With your xml configured correctly you may not need the ACS override turned on. I have mine turned off and am passing a 2070 super to my vm.
My IOMMU group shows this in system devices:
IOMMU group 58:
[10de:1e84] 4b:00.0 VGA compatible controller: NVIDIA Corporation TU104 [GeForce RTX 2070 SUPER] (rev a1)
[10de:10f8] 4b:00.1 Audio device: NVIDIA Corporation TU104 HD Audio Controller (rev a1)
[10de:1ad8] 4b:00.2 USB controller: NVIDIA Corporation TU104 USB 3.1 Host Controller (rev a1)
[10de:1ad9] 4b:00.3 Serial bus controller [0c80]: NVIDIA Corporation TU104 USB Type-C UCSI Controller (rev a1)
And I've configured my xml as such:
<hostdev mode='subsystem' type='pci' managed='yes'>
<driver name='vfio'/>
<source>
<address domain='0x0000' bus='0x4b' slot='0x00' function='0x0'/>
</source>
<alias name='hostdev0'/>
<rom file='/mnt/user/domains/vbios/Gigabyte.RTX2070Super.8192.190625_updated.rom'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>
</hostdev>
<hostdev mode='subsystem' type='pci' managed='yes'>
<driver name='vfio'/>
<source>
<address domain='0x0000' bus='0x4b' slot='0x00' function='0x1'/>
</source>
<alias name='hostdev1'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x08' function='0x0'/>
</hostdev>
<hostdev mode='subsystem' type='pci' managed='yes'>
<driver name='vfio'/>
<source>
<address domain='0x0000' bus='0x4b' slot='0x00' function='0x2'/>
</source>
<alias name='hostdev2'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x09' function='0x0'/>
</hostdev>
<hostdev mode='subsystem' type='pci' managed='yes'>
<driver name='vfio'/>
<source>
<address domain='0x0000' bus='0x4b' slot='0x00' function='0x3'/>
</source>
<alias name='hostdev3'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x0a' function='0x0'/>
</hostdev>
You'll need to create these host dev sections for all 4 of the devices on your card, If you notice my slot values don't go in order, 0x06,0x08,0x09,0x0a Something else in my xml was already using 0x07, so just make sure when you populate those values you don't repeat one that already assigned.
Based on your outputs above it looks like these are the 4 device you want to pass through:
IOMMU group 30: [10de:1e84] 2d:00.0 VGA compatible controller: NVIDIA Corporation TU104 [GeForce RTX 2070 SUPER] (rev a1)
IOMMU group 31: [10de:10f8] 2d:00.1 Audio device: NVIDIA Corporation TU104 HD Audio Controller (rev a1)
IOMMU group 32: [10de:1ad8] 2d:00.2 USB controller: NVIDIA Corporation TU104 USB 3.1 Host Controller (rev a1)
IOMMU group 33: [10de:1ad9] 2d:00.3 Serial bus controller [0c80]: NVIDIA Corporation TU104 USB Type-C UCSI Controller (rev a1)