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    SubjectRe: [PATCH 1/6] x86/tdx: Support hypercalls for TDX guests on Hyper-V
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    On 11/21/22 11:51, Dexuan Cui wrote:
    > __tdx_hypercall() doesn't work for a TDX guest running on Hyper-V,
    > because Hyper-V uses a different calling convention, so add the
    > new function __tdx_ms_hv_hypercall().

    Other than R10 being variable here and fixed for __tdx_hypercall(), this
    looks *EXACTLY* the same as __tdx_hypercall(), or at least a strict
    subset of what __tdx_hypercall() can do.

    Did I miss something?

    Another way of saying this: It seems like you could do this with a new
    version of _tdx_hypercall() (and all in C) instead of a new
    __tdx_hypercall().

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