[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] Secondary bus reset for VT-d device
So, Xen will call the function "do_secondary_bus_reset" in pci.py automatically after it detects reboot/shutdown/crashes, right? Thanks, Neo 2008/8/28 Neo Jia <neojia@xxxxxxxxx>: > Just want to get some flexibility for testing. > > If Xen do it automatically, is there any log for this? > > Thanks, > Neo > > 2008/8/28 Cui, Dexuan <dexuan.cui@xxxxxxxxx>: >> I think we should not trigger it manually. What's the purpose? >> If you use setpci to do SecondaryBusReset directly, all the devices behind >> the bridge are reset suddenly while xend/Dom0/Xen don't know that... >> We don't check if "the host BARs are enabled" or not. >> >> -- Dexuan >> >> >> -----Original Message----- >> From: Neo Jia [mailto:neojia@xxxxxxxxx] >> Sent: 2008年8月29日 13:16 >> To: Cui, Dexuan >> Cc: xen-devel@xxxxxxxxxxxxxxxxxxx; Han, Weidong >> Subject: Re: [Xen-devel] Secondary bus reset for VT-d device >> >> Can I trigger it manually? What happens if I just use setpci to do a >> "secondary bus reset"? Will Xen be able to check if the host BARs are >> enabled for the device before putting it into the guest? >> >> Thanks, >> Neo >> > > > > -- > I would remember that if researchers were not ambitious > probably today we haven't the technology we are using! > -- I would remember that if researchers were not ambitious probably today we haven't the technology we are using! _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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