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authorIan Lewis <ianlewis@google.com>2019-12-21 03:27:52 -0500
committerIan Lewis <ianlewis@google.com>2020-03-11 09:36:58 +0900
commit7a3048954a537b82f2dfd5cf81600585820ffd3a (patch)
tree3da30fb03c701d06fab904073ccc7f9e97df3180 /content/docs
parent5f723ac601e8ea6eb3216f60fce49b771ef87e0a (diff)
Add note on nested virtualization
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diff --git a/content/docs/user_guide/platforms.md b/content/docs/user_guide/platforms.md
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+++ b/content/docs/user_guide/platforms.md
@@ -63,6 +63,11 @@ nested virtualization in several popular environments:
* VirtualBox: [Nested Virtualization][nested-virtualbox]
* KVM: [Nested Guests][nested-kvm]
+***Note: nested virtualization will have poor performance and is historically a
+cause of security issues (e.g.
+[CVE-2018-12904](https://nvd.nist.gov/vuln/detail/CVE-2018-12904)). It is not
+recommended for production.***
+
### Configuring Docker
Per above, you will need to configure Docker to use `runsc` with the KVM