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[Xen-bugs] [Bug 1319] New: UHCI hotplug can not work on Montevina platfo

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Subject: [Xen-bugs] [Bug 1319] New: UHCI hotplug can not work on Montevina platform
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Date: Sat, 9 Aug 2008 07:27:05 -0700
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           Summary: UHCI hotplug can not work on Montevina platform
           Product: Xen
           Version: unstable
          Platform: Other
        OS/Version: Linux
            Status: NEW
          Severity: major
          Priority: P1
         Component: Unspecified
        AssignedTo: xen-bugs@xxxxxxxxxxxxxxxxxxx
        ReportedBy: haicheng.li@xxxxxxxxx

Service OS (ia32/ia32e/IA64): ia32e/ia32
Guest OS (ia32/ia32e/IA64): ia32
Change Set: 18184 (xen3.3.0-rc2)
Hardware: Montevina
remote-ioemu: yes

Bug detailed description:
On Montevina platform, when we xm pci-attach a UHCI BDF 00:1a.0 to a Linux
guest, it can not work. And the qemu window will output "host controller
halted, very bad!".
Last testing on Montevina with Cset#17786 can pass.

Reproduce steps:
1. Hide (00:1a.0) in grub, and iommu=1 msi=1
2. create a Linux guest with pci=nomsi in its grub (disable msi in guest)
3. On dom0, xm pci-attach <guest_id> 00:1a.0
4. keyboard can not work and qemu will print out the error information.

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