** Tags removed: verification-needed-noble-linux-gcp 
verification-needed-plucky-linux-gcp
** Tags added: verification-done-noble-linux-gcp 
verification-done-plucky-linux-gcp

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You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/2111859

Title:
  linux-gcp: NVIDIA Grace platform support

Status in linux-gcp package in Ubuntu:
  Invalid
Status in linux-gcp source package in Noble:
  Fix Committed
Status in linux-gcp source package in Plucky:
  Fix Committed

Bug description:
  SRU Justification

  [Impact]

  Google requested a Grace-enabled 6.8 kernel for GCP. This patchset targets    
                                                                                
                                            
  noble:linux-gcp. The derivative kernel jammy:linux-gcp-6.8 will inherit       
                                                                                
                                            
  these patches and will be the primary deployment kernel.

  [Fix]

  Add select NVIDIA Grace platform patches, similar to what has been done       
                                                                                
                                            
  for kernels like noble:linux-azure-nvidia. NVIDIA provides a                  
                                                                                
                                            
  document [1] listing all of the required and recommended kernel patches for   
                                                                                
                                            
  Grace enablement. Version 11 April 25, 2025 of the document was used          
                                                                                
                                            
  when preparing this patchset as was version                                   
                                                                                
                                            
  Ubuntu-azure-nvidia-6.8.0-1016.17 of the noble:linux-azure-nvidia kernel.     
                                                                                
                                            
                                                                                
                                                                                
                                            
  [1] https://docs.nvidia.com/grace-patch-config-guide.pdf

  [Test Plan]

  Boot testing on arm64/64k pages was performed in house. Further testing       
                                                                                
                                            
  will be done by Google in their Grace-enabled environment once available.

  [Regression potential]

  The regression potential is considered moderate due to the number of          
                                                                                
                                            
  patches involved and the breadth of the changes. The changes affect           
                                                                                
                                            
  pte, perf, PCI, cpufreq, ACPI, mmu, coresight, and other kernel               
                                                                                
                                            
  subsystems.

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