diff options
Diffstat (limited to 'arch/x86/include')
| -rw-r--r-- | arch/x86/include/asm/sev-es.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/x86/include/asm/sev-es.h b/arch/x86/include/asm/sev-es.h index 9fbeedaa66ee..59176e8c6b81 100644 --- a/arch/x86/include/asm/sev-es.h +++ b/arch/x86/include/asm/sev-es.h @@ -78,4 +78,23 @@ extern void vc_no_ghcb(void); extern void vc_boot_ghcb(void); extern bool handle_vc_boot_ghcb(struct pt_regs *regs); +#ifdef CONFIG_AMD_MEM_ENCRYPT +extern struct static_key_false sev_es_enable_key; +extern void __sev_es_ist_enter(struct pt_regs *regs); +extern void __sev_es_ist_exit(void); +static __always_inline void sev_es_ist_enter(struct pt_regs *regs) +{ + if (static_branch_unlikely(&sev_es_enable_key)) + __sev_es_ist_enter(regs); +} +static __always_inline void sev_es_ist_exit(void) +{ + if (static_branch_unlikely(&sev_es_enable_key)) + __sev_es_ist_exit(); +} +#else +static inline void sev_es_ist_enter(struct pt_regs *regs) { } +static inline void sev_es_ist_exit(void) { } +#endif + #endif |