Michael S. Tsirkin 6b4495401b pcie: fix link active status bit migration ... We changed link status register in pci express endpoint capability over time. Specifically, commit b2101eae63 ("pcie: Set the "link active" in the link status register") set data link layer link active bit in this register without adding compatibility to old machine types. When migrating from qemu 2.3 and older this affects xhci devices which under machine type 2.0 and older have a pci express endpoint capability even if they are on a pci bus. Add compatibility flags to make this bit value match what it was under 2.3. Additionally, to avoid breaking migration from qemu 2.3 and up, suppress checking link status during migration: this seems sane since hardware can change link status at any time. https://bugzilla.redhat.com/show_bug.cgi?id=1352860 Reported-by: Gerd Hoffmann <kraxel@redhat.com> Fixes: b2101eae63 ("pcie: Set the "link active" in the link status register") Cc: qemu-stable@nongnu.org Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>		2016-07-29 00:07:08 +03:00
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msi.h	pci: Convert msi_init() to Error and fix callers to check it	2016-07-05 13:14:41 +03:00
msix.h	msix: make msix_clr_pending() visible for clients	2016-06-02 10:42:09 +08:00
pci_bridge.h	Clean up decorations and whitespace around header guards	2016-07-12 16:20:46 +02:00
pci_bus.h	hw/pci: delay bus_master_enable_region initialization	2016-07-04 14:50:01 +03:00
pci_host.h	pci: Fold host_buses list into PCIHostState functionality	2013-07-07 23:10:57 +03:00
pci_ids.h	Clean up decorations and whitespace around header guards	2016-07-12 16:20:46 +02:00
pci_regs.h	pci: Introduce define for PM capability version 1.1	2016-06-02 10:42:09 +08:00
pci-assign.h	hw/pci-assign: split pci-assign.c	2015-09-10 12:04:27 +00:00
pci.h	pcie: fix link active status bit migration	2016-07-29 00:07:08 +03:00
pcie_aer.h	pcie_aer: expose pcie_aer_msg() interface	2016-02-19 09:42:28 -07:00
pcie_host.h	pci: Split pcie_host_mmcfg_map()	2015-01-26 20:25:52 +02:00
pcie_port.h	pcie_port: Turn PCIEPort and PCIESlot into abstract QOM types	2013-07-29 20:45:24 +02:00
pcie_regs.h	pcie: Add support for PCIe CAP v1	2016-06-02 10:42:26 +08:00
pcie.h	pcie: Introduce function for DSN capability creation	2016-06-02 10:42:26 +08:00
shpc.h	include: Clean up includes	2016-02-23 12:43:05 +00:00
slotid_cap.h	hw: move headers to include/	2013-04-08 18:13:10 +02:00