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authorChen Yu <yu.c.chen@intel.com>2020-01-13 14:07:24 +0800
committerBjorn Helgaas <bhelgaas@google.com>2020-01-13 15:43:38 -0600
commit47b802d5d80c2fef3ccd9772d518bd602c83cea1 (patch)
tree6128cfbd479a7b45a807f304a6f36c6854411668 /drivers/pci/controller/pci-host-common.c
parente42617b825f8073569da76dc4510bfa019b1c35a (diff)
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>
Diffstat (limited to 'drivers/pci/controller/pci-host-common.c')
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