1 /* SPDX-License-Identifier: GPL-2.0-only */
2
3 #ifndef __ASM_SPECTRE_H
4 #define __ASM_SPECTRE_H
5
6 enum {
7 SPECTRE_UNAFFECTED,
8 SPECTRE_MITIGATED,
9 SPECTRE_VULNERABLE,
10 };
11
12 enum {
13 __SPECTRE_V2_METHOD_BPIALL,
14 __SPECTRE_V2_METHOD_ICIALLU,
15 __SPECTRE_V2_METHOD_SMC,
16 __SPECTRE_V2_METHOD_HVC,
17 __SPECTRE_V2_METHOD_LOOP8,
18 };
19
20 enum {
21 SPECTRE_V2_METHOD_BPIALL = BIT(__SPECTRE_V2_METHOD_BPIALL),
22 SPECTRE_V2_METHOD_ICIALLU = BIT(__SPECTRE_V2_METHOD_ICIALLU),
23 SPECTRE_V2_METHOD_SMC = BIT(__SPECTRE_V2_METHOD_SMC),
24 SPECTRE_V2_METHOD_HVC = BIT(__SPECTRE_V2_METHOD_HVC),
25 SPECTRE_V2_METHOD_LOOP8 = BIT(__SPECTRE_V2_METHOD_LOOP8),
26 };
27
28 #ifdef CONFIG_GENERIC_CPU_VULNERABILITIES
29 void spectre_v2_update_state(unsigned int state, unsigned int methods);
30 #else
31 static inline void spectre_v2_update_state(unsigned int state,
32 unsigned int methods)
33 {}
34 #endif
35
36 int spectre_bhb_update_vectors(unsigned int method);
37
38 void cpu_v7_ca8_ibe(void);
39 void cpu_v7_ca15_ibe(void);
40 void cpu_v7_bugs_init(void);
41
42 #endif
43
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