On Wed, Jan 08, 2014 at 05:11:48PM +0100, Paolo Bonzini wrote: > Il 08/01/2014 16:07, Yan Vugenfirer ha scritto: > >>> > >>> +%QEMU-PCI_SERIAL_1_PORT%=ComPort_inst1, > >>> PCI\VEN_1B36&DEV_0002&SUBSYS_11001AF4&REV_01 > >>> +%QEMU-PCI_SERIAL_2_PORT%=ComPort_inst2, > >>> PCI\VEN_1B36&DEV_0003&SUBSYS_11001AF4&REV_01 > >>> +%QEMU-PCI_SERIAL_4_PORT%=ComPort_inst4, > >>> PCI\VEN_1B36&DEV_0004&SUBSYS_11001AF4&REV_01 > >> > >> I think checking the subsystem is not necessary (and I think downstreams > >> could legitimately change it). Can you check CC and REV but not SUBSYS? > > > > PNP ID can be reduced to vendor and device ID only, for example: > > PCI\VEN_1B36&DEV_0002 . But in this case we cannot check revision. > > Gerd, Michael, what do you think is better? Not check revision, or > enforcing subsystem? > > Paolo
AFAIK the 0.9.X spec explicitly says you should look at subsystem. -- MST
