Hello, > The documentation used to say: > > For example, > > pci=config_acs=10x > > would configure all devices that support ACS to enable P2P Request > > Redirect, disable Translation Blocking, and leave Source Validation > > unchanged from whatever power-up or firmware set it to. > > However, a flag specification always needs to be suffixed with "@" and a > PCI device string, which is missing in this example. It needs to be > suffixed with "@pci:0:0" to configure all devices that support ACS in > particular. Applied to config-acs for v6.14, thank you! Krzysztof