Patch intel_iommu driver fails

[Tirigon]

Hey guys,
need your help, I'm really stuck on this. First time I try to create and apply a kernel patch, so don't get mad at me

I follow this guide https://forum.proxmox.com/threads/t...river-to-remove-rmrr-check.36374/#post-207080 to patch the intel_iommu.c driver; reason behind this is I cannot disable RMRR atm, so I need a way to circumvent it.
What I did (short summary):

• Download pve-kernel and ubuntu-kernel
• Make a copy of the driver from ubuntu-kernel
• Edit this copy as I want it to be, copy it over into pve-kernel/patches/kernel
• Run the makefile at pve-kernel

However, when I follow the guide and try to compile the pve-kernel, I get following error message:

root@JvA:/usr/src/pve-kernel# make
gcc --version|grep "6\.3" || false
gcc (Debian 6.3.0-18+deb9u1) 6.3.0 20170516
make: *** No rule to make target 'submodules/ubuntu-artful', needed by 'ubuntu-artful.prepared'.  Stop.

Can you help me please :/ Otherwise PCI passthrough won't work, and that's really annoying...

Thanks in advance,
Tirigon

 

[fabian]

you need to run "make submodule" first.

 

[Tirigon]

Thanks for your help, however

root@JvA:/usr/src/pve-kernel# make submodules
make: Nothing to be done for 'submodules'.

Another make call after that results in the error mentioned before.

 

[fabian]

not sure what you did wrong, but you might be faster starting from scratch again than trying to find out. the following should "just work", and does on my system:

$ cd /foo/bar
$ git clone git://git.proxmox.com/git/pve-kernel.git
$ cd pve-kernel
$ make
gcc --version|grep "6\.3" || false
gcc (Debian 6.3.0-18+deb9u1) 6.3.0 20170516
test -f "submodules/ubuntu-artful/README" || git submodule update --init submodules/ubuntu-artful
Submodule 'submodules/ubuntu-artful' (git://git.proxmox.com/git/mirror_ubuntu-artful-kernel) registered for path 'submodules/ubuntu-artful'
Cloning into '/foo/bar/pve-kernel/submodules/ubuntu-artful'...
...