5a54225aef
Added support for INT 13,15; NTLDR calls it (though it may not
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actually do anything with the result, since it carried on using us
even when we returned failure).
2006-08-27 01:22:01 +00:00
6abfaa153b
Towards making KEEP_IT_REAL work again.
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Fix bug that caused over-allocation of .text16 and .data16 memory areas
by a factor of 16.
2006-08-24 13:18:05 +00:00
6fd1bd0510
Added missing check-in
2006-06-09 10:19:17 +00:00
fdf62528ca
It's astonishing how long really fundamental bugs can survive without
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being noticed...
2006-06-08 15:06:09 +00:00
191a906338
Fix some remarkably obvious mistakes in pcidirect.h
2006-06-08 14:57:04 +00:00
e4f8d6eed7
Add a "count" field to struct memory_map.
2006-05-25 00:00:30 +00:00
986f6ffff1
Define a struct memory_map with a fixed number of entries, rather than
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requiring each caller to decide how many entries it wants to permit.
2006-05-24 14:41:27 +00:00
edcf89e2b0
Remove the automatic segment register save and restore; most users of
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REAL_CODE() don't need it.
2006-05-24 14:11:36 +00:00
02cf755f3f
Removed REAL_EXEC(); there is no longer any code using it.
2006-05-24 14:10:15 +00:00
103aff3ae2
Added potentially required "\n\t" on the end of asm_code_str
2006-05-24 14:06:28 +00:00
7a53d07027
Split out REAL_CODE() from REAL_EXEC(), preparatory to removing REAL_EXEC
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completely.
2006-05-24 09:51:04 +00:00
83d80d9e79
Remove references to obsoleted REAL_CALL from documentation.
2006-05-24 09:16:48 +00:00
3b525385af
Removed REAL_FRAGMENT and REAL_CALL, and left just REAL_EXEC (which is
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the only one we actually use). This allows REAL_EXEC fragments to
contain proper references to constraints (e.g. "%w0"), rather than having
to force the use of specific registers.
Note that the "num_constraints" parameter is now completely obsolete, and
that we can probably reduce the syntax to something like
__asm__ __volatile__ ( REAL_CODE ( "asm statements" )
: output constraints
: input constraints
: clobber );
which would look much more natural, and avoid the need to always specify
a clobber list.
Add userptr_t to libkir.h, to allow it to at least compile.
2006-05-24 09:14:44 +00:00
77a65075a6
Replaced memsizes.c with smaller memmap.c, taking advantage of __data16,
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and creating a memory map that's easier to work with than the E820 map.
2006-05-24 01:37:46 +00:00
897313007b
Add __{text,data}16_array, since there's no way I can see to make the
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usual __{text,data}16 trick work with arrays. gcc seems to accept the
__asm__ ( asmlabel ) only after the [] of the array declaration, not
before.
2006-05-23 23:42:45 +00:00
d48d0fb1bb
Add the concept of a "user pointer" (similar to the void __user * in
...
the kernel), which encapsulates the information needed to refer to an
external buffer. Under normal operation, this can just be a void *
equivalent, but under -DKEEP_IT_REAL it would be a segoff_t equivalent.
Use this concept to avoid the need for bounce buffers in int13.c,
which reduces memory usage and opens up the possibility of using
multi-sector reads.
Extend the block-device API and the SCSI block device implementation
to support multi-sector reads.
Update iscsi.c to use user buffers.
Move the obsolete portions of realmode.h to old_realmode.h.
MS-DOS now boots an order of magnitude faster over iSCSI (~10 seconds
from power-up to C:> prompt in bochs).
2006-05-19 15:06:51 +00:00
0ab92faedb
Use typeof(sizeof(...)) to define a size_t. This stops gcc complaining
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about format errors for %zX arguments.
2006-05-19 14:51:59 +00:00
6b6096d28b
Strip down i386 PCI configuration space I/O to the bare minimum. A
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typical build will now include 880 bytes of PCI support code, compared to
2327 bytes in Etherboot 5.4.
