AWS cli documentation change

Service: cli · 2026-02-13 · Documentation low

File: cli/latest/reference/ec2/run-instances.md

Summary

Added new r8id instance types and nested virtualization option. Updated AWS CLI version reference.

Security assessment

Added documentation for nested virtualization feature which mentions that enabling it automatically disables Virtual Secure Mode (VSM), a security feature. This documents security implications but doesn't address a specific vulnerability.

Diff

diff --git a/cli/latest/reference/ec2/run-instances.md b/cli/latest/reference/ec2/run-instances.md
index 3e8cc5996..8bd3be657 100644
--- a//cli/latest/reference/ec2/run-instances.md
+++ b//cli/latest/reference/ec2/run-instances.md
@@ -15 +15 @@
-  * [AWS CLI 2.33.18 Command Reference](../../index.html) »
+  * [AWS CLI 2.33.21 Command Reference](../../index.html) »
@@ -1539,0 +1540,13 @@ JSON Syntax:
+>   * `r8id.large`
+>   * `r8id.xlarge`
+>   * `r8id.2xlarge`
+>   * `r8id.4xlarge`
+>   * `r8id.8xlarge`
+>   * `r8id.12xlarge`
+>   * `r8id.16xlarge`
+>   * `r8id.24xlarge`
+>   * `r8id.32xlarge`
+>   * `r8id.48xlarge`
+>   * `r8id.96xlarge`
+>   * `r8id.metal-48xl`
+>   * `r8id.metal-96xl`
@@ -2226,0 +2240,11 @@ JSON Syntax:
+> 
+> NestedVirtualization -> (string)
+>
+>> Indicates whether to enable the instance for nested virtualization. Nested virtualization is supported only on 8th generation Intel-based instance types (c8i, m8i, r8i, and their flex variants). When nested virtualization is enabled, Virtual Secure Mode (VSM) is automatically disabled for the instance.
+>> 
+>> Possible values:
+>> 
+>>   * `enabled`
+>>   * `disabled`
+>> 
+
@@ -2231 +2255 @@ Shorthand Syntax:
-    CoreCount=integer,ThreadsPerCore=integer,AmdSevSnp=string
+    CoreCount=integer,ThreadsPerCore=integer,AmdSevSnp=string,NestedVirtualization=string
@@ -2240 +2264,2 @@ JSON Syntax:
-      "AmdSevSnp": "enabled"|"disabled"
+      "AmdSevSnp": "enabled"|"disabled",
+      "NestedVirtualization": "enabled"|"disabled"
@@ -3996,0 +4022,11 @@ Instances -> (list)
+>>> 
+>>> NestedVirtualization -> (string)
+>>>
+>>>> Indicates whether the instance is enabled for nested virtualization.
+>>>> 
+>>>> Possible values:
+>>>> 
+>>>>   * `enabled`
+>>>>   * `disabled`
+>>>> 
+
@@ -5656,0 +5693,13 @@ Instances -> (list)
+>>>   * `r8id.large`
+>>>   * `r8id.xlarge`
+>>>   * `r8id.2xlarge`
+>>>   * `r8id.4xlarge`
+>>>   * `r8id.8xlarge`
+>>>   * `r8id.12xlarge`
+>>>   * `r8id.16xlarge`
+>>>   * `r8id.24xlarge`
+>>>   * `r8id.32xlarge`
+>>>   * `r8id.48xlarge`
+>>>   * `r8id.96xlarge`
+>>>   * `r8id.metal-48xl`
+>>>   * `r8id.metal-96xl`
@@ -5803 +5852 @@ Instances -> (list)
-  * [AWS CLI 2.33.18 Command Reference](../../index.html) »
+  * [AWS CLI 2.33.21 Command Reference](../../index.html) »