On Fri, Sep 12, 2014 at 11:17:35AM +0200, BALATON Zoltan wrote: > On Thu, 11 Sep 2014, Gabriel L. Somlo wrote: > >On Thu, Sep 11, 2014 at 11:34:03PM +0200, Alexander Graf wrote: > >>XNU also populates its device tree based on the DSDT. Maybe there's a > >>subtle difference there? > > > >This was the low hanging fruit, so I checked it first :) Pulled the > >DSDT using the OS X version of "DSDTEditor" (found on insanelymac) > >on both the Chameleon q35 version which had all three UHCIs and from > >the OVMF q35 version which only showed UHCI3. The two DSDTs looked > >absolutely identical (no output from diff)... > > You may also look for differences in USB devices in the ouput of ioreg. > Maybe that shows something. (It's basically what you can see in System > Profiler but easier to compare with diff and may have additional data.)
Other than lots of off-by-a-few key values, the main two hunks of the diff between the Chameleon and OVMF instances of a Q35 OSX guest are simply the missing two "AppleUSBUHCI" arrays: - <key>IORegistryEntryChildren</key> - <array> - <dict> - <key>CFBundleIdentifier</key> - <string>com.apple.driver.AppleUSBUHCI</string> - <key>Card Type</key> - <string>PCI</string> - <key>Companion</key> - <string>yes</string> - <key>Errata</key> - <integer>0</integer> - <key>IOClass</key> - <string>AppleUSBUHCI</string> - <key>IOMatchCategory</key> - <string>IODefaultMatchCategory</string> - <key>IOObjectClass</key> - <string>AppleUSBUHCI</string> - <key>IOObjectRetainCount</key> - <integer>11</integer> - <key>IOPCIClassMatch</key> - <string>0x0C030000</string> - <key>IOPowerManagement</key> - <dict> - <key>ChildrenPowerState</key> - <integer>3</integer> - <key>CurrentPowerState</key> - <integer>3</integer> - <key>DevicePowerState</key> - <integer>3</integer> - <key>DriverPowerState</key> - <integer>3</integer> - <key>MaxPowerState</key> - <integer>4</integer> - </dict> - <key>IOProbeScore</key> - <integer>0</integer> - <key>IOProviderClass</key> - <string>IOPCIDevice</string> - <key>IORegistryEntryChildren</key> - <array> - <dict> - <key>AAPL,current-extra-in-sleep</key> - <integer>500</integer> ... etc. Together, the ioreg xml output files are 50K lines, so I figured I'd try to spare everyone the pain (but I do have them and can attach them in private mail in case you think they're worth a second look). Thanks, --Gabriel
