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225 Commits

Author SHA1 Message Date
Michael Brown adf192f566 Shrink cpu.c and render it useful for our purposes. 2007-07-14 19:12:13 +01:00
Michael Brown f660e8ef58 Add strlen_user() (will be needed for PXE API extensions) 2007-07-06 13:07:10 +01:00
Michael Brown 5e3f2247e0 Kill off lots of warnings in via-velocity.c by correcting these definitions. 2007-07-04 23:36:16 +01:00
Michael Brown e42eba4af4 Use a common base-memory packet buffer for DHCP construction (as used
by PXE and NBI) and UNDI packets (as used by undinet and UNDI).
2007-07-02 18:33:41 +01:00
Michael Brown 8130443f9f Separate out pxe_start_nbp() from pxe_image.c into pxe_call.c
Implement PXENV_RESTART_TFTP.
2007-06-30 14:56:35 +01:00
Michael Brown 1ae549b892 Add our own trivial version of stdarg.h. This makes our build
entirely self-hosted (which avoids problems when building the same
tree on multiple systems - e.g. when you have /home NFS-mounted).

Also saves around 50 bytes in total - not sure why.
2007-06-09 18:11:07 +01:00
Michael Brown ff7d0af585 Provide a buffer in base memory for code to fill with generated DHCP data. 2007-03-22 16:18:07 +00:00
Michael Brown 22ed1fbaf1 Add ability to read serial number from SMBIOS 2007-02-01 20:52:12 +00:00
Michael Brown 7d9267561b Don't call PXENV_STOP_UNDI in the kpxeprefix. This slighy breaks the
clean separation between loading and starting, but does mean that more
PXE stacks survive the process.
2007-01-29 15:21:10 +00:00
Michael Brown 2cf1e33df1 Split bootsector execution code out into bootsector.c.
Added basic El Torito ISO image boot capability
2007-01-29 04:21:38 +00:00
Michael Brown f59281d8f6 Yet more synonyms that people tend to use. 2007-01-26 01:30:16 +00:00
Michael Brown ebb00e032c Misread the definition of the type_of_loader field; it should include a
version.
2007-01-19 15:40:01 +00:00
Michael Brown 5d57cd47a2 Declaring the CPU architecture in the middle of an assembly file is
somewhat redundant, and also causes gas to complain when we include
the profiling code (which uses an i586 instruction).
2007-01-18 18:53:32 +00:00
Michael Brown bd95927386 Accelerate memcpy() by around 32% on large, dword-aligned copies. 2007-01-18 15:18:02 +00:00
Michael Brown a5f6408d8e We can now load an initrd as well as a kernel 2007-01-14 16:09:01 +00:00
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.
2007-01-14 15:32:25 +00:00
Michael Brown 10c9b03cdb Actually, the initrd image should be architecture-independent. 2007-01-14 15:07:11 +00:00
Michael Brown f92e04dea4 Add dummy "initrd" image format, just so that images can be marked as
initrds.
2007-01-14 15:03:39 +00:00
Michael Brown 8a490146bf Copy command line at execution time rather than load time.
Parse command line for "vga=" and "mem=" parameters
2007-01-14 14:29:30 +00:00
Michael Brown 3ccd7335f0 Split bzimage_load into separate functions 2007-01-14 13:36:33 +00:00
Michael Brown 784e10635a Can almost start a kernel now. It dies with "No setup signature found" 2007-01-14 06:36:20 +00:00
Michael Brown b07161f397 Placeholder bzImage support 2007-01-14 04:27:25 +00:00
Michael Brown 7bc03d37a2 Select a PXE network device before starting PXE NBP.
Move pxe_boot() code to pxe_image.c
2007-01-14 02:20:10 +00:00
Michael Brown 0b0e34e667 Provide {get,set}_fbms() in basemem.h.
set_fbms() will also update the E820 hidden region.
2007-01-13 23:57:31 +00:00
Michael Brown bd863e4112 Add header for pxe_boot() 2007-01-13 17:23:44 +00:00
Michael Brown 1d313234b3 Rename copy_user() to memcpy_user(). Add memmove_user() and
userptr_add().
