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    SubjectRe: [PATCH v8 07/11] x86/tdx: Add HLT support for TDX guest
    On Fri, Oct 08, 2021 at 10:38:22AM -0700, Kuppuswamy, Sathyanarayanan wrote:
    > Yes. As per ABI, I don't need to clear it. It will not be used by VMM.
    > But since that register content is shared with VMM, I tried to keep the
    > unused register values to '0' (consistent with other hypercall use cases).
    >
    > I am fine with removing it if you think it is unnecessary.

    Yeah, you probably wanna clear it after all, just in case, as Dirk says.

    --
    Regards/Gruss,
    Boris.

    https://people.kernel.org/tglx/notes-about-netiquette

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