david/ipxe
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959 Commits

Author SHA1 Message Date
Michael Brown
4c418d2100 Use net_device_operations structure and netdev_nullify() to allow for 
safe dropping of the netdev ref by the driver while other refs still
exist.

Add netdev_irq() method.  Net device open()/close() methods should no
longer enable or disable IRQs.

Remove rx_quota; it wasn't used anywhere and added too much complexity
to implementing correct interrupt-masking behaviour in pxe_undi.c.
 2007-07-07 16:43:39 +01:00
Holger Lubitz
c7549bcebe convert to zalloc 2007-07-06 20:19:06 +02:00
Holger Lubitz
bb61774ee4 convert to zalloc 2007-07-06 20:19:06 +02:00
Michael Brown
311637503d Merge branch 'master' of rom.etherboot.org:/pub/scm/gpxe 2007-07-06 13:31:58 +01:00
Michael Brown
f660e8ef58 Add strlen_user() (will be needed for PXE API extensions) 2007-07-06 13:07:10 +01:00
Marty Connor
74a1c77820 Merge branch 'master' of /pub/scm/gpxe 2007-07-06 08:04:55 -04:00
Marty Connor
28d8d828b3 Rename .lilo extension to .lkrn and updated dependencies 2007-07-06 08:04:06 -04:00
Michael Brown
763a3eab8a Add .pdsk target (padded .dsk, suitable for qemu). 2007-07-05 23:37:17 +01:00
Michael Brown
fbda4837b0 Allocate heap at first usage, rather than assuming we can fit it in 
below _text.  This should help with the gPXE-on-gPXE-via-PXE case.
 2007-07-05 22:30:34 +01:00
Michael Brown
07ea125213 Use partition type 0xeb ("EtherBoot"), to avoid any attempts to mount 
the Etherboot partition.
 2007-07-05 14:20:55 +01:00
Michael Brown
6e082c9b81 Add .usb target 2007-07-05 14:15:43 +01:00
Michael Brown
a0f078d7f5 Working with multi-sector reads 2007-07-05 13:30:49 +01:00
Michael Brown
66208dd65d hdprefix that works for LBA only 2007-07-05 12:58:16 +01:00
Michael Brown
839960276d Miscellaneous efficiency improvements, and extend read_sectors to 
handle multiple sectors.
 2007-07-05 12:36:39 +01:00
Michael Brown
3c2d50e5de Added active partition locator, and simple MBR built using it. 2007-07-05 00:21:01 +01:00
Michael Brown
738ebaf4a5 Revert "Added master boot record capable of locating active partition" 
This reverts commit 844d088c51.
 2007-07-05 00:20:04 +01:00
Michael Brown
844d088c51 Added master boot record capable of locating active partition 
(including logical partitions).
 2007-07-05 00:05:26 +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
ac69b85adb UNDI loader entry point implemented; seems to work. 2007-07-04 03:23:02 +01:00
Michael Brown
1ecb9acb87 Fix typo 2007-07-04 02:25:07 +01:00
Michael Brown
dca470cb21 Add (untested) UNDI loader C-level implementation. 2007-07-03 23:41:35 +01:00
Michael Brown
7db6b4b79c Merge branch 'master' of rom.etherboot.org:/pub/scm/gpxe 2007-07-03 23:10:16 +01:00
Michael Brown
89349d7fad Separated out initialisation functions from startup/shutdown functions. 2007-07-03 23:09:56 +01:00
Marty Connor
79238335b0 remove obsolete file: src/arch/i386/prefix/int19exit.c 2007-07-03 16:24:06 -04:00
Michael Brown
cbd4542dc0 Merge branch 'master' of rom.etherboot.org:/pub/scm/gpxe 2007-07-03 21:09:26 +01:00
Marty Connor
9b3c4e4d79 Warnings purge: src/arch/i386, src/core/disk.c, ramdisk, autoboot 2007-07-03 16:02:15 -04:00
Michael Brown
fae10a7ca1 We don't actually use the reset functions anywhere, and nothing really 
provides them.
 2007-07-03 20:34:51 +01:00
Michael Brown
2dc8ed1eb8 Work around Etherboot 5.4 bug when multiple packets are received. 2007-07-03 15:53:29 +01:00
Michael Brown
0958726ebb It's not just Etherboot that fails to generate TX completions. 2007-07-03 14:43:57 +01:00
Michael Brown
adb3dd03e5 Document TX completion bug. 2007-07-03 13:17:58 +01:00
Michael Brown
071356d976 Ensure that pxe_netdev is set before starting up PXE NBP. 2007-07-03 00:02:26 +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
5f17089b14 pxe_netdev now holds a reference to the network device. 
Use generic fields in struct device_description rather than assuming
that the struct device * is contained within a pci_device or
isapnp_device; this assumption is broken when using the undionly
driver.

