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| author |   Thomas Gleixner <tglx@linutronix.de> | 2020-08-26 13:16:52 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2020-09-16 16:52:36 +0200 |
| commit | d7f954e54079b4bf6088956d59f43768ec71269a (patch) | |
| tree | 674000dc5acf408ad0214eafe359d3a3efbc6363 /drivers/pci | |
| parent | irqdomain/msi: Provide DOMAIN_BUS_VMD_MSI (diff) | |
| download | linux-dev-d7f954e54079b4bf6088956d59f43768ec71269a.tar.xz linux-dev-d7f954e54079b4bf6088956d59f43768ec71269a.zip | |
PCI_vmd_Mark_VMD_irqdomain_with_DOMAIN_BUS_VMD_MSI
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
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/controller/vmd.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/pci/controller/vmd.c b/drivers/pci/controller/vmd.c index 411eed6fb2bc..aa1b12bac9a1 100644 --- a/drivers/pci/controller/vmd.c +++ b/drivers/pci/controller/vmd.c @@ -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]); |