[Qemu-devel] [Bug 1463463] Re: PCI devices on PCI to PCI bridges stopped being accessable from Xen with QEMU 2.3.0
[Expired for QEMU because there has been no activity for 60 days.] ** Changed in: qemu Status: Incomplete => Expired -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. 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: Expired Bug description: The change set: commit 3996e85c1822e05c50250f8d2d1e57b6bea1229d Author: Paul Durrant Date: Tue Jan 20 11:06:19 2015 + 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. To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1463463/+subscriptions
[Qemu-devel] [Bug 1463463] Re: PCI devices on PCI to PCI bridges stopped being accessable from Xen with QEMU 2.3.0
Looking through old bug tickets... can you still reproduce this issue with the latest version of QEMU? Or could we close this ticket nowadays? ** Changed in: qemu Status: New => Incomplete -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. 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: Incomplete Bug description: The change set: commit 3996e85c1822e05c50250f8d2d1e57b6bea1229d Author: Paul Durrant Date: Tue Jan 20 11:06:19 2015 + 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. To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1463463/+subscriptions
[Qemu-devel] [Bug 1463463] Re: PCI devices on PCI to PCI bridges stopped being accessable from Xen with QEMU 2.3.0
** Attachment added: "This is the Xen config file used" https://bugs.launchpad.net/qemu/+bug/1463463/+attachment/4412144/+files/C63-min-tools.bridge3.xfg -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. 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 Date: Tue Jan 20 11:06:19 2015 + 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. To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1463463/+subscriptions
[Qemu-devel] [Bug 1463463] Re: PCI devices on PCI to PCI bridges stopped being accessable from Xen with QEMU 2.3.0
Since Xen's tool stack does not know about PCI to PCI bridges, a config that shows this issue also requires the correct Linux kernel argument "pci=assign-busses" is used. -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. 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 Date: Tue Jan 20 11:06:19 2015 + 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. To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1463463/+subscriptions