Add PXENV_UNDI_SET_STATION_ADDRESS.
 2007-07-02 17:43:32 +01:00
Michael Brown
d5451d210c Add ability to resolve relative symbols as well as locate absolute ones. 2007-06-30 22:59:15 +01:00
Michael Brown
8f6a4e8140 Add gdbsym.c object to help with running gdb-to-qemu 2007-06-30 22:43:31 +01:00
Michael Brown
e1646b4080 Place the actual version string in .data16, rather than just the 
pointer to it.
 2007-06-30 21:36:54 +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
d71b116f54 Fix stack on return from PXE NBP so that we can return properly. 2007-06-28 23:37:49 +01:00
Michael Brown
045fb24557 Use internal real-mode stack from non-returnable prefixes 2007-06-28 21:56:14 +01:00
Michael Brown
00473f0952 Revert "Move stack to below 0x7c00; leaving it at the default location" 
This reverts commit 03ca71c38d.
 2007-06-28 21:50:36 +01:00
Michael Brown
03ca71c38d Move stack to below 0x7c00; leaving it at the default location 
(0x7ef4) tends to really screw up anything that loads at 0x7c00...
 2007-06-28 21:15:47 +01:00
Michael Brown
f77815f2b1 Kill off hotplug.h and just make net devices normal reference-counted 
structures.

DHCP still broken and #if 0'd out.
 2007-06-27 14:48:31 +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
3e2c6b6736 pkbuff->iobuf changeover 
Achieved via Perl using:

perl -pi -e 's/pk_buff/io_buffer/g; s/Packet buffer/I\/O buffer/ig; ' \
	-e 's/pkbuff\.h/iobuf.h/g; s/pkb_/iob_/g; s/_pkb/_iob/g; ' \
	-e 's/pkb/iobuf/g; s/PKB/IOB/g;'
 2007-05-19 18:39:40 +00:00
Michael Brown
0d9b3e2dd2 Add 32-bit support. 
Generate DHCP data block for images.
 2007-03-22 16:18:46 +00:00
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
160e66dbb9 Typo 2007-03-20 18:55:00 +00:00
Michael Brown
5578d3b2de Support 32-bit (linear) NBI images. We don't yet provide a bootp data 
block, so first32.c dies immediately.
 2007-03-14 00:39:12 +00:00
Michael Brown
37127ea90c Added .nbi as a format. 2007-03-11 00:57:26 +00:00
Michael Brown
628f6eddcc Make _load_size accurately reflect the number of bytes in the actual 
image file.
 2007-03-11 00:54:35 +00:00
Michael Brown
520d9c36af Updated ISAPnP, EISA, MCA and ISA buses to current device model. 
ISA 3c509 is currently non-functional, although the EISA (3c509-eisa) and
MCA (3c529) variants should build OK.

