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iommu/hyper-v: Disable IRQ pseudo-remapping if 15 bit APIC IDs are available 

If the 15-bit APIC ID support is present in emulated MSI then there's no
need for the pseudo-remapping support.

Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20201024213535.443185-34-dwmw2@infradead.org
This commit is contained in:
David Woodhouse 2020-10-24 22:35:33 +01:00 committed by Thomas Gleixner
parent ab0f59c6f1
commit bf27ef8a77
1 changed files with 1 additions and 0 deletions
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1
drivers/iommu/hyperv-iommu.c
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@ -121,6 +121,7 @@ static int __init hyperv_prepare_irq_remapping(void)
int i; int i;
if (!hypervisor_is_type(X86_HYPER_MS_HYPERV) || if (!hypervisor_is_type(X86_HYPER_MS_HYPERV) ||
x86_init.hyper.msi_ext_dest_id() ||
!x2apic_supported()) !x2apic_supported())
return -ENODEV; return -ENODEV;