spectre.h

 1/* SPDX-License-Identifier: GPL-2.0-only */
 2
 3#ifndef __ASM_SPECTRE_H
 4#define __ASM_SPECTRE_H
 5
 6enum {
 7	SPECTRE_UNAFFECTED,
 8	SPECTRE_MITIGATED,
 9	SPECTRE_VULNERABLE,
10};
11
12enum {
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
20enum {
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
29void spectre_v2_update_state(unsigned int state, unsigned int methods);
30#else
31static inline void spectre_v2_update_state(unsigned int state,
32					   unsigned int methods)
33{}
34#endif
35
36int spectre_bhb_update_vectors(unsigned int method);
37
38void cpu_v7_ca8_ibe(void);
39void cpu_v7_ca15_ibe(void);
40void cpu_v7_bugs_init(void);
41
42#endif