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PCI_vmd_Mark_VMD_irqdomain_with_DOMAIN_BUS_VMD_MSI

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Devices on the VMD bus use their own MSI irq domain, but it is not
distinguishable from regular PCI/MSI irq domains. This is required
to exclude VMD devices from getting the irq domain pointer set by
interrupt remapping.

Override the default bus token.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Joerg Roedel <jroedel@suse.de>
Link: https://lore.kernel.org/r/20200826112333.047315047@linutronix.de
This commit is contained in:
Thomas Gleixner 2020-08-26 13:16:52 +02:00
parent c6c9e2838c
commit d7f954e540
1 changed files with 6 additions and 0 deletions
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6
drivers/pci/controller/vmd.c
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@ -580,6 +580,12 @@ static int vmd_enable_domain(struct vmd_dev *vmd, unsigned long features)
return -ENODEV;
}
/*
* Override the irq domain bus token so the domain can be distinguished
* from a regular PCI/MSI domain.
*/
irq_domain_update_bus_token(vmd->irq_domain, DOMAIN_BUS_VMD_MSI);
pci_add_resource(&resources, &vmd->resources[0]);
pci_add_resource_offset(&resources, &vmd->resources[1], offset[0]);
pci_add_resource_offset(&resources, &vmd->resources[2], offset[1]);