On Thu, 17 Feb 2022 11:45:19 +0800, Boqun Feng wrote:
> On ARM64 Hyper-V guests, SPIs are used for the interrupts of virtual PCI
> devices, and SPIs can be managed directly via GICD registers. Therefore
> the retarget interrupt hypercall is not needed on ARM64.
>
> An arch-specific interface hv_arch_irq_unmask() is introduced to handle
> the architecture level differences on this. For x86, the behavior
> remains unchanged, while for ARM64 no hypercall is invoked when
> unmasking an irq for virtual PCI devices.
>
> [...]
Applied to pci/hv, thanks!
[1/1] PCI: hv: Avoid the retarget interrupt hypercall in irq_unmask() on ARM64
https://git.kernel.org/lpieralisi/pci/c/d06957d7a6
Thanks,
Lorenzo
