ioapic interrupt routing
The first interrupt controller chip was the Intel 8259 PIC. It had 8 input lines (IRQ0-7) and 1 output line (which connects the interrupt controller with the INTR line of the CPU). When there is an interrupt from one of the devices on its input lines, th, IOAPIC. The Intel I/O Advanced Programmable Interrupt Controller is used to distribute external interrupts in a more advanced manner than that of the standard 8259 PIC. With the I/O APIC, interrupts can be distributed to physical or logical (clusters of)
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 ioapic interrupt routing 相關參考資料
Exadata上CPU相关的设置（感觉已经很好了，除了irqbalance ...
新版本的Exadata可以检查dmesg|grep “Using IOAPIC for interrupt routing”，来确认APIC timer是否正确开启。 . 例如，下面显示在这个1/4配置 ... http://www.lunar2013.com External Interrupts in the x86 system. Part 1. Interrupt ... - Habr
The first interrupt controller chip was the Intel 8259 PIC. It had 8 input lines (IRQ0-7) and 1 output line (which connects the interrupt controller with the INTR line of the CPU). When there is an i... https://habr.com IOAPIC - OSDev Wiki
IOAPIC. The Intel I/O Advanced Programmable Interrupt Controller is used to distribute external interrupts in a more advanced manner than that of the standard 8259 PIC. With the I/O APIC, interrupts ... https://wiki.osdev.org IOAPIC datasheet for web - MIT CSAIL Parallel and ...
https://pdos.csail.mit.edu ioapic(4) - NetBSD Manual Pages
Against this, the architecture can be generally seen as an attempt to solve the interrupt routing efficiency issues in MP systems. There is typically one I/O APIC for ... https://netbsd.gw.com Most (all) Intel-MP compliant SMP boards have the so-called ...
It enables us to route hardware interrupts to multiple CPUs, or to CPU groups. Without an IO-APIC, interrupts from hardware will be delivered only to the CPU ... https://www.kernel.org PCI Interrupt Routing (Navigating the Maze) - FreeBSD
An exception to this rule is that some early APIC systems only route ISA IRQs via their sole I/O APIC and still use an programmable interrupt router and a $PIR ... https://people.freebsd.org PCI interrupt routing III - IOAPIC - Derek
In my previous post PCI interrupt routing II I studied how PCI interrupt route works. But the story is not end yet. as the connection is between PCI ... http://www.gorecursion.com PCI IRQ Routing Table Specification - 小華的部落格
6)APIC有分成Local APIC與I/O APIC，這邊所提到的都是指I/O APIC。 ... 早期VGA卡還在ISA時代的時候, 透過BIOS啟動系統時, 會得到interrupt 第一 ... http://biosengineer.blogspot.c 计算机中断体系三：中断路由- 知乎
前文我们介绍过了PIC和IOAPIC的中断引脚，那么PCI设备是如何连接 .... 时联合Intel提出了PCI Interrupt Routing Table的数据结构，它的作用就是 ... https://zhuanlan.zhihu.com |