Initial Configuration of the Control Domain

Initially, all system resources are allocated to the control domain. To allow the creation of other logical domains, you must release some of these resources.

Do not attempt to use memory dynamic reconfiguration (DR) to perform the initial configuration of the control domain. Although you can use memory DR to perform this configuration without needing a reboot, it is not recommended. The memory DR approach might take a very long time (longer than a reboot) and could even potentially fail. Instead, use the ldm start-reconf command to place the control domain in delayed reconfiguration mode before you change the memory configuration. Then, you can reboot the control domain after you complete all the configuration steps.

How to Set Up the Control Domain

Note - This procedure contains examples of resources to set for your control domain. These numbers are examples only, and the values used might not be appropriate for your control domain.

Determine whether you have cryptographic devices in the control domain.
Note that only UltraSPARC T2, UltraSPARC T2 Plus, and SPARC T3 platforms might have cryptographic devices.
```
primary# ldm list -o crypto primary
```
Assign cryptographic resources to the control domain, if applicable.
The following example would assign one cryptographic resource to the control domain, primary. This leaves the remainder of the cryptographic resources available to a guest domain.
```
primary# ldm set-mau 1 primary
```
Assign virtual CPUs to the control domain.
For example, the following command would assign 8 virtual CPUs to the control domain, primary. This leaves the remainder of the virtual CPUs available to a guest domain.
```
primary# ldm set-vcpu 8 primary
```
Initiate a delayed reconfiguration on the control domain.
```
primary# ldm start-reconf primary
```
Assign memory to the control domain.
For example, the following command would assign 4 gigabytes of memory to the control domain, primary. This leaves the remainder of the memory available to a guest domain.
```
primary# ldm set-memory 4G primary
```
Add a logical domain machine configuration to the service processor (SP).
For example, the following command would add a configuration called initial.
```
primary# ldm add-config initial
```
Verify that the configuration is ready to be used at the next reboot.
```
primary# ldm list-config
factory-default
initial [next poweron]
```
This list subcommand shows the initial configuration set will be used once you powercycle.

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	Oracle VM Server for SPARC 2.2 Administration Guide Oracle VM Server for SPARC