Re: [PATCH 1/2] KVM: TDX: Handle TDG.VP.VMCALL<GetQuote>

[Huang, Kai]

On Wed, 2025-04-02 at 08:15 +0800, Binbin Wu wrote:
> +::
> +
> +		/* KVM_EXIT_TDX_GET_QUOTE */
> +		struct tdx_get_quote {
> +			__u64 ret;
> +			__u64 gpa;
> +			__u64 size;
> +		};
> +

The shared buffer pointed by the @gpa also has a format defined in the GHCI
spec.  E.g., it has a 'status code' field.  Does userspace VMM need to setup
this 'status code' as well?

I recall that we used to set the GET_QUOTE_IN_FLIGHT flag in Qemu but not sure
whether it is still true?

I am thinking if Qemu needs to set it, then we need to expose the structure of
the shared buffer to userspace too.