Re: [RFC PATCH 06/15] x86/virt/tdx: Initialize Quoting extension during bringup

[Adrian Hunter]

On 22/05/2026 06:41, Xu Yilun wrote:
> From: Peter Fang <peter.fang@xxxxxxxxx>
> 
> Initialize the Quoting extension and fetch its metadata during TDX
> bringup.
> 
> Because Quoting is an optional TDX feature, do not let its
> initialization failures cause TDX bringup to fail.

Is there a reason Linux needs to support TDX with failed Quote
extension initialization?

> +static void tdx_quote_init(void)
> +{
> +	struct tdx_module_args args = {};
> +	u64 r;
> +
> +	do {
> +		r = seamcall(TDH_QUOTE_INIT, &args);
> +	} while (r == TDX_INTERRUPTED_RESUMABLE);
> +
> +	if (r)

Elsewhere it tends to be:

	if (r != TDX_SUCCESS)

> +		return;
> +
> +	/* Quoting metadata is valid only after initialization */
> +	get_tdx_sys_info_quote(&tdx_sysinfo.quote);