From fa1eee7dff5167eabd619c2c99eb0281ca31b962 Mon Sep 17 00:00:00 2001 From: Moritz Eckert Date: Tue, 20 Aug 2024 10:14:32 +0200 Subject: [PATCH] sort text as well --- docs/docs/overview/clouds.md | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/docs/docs/overview/clouds.md b/docs/docs/overview/clouds.md index b916a2d03..34f48d3f8 100644 --- a/docs/docs/overview/clouds.md +++ b/docs/docs/overview/clouds.md @@ -22,6 +22,14 @@ The following table summarizes the state of features for different infrastructur | **4. Reviewable firmware** | Yes | No | No | No | Depends on kernel/HV | | **5. Confidential measured boot** | No | Yes | No | No | Depends on kernel/HV | +## Amazon Web Services (AWS) + +Amazon EC2 [supports AMD SEV-SNP](https://aws.amazon.com/de/about-aws/whats-new/2023/04/amazon-ec2-amd-sev-snp/). +Regarding (3), AWS provides direct access to attestation statements. +However, regarding (5), attestation is partially based on the [NitroTPM](https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/nitrotpm.html) for [measured boot](../architecture/attestation.md#measured-boot), which is a vTPM managed by the Nitro hypervisor. +Hence, the hypervisor is currently part of Constellation's TCB. +Regarding (4), the [firmware is open source](https://github.com/aws/uefi) and can be reproducibly built. + ## Microsoft Azure With its [CVM offering](https://docs.microsoft.com/en-us/azure/confidential-computing/confidential-vm-overview), Azure provides the best foundations for Constellation. @@ -43,14 +51,6 @@ Regarding (4), the CVMs still include closed-source firmware. [TDX on Google](https://cloud.google.com/blog/products/identity-security/confidential-vms-on-intel-cpus-your-datas-new-intelligent-defense) is in public preview. With it, Constellation would have a similar TCB and attestation flow as with the current SEV-SNP offering. -## Amazon Web Services (AWS) - -Amazon EC2 [supports AMD SEV-SNP](https://aws.amazon.com/de/about-aws/whats-new/2023/04/amazon-ec2-amd-sev-snp/). -Regarding (3), AWS provides direct access to attestation statements. -However, regarding (5), attestation is partially based on the [NitroTPM](https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/nitrotpm.html) for [measured boot](../architecture/attestation.md#measured-boot), which is a vTPM managed by the Nitro hypervisor. -Hence, the hypervisor is currently part of Constellation's TCB. -Regarding (4), the [firmware is open source](https://github.com/aws/uefi) and can be reproducibly built. - ## STACKIT [STACKIT Compute Engine](https://www.stackit.de/en/product/stackit-compute-engine/) supports AMD SEV-ES. A vTPM is used for measured boot, which is a vTPM managed by STACKIT's hypervisor. Hence, the hypervisor is currently part of Constellation's TCB.