Messages in this thread | | | Subject | Re: [PATCH v5 2/8] arm64: hyperv: Add hypercall and register access functions | Date | Wed, 06 Nov 2019 11:28:30 +0109 | From | Marc Zyngier <> |
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On 2019-10-03 20:12, Michael Kelley wrote: > Add ARM64-specific code to make Hyper-V hypercalls and to > access virtual processor synthetic registers via hypercalls. > Hypercalls use a Hyper-V specific calling sequence with a non-zero > immediate value per Section 2.9 of the SMC Calling Convention > spec.
I find this "following the spec by actively sidestepping it" counter productive. You (or rather the Hyper-V people) are reinventing the wheel (of the slightly square variety) instead of using the standard that the whole of the ARM ecosystem seems happy to take advantage of.
I wonder what is the rational for this. If something doesn't quite work for Hyper-V, I think we'd all like to know.
Thanks,
M. -- Jazz is not dead. It just smells funny...
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