Re: [RFC PATCH 10/15] virt: tdx-guest: Set up and accept private MMIO ranges

[Xiaoyao Li]

On 9/24/2026 12:10 PM, Zhenzhong Duan wrote:
> Build private MMIO descriptors from the TDI report using the PCI TSM
> MMIO helpers and accept each private range through TDG.MMIO.ACCEPT.
> 
> Keep the descriptors while the device remains locked and tear them
> down on acceptance failure and during unlock.

1. The changelog talks what it does but not why the patch is needed and what is
the design consideration. E.g.,

 - why choose to setup MMIO in the .run callback instead of .lock?

 - is tdx_tdi_mmio_teardown() safe for MMIO partial acceptance? when current
"run" fails with partial MMIO acceptance, can the second "run" work well?

2. So far tdx_devsec_run() always return -EOPNOTSUPP, and MMIO descriptors are
never retained.