[edk2-devel] [PATCH 0/2] Update SevSecret API to work for TDX

[Laszlo Ersek]

On 12/17/20 19:43, Laszlo Ersek wrote:

> I tried merging this:
> 
> https://github.com/tianocore/edk2/pull/1235
> 
> but the Ubuntu builds all failed. I've checked two logs:
> 
> https://dev.azure.com/tianocore/edk2-ci/_build/results?buildId=16967&view=logs&j=cf2d8b26-a21c-5c68-abf4-b944c123e462&t=5ffbbe5c-1d3a-55f5-5ef3-8a0ef80d76a1&l=184
> https://dev.azure.com/tianocore/edk2-ci/_build/results?buildId=16968&view=logs&j=47cf355a-6eb4-51a8-46a8-ff4028bfcac0&t=beedef5d-00d0-5a8c-fa35-57d7319988c2&l=182
> 
> They say,
> 
> INFO - /bin/sh: 1: qemu-system-aarch64: not found
> INFO - /bin/sh: 1: qemu-system-x86_64: not found

The "Install qemu" tasks earlier seem to complete:

https://dev.azure.com/tianocore/edk2-ci/_build/results?buildId=16967&view=logs&j=cf2d8b26-a21c-5c68-abf4-b944c123e462&t=a5c654c1-e049-5a30-61a9-da81b8ec031f
https://dev.azure.com/tianocore/edk2-ci/_build/results?buildId=16968&view=logs&j=47cf355a-6eb4-51a8-46a8-ff4028bfcac0&t=9a629c6e-a36d-5733-3aff-19ed2a42cf75

However, the qemu "4.2-3ubuntu6.10" package is a dummy package:

  https://packages.ubuntu.com/focal/qemu

and as shown under the link, it has no dependency on the packages with the actual qemu executables. So the latter do not get pulled in.

(Even the logs make that clear: "Need to get 14.3 kB of archives" -- obviously, a real QEMU won't fit in that, and no other packages get pulled in).

The meta-package that pulls in all system emulators is called "qemu-system":

  https://packages.ubuntu.com/focal/qemu-system

What I don't understand at this point is how the CI scripts could work previously.

... Aha! I do understand it now. Look at one of the last successful PRs:

  https://github.com/tianocore/edk2/pull/1232

The CI logs contain this message:

  "##[warning]Ubuntu-latest pipelines will use Ubuntu-20.04 soon. For more details, see https://github.com/actions/virtual-environments/issues/1816"

So let's check out:

  https://github.com/actions/virtual-environments/issues/1816

Okay... so it looks like I'm the victim of "Ubuntu-latest" switching to 20.04 ("focal") from 18.04 ("bionic"). Compare the "qemu" package in both:

  https://packages.ubuntu.com/bionic/qemu
  https://packages.ubuntu.com/focal/qemu

In the former, qemu depends on qemu-system (which depends further on the actual emulator subpackages), in the latter, qemu doesn't depend on anything.

According to <https://github.com/actions/virtual-environments/issues/1816>, we could change:

.azurepipelines/Ubuntu-GCC5.yml:    vm_image: 'ubuntu-latest'
.azurepipelines/Ubuntu-PatchCheck.yml:  vmImage: 'ubuntu-latest'
ArmVirtPkg/PlatformCI/.azurepipelines/Ubuntu-GCC5.yml:      vm_image: 'ubuntu-latest'
EmulatorPkg/PlatformCI/.azurepipelines/Ubuntu-GCC5.yml:      vm_image: 'ubuntu-latest'
OvmfPkg/PlatformCI/.azurepipelines/Ubuntu-GCC5.yml:      vm_image: 'ubuntu-latest'

to "ubuntu-18.04". But perhaps we should change:

ArmVirtPkg/PlatformCI/.azurepipelines/Ubuntu-GCC5.yml:        - bash: sudo apt-get install qemu
OvmfPkg/PlatformCI/.azurepipelines/Ubuntu-GCC5.yml:        - bash: sudo apt-get install qemu

to "qemu-system", instead.

Laszlo



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