[itlwm][Enhancement]Make itlwm compatible with AppleVTD

[Halo-Michael]

Now itlwm is incompatible with AppleVTD, which makes it it conflict with many devices that rely on DriverKit drivers. This may not be easy to implement, but please at least keep it as a TODO item.

[jzrodriguez98]

Now itlwm is incompatible with AppleVTD, which makes it it conflict with many devices that rely on DriverKit drivers. This may not be easy to implement, but please at least keep it as a TODO item.

In my case, itlwm works in Tahoe with VT-D enabled in BIOS but checking DisableIOMapper in kernel quirks of config file and patching DMAR table to delete reserved regions and dropping DMAR in ACPI-delete section of config file as explained here https://dortania.github.io/Getting-Started-With-ACPI/Universal/dmar-methods/manual.html#preparation

[laszlo-t]

Now itlwm is incompatible with AppleVTD, which makes it it conflict with many devices that rely on DriverKit drivers. This may not be easy to implement, but please at least keep it as a TODO item.

In my case, itlwm works in Tahoe with VT-D enabled in BIOS but checking DisableIOMapper in kernel quirks of config file and patching DMAR table to delete reserved regions and dropping DMAR in ACPI-delete section of config file as explained here https://dortania.github.io/Getting-Started-With-ACPI/Universal/dmar-methods/manual.html#preparation

Setting DisableIoMapper to true disables AppleVTD.
I also edited the DMAR table but it did not solve my problem: #1045 (comment)

[jzrodriguez98]

Yep, that's why I ordered a FullMac Broadcom wifi card to experiment with the new kext that was recently released.

[f-1-0]

vt-d and itlwm (+heliport) does work for me with no issues for many months now on my Surface Pro 7 :

[jzrodriguez98]

vt-d and itlwm (+heliport) does work for me with no issues for many months now on my Surface Pro 7 :

In Tahoe?

[f-1-0]

no, I still run Sequoia. OP wrote it is incompatible regardless of OS version, and I pointed out that for me it is compatible. I did drop the DMAR reserved memory region fwiw.

[jzrodriguez98]

no, I still run Sequoia. OP wrote it is incompatible regardless of OS version, and I pointed out that for me it is compatible. I did drop the DMAR reserved memory region fwiw.

Correct. itlwm can be used in Sequia with VT-D enabled. I was using it like that.

[Halo-Michael]

I'm using macOS Tahoe, and if I enable AppleVTD, I'll get same issue with #1045.

[Halo-Michael]

I'm not used itlwm in Sequoia, because airportitlwm just work fine in Sequoia.

[jzrodriguez98]

I'm not used itlwm in Sequoia, because airportitlwm just work fine in Sequoia.

How were you able to configure airportitlwm in Sequoia? Did you enable it without root patching and partially disabling SIP?

[Halo-Michael]

I'm not used itlwm in Sequoia, because airportitlwm just work fine in Sequoia.

How were you able to configure airportitlwm in Sequoia? Did you enable it without root patching and partially disabling SIP?

Nope, root patch is inneed.

[moishiteru]

I'm using macOS Tahoe, and if I enable AppleVTD, I'll get same issue with #1045.

how did you get itlwm work on Tahoe? I can not load the kext, for BT is ok because kext was updated to version 2.5.0 but no luck to get working wifi... please help

[jzrodriguez98]

I'm using macOS Tahoe, and if I enable AppleVTD, I'll get same issue with #1045.

how did you get itlwm work on Tahoe? I can not load the kext, for BT is ok because kext was updated to version 2.5.0 but no luck to get working wifi... please help

Keep in mind that if you enable VT-D in Bios but define DisableIOMapper as True in the config.plist file, you are disabling VT-D, neutralizing what you enabled in BIOS.
If you need VT-D enabled, you can try setting up as True the quirk called "DisableIoMapperMapping" along with dropping the DMAR table and replacing it with a patched DMAR table where you delete any Reserved Regions. This may vary from one build to another; for example in my build the DisableIoMapperMapping does not have any effect and I only drop the original DMAR and load the patched one and my Ethernet's I-225V NIC works well. I need to test it under stressed circumstances as previously I was using AppleIGC kext with VT-D disabled (to get faster speeds without any drops) alongside itlwm and sometimes itlwm was picking up when wifi was enabled.

[Halo-Michael]

I'm using macOS Tahoe, and if I enable AppleVTD, I'll get same issue with #1045.

how did you get itlwm work on Tahoe? I can not load the kext, for BT is ok because kext was updated to version 2.5.0 but no luck to get working wifi... please help

Just disable AppleVTD