[PATCH v3 33/35] iommu/hyper-v: Disable IRQ pseudo-remapping if 15 bit APIC IDs are available
From: David Woodhouse <dwmw2@infradead.org>
Date: 2020-10-24 21:35:50
Also in:
kvm, linux-iommu, lkml
Subsystem:
hyper-v/azure core and drivers, iommu subsystem, the rest · Maintainers:
"K. Y. Srinivasan", Haiyang Zhang, Wei Liu, Dexuan Cui, Long Li, Joerg Roedel, Will Deacon, Linus Torvalds
From: David Woodhouse <redacted> 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 <redacted> --- drivers/iommu/hyperv-iommu.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/iommu/hyperv-iommu.c b/drivers/iommu/hyperv-iommu.c
index a629a6be65c7..9438daa24fdb 100644
--- a/drivers/iommu/hyperv-iommu.c
+++ b/drivers/iommu/hyperv-iommu.c@@ -121,6 +121,7 @@ static int __init hyperv_prepare_irq_remapping(void) int i; if (!hypervisor_is_type(X86_HYPER_MS_HYPERV) || + x86_init.hyper.msi_ext_dest_id() || !x2apic_supported()) return -ENODEV;
--
2.26.2