> On 1. Aug 2025, at 19:22, Pierrick Bouvier <pierrick.bouv...@linaro.org>
> wrote:
>
> On 8/1/25 5:43 AM, Mohamed Mediouni wrote:
>>> On 1. Aug 2025, at 03:15, Pierrick Bouvier <pierrick.bouv...@linaro.org>
>>> wrote:
>>>
>>> Hi Mohamed,
>>>
>>> On 7/30/25 10:27 PM, Mohamed Mediouni wrote:
>>>> This one took way longer for me to publish than I should have.
>>>> There are a number of lingering bugs in this one including u-boot not
>>>> working.
>>>> Interrupt controller save/restore is entirely missing in this RFC, and
>>>> some other state
>>>> bits are likely still missing too.
>>>> ITS not blocked by default yet, remember to use its=off when testing this
>>>> series.
>>>> You might also want the GICv3 + GICv2m support patch as part of the HVF
>>>> vGIC patch series, which
>>>> is not duplicated here.
>>>> PS: on both this and HVF, interrupt controller initialisation needs to be
>>>> done early so I ended
>>>> up with hardcoded addresses. Wonder if the right way to go might be to
>>>> defer virt and vCPU initialisation
>>>> until late in the process post-gic_realize...
>>>> Other than that, this boots both EDK2 and Linux in SMP, when using
>>>> devicetree or ACPI.
>>>
>>> thanks for posting this, that's an exciting series!
>>>
>>> I applied it on top of your other series
>>> (20250728134114.77545-1-moha...@unpredictable.fr) and solved the conflicts.
>>> However, it would really help if you could push that exact branch
>>> somewhere, so people can easily pull it and try.
>>> I'm fine if you want to duplicate gic patches in this series as well.
>> Hello,
>> My branches are at https://github.com/mediouni-m/qemu
>>
>
> Thanks, it's worth adding it in cover letter for next versions.
>
>> whpx-v1 corresponding to this RFC, but latest rev of the whpx branch has
>> some fixes
>> Have some additional notes and binaries here too:
>> https://github.com/mediouni-m/qemu/releases/tag/whpx-v1.1
>> Thank you,
>> -Mohamed
>>> I tried to direct boot a kernel (6.15 defconfig) and ran into this error
>>> [1]:
>>> $ ./build/qemu-system-aarch64.exe -M virt,its=off -cpu cortex-a76 -m 2G
>>> -nographic -accel whpx -kernel out/Image.gz out/host.ext4
>> Syntax that I use is -M virt,accel=whpx,its=off -m 2048-cpu cortex-a72 -bios
>> share/edk2-aarch64-code.fd.
>> And on some kernel versions, you’ll also need irqchip.gicv3_nolpi=1.
>>> Could you please share your exact command line?
>>> Does it work with direct kernel boot also?
>>>
>>> Kind Regards,
>>> Pierrick
>>>
>>> [1] Error when booting:
>>> [ 1.381525] Internal error: Oops: 0000000096000002 [#1] SMP
>>> [ 1.458060] Modules linked in:
>>> [ 1.461172] CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Not tainted
>>> 6.15.0-00001-g7797e43a2520 #1 PREEMPT
>>> [ 1.470502] Hardware name: linux,dummy-virt (DT)
>>> [ 1.475102] pstate: 204000c5 (nzCv daIF +PAN -UAO -TCO -DIT -SSBS
>>> BTYPE=--)
>>> [ 1.482023] pc : pci_generic_config_read+0x38/0xb8
>>> [ 1.486970] lr : pci_generic_config_read+0x24/0xb8
>> I don’t think I saw this particular one before… which Windows version and
>> hardware are you testing this on?
>>
>
> I see the same error as before.
>
> I tried also binaries from
> https://github.com/mediouni-m/qemu/releases/tag/whpx-v1.1, when directly
> booting kernel, I still see the same pci issue with both binaries and my
> compiled whpx-v1.3.
> When booting edk2 provided, I ran into this other error instead with both
> binaries [1].
>
> I'm running latest Windows 11 (stable channel, fully updated), on a microsoft
> volterra (devkit). It might be an issue specific to this platform.
>
I didn’t test anything on the stable branch for now but only on Canary so far.
Just cursorily tested (EDK2 only) an X Elite device on prod (26100.4652) and
this issue doesn’t appear.
I have 8cx Gen 3 and 8cx Gen 1 (SQ1) devices around, will test on those older
SoCs later and see.
Random idea for testing: what if you put -M highmem=off, does that change
anything?
Thanks,
-Mohamed
> In case you're interested, we can arrange an access to the machine, but I
> understand if it's not your priority now.
>
> [1]
> Windows Hypervisor Platform accelerator is operational
> UEFI firmware (version edk2-stable202408-prebuilt.qemu.org built at 16:28:50
> on Sep 12 2024)
> ArmTrngLib could not be correctly initialized.
> Error: Image at 000BFDB6000 start failed: 00000001
> Error: Image at 000BFD6D000 start failed: Not Found
> MapGcdMmioSpace: failed to add GCD memory space for region
> [0x4010000000+0x10000000)
> ASSERT_EFI_ERROR (Status = Unsupported)
> ASSERT [PciHostBridgeDxe]
> /home/kraxel/projects/qemu/roms/edk2/OvmfPkg/Fdt/FdtPciHostBridgeLib/FdtPciHostBridgeLib.c(326):
> !(((INTN)(RETURN_STATUS)(Status)) < 0)
>
>> (Message was sent from the wrong email alias on mobile, resending)
>> Thank you,
>> -Mohamed
>
> Thanks,
> Pierrick
