1/* SPDX-License-Identifier: GPL-2.0 */
2#include <linux/linkage.h>
3#include <asm/frame.h>
4
5#include "tdxcall.S"
6
7/*
8 * __seamcall() - Host-side interface functions to SEAM software
9 * (the P-SEAMLDR or the TDX module).
10 *
11 * __seamcall() function ABI:
12 *
13 * @fn   (RDI)  - SEAMCALL Leaf number, moved to RAX
14 * @args (RSI)  - struct tdx_module_args for input
15 *
16 * Only RCX/RDX/R8-R11 are used as input registers.
17 *
18 * Return (via RAX) TDX_SEAMCALL_VMFAILINVALID if the SEAMCALL itself
19 * fails, or the completion status of the SEAMCALL leaf function.
20 */
21SYM_FUNC_START(__seamcall)
22	TDX_MODULE_CALL host=1
23SYM_FUNC_END(__seamcall)
24
25/*
26 * __seamcall_ret() - Host-side interface functions to SEAM software
27 * (the P-SEAMLDR or the TDX module), with saving output registers to
28 * the 'struct tdx_module_args' used as input.
29 *
30 * __seamcall_ret() function ABI:
31 *
32 * @fn   (RDI)  - SEAMCALL Leaf number, moved to RAX
33 * @args (RSI)  - struct tdx_module_args for input and output
34 *
35 * Only RCX/RDX/R8-R11 are used as input/output registers.
36 *
37 * Return (via RAX) TDX_SEAMCALL_VMFAILINVALID if the SEAMCALL itself
38 * fails, or the completion status of the SEAMCALL leaf function.
39 */
40SYM_FUNC_START(__seamcall_ret)
41	TDX_MODULE_CALL host=1 ret=1
42SYM_FUNC_END(__seamcall_ret)
43
44/*
45 * __seamcall_saved_ret() - Host-side interface functions to SEAM software
46 * (the P-SEAMLDR or the TDX module), with saving output registers to the
47 * 'struct tdx_module_args' used as input.
48 *
49 * __seamcall_saved_ret() function ABI:
50 *
51 * @fn   (RDI)  - SEAMCALL Leaf number, moved to RAX
52 * @args (RSI)  - struct tdx_module_args for input and output
53 *
54 * All registers in @args are used as input/output registers.
55 *
56 * Return (via RAX) TDX_SEAMCALL_VMFAILINVALID if the SEAMCALL itself
57 * fails, or the completion status of the SEAMCALL leaf function.
58 */
59SYM_FUNC_START(__seamcall_saved_ret)
60	TDX_MODULE_CALL host=1 ret=1 saved=1
61SYM_FUNC_END(__seamcall_saved_ret)
62