[Qemu-devel] [Bug 1463463] [NEW] PCI devices on PCI to PCI bridges stopped being accessable from Xen with QEMU 2.3.0

[Don Slutz]

Public bug reported:

The change set:

commit 3996e85c1822e05c50250f8d2d1e57b6bea1229d
Author: Paul Durrant <address@hidden>
Date:   Tue Jan 20 11:06:19 2015 +0000

    Xen: Use the ioreq-server API when available
...

Added calls to xen_map_pcidev()  when available.  However these call are
only done at startup, not when the guest configures the PCI to PCI
bridge.  So Xen 4.5.0 (which has these) using a QEMU 2.3.0 or later can
no longer access PCI devices that are not on a root bridge.

** Affects: qemu
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1463463

Title:
  PCI devices on PCI to PCI bridges stopped being accessable from Xen
  with QEMU 2.3.0

Status in QEMU:
  New

Bug description:
  The change set:

  commit 3996e85c1822e05c50250f8d2d1e57b6bea1229d
  Author: Paul Durrant <address@hidden>
  Date:   Tue Jan 20 11:06:19 2015 +0000

      Xen: Use the ioreq-server API when available
  ...

  Added calls to xen_map_pcidev()  when available.  However these call
  are only done at startup, not when the guest configures the PCI to PCI
  bridge.  So Xen 4.5.0 (which has these) using a QEMU 2.3.0 or later
  can no longer access PCI devices that are not on a root bridge.

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