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x86-xstate.h
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1 /* Common code for x86 XSAVE extended state.
2
3 Copyright (C) 2010-2018 Free Software Foundation, Inc.
4
5 This file is part of GDB.
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
19
20 #ifndef X86_XSTATE_H
21 #define X86_XSTATE_H 1
22
23 /* The extended state feature bits. */
24 #define X86_XSTATE_X87 (1ULL << 0)
25 #define X86_XSTATE_SSE (1ULL << 1)
26 #define X86_XSTATE_AVX (1ULL << 2)
27 #define X86_XSTATE_BNDREGS (1ULL << 3)
28 #define X86_XSTATE_BNDCFG (1ULL << 4)
29 #define X86_XSTATE_MPX (X86_XSTATE_BNDREGS | X86_XSTATE_BNDCFG)
30
31 /* AVX 512 adds three feature bits. All three must be enabled. */
32 #define X86_XSTATE_K (1ULL << 5)
33 #define X86_XSTATE_ZMM_H (1ULL << 6)
34 #define X86_XSTATE_ZMM (1ULL << 7)
35 #define X86_XSTATE_AVX512 (X86_XSTATE_K | X86_XSTATE_ZMM_H \
36 | X86_XSTATE_ZMM)
37
38 #define X86_XSTATE_PKRU (1ULL << 9)
39
40 /* Supported mask and size of the extended state. */
41 #define X86_XSTATE_X87_MASK X86_XSTATE_X87
42 #define X86_XSTATE_SSE_MASK (X86_XSTATE_X87 | X86_XSTATE_SSE)
43 #define X86_XSTATE_AVX_MASK (X86_XSTATE_SSE_MASK | X86_XSTATE_AVX)
44 #define X86_XSTATE_MPX_MASK (X86_XSTATE_SSE_MASK | X86_XSTATE_MPX)
45 #define X86_XSTATE_AVX_MPX_MASK (X86_XSTATE_AVX_MASK | X86_XSTATE_MPX)
46 #define X86_XSTATE_AVX_AVX512_MASK (X86_XSTATE_AVX_MASK | X86_XSTATE_AVX512)
47 #define X86_XSTATE_AVX_MPX_AVX512_PKU_MASK (X86_XSTATE_AVX_MPX_MASK\
48 | X86_XSTATE_AVX512 | X86_XSTATE_PKRU)
49
50 #define X86_XSTATE_ALL_MASK (X86_XSTATE_AVX_MPX_AVX512_PKU_MASK)
51
52
53 #define X86_XSTATE_SSE_SIZE 576
54 #define X86_XSTATE_AVX_SIZE 832
55 #define X86_XSTATE_BNDREGS_SIZE 1024
56 #define X86_XSTATE_BNDCFG_SIZE 1088
57 #define X86_XSTATE_AVX512_SIZE 2688
58 #define X86_XSTATE_PKRU_SIZE 2696
59 #define X86_XSTATE_MAX_SIZE 2696
60
61
62 /* In case one of the MPX XCR0 bits is set we consider we have MPX. */
63 #define HAS_MPX(XCR0) (((XCR0) & X86_XSTATE_MPX) != 0)
64 #define HAS_AVX(XCR0) (((XCR0) & X86_XSTATE_AVX) != 0)
65 #define HAS_AVX512(XCR0) (((XCR0) & X86_XSTATE_AVX512) != 0)
66 #define HAS_PKRU(XCR0) (((XCR0) & X86_XSTATE_PKRU) != 0)
67
68 /* Get I386 XSAVE extended state size. */
69 #define X86_XSTATE_SIZE(XCR0) \
70 (HAS_PKRU (XCR0) ? X86_XSTATE_PKRU_SIZE : \
71 (HAS_AVX512 (XCR0) ? X86_XSTATE_AVX512_SIZE : \
72 (HAS_MPX (XCR0) ? X86_XSTATE_BNDCFG_SIZE : \
73 (HAS_AVX (XCR0) ? X86_XSTATE_AVX_SIZE : X86_XSTATE_SSE_SIZE))))
74
75 #endif /* X86_XSTATE_H */