Messages in this thread | | | Date | Fri, 24 Dec 2021 13:34:10 +0300 | From | "Kirill A. Shutemov" <> | Subject | Re: [PATCH 03/26] x86/tdx: Add __tdx_module_call() and __tdx_hypercall() helper functions |
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On Fri, Dec 24, 2021 at 10:16:16AM +0100, Paolo Bonzini wrote: > On 12/23/21 17:55, Kirill A. Shutemov wrote: > > In a TDX based VM, since the VMM is an untrusted entity, an intermediary > > layer -- TDX module -- facilitates secure communication between the host > > and the guest. TDX module is loaded like a firmware into a special CPU > > mode called SEAM. TDX guests communicate with the TDX module using the > > TDCALL instruction. > > > > Does it look fine? > > Looks good but I wouldn't say "like a firmware". The TDX module is the > "real" hypervisor, it's not firmware.
We are talking about the way it gets loaded, not about its functionality. > > Paolo >
-- Kirill A. Shutemov
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