2007-01-12 03:14:15 +00:00
Michael Brown 687c1e3227 Nothing (not even hidemem.c) uses this file! 2007-01-12 02:45:46 +00:00
Michael Brown ddbc60b5ae Whoever put together the grub multiboot.h header is insane. 2007-01-11 21:20:27 +00:00
Michael Brown 200d92c76d Avoid namespace clashes 2007-01-11 19:42:26 +00:00
Michael Brown bcc98c78b8 Added fields present in the documentation but not in the header file. 2007-01-11 19:41:13 +00:00
Michael Brown 9196e9069c Add PHYS_CODE, for use as in __asm__ ( PHYS_CODE ( ... ) ), comparable
to the REAL_CODE interface.
2007-01-11 18:40:46 +00:00
Michael Brown 143e3b84a4 Downloaded from current grub CVS. 2007-01-11 16:22:03 +00:00
Michael Brown ceca6b185c Added user_to_phys() and memset_user(). 2007-01-11 14:27:27 +00:00
Michael Brown c980cdd0aa Move memmap.h out of arch/i386; it no longer contains anything
architecture-dependent and is needed by the ELF code.
2007-01-11 14:08:44 +00:00
Michael Brown c6a4055fae Add phys_to_user() and copy_user(). 2007-01-11 14:01:20 +00:00
Michael Brown fdc97499bf Add device description fields to struct device. 2007-01-10 15:27:48 +00:00
Michael Brown 6b09dd8244 undipci_probe() has to calculate busdevfn anyway, so we may as well pass
it directly to undi_load_pci().
2007-01-09 02:58:07 +00:00
Michael Brown 937289cdc8 Provide storage for an undi_device structure representing the preloaded
UNDI stack.
2007-01-09 02:29:18 +00:00
Michael Brown cea2221737 Use fixed-width fields in struct undi_device, so that pxeprefix.S will be
able to populate the structure.
2007-01-09 01:41:26 +00:00
Michael Brown 239965ff3b Added missing includes 2007-01-08 03:03:42 +00:00
Michael Brown 6115356859 Added missing declarations 2007-01-08 02:51:27 +00:00
Michael Brown aff96c13d2 Added missing include 2007-01-08 02:51:04 +00:00
Michael Brown afc01a1a7f Split UNDI load/unload out into undiload.c. 2007-01-08 02:48:17 +00:00
Michael Brown 6fc75f659b Separated out UNDI ROM location code into undirom.c, and use struct
undi_rom rather than struct pxe_driver.  (This is part of the naming
consistency fixes).
2007-01-08 02:38:10 +00:00
Michael Brown 675fe200e5 Use "struct undi_device" instead of "struct pxe_device", and use the
function prefix "undinet_" and the variable name "undinic" in undinet.c,
so that we can reserve the variable name "undi" for a struct undi_device.

The idea is that we preserve the Etherboot 5.4 convention that the "UNDI"
code refers to our using an underlying UNDI stack, while the "PXE" code
refers to our providing a PXE API.
2007-01-08 02:24:53 +00:00
Michael Brown 477a70697a Added PnP BIOS scanning code, separated out from the UNDI driver 2007-01-05 16:10:03 +00:00
Michael Brown 9780fef360 Partial implementation of UNDI loader caller. 2007-01-05 03:24:39 +00:00
Michael Brown 70acce06e4 This file is no longer used 2007-01-04 19:36:31 +00:00
Michael Brown b12cd68726 Ripped out everything except the ability to send EOI to the PIC. 2007-01-04 19:36:18 +00:00
Michael Brown 0566ab2a2f Added geometry-guessing code based on the partition table 2006-09-08 22:22:03 +00:00
Michael Brown 5a54225aef Added support for INT 13,15; NTLDR calls it (though it may not
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
Michael Brown 6abfaa153b Towards making KEEP_IT_REAL work again.
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
Michael Brown 6fd1bd0510 Added missing check-in 2006-06-09 10:19:17 +00:00
Michael Brown fdf62528ca It's astonishing how long really fundamental bugs can survive without
being noticed...
2006-06-08 15:06:09 +00:00
Michael Brown 191a906338 Fix some remarkably obvious mistakes in pcidirect.h 2006-06-08 14:57:04 +00:00
Michael Brown e4f8d6eed7 Add a "count" field to struct memory_map. 2006-05-25 00:00:30 +00:00
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.
2006-05-24 14:41:27 +00:00
Michael Brown edcf89e2b0 Remove the automatic segment register save and restore; most users of
REAL_CODE() don't need it.
