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e6043e92c2
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Dr. David Alan Gilbert e6043e92c2 xhci PCIe endpoint migration compatibility fix 
Add back the PCIe config capabilities on XHCI cards in non-PCIe slots,
but only for machine types before 2.1.

This fixes a migration incompatibility in the XHCI PCI devices
caused by:
   058fdcf52c - xhci: add endpoint cap on express bus only

Note that in fixing it for compatibility with older QEMUs, it breaks
compatibility with existing QEMU 2.1's on older machine types.

The status before this patch was (if it used an XHCI adapter):
   machine type | source qemu
     any           pre-2.1     - FAIL
     any           2.1...      - PASS

With this patch:
   machine type | source qemu
     any           pre-2.1    - PASS
     pre-2.1       2.1...     - FAIL
     2.1           2.1...     - PASS

A test to trigger it is to add '-device nec-usb-xhci,id=xhci,addr=0x12'
to the command line.

Cc: qemu-stable@nongnu.org
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2014-09-10 07:20:53 +02:00
..
block block: Add AIO context notifiers 2014-08-29 10:48:45 +01:00
disas disas: Implement disassembly output for A64 2014-02-08 14:50:48 +00:00
exec pci, pc fixes, features 2014-09-02 16:07:31 +01:00
fpu fpu: softfloat: drop INLINE macro 2014-06-23 11:00:12 -04:00
hw xhci PCIe endpoint migration compatibility fix 2014-09-10 07:20:53 +02:00
libdecnumber Fix new typos in comments (found by codespell) 2014-07-18 17:45:36 +04:00
migration vmstate: Add preallocation for migrating arrays (VMS_ALLOC flag) 2014-06-27 13:48:27 +02:00
monitor monitor: fix use after free 2014-08-18 14:39:10 -04:00
net net: move queue number into NICPeers 2014-06-27 11:19:31 +02:00
qapi qapi: add event helper functions 2014-06-23 11:01:25 -04:00
qemu Block patches 2014-08-15 14:49:50 +01:00
qom qom: add a generic mechanism to resolve paths 2014-07-01 10:17:48 +02:00
sysemu target-tricore: Add target stubs and qom-cpu 2014-09-01 14:49:20 +01:00
ui console: move chardev declarations to sysemu/char.h 2014-06-23 10:56:20 +01:00
config.h
elf.h target-tricore: Add target stubs and qom-cpu 2014-09-01 14:49:20 +01:00
glib-compat.h glib-compat.h: add new thread API emulation on top of pre-2.31 API 2014-06-10 07:44:01 +02:00
qemu-common.h monitor: Add drift info to 'info jit' 2014-08-07 15:09:48 +02:00
qemu-io.h qemu-io: Fix warnings from static code analysis 2014-03-13 14:42:24 +01:00
trace-tcg.h trace: [tcg] Generate TCG tracing routines 2014-08-12 14:26:12 +01:00
trace.h trace: [tcg] Include event definitions in "trace.h" 2014-08-12 14:26:12 +01:00