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Red Hat Bugzilla – Attachment 615482 Details for
Bug 849223
RHEL5 Xen SR-IOV VF PCI passthru does not work to RHEL6 HVM guest; no interrupts received on the guest VF
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[patch]
[1/1] PCI: Set device power state to PCI_D0 for device without native PM support
1-PCI-Set-device-power-state-to-PCI_D0-for-device-without-native-PM-support.patch (text/plain), 584 bytes, created by
Laszlo Ersek
on 2012-09-21 15:14:22 UTC
(
hide
)
Description:
[1/1] PCI: Set device power state to PCI_D0 for device without native PM support
Filename:
MIME Type:
Creator:
Laszlo Ersek
Created:
2012-09-21 15:14:22 UTC
Size:
584 bytes
patch
obsolete
>0ffa5a8d85e241a81b5c6feab06aa30c9d3f8cf6 >diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c >index ad197ba..2b8828b 100644 >--- a/drivers/pci/pci.c >+++ b/drivers/pci/pci.c >@@ -612,6 +612,9 @@ static int pci_platform_power_transition(struct pci_dev *dev, pci_power_t state) > error = platform_pci_set_power_state(dev, state); > if (!error) > pci_update_current_state(dev, state); >+ /* Fall back to PCI_D0 if native PM is not supported */ >+ if (!dev->pm_cap) >+ dev->current_state = PCI_D0; > } else { > error = -ENODEV; > /* Fall back to PCI_D0 if native PM is not supported */
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