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| author | Philippe Schenker <philippe.schenker@toradex.com> | 2022-05-19 16:29:13 +0200 |
|---|---|---|
| committer | Philippe Schenker <philippe.schenker@toradex.com> | 2022-05-19 16:29:13 +0200 |
| commit | e6fb5c32f78f99682821f91b3959e222c93e4cb9 (patch) | |
| tree | 3f6c281a7d83a6e3c0a153f93718f7cd9a39b6f7 /arch/arm/include/asm/spectre.h | |
| parent | 585dc27c53b6c1a32a7e11b724e91d7297388a13 (diff) | |
| parent | b7007e1d615b8d4b71c28ebf790c5164fc4491d5 (diff) | |
Merge remote-tracking branch 'gh-fslc/5.4-2.3.x-imx' into toradex_5.4-2.3.x-imx
Diffstat (limited to 'arch/arm/include/asm/spectre.h')
| -rw-r--r-- | arch/arm/include/asm/spectre.h | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/arch/arm/include/asm/spectre.h b/arch/arm/include/asm/spectre.h new file mode 100644 index 000000000000..85f9e538fb32 --- /dev/null +++ b/arch/arm/include/asm/spectre.h @@ -0,0 +1,38 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#ifndef __ASM_SPECTRE_H +#define __ASM_SPECTRE_H + +enum { + SPECTRE_UNAFFECTED, + SPECTRE_MITIGATED, + SPECTRE_VULNERABLE, +}; + +enum { + __SPECTRE_V2_METHOD_BPIALL, + __SPECTRE_V2_METHOD_ICIALLU, + __SPECTRE_V2_METHOD_SMC, + __SPECTRE_V2_METHOD_HVC, + __SPECTRE_V2_METHOD_LOOP8, +}; + +enum { + SPECTRE_V2_METHOD_BPIALL = BIT(__SPECTRE_V2_METHOD_BPIALL), + SPECTRE_V2_METHOD_ICIALLU = BIT(__SPECTRE_V2_METHOD_ICIALLU), + SPECTRE_V2_METHOD_SMC = BIT(__SPECTRE_V2_METHOD_SMC), + SPECTRE_V2_METHOD_HVC = BIT(__SPECTRE_V2_METHOD_HVC), + SPECTRE_V2_METHOD_LOOP8 = BIT(__SPECTRE_V2_METHOD_LOOP8), +}; + +#ifdef CONFIG_GENERIC_CPU_VULNERABILITIES +void spectre_v2_update_state(unsigned int state, unsigned int methods); +#else +static inline void spectre_v2_update_state(unsigned int state, + unsigned int methods) +{} +#endif + +int spectre_bhb_update_vectors(unsigned int method); + +#endif |