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by Latty
1667 days ago
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> An ideal VM should be indistinguishable from a real machine. Ideal for what purpose? virtio is a good example of where that breaks down. For a lot of use cases, directly exposing an explicitly virtual device rather than emulating real hardware can be much more efficient and avoid bugs. For example, it may help a virtualised system avoid some layers of caching or optimisation if they are redundant because they are nested inside a system already doing that. Making your VM indistinguishable from real hardware is nice for some use cases, absolutely, but in many it isn't what you want. |
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To shove it at companies like Tencent who will ban you for trying to run WeChat in a virtual machine, and restore freedom to the user to run software how they want. WeChat also randomly scans for Wi-Fi networks, I'm guessing they sniff VMs with tricks like that.
It should also be a violation of disability law to force users to use a hardware mobile phone to run a particular piece of software. VMs open the doors to custom accessibility solutions.
They shouldn't even have the right to know what it's running on, they should just hand me bytecode of a suggested (but not required) client, and open a port on their server for service.
Also in general to shove it at any company with potential spyware. I always run unknown closed-source software in a VM and I should have the basic right to do that. But sometimes those companies try to detect VMs. If the VM engine is good enough they shouldn't be able to.