None of this code is yet tested.
 2007-03-10 18:08:33 +00:00
Michael Brown
22ed1fbaf1 Add ability to read serial number from SMBIOS 2007-02-01 20:52:12 +00:00
Michael Brown
f06059ab97 More assertions 2007-02-01 02:18:22 +00:00
Michael Brown
c650c8c84a Also print out stack pointer (with optional stack dump) 2007-02-01 02:17:59 +00:00
Michael Brown
406b20a64d Assert that division result is correct 2007-01-31 23:58:52 +00:00
Michael Brown
c789e8640b Added __umoddi3 2007-01-31 22:26:14 +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
b3b6b25aeb Handle (64-bit) / (32-bit) = (64-bit), i.e. one step beyond that 
provided by the divl instruction.
 2007-01-28 19:34:17 +00:00
Michael Brown
f59281d8f6 Yet more synonyms that people tend to use. 2007-01-26 01:30:16 +00:00
Michael Brown
6a765fdc15 Use base "0" in strtoul for consistency with "mem=" 2007-01-24 22:54:08 +00:00
Michael Brown
99cb46943f "vga=" is specified in decimal, not hex. 2007-01-22 23:56:24 +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
73b09ecba6 Use stdio.h instead of vsprintf.h 2007-01-19 01:13:12 +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
544fa25928 Rename e{malloc,realloc,free} to u{malloc,realloc,free}, to more obviously 
reflect the fact that they allocate and deallocate user memory (i.e.
things reached through a userptr_t).
 2007-01-16 08:36:42 +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
97a3037f76 Can start a Linux kernel directly (albeit with no initrd support) 2007-01-14 12:34:35 +00:00
Michael Brown
3cbf0db0a3 Remove some references to no-longer-existent source files. 
Add a path for isolinux.bin that is correct on my system; hopefully it
will work on others too.
 2007-01-14 11:52:22 +00:00
Michael Brown
b04b0ddc31 .lilo and derived targets (e.g. .iso) now load properly. 2007-01-14 11:50:44 +00:00
Michael Brown
77d280968a Obsoleted by arch/i386/image/multiboot.c 2007-01-14 11:45:28 +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
797edf28b7 Replace image->entry with image->priv. 2007-01-14 04:04:28 +00:00
Michael Brown
3bdbfe1f00 Mostly updated. Won't work yet. 2007-01-14 03:49:07 +00:00
Michael Brown
644f3674e6 Obsolete for some time 2007-01-14 02:24:41 +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
55e6d7b70c Use debug autocolourisation. 
Shut down before jumping to the multiboot image.
 2007-01-14 00:57:43 +00:00
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
ece4ff929e Use _text, rather than assuming _text==0. 2007-01-14 00:03:07 +00:00
Michael Brown
f547f148d3 Use {get,set}_fbms() so that allocated base memory is correctly hidden. 2007-01-14 00:01:16 +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
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
d0f4e9a54b Add some trace messages for important events 2007-01-13 17:54:41 +00:00
Michael Brown
f11900a9c6 I prefer IMAGE_XXX to XXX_IMAGE. 
Add IMAGE_PXE to use the new image format framework.  "kernel pxelinux.0"
now works.
 2007-01-13 17:28:51 +00:00
Michael Brown
bd863e4112 Add header for pxe_boot() 2007-01-13 17:23:44 +00:00
Michael Brown
4b77061881 Pick up the return status code from the correct place now that we 
don't overwrite the parameter block until *after* the debug code.
 2007-01-13 16:55:57 +00:00
Michael Brown
5817c9f114 When an UNDI API call fails, print everything there is to know about it. 2007-01-13 16:53:55 +00:00
Michael Brown
6a3c76c8e0 Always send EOI. We can't feasibly share interrupts (since we have no 
clue what the "previous" interrupt handler will do, which could range
from "just an iret" to "disable the interrupt"), and that means that
we have to take responsibility for ACKing all interrupts.  Joy.
 2007-01-13 14:45:26 +00:00
Michael Brown
86171c53f4 Damn Broadcom and their damned incorrect assumptions about x86 memory 
allocation.
 2007-01-13 01:48:12 +00:00
Michael Brown
bcd6ca3291 Place multiboot tables in base memory; at least some OSes won't see it 
if we don't.
 2007-01-12 16:25:05 +00:00
Michael Brown
0f29e0e46e Ensure multiboot modules are in ascending order of memory start 
address, to work around OS bugs.
 2007-01-12 12:03:19 +00:00
Michael Brown
53e948bba8 Fix the memory map. 2007-01-12 11:38:04 +00:00
Michael Brown
6fdc6c81a6 Force probing of multiboot before ELF. 2007-01-12 08:10:35 +00:00
Michael Brown
9debfed07a Place command-line inline, to save on memory allocation hassles. 2007-01-12 05:26:19 +00:00
Michael Brown
77b7640af4 Fix the only bug (which was to use DBGC() in place of DBG()!) and add 4kB 
alignment.
 2007-01-12 03:28:03 +00:00
Michael Brown
45ec9c907e First version of an external memory allocator (not tested) 2007-01-12 03:15:29 +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
859da6bd32 Allow external code to update hidden memory regions. 2007-01-12 03:13:04 +00:00
Michael Brown
687c1e3227 Nothing (not even hidemem.c) uses this file! 2007-01-12 02:45:46 +00:00
Michael Brown
39a8ed827c Long since obsoleted by arch/i386/scripts/i386.lds 2007-01-12 02:43:10 +00:00
Michael Brown
2e088d9afc Obsoleted by arch/i386/interface/pxe/pxe_call.c 2007-01-12 02:42:14 +00:00
Michael Brown
f81bf3bc52 We *do* have a __data16_array after all! 2007-01-12 02:37:47 +00:00
Michael Brown
e4c6418ac0 We may be required to page-align modules, so let's make sure we catch 
it if we don't.
 2007-01-12 00:09:16 +00:00
Michael Brown
f59ad50504 Provide registration mechanism for loaded images, so that we can e.g. 
refer to them by name from the command line, or build them into a
multiboot module list.

