| Date | Tue, 19 Apr 2022 07:07:50 -0700 | Subject | Re: [PATCH v3 03/21] x86/virt/tdx: Implement the SEAMCALL base function | From | Sathyanarayanan Kuppuswamy <> |
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On 4/5/22 9:49 PM, Kai Huang wrote: > SEAMCALL leaf functions use an ABI different from the x86-64 system-v > ABI. Instead, they share the same ABI with the TDCALL leaf functions.
TDCALL is a new term for this patch set. Maybe add some detail about it in ()?.
> %rax is used to carry both the SEAMCALL leaf function number (input) and > the completion status code (output). Additional GPRs (%rcx, %rdx, > %r8->%r11) may be further used as both input and output operands in > individual leaf functions.
-- Sathyanarayanan Kuppuswamy Linux Kernel Developer
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