opengnsys_ipxe

Author	SHA1	Message	Date
Michael Brown	320b072c7a	[pcbios] Support arbitrary splits of the e820 memory map Allow for an arbitrary number of splits of the system memory map via INT 15,e820. Features of the new map-mangling algorithm include: Supports random access to e820 map entries. Requires only sequential access support from the underlying e820 map, even if our caller uses random access. Empty regions will always be stripped. Always terminates with %ebx=0, even if the underlying map terminates with CF=1. Allows for an arbitrary number of hidden regions, with underlying regions split into as many subregions as necessary. Total size increase to achieve this is 193 bytes.	2008-08-18 07:17:41 +01:00
Michael Brown	89349d7fad	Separated out initialisation functions from startup/shutdown functions.	2007-07-03 23:09:56 +01:00
Michael Brown	dca369ddc3	Call hide_etherboot() from startup(), rather than requiring the prefix to do it.	2007-01-14 00:53:56 +00:00
Michael Brown	aaed3d50a8	Some operating systems get a nasty shock if a region of the E820 map seems to start on a non-page boundary. Make life safer by rounding out our edited regions.	2007-01-13 23:38:33 +00:00
Michael Brown	859da6bd32	Allow external code to update hidden memory regions.	2007-01-12 03:13:04 +00:00