[PATCH 0/13][jammy/linux] Backport vmci patches to Jammy kernel

[Tim Gardner]

On 6/15/22 01:21, Stefan Bader wrote:
> On 14.06.22 21:06, Tim Gardner wrote:
>> BugLink: https://bugs.launchpad.net/bugs/1978145
>>
>> SRU Justification
>>
>> [Impact]
>>
>> The request is to bring vmci to TOT and back port the following 
>> patches into
>> Ubuntu kernels.
> 
> This sounds like adding a cloud/customer feature into a distro kernel, 
> worse into a LTS one. IMO there should be more explanation why WE want 
> to do that (benefit for distro users) and not just one sentence of which 
> the first part sounds like gibberish to me.
> 
> -Stefan
> 

It seemed safe enough given that these clean cherry-pick changes are 
isolated to a single VMWARE driver and are being proposed by a VMWARE 
employee. I'll inquire in the LP report as to the overall purpose for 
the patches.

rtg

>>
>> 1. fac608138c6136126faadafa5554cc0bbabf3c44 ("VMCI: dma dg: whitespace 
>> formatting change for vmci register defines")
>> 2. e283a0e8b7ea83915e988ed059384af166b444c0 ("VMCI: dma dg: add MMIO 
>> access to registers")
>> 3. eed2298d936087a1c85e0fa6f7170028e4f4fded ("VMCI: dma dg: detect DMA 
>> datagram capability")
>> 4. 8cb520bea1470ca205980fbf030ed1f472f4af2f ("VMCI: dma dg: set OS 
>> page size")
>> 5. cc68f2177fcbfe2dbe5e9514789b96ba5995ec1e ("VMCI: dma dg: register 
>> dummy IRQ handlers for DMA datagrams")
>> 6. 5ee109828e73bbe4213c373988608d8f33e03d78 ("VMCI: dma dg: allocate 
>> send and receive buffers for DMA datagrams")
>> 7. 22aa5c7f323022477b70e044eb00e6bfea9498e8 ("VMCI: dma dg: add 
>> support for DMA datagrams sends")
>> 8. 463713eb6164b6577f8e91447c7745628215531b ("VMCI: dma dg: add 
>> support for DMA datagrams receive")
>> 9. 77e861619baea5a7c934e47fda74b03c0b072aec ("VMCI: Fix some error 
>> handling paths in vmci_guest_probe_device()")
>> 10. c8e9b30ccae605bf1dbeaf03971f9b83f70b928d ("VMCI: Release 
>> notification_bitmap in error path")
>> 11. 5df0e734b8c39598effe0f17e5bd8ff7748a0693 ("VMCI: Check 
>> exclusive_vectors when freeing interrupt 1")
>> 12. 1f7142915d304804a9bd952245fce92786b1b62f ("VMCI: Add support for 
>> ARM64")
>> 13. ba03a9bbd17b149c373c0ea44017f35fc2cd0f28 ("VMCI: Release resource 
>> if the work is already queued")
>>
>> [Test Plan]
>>
>> User tested
>> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1978145/comments/4
>>
>> [Where things could go wrong]
>>
>> The VMWARE VMCI driver could fail in new and interesting ways.
>>
>>
>>
> 


-- 
-----------
Tim Gardner
Canonical, Inc