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x86/irq: Initialize PCI/MSI domain at PCI init time

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No point in initializing the default PCI/MSI interrupt domain early and no
point to create it when XEN PV/HVM/DOM0 are active.

Move the initialization to pci_arch_init() and convert it to init ops so
that XEN can override it as XEN has it's own PCI/MSI management. The XEN
override comes in a later step.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20200826112332.859209894@linutronix.de
This commit is contained in:
Thomas Gleixner
2020-08-26 13:16:50 +02:00
parent 445d3595ab
commit 6b15ffa07d
6 changed files with 32 additions and 17 deletions
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2
arch/x86/kernel/apic/vector.c
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@@ -714,8 +714,6 @@ int __init arch_early_irq_init(void)
BUG_ON(x86_vector_domain == NULL);
irq_set_default_host(x86_vector_domain);
arch_init_msi_domain(x86_vector_domain);
BUG_ON(!alloc_cpumask_var(&vector_searchmask, GFP_KERNEL));
/*