From: Wei Liu <wei.liu@xxxxxxxxxx> Sent: Wednesday, February 3, 2021 7:05 AM > > Just like MSI/MSI-X, IO-APIC interrupts are remapped by Microsoft > Hypervisor when Linux runs as the root partition. Implement an IRQ > domain to handle mapping and unmapping of IO-APIC interrupts. > > Signed-off-by: Wei Liu <wei.liu@xxxxxxxxxx> > --- > v6: > 1. Simplify code due to changes in a previous patch. > --- > arch/x86/hyperv/irqdomain.c | 25 +++++ > arch/x86/include/asm/mshyperv.h | 4 + > drivers/iommu/hyperv-iommu.c | 177 +++++++++++++++++++++++++++++++- > 3 files changed, 203 insertions(+), 3 deletions(-) > Reviewed-by: Michael Kelley <mikelley@xxxxxxxxxxxxx>
