Re: [PULL 15/32] tests/functional/aarch64: add tests for FEAT_RME

[Pierrick Bouvier]

Hi Thomas,

On 1/24/25 05:29, Thomas Huth wrote:
> On 10/01/2025 14.17, Alex Bennée wrote:
> > From: Pierrick Bouvier <pierrick.bouvier@linaro.org>
> >
> > This boot an OP-TEE environment, and launch a nested guest VM inside it
> > using the Realms feature. We do it for virt and sbsa-ref platforms.
>
>    Hi,
>
> FWIW, I just saw this test_aarch64_rme_virt test failing once. Looking at
> the console.log, it seems like the guest crashed somewhere at the end of the
> firmware or very early in the kernel:
>
> EFI stub: Booting Linux Kernel...
> 2025-01-24 13:25:28,226:
> 2025-01-24 13:25:28,226:
> 2025-01-24 13:25:28,227: Synchronous Exception at 0x00000000BF526498
> 2025-01-24 13:25:28,227:
> 2025-01-24 13:25:28,227:
> 2025-01-24 13:25:28,228: Synchronous Exception at 0x00000000BF526498
>
> I wasn't able to reproduce it afterwards anymore, but in case somebody runs
> into this later again and wonders if it is a later regression: It happened
> for me with commit cf86770c7aa31ebd.
>
>    Thomas

I met this kind of error before (not on rme), and if I remember well, 
it's coming from EDK2.

We might have a race condition here.