From 1deaf0f816ffc08d04bfeb8aaf860f16eb1dcb06 Mon Sep 17 00:00:00 2001 From: Thomas Lamprecht Date: Tue, 2 Mar 2021 13:34:34 +0100 Subject: [PATCH] stop reverting turning on nested virtualization by default Signed-off-by: Thomas Lamprecht --- ...nable-nested-virtualization-by-defau.patch | 32 ------------------- 1 file changed, 32 deletions(-) delete mode 100644 patches/kernel/0005-Revert-KVM-VMX-enable-nested-virtualization-by-defau.patch diff --git a/patches/kernel/0005-Revert-KVM-VMX-enable-nested-virtualization-by-defau.patch b/patches/kernel/0005-Revert-KVM-VMX-enable-nested-virtualization-by-defau.patch deleted file mode 100644 index a6e7508..0000000 --- a/patches/kernel/0005-Revert-KVM-VMX-enable-nested-virtualization-by-defau.patch +++ /dev/null @@ -1,32 +0,0 @@ -From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 -From: Thomas Lamprecht -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 ---- - 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 2a1ed3aae100..c5dd076e8e61 100644 ---- a/arch/x86/kvm/vmx/vmx.c -+++ b/arch/x86/kvm/vmx/vmx.c -@@ -103,7 +103,7 @@ 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; -- 2.39.2