No description
ba8965c039
Removed local APIC INIT (don't worry the APIC and AP are still initialized). The local APIC INIT seemed to be the incorrect thing to do to stop an AP. The Intel Multiprocessor specification indicated that a vector should be set and a START should happen following an INIT. Then AP will execute the instructions pointed to by the vector. There is no vector or start in stop_this_cpu(). This seems to put the AP in an in-between state. In the case of Barcelona the AP's MSRs and PCI register are not accessible by the hardware debugger. The better solution seems to be to just put the AP in a hlt and allow the AP to go into C1. Then APIC managing software running on the BSP can program the AP as needed. Signed-off-by: Marc Jones <marc.jones@amd.com> Reviewed-by: Jordan Crouse <jordan.crouse@amd.com> Acked-by: Ronald G. Minnich <rminnich@gmail.com> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3017 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1 |
||
|---|---|---|
| documentation | ||
| src | ||
| targets | ||
| util | ||
| COPYING | ||
| NEWS | ||
| README | ||
------------------------------------------------------------------------------- LinuxBIOS README ------------------------------------------------------------------------------- LinuxBIOS is a Free Software project aimed at replacing the proprietary BIOS you can find in most of today's computers. It performs just a little bit of hardware initialization and then executes one of many possible payloads, e.g. a Linux kernel. Payloads -------- After the basic initialization of the hardware has been performed, any desired "payload" can be started by LinuxBIOS. Examples include: * A Linux kernel * FILO (a simple bootloader with filesystem support) * GRUB2 (a free bootloader; support is in development) * OpenBIOS (a free IEEE1275-1994 Open Firmware implementation) * Open Firmware (a free IEEE1275-1994 Open Firmware implementation) * SmartFirmware (a free IEEE1275-1994 Open Firmware implementation) * GNUFI (a free, UEFI-compatible firmware) * Etherboot (for network booting and booting from raw IDE or FILO) * ADLO (for booting Windows 2000 or OpenBSD) * Plan 9 (a distributed operating system) * memtest86 (for testing your RAM) Supported Hardware ------------------ LinuxBIOS supports a wide range of chipsets, devices, and mainboards. For details please consult: * http://www.linuxbios.org/Supported_Motherboards * http://www.linuxbios.org/Supported_Chipsets_and_Devices Website and Mailing List ------------------------ Further details on the project, a FAQ, many HOWTOs, news, development guidelines and more can be found on the LinuxBIOS website: http://www.linuxbios.org You can contact us directly on the LinuxBIOS mailing list: http://www.linuxbios.org/Mailinglist Copyright and License --------------------- The copyright on LinuxBIOS is owned by quite a large number of individual developers and companies. Please check the individual source files for details. LinuxBIOS is licensed under the terms of the GNU General Public License (GPL). Some files are licensed under the "GPL (version 2, or any later version)", and some files (mostly those derived from the Linux kernel) are licensed under the "GPL, version 2". For some parts, which were derived from other projects, other (GPL-compatible) licenses may apply. Please check the individual source files for details. This makes the resulting LinuxBIOS images licensed under the GPL, version 2.