Messages in this thread | | | Subject | Re: [PATCH 0/4] Add support for XMM fast hypercalls | From | Paolo Bonzini <> | Date | Thu, 8 Apr 2021 17:30:26 +0200 |
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On 08/04/21 17:28, Wei Liu wrote: >> Although the Hyper-v TLFS mentions that a guest cannot use this feature >> unless the hypervisor advertises support for it, some hypercalls which >> we plan on upstreaming in future uses them anyway. > > No, please don't do this. Check the feature bit(s) before you issue > hypercalls which rely on the extended interface.
Perhaps Siddharth should clarify this, but I read it as Hyper-V being buggy and using XMM arguments unconditionally.
Paolo
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