mirror of
https://github.com/cloud-hypervisor/cloud-hypervisor.git
synced 2024-12-22 21:55:20 +00:00
39 lines
1.1 KiB
Markdown
39 lines
1.1 KiB
Markdown
|
# AMD SEV-SNP
|
||
|
|
|
||
|
|
### WARNING
|
||
|
|
This feature is only currently supported on MSHV.
|
||
|
|
|
||
|
|
AMD Secure Encrypted Virtualization & Secure Nested Paging (SEV-SNP) is an AMD
|
||
|
|
technology designed to add strong memory integrity protection to help prevent
|
||
|
|
malicious hypervisor-based attacks like data replay, memory-remapping and more
|
||
|
|
in order to create an isolated execution environment. Here are some useful
|
||
|
|
links:
|
||
|
|
|
||
|
|
* [SNP Homepage] (https://www.amd.com/en/processors/amd-secure-encrypted-virtualization)
|
||
|
|
more information about SEV-SNP technical aspects, design and specification.
|
||
|
|
|
||
|
|
## Cloud Hypervisor support
|
||
|
|
|
||
|
|
It is required to use a machine which has enabled support for AMD SEV-SNP in
|
||
|
|
the BIOS.
|
||
|
|
|
||
|
|
On the Cloud Hypervisor side, all you need is to build the project with the
|
||
|
|
`sev_snp` feature enabled:
|
||
|
|
|
||
|
|
```bash
|
||
|
|
cargo build --no-default-features --features "sev_snp"
|
||
|
|
```
|
||
|
|
|
||
|
|
**Note**
|
||
|
|
Please note that `sev_snp` cannot be enabled in conjunction with `tdx` feature flag.
|
||
|
|
|
||
|
|
You can run a SEV-SNP VM using the following command:
|
||
|
|
|
||
|
|
```bash
|
||
|
|
./cloud-hypervisor \
|
||
|
|
--platform sev_snp=on \
|
||
|
|
--cpus boot=1 \
|
||
|
|
--memory size=1G \
|
||
|
|
--disk path=ubuntu.img
|
||
|
|
```
|