RE: [PATCH v8 04/33] x86/traps: add install_system_interrupt_handler()

[Li, Xin3]

> #ifdef CONFIG_X86_64
> static inline void sysvec_setup_fred(unsigned int vector, void (*func)(struct
> pt_regs*)) {
>         ...
> }
> #else
> static inline void sysvec_setup_fred(unsigned int vector, void (*func)(struct
> pt_regs*)) { } #endif
> 
> #define sysvec_install(vector, func) {                                  \
>         sysvec_setup_fred(vector, func);                                \
>         alloc_intr_gate(vector, asm_##func);                            \
> }
> 
> -	alloc_intr_gate(HYPERVISOR_CALLBACK_VECTOR,
> asm_sysvec_xen_hvm_callback);
> +	sysvec_install(HYPERVISOR_CALLBACK_VECTOR,
> sysvec_xen_hvm_callback);

This is a better way, and I will do so in the next iteration.

Thanks!
Xin