Subject: Re: linux-next: manual merge of the kvm-x86 tree with the tip tree

From: Sean Christopherson <[email-masked]>
Date: Wed, 4 Mar 2026 15:10:14 -0800

On Wed, Mar 04, 2026, Mark Brown wrote:
> Hi all,
> 
> Today's linux-next merge of the kvm-x86 tree got a conflict in:
> 
>   arch/x86/virt/vmx/tdx/tdx_global_metadata.c
> 
> between commit:
> 
>   311214bf1df4b ("x86/virt/tdx: Retrieve TDX module version")
> 
> from the tip tree and commit:
> 
>   75b6c694eaed4 ("x86/virt/tdx: Tag a pile of functions as __init, and globals as __ro_after_init")
> 
> from the kvm-x86 tree.
> 
> I fixed it up (see below) and can carry the fix as necessary. This
> is now fixed as far as linux-next is concerned, but any non trivial
> conflicts should be mentioned to your upstream maintainer when your tree
> is submitted for merging.  You may also want to consider cooperating
> with the maintainer of the conflicting tree to minimise any particularly
> complex conflicts.
> 
> diff --cc arch/x86/virt/vmx/tdx/tdx_global_metadata.c
> index 4c9917a9c2c39,360963bc9328f..0000000000000
> --- a/arch/x86/virt/vmx/tdx/tdx_global_metadata.c
> +++ b/arch/x86/virt/vmx/tdx/tdx_global_metadata.c
> @@@ -7,22 -7,7 +7,22 @@@
>    * Include this file to other C file instead.
>    */
>   
>  +static int get_tdx_sys_info_version(struct tdx_sys_info_version *sysinfo_version)

Functionally this is a-ok, but we should remember to mention to Linus (and Paolo)
that this can be marked __init when the two branches get smushed together.

Thanks Mark!

>  +{
>  +	int ret = 0;
>  +	u64 val;
>  +
>  +	if (!ret && !(ret = read_sys_metadata_field(0x0800000100000003, &val)))
>  +		sysinfo_version->minor_version = val;
>  +	if (!ret && !(ret = read_sys_metadata_field(0x0800000100000004, &val)))
>  +		sysinfo_version->major_version = val;
>  +	if (!ret && !(ret = read_sys_metadata_field(0x0800000100000005, &val)))
>  +		sysinfo_version->update_version = val;
>  +
>  +	return ret;
>  +}
>  +
> - static int get_tdx_sys_info_features(struct tdx_sys_info_features *sysinfo_features)
> + static __init int get_tdx_sys_info_features(struct tdx_sys_info_features *sysinfo_features)
>   {
>   	int ret = 0;
>   	u64 val;