TWSD-940: The system failed to start the VA instance due to internal error

Review Request #1018 — Created Aug. 18, 2025 and submitted — Latest diff uploaded

Information
ngurunathan
AVX2
AVX_2_7_4
TWSD-940
Reviewers
wli 
Made changes to check whether AVX model is 5800 and check whether pcie_acs_override is present in grub.cfg. If not present, add "pcie_acs_override=downstream" in grub.cfg and reboot.
Tested in customer setup:


Devices are isolated in different iommu_groups:

AVX#readlink /sys/bus/pci/devices/0000:03:00.0/iommu_group

../../../../kernel/iommu_groups/16

AVX#readlink /sys/bus/pci/devices/0000:03:00.1/iommu_group

../../../../kernel/iommu_groups/17


Able to start the VAs:

AN(config)#va start test_apv

test_apv started


AN(config)#va start test_apv_3

test_apv_3 started


AN(config)#va start test_apv_2

test_apv_2 started
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