2006-05-24 14:11:36 +00:00
Michael Brown 02cf755f3f Removed REAL_EXEC(); there is no longer any code using it. 2006-05-24 14:10:15 +00:00
Michael Brown 103aff3ae2 Added potentially required "\n\t" on the end of asm_code_str 2006-05-24 14:06:28 +00:00
Michael Brown 7a53d07027 Split out REAL_CODE() from REAL_EXEC(), preparatory to removing REAL_EXEC
completely.
2006-05-24 09:51:04 +00:00
Michael Brown 83d80d9e79 Remove references to obsoleted REAL_CALL from documentation. 2006-05-24 09:16:48 +00:00
Michael Brown 3b525385af Removed REAL_FRAGMENT and REAL_CALL, and left just REAL_EXEC (which is
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
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.
2006-05-24 01:37:46 +00:00
Michael Brown 897313007b Add __{text,data}16_array, since there's no way I can see to make the
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
Michael Brown 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
Michael Brown 0ab92faedb Use typeof(sizeof(...)) to define a size_t. This stops gcc complaining
about format errors for %zX arguments.
2006-05-19 14:51:59 +00:00
Michael Brown 6b6096d28b Strip down i386 PCI configuration space I/O to the bare minimum. A
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
Michael Brown 295e11b2b0 Add INT 13,41 (extensions installation check). LILO's MBR now uses
linear calls to load the MS-DOS boot sector in my test setup.
2006-05-14 23:46:28 +00:00
Michael Brown 4435667a00 Add int13_boot(), to allow booting from INT 13 emulated drives. 2006-05-14 13:44:47 +00:00
Michael Brown b4f941b257 Specify attributes on .text16. 2006-05-14 13:39:27 +00:00
Michael Brown 2421723a15 Rewrote printf and friends to better support standard C semantics. 2006-05-14 02:51:55 +00:00
Michael Brown 5080668704 Provide access to rm_cs and rm_ds from protected-mode code. 2006-05-13 11:45:31 +00:00
Michael Brown dc8d429ec6 Provide a global counter for the number of interrupts hooked. 2006-05-13 11:44:53 +00:00
Michael Brown d822b3d4cd Define BIOS data segment in bios.h 2006-05-13 11:43:07 +00:00
Michael Brown a27defa483 Add flag definitions. 2006-05-13 11:42:07 +00:00
Michael Brown d2c22ec9bb Add INT 13 emulation layer (which provides an interface to gPXE block
devices).
2006-05-13 11:41:36 +00:00
Michael Brown 1ad72e0e79 Add 64-bit byte-swapping operations. 2006-05-13 11:40:39 +00:00
Michael Brown 568cad0ddc (Redoing check-in lost by SourceForge's failure.) 2006-05-13 11:30:03 +00:00
Michael Brown 847f38f4ac (Redoing check-in lost by SourceForge's failure.)
Add method for hooking real-mode interrupt vectors.
2006-05-13 11:19:06 +00:00
Michael Brown f7b963da51 (Redoing check-in lost by SourceForge's failure.)
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
Michael Brown 97d265f8dc (Redoing check-in lost by SourceForge's failure.)
Avoid optimisation errors under -fstrict-aliasing.
2006-05-13 11:10:24 +00:00
Michael Brown f8e087767b Allow access to variables in .text16 as well as .data16. Chained
interrupt vectors, for example, will be easiest to handle if placed in
.text16.
2006-05-06 18:57:31 +00:00
Michael Brown f4429533a6 Added methods for efficiently declaring and accessing variables in
.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
Michael Brown 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
Michael Brown 9fcded3d23 Towards a(nother) new real-mode infrastructure, in which we take
advantage of the fact that we have to have a permanently-resident block
in base memory.
2006-05-02 15:41:21 +00:00
Michael Brown 9c9208a132 Put the TCP connection periodic processing in tcp.c, where it belongs. 2006-04-30 02:08:42 +00:00
Michael Brown 7a82c3eca3 Added missing ssize_t 2006-04-25 12:55:23 +00:00
Michael Brown 832e86246b gcc is rather over-aggressive about optimising out static data structures
even when __atribute__ (( unused )) is correctly set...
2006-04-24 18:31:37 +00:00
Michael Brown 824d6ffa7f Header rearrangement.
