中断向量表在Linux的哪里存储？
[英]Where does an interrupt vector table get stored in Linux?
问题描述
使用request_irq将ISR处理程序注册到内核后，是否可以通过修改IVT来将中断线更改为指向其他功能/ ISR？
EDIT: X86 architecture
1 个解决方案
解决方案1
1 2014-12-26 07:11:49
The answer depends on several conditions, such as architecture, real or protected memory mode. 
答案取决于多种条件，例如体系结构，实际或受保护的内存模式。 As far as I know, on x86 architecture, in protected mode there is IDT - Interrupt Descriptor Table where the pointers to Interrupt Service Routines (ISR) are located. 据我所知，在x86体系结构上，在保护模式下有IDT-中断描述符表，在该表中有指向中断服务例程（ISR）的指针。 And the address of IDT is stored in IDTR (Interrup Descriptor Table Register). IDT的地址存储在IDTR（中断描述符表寄存器）中。
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