The IOMMU code needs more work. We're sure for now the IRQ remapping hooks are not applicable when Linux is the root.
Signed-off-by: Wei Liu <wei....@kernel.org> Acked-by: Joerg Roedel <jroe...@suse.de> --- drivers/iommu/hyperv-iommu.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/iommu/hyperv-iommu.c b/drivers/iommu/hyperv-iommu.c index e09e2d734c57..8d3ce3add57d 100644 --- a/drivers/iommu/hyperv-iommu.c +++ b/drivers/iommu/hyperv-iommu.c @@ -20,6 +20,7 @@ #include <asm/io_apic.h> #include <asm/irq_remapping.h> #include <asm/hypervisor.h> +#include <asm/mshyperv.h> #include "irq_remapping.h" @@ -143,7 +144,7 @@ static int __init hyperv_prepare_irq_remapping(void) int i; if (!hypervisor_is_type(X86_HYPER_MS_HYPERV) || - !x2apic_supported()) + !x2apic_supported() || hv_root_partition) return -ENODEV; fn = irq_domain_alloc_named_id_fwnode("HYPERV-IR", 0); -- 2.20.1 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu