Re: [PATCH v4 05/24] x86/virt/seamldr: Retrieve P-SEAMLDR information

[Chao Gao]

On Fri, Feb 20, 2026 at 05:36:33PM +0800, Huang, Kai wrote:
>
>> +int seamldr_get_info(struct seamldr_info *seamldr_info)
>> +{
>> +	struct tdx_module_args args = { .rcx = slow_virt_to_phys(seamldr_info) };
>
>Should we have a comment for slow_virt_to_phys()?  This patch alone doesn't
>really tell where is the memory from.

How about:

	/*
	 * Use slow_virt_to_phys() since @seamldr_info may be allocated on
	 * the stack.
	 */

I was hesitant to add a comment since most existing slow_virt_to_phys() usage
lacks comments.


>
>Btw, it it were me, I would just merge this patch with the next one.  Then
>it's clear the memory comes from tdx-host module's stack.  The merged patch
>won't be too big to review either (IMHO).  You can then have this
>seamldr_get_info() and its user together in one patch, with one changelog to
>tell the full story.
>
>But just my 2cents, feel free to ignore. 

I'm fine with this. But let's see what others think about merging the patches.

>
>> +
>> +	return seamldr_call(P_SEAMLDR_INFO, &args);
>> +}
>> +EXPORT_SYMBOL_FOR_MODULES(seamldr_get_info, "tdx-host");
>> -- 
>> 2.47.3