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
Michael Brown 510ccb2900 Added __constant_memcpy() based on version in Linux's string.h.
Added memswap().
2006-04-24 15:25:25 +00:00
Michael Brown 7b423c0988 Fixes for gcc >= 3.2 from Georg Baum 2005-05-23 23:47:54 +00:00
Michael Brown 809933d9f7 Split PXE code into preboot, udp, tftp, undi and loader units.
PXE code now compiles without errors (though it won't actually work).
2005-05-23 23:32:56 +00:00
Michael Brown 8becf0f65f Rearranging PXE header files 2005-05-23 22:45:48 +00:00
Michael Brown d3dec7c331 Update to cope with changes in registers.h 2005-05-20 11:23:51 +00:00
Michael Brown 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
Michael Brown 4e87543c74 Synced across updates from Etherboot 5.4 tree 2005-05-19 16:47:19 +00:00
Michael Brown d0c9183903 Doxygenation 2005-05-19 14:51:37 +00:00
Michael Brown dd475a9b8c Add a const to avoid a warning 2005-05-19 13:02:38 +00:00
Michael Brown 9c832a6a69 First version 2005-05-17 13:41:00 +00:00
Michael Brown 479fb900a1 Added copy_phys_to_phys 2005-05-17 13:34:57 +00:00
Michael Brown 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
Michael Brown b94def2088 Include string.h, because we need to define copy_{to,from}_phys 2005-05-09 18:03:14 +00:00
Michael Brown 116f17f605 off_t should be signed. 2005-05-09 14:26:25 +00:00
Michael Brown e3f2aa7b4d Add off_t and physaddr_t, and the copy_{to,from}_phys helper routines. 2005-05-09 13:21:56 +00:00
Michael Brown dc0aa58fb2 Add memcpy 2005-05-09 12:48:00 +00:00
Michael Brown c08671e5fc Missing include 2005-04-27 12:17:09 +00:00
Michael Brown b9e72856b6 Post-relocation functions use the generic table mechanism. 2005-04-27 12:10:24 +00:00
Michael Brown 3dbdeb588f ISA bus driver updated to report devices as present only if a driver
thinks they are.
Other bus drivers modified for consistency.
2005-04-26 12:30:14 +00:00
Michael Brown fcee25024f BIOS floppy handling code moved to where it will really live. 2005-04-25 19:29:55 +00:00
Michael Brown c245ab75ad Moved disk functions to drivers/bus/bios_disks.c 2005-04-18 15:35:39 +00:00
Michael Brown 2c36f5e6c7 Save a few bytes by using naturally-sized ints. 2005-04-18 09:17:27 +00:00
Michael Brown 1a6ca649a2 Made copy_{to,from}_real volatile, so that they don't get optimised away.
Added REAL_FRAGMENT(), because it could conceivably be useful.
2005-04-17 12:17:06 +00:00
Michael Brown e44e5c7247 compiler.h is now always included on the command line. 2005-04-14 11:50:26 +00:00
Michael Brown 3095881c54 For pci_io.c 2005-04-12 16:44:50 +00:00
Michael Brown 87508aa0b2 arch_initialise() is now sufficiently generic that we may as well just
call it initialise() and place it in main.c.  :)
2005-04-10 18:30:34 +00:00
Michael Brown f06e8c9707 Added post-relocation function table. 2005-04-10 18:18:37 +00:00
Michael Brown 44e62317be Add librm_base. 2005-04-10 16:44:49 +00:00
Michael Brown dfb9c44994 hooks.o is now a single object, rather than having separate hooks.o and
hooks_rm.o
2005-04-10 16:44:29 +00:00
Michael Brown 44eee81d11 Don't build relocate() under KEEP_IT_REAL 2005-04-09 17:05:35 +00:00
Michael Brown 97ced37c71 Need to provide sizeof(struct free_base_memory_header) to assembly code. 2005-04-09 16:13:19 +00:00
Michael Brown 0574136c6d Split out from etherboot.h 2005-04-09 15:01:09 +00:00
Michael Brown 9cc90cbb07 First version 2005-04-09 13:32:26 +00:00
Michael Brown 0ff80b477d Merged mcb30-realmode-redesign back to HEAD 2005-04-08 15:01:17 +00:00
Michael Brown 3d6123e69a Initial revision 2005-03-08 18:53:11 +00:00