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| author | Thomas Gleixner <tglx@linutronix.de> | 2020-08-26 13:17:01 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2020-09-16 16:52:37 +0200 |
| commit | 2c681e6b37674dc3941869cb262e26c8a6b34047 (patch) | |
| tree | b1079a2a6c208b8261e0f68d4d2d4334120b48df /arch/x86/kernel/apic/msi.c | |
| parent | 2b2c6aa63824c69c112bbe4f937f034c5e606a6c (diff) | |
| download | linux-2c681e6b37674dc3941869cb262e26c8a6b34047.tar.bz2 | |
x86/pci: Set default irq domain in pcibios_add_device()
Now that interrupt remapping sets the irqdomain pointer when a PCI device
is added it's possible to store the default irq domain in the device struct
in pcibios_add_device().
If the bus to which a device is connected has an irq domain associated then
this domain is used otherwise the default domain (PCI/MSI native or XEN
PCI/MSI) is used. Using the bus domain ensures that special MSI bus domains
like VMD work.
This makes XEN and the non-remapped native case work solely based on the
irq domain pointer in struct device for PCI/MSI and allows to remove the
arch fallback and make most of the x86_msi ops private to XEN in the next
steps.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20200826112333.900423047@linutronix.de
Diffstat (limited to 'arch/x86/kernel/apic/msi.c')
| -rw-r--r-- | arch/x86/kernel/apic/msi.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/apic/msi.c b/arch/x86/kernel/apic/msi.c index 39136f7bde70..6fd33378528f 100644 --- a/arch/x86/kernel/apic/msi.c +++ b/arch/x86/kernel/apic/msi.c @@ -21,7 +21,7 @@ #include <asm/apic.h> #include <asm/irq_remapping.h> -static struct irq_domain *x86_pci_msi_default_domain __ro_after_init; +struct irq_domain *x86_pci_msi_default_domain __ro_after_init; static void __irq_msi_compose_msg(struct irq_cfg *cfg, struct msi_msg *msg) { |