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47b802d5d8
linux/drivers/pci
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Chen Yu 47b802d5d8 PCI/PM: Print config space of devices before suspend 
When resuming from hibernation (S4, also known as "suspend to disk") on a
VM, we have seen invalid config space, e.g.,

  serial 0000:00:16.3: restoring config space at offset 0x14 (was 0x9104e000, writing 0xffffffff)

To help debug problems like this, log the config space being saved before
suspend, similar to the log in pci_restore_config_dword() when resuming.

Link: https://lore.kernel.org/r/20200113060724.19571-1-yu.c.chen@intel.com
[bhelgaas: commit log]
Signed-off-by: Chen Yu <yu.c.chen@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Len Brown <lenb@kernel.org>
2020-01-13 15:43:38 -06:00
..
controller Merge branch 'pci/trivial' 2019-11-28 08:54:55 -06:00
endpoint Merge branch 'remotes/lorenzo/pci/endpoint' 2019-11-28 08:54:42 -06:00
hotplug pci-v5.5-changes 2019-12-03 13:58:22 -08:00
pcie Merge branch 'pci/misc' 2019-11-28 08:54:32 -06:00
switch pci-v5.5-changes 2019-12-03 13:58:22 -08:00
access.c PCI/AER: Save AER Capability for suspend/resume 2019-10-18 17:05:42 -05:00
ats.c PCI/ATS: Remove unnecessary EXPORT_SYMBOL_GPL() 2019-10-15 16:39:11 -05:00
bus.c PCI: Unexport pci_bus_get() and pci_bus_put() 2019-07-23 18:32:49 -05:00
ecam.c
host-bridge.c
iov.c Merge branch 'pci/trivial' 2019-11-28 08:54:55 -06:00
irq.c
Kconfig Merge branch 'pci/trivial' 2019-11-28 08:54:55 -06:00
Makefile PCI: Allow building PCIe things without PCIEPORTBUS 2019-11-21 07:52:33 -06:00
mmap.c PCI: Fix typos and whitespace errors 2019-07-09 07:24:53 -05:00
msi.c PCI/MSI: Fix incorrect MSI-X masking on resume 2019-11-26 13:10:29 -06:00
of.c PCI: Make devm_of_pci_get_host_bridge_resources() static 2019-11-20 17:00:14 +00:00
p2pdma.c PCI/P2PDMA: Update pci_p2pdma_distance_many() documentation 2019-08-16 08:41:59 -05:00
pci-acpi.c Merge branch 'pci/enumeration' 2019-09-23 16:10:08 -05:00
pci-bridge-emul.c PCI: pci-bridge-emul: Fix big-endian support 2019-10-17 12:42:48 +01:00
pci-bridge-emul.h PCI: pci-bridge-emul: Fix big-endian support 2019-10-17 12:42:48 +01:00
pci-driver.c PCI/PM: Add missing link delays required by the PCIe spec 2019-11-20 17:37:24 -06:00
pci-label.c
pci-mid.c x86/cpu: Sanitize FAM6_ATOM naming 2018-10-02 10:14:32 +02:00
pci-pf-stub.c PCI: Fix typos and whitespace errors 2019-07-09 07:24:53 -05:00
pci-stub.c PCI: Replace printk(KERN_INFO) with pr_info(), etc 2019-05-09 07:49:54 -05:00
pci-sysfs.c Merge branch 'pci/resource' 2019-11-28 08:54:36 -06:00
pci.c PCI/PM: Print config space of devices before suspend 2020-01-13 15:43:38 -06:00
pci.h Merge branch 'remotes/lorenzo/pci/mmio-dma-ranges' 2019-11-28 08:54:53 -06:00
probe.c Merge branch 'pci/trivial' 2019-11-28 08:54:55 -06:00
proc.c PCI: Add PCI_STD_NUM_BARS for the number of standard BARs 2019-10-14 10:22:26 -05:00
quirks.c Merge branch 'pci/trivial' 2019-11-28 08:54:55 -06:00
remove.c PCI/ASPM: Fix link_state teardown on device removal 2018-09-17 16:32:23 -05:00
rom.c
search.c PCI: Unexport pci_bus_sem 2019-07-23 18:32:50 -05:00
setup-bus.c PCI: Avoid double hpmemsize MMIO window assignment 2019-11-14 15:02:10 -06:00
setup-irq.c
setup-res.c
slot.c PCI: Decode PCIe 32 GT/s link speed 2019-06-13 16:49:45 -05:00
syscall.c PCI: Lock down BAR access when the kernel is locked down 2019-08-19 21:54:15 -07:00
vc.c Merge branch 'pci/trivial' 2019-09-23 16:10:31 -05:00
vpd.c PCI/VPD: Prevent VPD access for Amazon's Annapurna Labs Root Port 2019-09-16 14:10:09 +01:00
xen-pcifront.c Merge branch 'pci/printk' 2019-05-13 18:34:46 -05:00