Use setting image->type to disambiguate between "not my image" and "bad
image"; this avoids relying on specific values of the error code.
 2007-01-11 23:43:29 +00:00
Michael Brown
f31d91bce5 Populate multiboot information structure before calling OS. 2007-01-11 21:21:02 +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
dc51af59a4 Capable of starting a multiboot kernel (albeit without the multiboot 
information table yet).
 2007-01-11 18:41:15 +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
d488a172eb Capable of loading a multiboot image into memory 2007-01-11 17:44:42 +00:00
Michael Brown
143e3b84a4 Downloaded from current grub CVS. 2007-01-11 16:22:03 +00:00
Michael Brown
4fc9333159 Move include/image.h to include/gpxe/image.h 2007-01-11 16:04:36 +00:00
Michael Brown
7ad1c2eaa8 Removed the Etherboot-specific ELF-image code and replaced it with a 
generic ELF loader, to be used by the multiboot code.
 2007-01-11 14:44:03 +00:00
Michael Brown
3634e705b7 Remove osloader.c and replace with a prep_segment() that uses userptr_t 
and get_memmap() in image/segment.c
 2007-01-11 14:32:26 +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
e2dcd05b67 Update buffer-handling code to enable expandable buffers. 2007-01-11 03:50:47 +00:00
Michael Brown
fdc97499bf Add device description fields to struct device. 2007-01-10 15:27:48 +00:00
Michael Brown
489a4004d7 Give UNDI device a more meaningful name. 2007-01-10 05:52:04 +00:00
Michael Brown
dad5274522 Add "name" field to struct device to allow human-readable hardware device 
names.

Add "dev" pointer in struct net_device to tie network interfaces back to a
hardware device.

Force natural alignment of data types in __table() macros.  This seems to
prevent gcc from taking the unilateral decision to occasionally increase
their alignment (which screws up the table packing).
 2007-01-10 04:22:09 +00:00
Michael Brown
c65fae2475 Add RX quotas to the net device poll() method. This avoids the problem 
of alloc_pkb() exhaustion when e.g. an iSCSI-booted DOS session is left
idle for a long time at the C:\ prompt and builds up a huge packet
backlog.
 2007-01-09 21:47:01 +00:00
Michael Brown
18e5353bed Rename pkb_available() to pkb_tailroom() for consistency with Linux's 
skb_tailroom().  Add pkb_headroom().
 2007-01-09 20:56:31 +00:00
Michael Brown
b7fcfe8ece Added net device TX queue; this will be needed to support the PXE UNDI API 
(which will need us to wait for TX completions).

