robin.thoni/ipxe - git rthoni.com

Commit graph

Autor	SHA1	Nachricht	Datum
Michael Brown	6d2e4e719c	Move uninitialised .data16 variables to .bss16; saves around 2000 bytes of useless zeroes in the final image.	vor 17 Jahren
Michael Brown	26473105cd	On advice of hpa: be more patient with the KBC and SCPA methods; retry in a long loop before giving up on them. Record method which worked and default to that method on next attempt.	vor 17 Jahren
Michael Brown	95c07736cb	Be more aggressive in attempts to enable A20, now that we have the optimisation of only trying to do so when necessary.	vor 17 Jahren
Michael Brown	57b5e227ff	Use fast in-situ test for gate A20 being set, to cut down on the number of (potentially very slow) gateA20_set operations. Die with a fatal error if we are unable to set gate A20; if this fails then we are bound to experience memory corruption at a later stage, and I'd prefer to pick it up early.	vor 17 Jahren
Michael Brown	1ecb9acb87	Fix typo	vor 17 Jahren
Michael Brown	89349d7fad	Separated out initialisation functions from startup/shutdown functions.	vor 17 Jahren
Marty Connor	9b3c4e4d79	Warnings purge: src/arch/i386, src/core/disk.c, ramdisk, autoboot	vor 17 Jahren
Michael Brown	22ed1fbaf1	Add ability to read serial number from SMBIOS	vor 18 Jahren
Michael Brown	b9f99858ab	Make the getmemsize() prototype available in memsizes.h, for code that doesn't want to go to the hassle of processing a full memory map.	vor 18 Jahren
Michael Brown	dca369ddc3	Call hide_etherboot() from startup(), rather than requiring the prefix to do it.	vor 18 Jahren
Michael Brown	0b0e34e667	Provide {get,set}_fbms() in basemem.h. set_fbms() will also update the E820 hidden region.	vor 18 Jahren
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.	vor 18 Jahren
Michael Brown	859da6bd32	Allow external code to update hidden memory regions.	vor 18 Jahren
Michael Brown	c980cdd0aa	Move memmap.h out of arch/i386; it no longer contains anything architecture-dependent and is needed by the ELF code.	vor 18 Jahren
Michael Brown	477a70697a	Added PnP BIOS scanning code, separated out from the UNDI driver	vor 18 Jahren
Michael Brown	f58f193633	Engage brain: since when was zero >= 0x80 ?	vor 18 Jahren
Michael Brown	9c3b4e5b0b	Some BIOSes return 0xe0 for extended characters. Just assume that anything over 0x80 is an extended character.	vor 18 Jahren
Michael Brown	dbb7b30cca	Return ANSI sequences for special keys	vor 18 Jahren
Michael Brown	0aa1223264	Optimise bios_putchar for speed(!) by avoiding two separate real-mode calls. This does make a visible difference when clearing the screen with werase() inside bochs or qemu.	vor 18 Jahren
Michael Brown	8b3a4c9862	Add basic ANSI escape sequence support to BIOS console	vor 18 Jahren
Michael Brown	8bff0f0619	Avoid draining the keyboard buffer during gateA20_set(). It shouldn't technically be necessary, because the "enable A20" command requires only that the keyboard controller is ready to accept input (i.e. that its input buffer is empty), and shouldn't also require that the keyboard is ready to send output (i.e. that its output buffer is also empty). See http://www.smsc.com/main/tools/io-bios/42i.pdf section 3.1 ("Command Invocation") for a justification. gateA20_set() is called on every real-mode transition (in case some idiot piece of external code such as Intel's PXE stack decided it would be fun to re-disable A20), so draining the keyboard buffer means that we end up losing keypresses on some systems. In particular, this makes typing at the command line almost impossible, and causes Etherboot to ignore Ctrl-Alt-Del. We should really implement a gateA20_test() function to verify that gate A20 has been correctly enabled, and think about adding other commonly-used methods such as Fast Gate A20.	vor 18 Jahren
