[v4 8/8] iommu, x86: Properly handler PI for IOMMU hotplug

Return error when inserting a new IOMMU which doesn't support PI if PI is currently in use. Signed-off-by: Feng Wu --- drivers/iommu/intel_irq_remapping.c |3 +++ 1 files changed, 3 insertions(+), 0 deletions(-) diff --git a/drivers/iommu/intel_irq_remapping.c b/drivers/iommu/intel_irq_rem

[v4 8/8] iommu, x86: Properly handler PI for IOMMU hotplug

Return error when inserting a new IOMMU which doesn't support PI if PI is currently in use. Signed-off-by: Feng Wu --- drivers/iommu/intel_irq_remapping.c |3 +++ 1 files changed, 3 insertions(+), 0 deletions(-) diff --git a/drivers/iommu/intel_irq_remapping.c b/drivers/iommu/intel_irq_rem