On Fri, 29 Mar 2024 20:57:52 +0100, Maximilian Luz <luzmaximilian@xxxxxxxxx> said: > On 3/29/24 8:46 PM, Bartosz Golaszewski wrote: >> On Fri, 29 Mar 2024 at 20:39, Maximilian Luz <luzmaximilian@xxxxxxxxx> wrote: >>> >>> On 3/29/24 8:26 PM, Bartosz Golaszewski wrote: >>>> On Fri, 29 Mar 2024 at 20:22, Maximilian Luz <luzmaximilian@xxxxxxxxx> wrote: >>>>> >>>>> On 3/29/24 8:07 PM, Bartosz Golaszewski wrote: >>>>>> >>>>>> Both with and without SHM bridge? >>>>> >>>>> With CONFIG_QCOM_TZMEM_MODE_GENERIC=y (and the upcoming fix) everything >>>>> works. With CONFIG_QCOM_TZMEM_MODE_SHMBRIDGE=y things unfortunately >>>>> still get stuck at boot (regardless of the fix). I think that's >>>>> happening even before anything efivar related should come up. >>>>> >>>> >>>> This is on X13s? I will get one in 3 weeks. Can you get the bootlog >>>> somehow? Does the laptop have any serial console? >>> >>> Surface Pro X (sc8180x), but it should be similar enough to the X13s in >>> that regard. At least from what people with access to the X13s told me, >>> the qseecom stuff seems to behave the same. >>> >>> Unfortunately I don't have a direct serial console. Best I have is >>> USB-serial, but it's not even getting there. I'll have to try and see if >>> I can get some more info on the screen. >>> >> >> I have access to a sc8180x-primus board, does it make sense to test >> with this one? If so, could you give me instructions on how to do it? > > I guess it's worth a shot. > > From what I can tell, there shouldn't be any patches in my tree that > would conflict with it. So I guess it should just be building it with > CONFIG_QCOM_TZMEM_MODE_SHMBRIDGE=y and booting. > > I am currently testing it on top of a patched v6.8 tree though (but that > should just contain patches to get the Pro X running). You can find the > full tree at > > https://github.com/linux-surface/kernel/tree/spx/v6.8 > > The last commit is the fix I mentioned, so you might want to revert > that, since the shmem issue triggers regardless of that and it prevents > your series from applying cleanly. > > Best regards, > Max > sc8180x-primus' support upstream is quite flaky. The board boots 50% of time. However it's true that with SHM bridge it gets to: mount: mounting efivarfs on /sys/firmware/efi/efivars failed: Operation not supported and stops 100% of the time. Without SHM bridge I cannot boot it either because I suppose I need the patch you sent yesterday. I haven't had the time to rebase it yet, it's quite intrusive to my series. I can confirm that with that patch the board still boots but still 50% of the time. Bart