Michael Brown	88e38fa148	We don't actually have a stdio.h header file. Our printf() functions are defined in vsprintf.h. (This may change, since vsprintf.h is a non-standard name, but for now it's the one to use.) There should be no need to include vsprintf.h just for DBG() statements, since include/compiler.h forces it in for a debug build anyway.	vor 18 Jahren
Marty Connor	6ac78f6aff	added stdio.h to includes for DBG compilation	vor 18 Jahren
Marty Connor	56a3ff7202	get rid of compile warnings (except intentionally generated ones)	vor 18 Jahren
Marty Connor	c30623b739	fix DBG macro unknown variable	vor 18 Jahren
Michael Brown	78dd963c1f	Check to see if we've reached the end of the map before attempting to skip past an empty region, otherwise we end up generating an infinitely long e820 map. (Yes, there are real systems that provide e820 maps with a zero-length region at the end...)	vor 18 Jahren
Michael Brown	2138db36ca	Add "addr32" required explicitly by older gas.	vor 18 Jahren
Michael Brown	476d02051f	Windows Server 2003 sulks if we feed it an empty region in base memory as a result of our memory map editing, so strip out any empty regions.	vor 18 Jahren
Michael Brown	d82f71efd0	Also hide base memory region from E820 map.	vor 18 Jahren
Michael Brown	f939ff7cb5	Fix printf format warning error	vor 18 Jahren
Michael Brown	3bd3c13c7b	Why should pushal/popal put the registers on the stack in a logical order?	vor 18 Jahren
Michael Brown	dd75965057	Typo.	vor 18 Jahren
Michael Brown	e4f8d6eed7	Add a "count" field to struct memory_map.	vor 18 Jahren
Michael Brown	986f6ffff1	Define a struct memory_map with a fixed number of entries, rather than requiring each caller to decide how many entries it wants to permit.	vor 18 Jahren
Michael Brown	8110f9b082	Updated to REAL_CODE()	vor 18 Jahren
Michael Brown	e8550035af	Updated to REAL_CODE()	vor 18 Jahren
Michael Brown	c4d688c005	Updated to REAL_CODE().	vor 18 Jahren
Michael Brown	04d6005d77	Update to REAL_CODE()	vor 18 Jahren
Michael Brown	53935e9dc6	Set carry flag before calling INT 15,e801 and INT 15,e820. Ignore carry flag for INT 15,88; the Ralf Brown interrupt list says that CF is unreliable for this call.	vor 18 Jahren
Michael Brown	77a65075a6	Replaced memsizes.c with smaller memmap.c, taking advantage of __data16, and creating a memory map that's easier to work with than the E820 map.	vor 18 Jahren
Michael Brown	5e80847827	Code to install the new E820 mangler (which doesn't require copying down to base memory, since it is now in the base-memory-resident .text16 section).	vor 18 Jahren
Michael Brown	5ec2b2c251	Cope with regions bigger than 4GB. We now split e820 regions around ourselves, rather than just truncating the e820 region. This avoids the worst-case scenario of losing all memory over 4GB. It's more important to get the memory map right now that we're expecting to still be loaded when the OS starts in several situations (e.g. Linux with UNDI driver, any OS with iSCSI/AoE boot, etc.).	vor 18 Jahren
Michael Brown	d822b3d4cd	Define BIOS data segment in bios.h	vor 18 Jahren
Michael Brown	352bf1bda2	Move init.h to gpxe/init.h.	vor 18 Jahren
Michael Brown	832e86246b	gcc is rather over-aggressive about optimising out static data structures even when __atribute__ (( unused )) is correctly set...	vor 18 Jahren
Michael Brown	7b423c0988	Fixes for gcc >= 3.2 from Georg Baum	vor 19 Jahren
Michael Brown	c245ab75ad	Moved disk functions to drivers/bus/bios_disks.c	vor 19 Jahren
Michael Brown	2c36f5e6c7	Save a few bytes by using naturally-sized ints.	vor 19 Jahren
Michael Brown	44c7cc8c12	Standardised debug mechanism in place now.	vor 19 Jahren
Michael Brown	e44e5c7247	compiler.h is now always included on the command line.	vor 19 Jahren

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56 Commits (a6a1052096c72660a24fead2e1e7d580ea4f8bc2)