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 function
9 * (the P-SEAMLDR or the TDX module).
10 *
11 * __seamcall() function ABI:
12 *
13 * @fn (RDI) - SEAMCALL Leaf number, moved
14 * @args (RSI) - struct tdx_module_args for i
15 *
16 * Only RCX/RDX/R8-R11 are used as input regis
17 *
18 * Return (via RAX) TDX_SEAMCALL_VMFAILINVALID
19 * fails, or the completion status of the SEAM
20 */
21 SYM_FUNC_START(__seamcall)
22 TDX_MODULE_CALL host=1
23 SYM_FUNC_END(__seamcall)
24
25 /*
26 * __seamcall_ret() - Host-side interface func
27 * (the P-SEAMLDR or the TDX module), with sav
28 * the 'struct tdx_module_args' used as input.
29 *
30 * __seamcall_ret() function ABI:
31 *
32 * @fn (RDI) - SEAMCALL Leaf number, moved
33 * @args (RSI) - struct tdx_module_args for i
34 *
35 * Only RCX/RDX/R8-R11 are used as input/outpu
36 *
37 * Return (via RAX) TDX_SEAMCALL_VMFAILINVALID
38 * fails, or the completion status of the SEAM
39 */
40 SYM_FUNC_START(__seamcall_ret)
41 TDX_MODULE_CALL host=1 ret=1
42 SYM_FUNC_END(__seamcall_ret)
43
44 /*
45 * __seamcall_saved_ret() - Host-side interfac
46 * (the P-SEAMLDR or the TDX module), with sav
47 * 'struct tdx_module_args' used as input.
48 *
49 * __seamcall_saved_ret() function ABI:
50 *
51 * @fn (RDI) - SEAMCALL Leaf number, moved
52 * @args (RSI) - struct tdx_module_args for i
53 *
54 * All registers in @args are used as input/ou
55 *
56 * Return (via RAX) TDX_SEAMCALL_VMFAILINVALID
57 * fails, or the completion status of the SEAM
58 */
59 SYM_FUNC_START(__seamcall_saved_ret)
60 TDX_MODULE_CALL host=1 ret=1 saved=1
61 SYM_FUNC_END(__seamcall_saved_ret)
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.