An Analysis of the Implementation Principles of MSI-X: A Study Based on the Linux Kernel Source Code
Recently, while simulating MSI-X interrupts using QEMU, I found that many people do not fully understand MSI-X interrupts. Below, I will analyze this based on the Linux kernel version 6.1.26 source code. 1. MSI-X Specification in the PCIe Protocol 1.1 MSI-X Capability in PCIe Configuration Space Capability According to the PCIe 3.0 specification, the MSI-X … Read more