Workflow for Issuing SEAMCALLs

[pansilup]

Hi there, I'm looking for some information on the workflow of issuing SEAMCALLs and have some basic questions. Can I check if TDX enlightened KVM has opened up new TDX specific ioctls for user space (e.g., QEMU) to initiate/issue SEAMCALLs as part of TDX-Env/TD management?
For instance,
1.Who is supposed to call "tdx_enable()" in https://github.com/torvalds/linux/blob/ae90f6a6170d7a7a1aa4fddf664fbd093e3023bc/arch/x86/virt/vmx/tdx/tdx.c#L1215
2.How does a SEAMCALLs (such as TDH_MNG_CREATE) request arrive at https://github.com/torvalds/linux/blob/ae90f6a6170d7a7a1aa4fddf664fbd093e3023bc/arch/x86/virt/vmx/tdx/seamcall.S#L21
Any information or documentation on this would be greatly appreciated.

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The internal ticket has been created: https://warthogs.atlassian.net/browse/PEK-1416.

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[bktan8]

@pansilup - Please take a look at https://docs.kernel.org/arch/x86/tdx.html.

[pansilup]

@bktan8 Thanks for the response and the link. I had previously checked this. It doesn't answer my specific questions.