1 read IRR, ISR, and query words
0 1 0 1 read IMR
0x1 1 high-impedance data bus status
1 x high-impedance data bus status
APIC
1. Concept
APIC (advanced programmable interrupt control) advanced programmable interrupt controller.
It consists of two parts:
Io APIC: located in the south bridge, used to handle various interruptions caused by devices on the bridge. I
The working principle of the interrupt controller between different CPU systems is quite different, this article is the sister of "the analysis of circuit breaker in Linux MIPS64R2 PCI", mainly analyzes the principle, interrupt configuration and processing process of broadwell-de x86_64 APIC. And try to answer the following questions:
Why is the x86 used in the IO-APIC/LAPIC framework, and what is
Document directory
33.3.1 Virtualization of interrupt vector space
33.3.3 examples of handling of external interrupts
Chapter 29 APIC virtualization and virtual interrupts
Object:The vmcs provided des controls that enable the virtualization of interrupts and the advanced programmable interrupt controller (APIC ).
Usage/means:When these controls are used, the processor will emulate your accesses to the
Apic-v, APIC virtualization, is an optimization of the Intel CPU for virtual interrupts and APIC virtualization, and using APIC-V can substantially reduce the number of VM exit results due to APIC access, tracking virtual APIC sta
In Linux, ACPI and APIC-general Linux technology-Linux technology and application information are described below. A friend of mine has a problem with the startup of his notebook system. ubuntu is used. It is said that the startup speed is getting slower. Today, it is completely unable to get in, and the progress bar stops halfway through. I looked at it and press alt + f1 after the progress bar is stopped. The following message is displayed:
Checkin
Half a year five acquisitions Cisco intensive integration for self-redemptionWu MicroCisco, a "takeover guru", recently announced a new deal.The acquisition was Cloudlock, a cloud security company, with a total transaction price of $293 million. This is the fifth takeover deal that Cisco has launched this year.As the world's largest network equipment manufacturer, Cisco
Internet Operating System (IOS) is Cisco's private core software package, which is mainly implemented on Cisco routers and switches. Cisco IOS software uses a set of value-added technologies and features to provide Internet intelligence.Cisco IOS includes a group of superb network technologies, mainly composed of internet devices such as a single router, it is used to provide shared media hub vro modules, v
Overview
This product announcement focuses on Cisco®Catalyst®Cisco IOS on 6500 series switches®See Figure 1 ).
The Cisco Catalyst 6500 series, modular with Cisco IOS software, improves operational efficiency and minimizes downtime through continuous evolution of software infrastructure. By running the modular
WIN8 Cisco VPN 442 Error solution/Error Code 442 Cisco VPN Clinet with Windows 8 when you start using win8, because of work needs to use Cisco VPN Client, however, in win8, the Cisco VPN Client reports a 442 Error and cannot be used. The following Error message is displayed: Error Code 442 while connect to VPN server b
From today onwards, let's show a few of the basic features of Cisco UC, one of the first basic features: Cisco IP Phone.The word Cisco CUCM is bull x!Knowing that the CUCM is a ippbx in a cow's lecture, it provides the phone function of the IP phone to replace the traditional analog phone.In fact, know this is a broken cow, but also in the study of Microsoft's UC
"Introduction" is a Cisco with Stackwise Plus? Catalyst? The 3750-E series switches are an enterprise-class, stand-alone, stackable wiring switch family that supports the deployment of secure converged applications and maximizes investment protection based on the development of network and application requirements. By combining A/V and power over Ethernet (PoE) configuration with a Gigabit Ethernet uplink, the Cis
With the advent of the Internet era, more and more work and information technology-related, in the requirements of the times, each person's development and employment needs to have the knowledge and quality of the Internet, then in this do not test the certificate of the age, Cisco gold content such a high certificate in the end there is no use? The leading-edge education small compilation uses the data to explain the question.Because our large depart
12000 the Cisco router series is very suitable for small and medium-sized enterprises. Here we mainly analyze the performance characteristics of the Cisco router series. In today's information age, enterprise mail has become an essential tool for business communication and communication. With the new routing technology, enterprise mail also has more and more innovative features.
However, compared with diver
After the popularization of broadband, Cisco wireless router settings are frequently faced. So today, I am going to introduce you to the configuration skills of Cisco Wireless routers. I hope this article will teach you more things and bring convenience to your life.
After broadband popularization, many friends who have multiple computers or laptops want to install wireless hotspots at home. Because they se
Cisco 5000 ATMLANE MOUdle password recovery
Password Recovery Procedurefor the Catalyst 5000 atm lane Module
Description
This document describes the password recovery procedure for the Cisco Catalyst 5000 atm lan emulation (LANE) module(WS-X5153/5154/5155/5156/5157/5158/5166 ).Step-by-Step Procedure
In order to recover a password, you must download a recovery image onto the ATM module that will erase the
CISCO router switch SNMPv2 configuration, cisco Router
Cisco router SNMP Configuration
Snmp-server community CQGASPZW-R RO // ro read-only
Snmp-server trap-source Loopback0 // use the loopbackaddress as the source address of the message sent by the trap.
Snmp-server host 50.1.50.3 version 2c CQGASPZW-R udp-port 9006 // configure the SNMP server IP address, SNMP
Basic configurations of Cisco routers and Cisco router configuration commands
En -- enter the privileged mode config t -- enter the global configuration mode wr (OR) -- save the configuration (otherwise, the configuration fails before the power-off)
1. Set the password for entering the vro Console
In global configuration mode, enter line console 0 --- enter the '0' Interface password 123 -- set the password
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