(There is a slight cost of around 5 extra bytes per access to a
non-constant config space address; this should be an overall win.
Driver-specific accesses will usually be to constant addresses, for
which there is no additional cost.)
2006-05-17 01:12:11 +00:00
295e11b2b0
Add INT 13,41 (extensions installation check). LILO's MBR now uses
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linear calls to load the MS-DOS boot sector in my test setup.
2006-05-14 23:46:28 +00:00
4435667a00
Add int13_boot(), to allow booting from INT 13 emulated drives.
2006-05-14 13:44:47 +00:00
b4f941b257
Specify attributes on .text16.
2006-05-14 13:39:27 +00:00
2421723a15
Rewrote printf and friends to better support standard C semantics.
2006-05-14 02:51:55 +00:00
5080668704
Provide access to rm_cs and rm_ds from protected-mode code.
2006-05-13 11:45:31 +00:00
dc8d429ec6
Provide a global counter for the number of interrupts hooked.
2006-05-13 11:44:53 +00:00
d822b3d4cd
Define BIOS data segment in bios.h
2006-05-13 11:43:07 +00:00
a27defa483
Add flag definitions.
2006-05-13 11:42:07 +00:00
d2c22ec9bb
Add INT 13 emulation layer (which provides an interface to gPXE block
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devices).
2006-05-13 11:41:36 +00:00
1ad72e0e79
Add 64-bit byte-swapping operations.
2006-05-13 11:40:39 +00:00
568cad0ddc
(Redoing check-in lost by SourceForge's failure.)
2006-05-13 11:30:03 +00:00
847f38f4ac
(Redoing check-in lost by SourceForge's failure.)
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Add method for hooking real-mode interrupt vectors.
2006-05-13 11:19:06 +00:00
f7b963da51
(Redoing check-in lost by SourceForge's failure.)
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Use .text16.data section with "aw" attributes, to avoid section type
conflicts when placing both code and data into .text16.
Add __from_{text16,data16}.
2006-05-13 11:11:55 +00:00
97d265f8dc
(Redoing check-in lost by SourceForge's failure.)
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Avoid optimisation errors under -fstrict-aliasing.
2006-05-13 11:10:24 +00:00
f8e087767b
Allow access to variables in .text16 as well as .data16. Chained
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interrupt vectors, for example, will be easiest to handle if placed in
.text16.
2006-05-06 18:57:31 +00:00
f4429533a6
Added methods for efficiently declaring and accessing variables in
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.data16. librm will need to supply "char *data16", i.e. the virtual
address of the start of .data16.
2006-05-04 17:00:20 +00:00
9e1dd6402d
<name>_size variable is no longer needed, since we don't copy the code.
...
However, it's worth adding a .size directive so that objdump reports the
correct sizes for the code fragments.
2006-05-02 16:38:46 +00:00
9fcded3d23
Towards a(nother) new real-mode infrastructure, in which we take
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advantage of the fact that we have to have a permanently-resident block
in base memory.
2006-05-02 15:41:21 +00:00
9c9208a132
Put the TCP connection periodic processing in tcp.c, where it belongs.
2006-04-30 02:08:42 +00:00
7a82c3eca3
Added missing ssize_t
2006-04-25 12:55:23 +00:00
832e86246b
gcc is rather over-aggressive about optimising out static data structures
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even when __atribute__ (( unused )) is correctly set...
2006-04-24 18:31:37 +00:00
824d6ffa7f
Header rearrangement.
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I want to get to the point where any header in include/ reflects a
standard user-level header (e.g. a POSIX header), while everything that's
specific to gPXE lives in include/gpxe/. Headers that reflect a Linux
header (e.g. if_ether.h) should also be in include/gpxe/, with the same
name as the Linux header and, preferably, the same names used for the
definitions.
2006-04-24 15:42:49 +00:00
510ccb2900
Added __constant_memcpy() based on version in Linux's string.h.
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Added memswap().
