在VirtualBox中添加键盘的IRQ处理程序

Question

我正在尝试编写简单的内核模块，该模块可以通过将共享的中断处理程序注册到键盘或鼠标中断并在VirtualBox中读取时间戳，从而为用户提供随机数。问题是找不到VirtualBox如何处理键盘或鼠标中断，我应该使用哪个IRQ编号？

CAT /PROC /中断输出：

          CPU0       
  0:         30   IO-APIC   2-edge      timer
  1:         38   IO-APIC   1-edge      i8042
  8:          0   IO-APIC   8-edge      rtc0
  9:          0   IO-APIC   9-fasteoi   acpi
 12:        158   IO-APIC  12-edge      i8042
 14:          0   IO-APIC  14-edge      ata_piix
 15:        769   IO-APIC  15-edge      ata_piix
 16:        329   IO-APIC  16-fasteoi   enp0s8
 18:        713   IO-APIC  18-fasteoi   vmwgfx
 19:       5387   IO-APIC  19-fasteoi   enp0s3
 20:        327   IO-APIC  20-fasteoi   vboxguest
 21:      28865   IO-APIC  21-fasteoi   ahci[0000:00:0d.0], snd_intel8x0
 22:         26   IO-APIC  22-fasteoi   ohci_hcd:usb1
NMI:          0   Non-maskable interrupts
LOC:      82937   Local timer interrupts
SPU:          0   Spurious interrupts
PMI:          0   Performance monitoring interrupts
IWI:          0   IRQ work interrupts
RTR:          0   APIC ICR read retries
RES:          0   Rescheduling interrupts
CAL:          0   Function call interrupts
TLB:          0   TLB shootdowns
TRM:          0   Thermal event interrupts
THR:          0   Threshold APIC interrupts
DFR:          0   Deferred Error APIC interrupts
MCE:          0   Machine check exceptions
MCP:          3   Machine check polls
ERR:          0
MIS:          0
PIN:          0   Posted-interrupt notification event
NPI:          0   Nested posted-interrupt event
PIW:          0   Posted-interrupt wakeup event