iommu/amd: Don't register interrupt remapping irqdomain when IR is disabled

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Registering the remapping irq domain unconditionally is potentially
allowing I/O-APIC and MSI interrupts to be parented in the IOMMU IR domain
even when IR is disabled. Don't do that.

Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20201111144322.1659970-1-dwmw2@infradead.org

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David Woodhouse 2020-11-11 14:43:20 +00:00 • committed by Thomas Gleixner

parent 2fb6acf3ed

commit 2df985f5e4

1 changed files with 5 additions and 3 deletions

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drivers/iommu/amd/init.c

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