diff options
Diffstat (limited to 'arch/x86/include/asm/idtentry.h')
| -rw-r--r-- | arch/x86/include/asm/idtentry.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/arch/x86/include/asm/idtentry.h b/arch/x86/include/asm/idtentry.h index cdd41d039cd1..b2442eb0ac2f 100644 --- a/arch/x86/include/asm/idtentry.h +++ b/arch/x86/include/asm/idtentry.h @@ -309,6 +309,19 @@ static __always_inline void __##func(struct pt_regs *regs) __visible void noist_##func(struct pt_regs *regs) /** + * DECLARE_IDTENTRY_VC - Declare functions for the VC entry point + * @vector: Vector number (ignored for C) + * @func: Function name of the entry point + * + * Maps to DECLARE_IDTENTRY_RAW_ERRORCODE, but declares also the + * safe_stack C handler. + */ +#define DECLARE_IDTENTRY_VC(vector, func) \ + DECLARE_IDTENTRY_RAW_ERRORCODE(vector, func); \ + __visible noinstr void ist_##func(struct pt_regs *regs, unsigned long error_code); \ + __visible noinstr void safe_stack_##func(struct pt_regs *regs, unsigned long error_code) + +/** * DEFINE_IDTENTRY_IST - Emit code for IST entry points * @func: Function name of the entry point * @@ -347,6 +360,35 @@ static __always_inline void __##func(struct pt_regs *regs) #define DEFINE_IDTENTRY_DF(func) \ DEFINE_IDTENTRY_RAW_ERRORCODE(func) +/** + * DEFINE_IDTENTRY_VC_SAFE_STACK - Emit code for VMM communication handler + which runs on a safe stack. + * @func: Function name of the entry point + * + * Maps to DEFINE_IDTENTRY_RAW_ERRORCODE + */ +#define DEFINE_IDTENTRY_VC_SAFE_STACK(func) \ + DEFINE_IDTENTRY_RAW_ERRORCODE(safe_stack_##func) + +/** + * DEFINE_IDTENTRY_VC_IST - Emit code for VMM communication handler + which runs on the VC fall-back stack + * @func: Function name of the entry point + * + * Maps to DEFINE_IDTENTRY_RAW_ERRORCODE + */ +#define DEFINE_IDTENTRY_VC_IST(func) \ + DEFINE_IDTENTRY_RAW_ERRORCODE(ist_##func) + +/** + * DEFINE_IDTENTRY_VC - Emit code for VMM communication handler + * @func: Function name of the entry point + * + * Maps to DEFINE_IDTENTRY_RAW_ERRORCODE + */ +#define DEFINE_IDTENTRY_VC(func) \ + DEFINE_IDTENTRY_RAW_ERRORCODE(func) + #else /* CONFIG_X86_64 */ /** @@ -433,6 +475,9 @@ __visible noinstr void func(struct pt_regs *regs, \ # define DECLARE_IDTENTRY_XENCB(vector, func) \ DECLARE_IDTENTRY(vector, func) +# define DECLARE_IDTENTRY_VC(vector, func) \ + idtentry_vc vector asm_##func func + #else # define DECLARE_IDTENTRY_MCE(vector, func) \ DECLARE_IDTENTRY(vector, func) @@ -564,6 +609,11 @@ DECLARE_IDTENTRY_RAW(X86_TRAP_DB, xenpv_exc_debug); /* #DF */ DECLARE_IDTENTRY_DF(X86_TRAP_DF, exc_double_fault); +/* #VC */ +#ifdef CONFIG_AMD_MEM_ENCRYPT +DECLARE_IDTENTRY_VC(X86_TRAP_VC, exc_vmm_communication); +#endif + #ifdef CONFIG_XEN_PV DECLARE_IDTENTRY_XENCB(X86_TRAP_OTHER, exc_xen_hypervisor_callback); #endif |