david/ipxe
david/ipxe
Archived
1
0
Fork 0
Code
My fork of git://git.ipxe.org/ipxe.git, it is used for my netboot environment at home.
This repository has been archived on 2020-12-06. You can view files and clone it, but cannot push or open issues or pull requests.
5,459 Commits 1 Branch 0 Tags 14 MiB
C 95.2%
Objective-C 1.7%
Assembly 1.3%
Perl 0.7%
Makefile 0.4%
Other 0.6%
2d42d3cff6
Go to file
Michael Brown 2d42d3cff6 [librm] Reduce real-mode stack consumption in virt_call() 
Some PXE NBPs are known to make PXE API calls with very little space
available on the real-mode stack.  For example, the Rembo-ia32 NBP
from some versions of IBM's Tivoli Provisioning Manager for Operating
System Deployment (TPMfOSD) will issue calls with the real-mode stack
placed at 0000:03d2; this is at the end of the interrupt vector table
and leaves only 498 bytes of stack space available before overwriting
the hardware IRQ vectors.  This limits the amount of state that we can
preserve before transitioning to protected mode.

Work around these challenging conditions by preserving everything
other than the initial register dump in a temporary static buffer
within our real-mode data segment, and copying the contents of this
buffer to the protected-mode stack.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
2016-04-29 11:48:39 +01:00
contrib [errdb] Strip platform error code for non-platform-generated errors 2013-04-29 15:36:32 +01:00
src [librm] Reduce real-mode stack consumption in virt_call() 2016-04-29 11:48:39 +01:00
COPYING [legal] Update GPLv2 licence text 2015-02-26 17:59:53 +00:00
COPYING.GPLv2 [legal] Update GPLv2 licence text 2015-02-26 17:59:53 +00:00
COPYING.UBDL [legal] Add support for the Unmodified Binary Distribution Licence 2015-03-02 12:07:14 +00:00
README [doc] Re-add README file 2010-05-28 00:03:47 +01:00

README 

iPXE README File

Quick start guide:

   cd src
   make

For any more detailed instructions, see http://ipxe.org