VBoxManage modifyvm "Whonix-Workstation" -spec-ctrl on VBoxManage modifyvm "Whonix-Workstation" -l1d-flush-on-sched on VBoxManage modifyvm "Whonix-Workstation" -l1d-flush-on-vm-entry on VBoxManage modifyvm "Whonix-Workstation" -ibpb-on-vm-exit on VBoxManage modifyvm "Whonix-Workstation" -ibpb-on-vm-entry on VBoxManage modifyvm "Whonix-Gateway" -mds-clear-on-sched on VBoxManage modifyvm "Whonix-Gateway" -mds-clear-on-vm-entry on VBoxManage modifyvm "Whonix-Gateway" -nestedpaging off VBoxManage modifyvm "Whonix-Gateway" -spec-ctrl on VBoxManage modifyvm "Whonix-Gateway" -l1d-flush-on-sched on VBoxManage modifyvm "Whonix-Gateway" -l1d-flush-on-vm-entry on VBoxManage modifyvm "Whonix-Gateway" -ibpb-on-vm-exit on VBoxManage modifyvm "Whonix-Gateway" -ibpb-on-vm-entry on Users must patiently wait for VirtualBox developers to fix this bug. To learn more, see: VirtualBox 5.2.18 vulnerable to spectre/meltdown despite microcode being installed and the associated VirtualBox forum discussion. All Spectre/Meltdown-related VirtualBox settings are tuned for better security as documented below. Installation of the latest VirtualBox version.A "not vulnerable" result from spectre-meltdown-checker run on the host.The reason is VirtualBox is still likely vulnerable, even after: Due to the huge performance penalty and unclear security benefits of applying these changes, it may not be worth the effort. These experimental Spectre/Meltdown defenses are related to issues outlined in Firmware Security and Updates.
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