Re: [Qemu-devel] TCG baremetal tests repo

[Peter Maydell]

On 24 June 2015 at 17:39, Alex Bennée <address@hidden> wrote:
>
> Alexander Spyridakis <address@hidden> writes:
>> You can find the latest tcg atomic test payload in the following repo:
>>> git clone https://git.virtualopensystems.com/dev/tcg_baremetal_tests.git
>>
>> You also need an arm baremetal cross-compiler like arm-none-gnueabi- (arm)
>> and the usual aarch64-linux-gnu- (arm64). Due to a PSCI bug in the current
>> multithreading tcg repo, the atomic test was modified to work also on the
>> vexpress machine model.
>
> I sent a patch to fix the PSCI hang case to wake up the sleeping CPU. I
> couldn't figure out how the vexpress code was waking it's CPUs. Do they
> just start powered on?

Yes -- our vexpress model is "like hardware", so all CPUs leap into
the boot firmware at once, and the firmware deals with putting the
secondaries into a pen to be released in a controlled manner later.
[assuming you're not using -kernel; if you are then boot.c has the
secondary pen code]

-- PMM