Messages in this thread | | | Date | Thu, 29 Jun 2023 13:15:19 +0300 | From | kirill.shutemov@linux ... | Subject | Re: [PATCH v12 05/22] x86/virt/tdx: Add SEAMCALL infrastructure |
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On Wed, Jun 28, 2023 at 03:54:36PM +0200, Peter Zijlstra wrote: > On Wed, Jun 28, 2023 at 02:58:13PM +0200, Peter Zijlstra wrote: > > > Can someone explain to me why __tdx_hypercall() is sane (per the above) > > but then we grew __tdx_module_call() as an absolute abomination and are > > apparently using that for seam too? > > That is, why do we have two different TDCALL wrappers? Makes no sense.
__tdx_module_call() is the wrapper for TDCALL.
__tdx_hypercall() is the wrapper for TDG.VP.VMCALL leaf function of TDCALL. The function is used often and it uses wider range or registers comparing to the rest of the TDCALL functions.
-- Kiryl Shutsemau / Kirill A. Shutemov
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