Added debug autocolourisation to netdevice.c
 2007-01-09 20:18:31 +00:00
Michael Brown
3c2cc59d25 Added ability to break ISR processing over several calls to poll(). 
This will allow us to implement RX quotas.
 2007-01-09 17:04:10 +00:00
Michael Brown
aa7bda7b47 Send EOI after enabling interrupt, in case the device had asserted IRQ 
to the PIC while it was disabled.
 2007-01-09 14:53:19 +00:00
Michael Brown
a2ffe8c123 Allow boot sector to completely destroy real-mode stack, but still 
manage to return control.
 2007-01-09 14:13:59 +00:00
Michael Brown
a9369bb503 Leave protected-mode return address on PM stack when issuing a 
real_call(), rather than moving it to the RM stack and back again.
This allows the real-mode function to completely destroy the stack
contents, provided that it manages to return to real_call().
 2007-01-09 14:13:06 +00:00
Michael Brown
2738bdf74b Obsoleted by drivers/net/undionly.c 2007-01-09 03:22:11 +00:00
Michael Brown
d606edb41d Added UNDI root bus driver (which saves including all the PCI bus code, 
UNDI ROM code etc. when you just want a "undi.kpxe"-type image).

This driver cannot be used in conjunction with any other driver (it will
crash), or in any other format than .kpxe (it just won't find any network
devices).
 2007-01-09 03:20:22 +00:00
Michael Brown
159930862f Added missing call to undinet_remove() 2007-01-09 03:08:01 +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
ed44e3730d Avoid erasing non-existent signatures in undi_unload() 2007-01-09 02:53:24 +00:00
Michael Brown
a2be828a33 Avoid leaving preloaded_undi with invalid PXENV+/!PXE structure 
addresses if the signature checks fail.
 2007-01-09 02:52:28 +00:00
Michael Brown
697bcc9d24 Since we now always unload the base code stack (even if we keep UNDI), 
we can never return to the PXE stack and must always use INT 18.
 2007-01-09 02:46:58 +00:00
Michael Brown
f2f492a536 If preloaded device matches, use that rather than going via the UNDI 
loader.
 2007-01-09 02:32:06 +00:00
Michael Brown
2436dac281 Populate preloaded_undi device when applicable. 2007-01-09 02:29:54 +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
47222d5ed8 Call PXENV_UNDI_GET_NIC_TYPE to identify NIC physical device. 
Record all information required for populating a struct undi_device.

Make debugging output more human-readable.
 2007-01-09 01:42:28 +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
fbdebac5f4 Copy pxelinux's shutdown sequence: use UNLOAD_STACK without STOP_BASE, 
and call UNDI_SHUTDOWN first to make sure the NIC is in a safe state.
 2007-01-08 05:06:26 +00:00
Michael Brown
8f8af10b22 New strategy: always stop both base code and UNDI. Always free base code 
memory (unless we get an error while stopping the base code).  Leave UNDI
resident (though stopped) for .kpxe.

