[PATCH pve-vgpu-helper] add 'nova' and 'nova_core' to the modules blacklist

[PATCH pve-vgpu-helper] add 'nova' and 'nova_core' to the modules blacklist

[Dominik Csapak]

in newer kernels (such as 7.0), nova gets automatically loaded for some
nvidia gpus. Since this is incompatible with the vGPU host driver, also
blacklist those on the setup step.

Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
---
i also thought about adding a second parameter for nova, or renaming it
to better fit (e.g. --no-block-intree-drivers) but left it as is, so
that possible script that execute it won't be tripped up.

If wanted i can of course rename it.

 src/pve-nvidia-vgpu-helper | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/src/pve-nvidia-vgpu-helper b/src/pve-nvidia-vgpu-helper
index 1102f3d..4cd6170 100755
--- a/src/pve-nvidia-vgpu-helper
+++ b/src/pve-nvidia-vgpu-helper
@@ -29,7 +29,8 @@ my sub print_usage_and_exit {
 USAGE:   pve-nvidia-vgpu-helper [OPTIONS]
  Commands:
     setup                 Install dependencies and ensure the node is ready for using NVIDIA vGPU.
-      --no-block-nouveau  Do not add modprobe.d config entry to block loading the 'nouveau' module.
+      --no-block-nouveau  Do not add modprobe.d config entry to block loading the 'nouveau' and
+                          'nova' module.
 
  General Options:
     --help                This output.
@@ -64,13 +65,19 @@ my sub apt_install {
 
 ## Commands
 
+my $block_nouveau_nova = <<EOF;
+blacklist nouveau
+blacklist nova
+blacklist nova_core
+EOF
+
 my sub do_setup {
     if ($no_block_nouveau) {
-	print "Skipping creation of modprobe.d config to block 'nouveau' module as requested\n";
+	print "Skipping creation of modprobe.d config to block 'nouveau' and 'nova' modules as requested\n";
     } elsif (! -e "/etc/modprobe.d/block-nouveau.conf") {
-	print "Adding modprobe config to block loading of the 'nouveau' module.\n";
+	print "Adding modprobe config to block loading of the 'nouveau' and 'nova' module.\n";
 	mkdir('/etc/modprobe.d') or $!{EEXIST} or die "failed to create '/etc/modprobe.d' - $!\n";
-	PVE::SysFSTools::file_write("/etc/modprobe.d/block-nouveau.conf", "blacklist nouveau\n")
+	PVE::SysFSTools::file_write("/etc/modprobe.d/block-nouveau.conf", $block_nouveau_nova)
 	  || die "failed to create block-nouveau.conf - $!\n";
 	syslog('info', "Added modprobe config to block loading of the 'nouveau' module.");
 
-- 
2.47.3

applied: [PATCH pve-vgpu-helper] add 'nova' and 'nova_core' to the modules blacklist

[Thomas Lamprecht]

On Tue, 07 Apr 2026 13:59:22 +0200, Dominik Csapak wrote:
> in newer kernels (such as 7.0), nova gets automatically loaded for some
> nvidia gpus. Since this is incompatible with the vGPU host driver, also
> blacklist those on the setup step.
> 
> 

Applied, thanks!

[1/1] add 'nova' and 'nova_core' to the modules blacklist
      commit: 6301212c71c9759bd2ba379c4d4d084b9cd996aa