That is a resounding yes! Unsurprisingly for AMD, PCI passthrough is 
available.

Is there anyone with a Legion 7 16ACHg6 who's up to setting up pci 
passthrough for their sound card and compiling JCS's Qemu all to run a 
Windows 10 VM? Someone can either try to do that for themselves or wait 
for me and hope there's sufficient availability.

On 6/25/2021 7:45 PM, <email address hidden> wrote:
> https://bugzilla.kernel.org/show_bug.cgi?id=208555
>
> --- Comment #314 from Pablitar (<email address hidden>) ---
> Here it is:
> [    0.293604] iommu: Default domain type: Translated
> [    0.487357] pci 0000:00:00.2: AMD-Vi: IOMMU performance counters supported
> [    0.487484] pci 0000:00:01.0: Adding to iommu group 0
> [    0.487493] pci 0000:00:01.1: Adding to iommu group 1
> [    0.487500] pci 0000:00:01.2: Adding to iommu group 2
> [    0.487511] pci 0000:00:02.0: Adding to iommu group 3
> [    0.487518] pci 0000:00:02.1: Adding to iommu group 4
> [    0.487526] pci 0000:00:02.2: Adding to iommu group 5
> [    0.487538] pci 0000:00:08.0: Adding to iommu group 6
> [    0.487544] pci 0000:00:08.1: Adding to iommu group 6
> [    0.487550] pci 0000:00:08.2: Adding to iommu group 6
> [    0.487560] pci 0000:00:14.0: Adding to iommu group 7
> [    0.487566] pci 0000:00:14.3: Adding to iommu group 7
> [    0.487587] pci 0000:00:18.0: Adding to iommu group 8
> [    0.487593] pci 0000:00:18.1: Adding to iommu group 8
> [    0.487599] pci 0000:00:18.2: Adding to iommu group 8
> [    0.487606] pci 0000:00:18.3: Adding to iommu group 8
> [    0.487612] pci 0000:00:18.4: Adding to iommu group 8
> [    0.487618] pci 0000:00:18.5: Adding to iommu group 8
> [    0.487624] pci 0000:00:18.6: Adding to iommu group 8
> [    0.487629] pci 0000:00:18.7: Adding to iommu group 8
> [    0.487640] pci 0000:01:00.0: Adding to iommu group 9
> [    0.487648] pci 0000:01:00.1: Adding to iommu group 9
> [    0.487656] pci 0000:02:00.0: Adding to iommu group 10
> [    0.487664] pci 0000:03:00.0: Adding to iommu group 11
> [    0.487671] pci 0000:04:00.0: Adding to iommu group 12
> [    0.487685] pci 0000:05:00.0: Adding to iommu group 6
> [    0.487688] pci 0000:05:00.2: Adding to iommu group 6
> [    0.487693] pci 0000:05:00.3: Adding to iommu group 6
> [    0.487696] pci 0000:05:00.4: Adding to iommu group 6
> [    0.487700] pci 0000:05:00.6: Adding to iommu group 6
> [    0.487703] pci 0000:06:00.0: Adding to iommu group 6
> [    0.487707] pci 0000:06:00.1: Adding to iommu group 6
> [    0.489073] pci 0000:00:00.2: AMD-Vi: Found IOMMU cap 0x40
> [    0.490935] perf/amd_iommu: Detected AMD IOMMU #0 (2 banks, 4
> counters/bank).
> [    0.535396] AMD-Vi: AMD IOMMUv2 driver by Joerg Roedel <email address hidden>
>
> Seems it is supported?
>
> (In reply to Cameron Berkenpas from comment #312)
>> Maybe try:
>>
>> dmesg | grep -i iommu
>>
>> On 6/25/2021 6:24 PM, Cameron Berkenpas wrote:
>>> You're welcome. I understand the frustration!
>>>
>>> Can you or anyone else with a Legion 7 16ACHg6 check if your CPU has
>>> IOMMU support? I'm not able to find an answer to this one way or
>>> another. If so, likely the same trick can be used to find the codec
>>> initialization verb sequence.
>>>
>>>
>>> On 6/25/21 5:06 PM, <email address hidden> wrote:
>>>> https://bugzilla.kernel.org/show_bug.cgi?id=208555
>>>>
>>>> --- Comment #307 from Pablitar (<email address hidden>) ---
>>>> And thank you so much for what you are doing Cameron!
>>>>
>>>> (In reply to Cameron Berkenpas from comment #305)
>>>>> You're not the first person to report that these fixes don't work for
>>>>> the 2021 Legion.
>>>>>
>>>>> Can you post your alsa-info?
>>>>>
>>>>> I'd like to order one as soon as they become available here in the USA,
>>>>> but I'm unsure what the availability will be. If I managed to snag one,
>>>>> I'll work on getting sound working there too.
>>>>>
>>>>> On 6/25/21 4:52 PM, <email address hidden> wrote:
>>>>>> https://bugzilla.kernel.org/show_bug.cgi?id=208555
>>>>>>
>>>>>> Pablitar (<email address hidden>) changed:
>>>>>>
>>>>>>               What    |Removed                     |Added
>>>>>>
>>>>>
>> ----------------------------------------------------------------------------
>>>>>> CC|                            |<email address hidden>
>>>>>>
>>>>>> --- Comment #304 from Pablitar (<email address hidden>) ---
>>>>>> Hey!
>>>>>>
>>>>>> I've tested some of these fixes on my Lenovo 16ACHg6 and had no luck.
>>>>>>
>>>>>> What I've tested:
>>>>>> - Using the applyverbs.py with verbs-working.txt
>>>>>> - Applying the legion-alc287-0.0.4.patch as per instructions
>>>>>> - Applying the legion-alc287-0.0.5.patch as per instructions
>>>>>>
>>>>>> Something that may be important is that this new model is running
>>>>>> an AMD
>>>>>> processor and the sound controller appears as:
>>>>>>
>>>>>> 'Audio device: Advanced Micro Devices, Inc. [AMD] Family 17h (Models
>>>>> 10h-1fh)
>>>>>> HD Audio Controller'
>>>>>>
>>>>>> On Alsa Mixer, it says the "Chip" is ALC287 but the "Card" is HD-Audio
>>>>>> Generic.
>>>>>>
>>>>>> Is that important? I'm bringing this up because the instructions say:
>>>>>>
>>>>>> # Patch file to enable output on speakers.
>>>>>> options snd-hda-intel patch=legion-alc287-0.0.4.patch
>>>>>>
>>>>>> And the intel part there may be something to change?
>>>>>>
>>>>>> But honestly I'm clueless so this may be waaay off.
>>>>>>
>>>>>> Thanks in advance!
>>>>>>