RE: [PATCH v6 16/16] iommu/hyperv: setup an IO-APIC IRQ remapping domain for root partition
From: Michael Kelley <hidden>
Date: 2021-02-04 17:55:30
Also in:
linux-iommu, lkml, virtualization
From: Wei Liu <wei.liu@kernel.org> 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@kernel.org> --- 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 <redacted>