[pve-devel] [PATCH guest-common v7 1/2] mapping: pci: check the mdev configuration on the device too

[Thomas Lamprecht]

Am 11.03.25 um 14:20 schrieb Dominik Csapak:
> but that lives int he 'global' part of the mapping config, not in a
> specific mapping. To check that, add it to the $configured_props from
> there.
> 
> this requires all call sites to be adapted otherwise the check will
> always fail for devices that are capable of mediated devices

But that's not true, or? As the check only happens if the $cluster_mapping_cfg
param is passed, which call-sites need to do first?

>  # checks if the given config is valid for the current node
>  sub assert_valid {
> -    my ($name, $mapping) = @_;
> +    my ($name, $mapping, $cluster_mapping_cfg) = @_;

                            ^-  new param here

>  
>      my @paths = split(';', $mapping->{path} // '');
>  
> @@ -161,6 +161,12 @@ sub assert_valid {
>  
>  	my $configured_props = { $mapping->%{qw(id iommugroup subsystem-id)} };
>  
> +	# check mdev from globabl mapping config, if that is given
> +	if (defined($cluster_mapping_cfg)) {

guarded witch check for defindness here

> +	    $expected_props->{mdev} = $info->{mdev} ? 1 : 0;
> +	    $configured_props->{mdev} = $cluster_mapping_cfg->{mdev} ? 1 : 0;
> +	}
> +
>  	for my $prop (sort keys $expected_props->%*) {
>  	    next if $prop eq 'iommugroup' && $idx > 0; # check iommu only on the first device
>