alt Hacker NewsAWS Adds support for nested virtualization
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Support for nested virtualization has been added to the main SDKs. In the us-west-2 region, you can already see the "Nested Virtualization" option and use it with the new M8id, C8id, and R8id instance types.
This is really big news for micro-VM sandbox solutions like E2B, which I work on.
Could someone explain why this is might be a big deal?
I remember playing with nested virty some years ago and deciding it is a backwards step except for PoC and the like. Given I haven't personally run out of virty gear, I never needed to do a PoC.
Would love to see performance numbers with nested virtualization, particularly that of IO-bound workloads.
What's the performance impact for nested virtualization in general? I'd think this would be adding multiple layers of MMU overhead.
Sounds expensive for legacy apps
hell yes, finally
"* *Feature*: Launching nested virtualization. This feature allows you to run nested VMs inside virtual (non-bare metal) EC2 instances."
This is a big deal because you can now run Firecracker/other microVMs in an AWS VM instead of expensive AWS bare-metal instances.
GCP has had nested virtualization for a while.