On Thu, Feb 25, 2010 at 06:37:05PM +0000, Haiyang Zhang wrote: > > From: Greg KH [mailto:greg@xxxxxxxxx] > > Sent: Thursday, February 25, 2010 12:36 PM > > What does the following command output in a HV virtual system: > > grep . /sys/bus/acpi/devices/*/modalias > > /sys/bus/acpi/devices/VMBus:00/modalias:acpi:VMBus: > > > How about DMI data? Does the Host export any info there? Is there > > anything in the /sys/class/dmi/id/ directory? If so, can you send the > > output of: > > cat /sys/class/dmi/id/modalias > > dmi:bvnAmericanMegatrendsInc.:bvr090004:bd03/19/2009:svnMicrosoftCorporation:pnVirtualMachine:pvr7.0:rvnMicrosoftCorporation:rnVirtualMachine:rvr7.0:cvnMicrosoftCorporation:ct3:cvr7.0: Nice, can we rely on this to be static? Will the following structure always match properly? static struct dmi_system_id __initdata microsoft_hyperv_table[] = { { .ident = "hyperv", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "MicrosoftCorporation"), DMI_MATCH(DMI_PRODUCT_NAME, "VirtualMachine"), DMI_MATCH(DMI_BOARD_NAME, "VirtualMachine"), }, }, }; That would be good to match with, but I don't know if all distro tools can properly handle DMI module stuff just yet. > > And you are sure no PCI devices are present to key off of that are > > never going to show up in a "physical" machine? > > There is also a pci device as you said: > 00:08.0 VGA compatible controller: Microsoft Corporation Device 5353 (prog-if 00 [VGA controller]) > Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV+ VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- > Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- > Latency: 0 > Interrupt: pin A routed to IRQ 11 > Region 0: Memory at f8000000 (32-bit, non-prefetchable) [size=64M] Ah, nice. Can we rely on this always being present? If so, what is the vendor and product id of this device? Is it: Vendor id 0x1414 or: Vendor id 0x045e Microsoft has both assigned to them, and probably others. Is the device id 0x5353? You can see this by doing the following: lspci -n | grep 08\\.0 what is the output of that? thanks, greg k-h _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/devel
