Re: [RFC] Support for Arm CCA VMs on Linux

Suzuki K Poulose
2024-01-10T13:44:51Z

On 10/01/2024 11:41, Suzuki K Poulose wrote:
> Hi Itaru,
>
> On 10/01/2024 05:40, Itaru Kitayama wrote:
>> On Mon, Oct 02, 2023 at 01:43:11PM +0100, Suzuki K Poulose wrote:
>>> Hi,
>>>
>>>

...

>>
>> Suzuki,
>> Any update to the Arm CCA series (v3?) since last October?
>
> Yes, we now have a version that supports the final RMM-v1.0
> specification (RMM-v1.0-EAC5). We also have the UEFI EDK2 firmware
> support for Guests in Realm world.
>
> We are planning to post the changes for review in the v6.8-rc cycle. We
> are trying to integrate the guest_mem support (available in v6.8-rc1) as
> well as reusing some of the arm64 kvm generic interface for configuring
> the Realm parameters (e.g., PMU, SVE_VL etc).
>
> Here is a version that is missing the items mentioned above, based
> on v6.7-rc4, if anyone would like to try.
>
> Also, the easiest way to get the components built and model kick started
> is using the shrinkwrap [6] tool, using the cca-3world configuration.
> The tool pulls all the required software components, builds (including
> the buildroot for rootfs) and can run a model using these built
> components.

Also, please see 'arm/run-realm-tests.sh' in the kvm-unit-tests-cca
repository for sample command lines to invoke kvmtool to create Realm
VMs.

>
>
>
> [0] Linux Repo:
>       Where: git@git.gitlab.arm.com:linux-arm/linux-cca.git
>       KVM Support branch: cca-host/rmm-v1.0-eac5
>       Linux Guest branch: cca-guest/rmm-v1.0-eac5
>       Full stack branch:  cca-full/rmm-v1.0-eac5
>
> [1] kvmtool Repo:
>       Where: git@git.gitlab.arm.com:linux-arm/kvmtool-cca.git
>       Branch: cca/rmm-v1.0-eac5
>
> [2] kvm-unit-tests Repo:
>       Where: git@git.gitlab.arm.com:linux-arm/kvm-unit-tests-cca.git
>       Branch: cca/rmm-v1.0-eac5
>
> [3] UEFI Guest firmware:
>       edk2:     https://git.gitlab.arm.com/linux-arm/edk2-cca.git
>       revision: 2802_arm_cca_rmm-v1.0-eac5
>
>       edk2-platforms:
> https://git.gitlab.arm.com/linux-arm/edk2-platforms-cca.git
>       revision:       2802_arm_cca_rmm-v1.0-eac5
>
>
> [4] RMM Repo:
>       Where: https://git.trustedfirmware.org/TF-RMM/tf-rmm.git
>       tag : tf-rmm-v0.4.0
>
> [5] TF-A repo:
>       Where: https://git.trustedfirmware.org/TF-A/trusted-firmware-a.git
>       Tag: v2.10
>
>
> [6] https://shrinkwrap.docs.arm.com/en/latest/
>     config: cca-3world.yaml
>

Suzuki