2006-04-24 15:25:25 +00:00
7b423c0988
Fixes for gcc >= 3.2 from Georg Baum
2005-05-23 23:47:54 +00:00
809933d9f7
Split PXE code into preboot, udp, tftp, undi and loader units.
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PXE code now compiles without errors (though it won't actually work).
2005-05-23 23:32:56 +00:00
8becf0f65f
Rearranging PXE header files
2005-05-23 22:45:48 +00:00
d3dec7c331
Update to cope with changes in registers.h
2005-05-20 11:23:51 +00:00
5231b858c9
Don't use anonymous entries in a struct; it seems to aggravate gcc 3.4.3.
2005-05-20 11:22:09 +00:00
4e87543c74
Synced across updates from Etherboot 5.4 tree
2005-05-19 16:47:19 +00:00
d0c9183903
Doxygenation
2005-05-19 14:51:37 +00:00
dd475a9b8c
Add a const to avoid a warning
2005-05-19 13:02:38 +00:00
9c832a6a69
First version
2005-05-17 13:41:00 +00:00
479fb900a1
Added copy_phys_to_phys
2005-05-17 13:34:57 +00:00
3bbf5f28a3
Use __unused instead of __used for static data structures.
...
Remove compiler.h defines from osdep.h
2005-05-17 12:16:28 +00:00
b94def2088
Include string.h, because we need to define copy_{to,from}_phys
2005-05-09 18:03:14 +00:00
116f17f605
off_t should be signed.
2005-05-09 14:26:25 +00:00
e3f2aa7b4d
Add off_t and physaddr_t, and the copy_{to,from}_phys helper routines.
2005-05-09 13:21:56 +00:00
dc0aa58fb2
Add memcpy
2005-05-09 12:48:00 +00:00
c08671e5fc
Missing include
2005-04-27 12:17:09 +00:00
b9e72856b6
Post-relocation functions use the generic table mechanism.
2005-04-27 12:10:24 +00:00
3dbdeb588f
ISA bus driver updated to report devices as present only if a driver
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thinks they are.
Other bus drivers modified for consistency.
2005-04-26 12:30:14 +00:00
fcee25024f
BIOS floppy handling code moved to where it will really live.
2005-04-25 19:29:55 +00:00
c245ab75ad
Moved disk functions to drivers/bus/bios_disks.c
2005-04-18 15:35:39 +00:00
2c36f5e6c7
Save a few bytes by using naturally-sized ints.
2005-04-18 09:17:27 +00:00
1a6ca649a2
Made copy_{to,from}_real volatile, so that they don't get optimised away.
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Added REAL_FRAGMENT(), because it could conceivably be useful.
2005-04-17 12:17:06 +00:00
e44e5c7247
compiler.h is now always included on the command line.
2005-04-14 11:50:26 +00:00
3095881c54
For pci_io.c
2005-04-12 16:44:50 +00:00
87508aa0b2
arch_initialise() is now sufficiently generic that we may as well just
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call it initialise() and place it in main.c. :)
2005-04-10 18:30:34 +00:00
f06e8c9707
Added post-relocation function table.
2005-04-10 18:18:37 +00:00
44e62317be
Add librm_base.
2005-04-10 16:44:49 +00:00
dfb9c44994
hooks.o is now a single object, rather than having separate hooks.o and
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hooks_rm.o
2005-04-10 16:44:29 +00:00
44eee81d11
Don't build relocate() under KEEP_IT_REAL
2005-04-09 17:05:35 +00:00
97ced37c71
Need to provide sizeof(struct free_base_memory_header) to assembly code.
2005-04-09 16:13:19 +00:00
0574136c6d
Split out from etherboot.h
2005-04-09 15:01:09 +00:00
9cc90cbb07
First version
2005-04-09 13:32:26 +00:00
0ff80b477d
Merged mcb30-realmode-redesign back to HEAD
2005-04-08 15:01:17 +00:00
3d6123e69a
Initial revision
2005-03-08 18:53:11 +00:00
Michael Brown