Unable to boot Windows 10 guest using VirtualBox with enabled Hyper-V and WSL2 installed [closed]

Downgrade to WSL1, if you want to save yourself from days of wasted effort. I’ve upgraded to WSL2 and tried a bit to get VirtualBox to work with it and I couldn’t find anything useful. There are few guides suggesting that turning off some features of VirtualBox will make it work, however it will make … Read more

WPF ListBox with a ListBox – UI Virtualization and Scrolling

It is possible to achieve smooth scrolling VirtualizingStackPanels in WPF 4.0 without sacrificing virtualization if you’re prepared to use reflection to access private functionality of the VirtualizingStackPanel. All you have to do is set the private IsPixelBased property of the VirtualizingStackPanel to true. Note that in .Net 4.5 there’s no need for this hack as … Read more

What exactly do shadow page tables (for VMMs) do?

Shadow page tables are used by the hypervisor to keep track of the state in which the guest “thinks” its page tables should be. The guest can’t be allowed access to the hardware page tables because then it would essentially have control of the machine. So, the hypervisor keeps the “real” mappings (guest virtual -> … Read more

What is the overhead of a context-switch?

As wikipedia knows in its Context switch article, “context switch is the process of storing and restoring the state (context) of a process so that execution can be resumed from the same point at a later time.“. I’ll assume context switch between two processes of the same OS, not the user/kernel mode transition (syscall) which … Read more

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