blob: 5b1f2286aea9a7420dfc5e62fb366e3ca426a1ff (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
|
/* SPDX-License-Identifier: GPL-2.0 */
#include <linux/linkage.h>
#include <asm/frame.h>
#include "tdxcall.S"
/*
* __seamcall() - Host-side interface functions to SEAM software
* (the P-SEAMLDR or the TDX module).
*
* __seamcall() function ABI:
*
* @fn (RDI) - SEAMCALL Leaf number, moved to RAX
* @args (RSI) - struct tdx_module_args for input
*
* Only RCX/RDX/R8-R11 are used as input registers.
*
* Return (via RAX) TDX_SEAMCALL_VMFAILINVALID if the SEAMCALL itself
* fails, or the completion status of the SEAMCALL leaf function.
*/
SYM_FUNC_START(__seamcall)
TDX_MODULE_CALL host=1
SYM_FUNC_END(__seamcall)
/*
* __seamcall_ret() - Host-side interface functions to SEAM software
* (the P-SEAMLDR or the TDX module), with saving output registers to
* the 'struct tdx_module_args' used as input.
*
* __seamcall_ret() function ABI:
*
* @fn (RDI) - SEAMCALL Leaf number, moved to RAX
* @args (RSI) - struct tdx_module_args for input and output
*
* Only RCX/RDX/R8-R11 are used as input/output registers.
*
* Return (via RAX) TDX_SEAMCALL_VMFAILINVALID if the SEAMCALL itself
* fails, or the completion status of the SEAMCALL leaf function.
*/
SYM_FUNC_START(__seamcall_ret)
TDX_MODULE_CALL host=1 ret=1
SYM_FUNC_END(__seamcall_ret)
/*
* __seamcall_saved_ret() - Host-side interface functions to SEAM software
* (the P-SEAMLDR or the TDX module), with saving output registers to the
* 'struct tdx_module_args' used as input.
*
* __seamcall_saved_ret() function ABI:
*
* @fn (RDI) - SEAMCALL Leaf number, moved to RAX
* @args (RSI) - struct tdx_module_args for input and output
*
* All registers in @args are used as input/output registers.
*
* Return (via RAX) TDX_SEAMCALL_VMFAILINVALID if the SEAMCALL itself
* fails, or the completion status of the SEAMCALL leaf function.
*/
SYM_FUNC_START(__seamcall_saved_ret)
TDX_MODULE_CALL host=1 ret=1 saved=1
SYM_FUNC_END(__seamcall_saved_ret)
|
