PCI config read fails should return all 1 bits.
All unused registers in an existing PCI device should return 0.
Because that's what my Power Mac 8600 returns when I run my Open Firmware lspci command.
Any bus/device/function that doesn't exist returns FF and won't be listed by lspci.
Any registers that are unused will show as 00 in the lspci output.
Make grackle log bus:device.function @register.size in all cases.
PCI config read fails should return all 1 bits. All unused registers in an existing PCI device should return 0.
Because that's what my Power Mac 8600 returns when I run my Open Firmware lspci command. Any bus/device/function that doesn't exist returns FF and won't be listed by lspci. Any registers that are unused will show as 00 in the lspci output.
Make grackle log bus:device.function @register.size in all cases.