The awk patterns in hw_gen_pci_json() targeted a hypothetical output format
that never matched QEMU's actual HMP 'info pci' response:
- /^Bus / anchored to line start, but QEMU outputs ' Bus ' (2 leading spaces)
- /vendor_id = / expected 'vendor_id = 0x8086', but QEMU prints 'PCI device 8086:2922'
- /device_id = / expected separate line, but vendor:device are on the same line
- /class = / expected 'class = 0x010601', but QEMU prints 'SATA controller:' or 'Class 0106:'
- IRQ field expected 'IRQ 0.' but QEMU prints 'IRQ 5, pin A'
Result: pci_summary.json was always invalid JSON with orphaned key-value pairs.
Fix verified against QEMU source (pci-hmp-cmds.c:31-51) and tested with
realistic 4-device output: all devices correctly parsed with bus/dev/fn,
vendor_id, device_id, and IRQ fields.
Found by: 5-agent parallel review (QA execution agent)
vasilito
acc2d93307