something to expect. The situation will get better in
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the future (probably post qemu 4.1).
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Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
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---
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arch/x86/kvm/vmx/vmx.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
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index 3be65495aeb8..8a600e93450f 100644
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--- a/arch/x86/kvm/vmx/vmx.c
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+++ b/arch/x86/kvm/vmx/vmx.c
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@@ -103,7 +103,7 @@ module_param(enable_apicv, bool, S_IRUGO);
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* VMX and be a hypervisor for its own guests. If nested=0, guests may not
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* use VMX instructions.
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*/
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-static bool __read_mostly nested = 1;
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+static bool __read_mostly nested = 0;
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module_param(nested, bool, S_IRUGO);
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static u64 __read_mostly host_xss;
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