Re: [PATCH v6 4/4] x86/sev: register tpm-svsm platform device

Borislav Petkov
2025-04-09T10:21:50Z

On Tue, Apr 08, 2025 at 01:54:07PM +0200, Stefano Garzarella wrote:
> I see, so IIUC I can just apply the following change to this patch and avoid
> to export snp_svsm_vtpm_probe() at all, right?
>
> diff --git a/arch/x86/coco/sev/core.c b/arch/x86/coco/sev/core.c
> index acbd9bc526b1..fa83e6c7f990 100644
> --- a/arch/x86/coco/sev/core.c
> +++ b/arch/x86/coco/sev/core.c
> @@ -2702,8 +2702,10 @@ static int __init snp_init_platform_device(void)
> if (platform_device_register(&sev_guest_device))
> return -ENODEV;
> - if (platform_device_register(&tpm_svsm_device))
> - return -ENODEV;
> + if (snp_svsm_vtpm_probe()) {
> + if (platform_device_register(&tpm_svsm_device))
> + return -ENODEV;
> + }
> pr_info("SNP guest platform device initialized.\n");
> return 0;

No, this should go in tpm_svsm_probe().

--
Regards/Gruss,
Boris.