This document provides you comprehensive list of URLs for CPU Design and fabrication. Using this information students, companies, universities or businesses can make new CPUs which can run Linux/Unix operating systems.
In olden days, chip vendors were also the IP developers and the EDA tools developers. Nowadays, we have specialized fab companies (TSMC http://www.tsmc.com), IP companies (ARM http://www.arm.com, MIPS http://www.mips.com, Gray Research LLC http://cnets.sourceforge.net/grllc.html ), and tools companies ( Mentor http://www.mentor.com, Cadence http://www.cadence.com, etc.), and combinations of these (Intel). You can buy IP bundled with hardware (Intel), bundled with your tools (EDA companies), or separately (IP providers).
Enter the FPGA vendors (Xilinx http://www.xilinx.com, Altera http://www.altera.com). They have an opportunity to seize upon a unique business model.
VA Linux systems http://www.valinux.com builds the entire system and perhaps in future will design and build CPUs for Linux.
Visit the following CPU design sites: