4cea713adf
This patch adds brief overview and relation of mshv, igvm, and sev-snp features. Signed-off-by: Muminul Islam <muislam@microsoft.com>
1.2 KiB
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:
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:
./cloud-hypervisor \
--platform sev_snp=on \
--cpus boot=1 \
--memory size=1G \
--disk path=ubuntu.img
For more information related to Microsoft Hypervisor please see mshv.md