Still need to add code to record the device identification parameters
prior to stopping UNDI.
 2007-01-08 03:48:26 +00:00
Michael Brown
075d79f6d4 Checking in obsolete but working memory-scanning code just for the record 2007-01-08 03:45:00 +00:00
Michael Brown
67e824b539 Neaten up debug messages 2007-01-08 03:42:19 +00:00
Michael Brown
f08093b0d9 Remove spurious debug message 2007-01-08 03:37:32 +00:00
Michael Brown
f0edd11c7d Now split out into undirom.c and undiload.c 2007-01-08 03:35:51 +00:00
Michael Brown
07e5d4e3dc Added any-PCI-device UNDI driver 2007-01-08 03:34:47 +00:00
Michael Brown
66f7bcc785 Tidied up debug messages 2007-01-08 03:34:06 +00:00
Michael Brown
a6ba48e51e Added debugging statements 2007-01-08 03:04:54 +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
359c888aec Remove obsolete includes 2007-01-08 02:39:56 +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
36c1e1aa57 Renamed undi.c to undinet.c. (undi.c will become the UNDI PCI driver) 2007-01-08 02:02:07 +00:00
Michael Brown
234d81728a Obsolete 2007-01-08 02:00:55 +00:00
Michael Brown
d3558fdd3a Remove accidentally checked-in code 2007-01-07 19:05:28 +00:00
Michael Brown
85a41b25fe Move START_UNDI, UNDI_STARTUP, UNDI_INITIALIZE and 
UNDI_GET_INFORMATION calls into drivers/net/undi.c.  undi_probe() now
gets given a pxe_device representing a PXE stack that has been loaded
into memory but not initialised in any way.
 2007-01-07 19:02:17 +00:00
Michael Brown
23cb837951 Remember to enable/disable the interrupt at the PIC. 
Handle failures in undi_open() properly.
 2007-01-07 13:31:39 +00:00
Michael Brown
9ab5c0dde7 Remove redundant debug message 2007-01-05 16:15:50 +00:00
Michael Brown
fa9055197d UNDI loader routine now works 2007-01-05 16:11:05 +00:00
Michael Brown
477a70697a Added PnP BIOS scanning code, separated out from the UNDI driver 2007-01-05 16:10:03 +00:00
Marty Connor
7dee2556f4 Fixed typo 2007-01-05 16:09:47 +00:00
Michael Brown
9780fef360 Partial implementation of UNDI loader caller. 2007-01-05 03:24:39 +00:00
Michael Brown
0638945c7e Add PXE driver-scanning code, capable of locating all PXE ROMs in a system 
and matching them up to (e.g. PCI) devices.
 2007-01-05 01:52:06 +00:00
Michael Brown
ef50ea0b2b Renamed undi_net.c to undi.c. 2007-01-04 19:43:35 +00:00
Michael Brown
6cf488dcf7 Obsolete; net driver functionality is now in undi_net.c and bus driver 
functionality is now in pxebus.c.  (Not all bus functionality is ported
across yet.)
 2007-01-04 19:42:05 +00:00
Michael Brown
7e07dfb2f4 Added PXE bus driver (with support only for using PXE structures found 
lying about in memory, not for loading from ROM), and UNDI net driver.
 2007-01-04 19:38:34 +00:00
Michael Brown
e28db95de6 Obsolete 2007-01-04 19:37:31 +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
de2fc50f4c Add as a separate file so that we can do "make bin/xxxx.kpxe" rather than 
having to edit PXELOADER_KEEP_ALL as a config option.
 2007-01-04 19:35:10 +00:00
Michael Brown
290c5ee779 Don't automatically call gateA20_set() when returning from a real-mode 
call.
 2007-01-04 04:32:18 +00:00
Michael Brown
f58f193633 Engage brain: since when was zero >= 0x80 ? 2006-12-21 05:15:26 +00:00
Michael Brown
9c3b4e5b0b Some BIOSes return 0xe0 for extended characters. Just assume that 
anything over 0x80 is an extended character.
 2006-12-21 00:07:48 +00:00
Michael Brown
dbb7b30cca Return ANSI sequences for special keys 2006-12-20 23:42:28 +00:00
Michael Brown
43d976edd0 Prevent NULL from ever pointing to some real code or data. (This was 
causing the serial console to ignore input, because it happened to end up
linked with serial_ischar() at address 0, which core/console.c decided was
invalid).
 2006-12-20 20:28:20 +00:00
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.
 2006-12-19 01:15:05 +00:00
Michael Brown
8b3a4c9862 Add basic ANSI escape sequence support to BIOS console 2006-12-18 01:19:38 +00:00
Michael Brown
8a45f619a9 Fix building on gas versions that don't auto-insert addr32 prefixes 2006-12-12 19:07:18 +00:00
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.
 2006-12-05 09:45:39 +00:00
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.
 2006-09-27 10:58:14 +00:00
Marty Connor
6ac78f6aff added stdio.h to includes for DBG compilation 2006-09-27 05:57:06 +00:00
Marty Connor
c4964c3e3a fix args to _disable routine 2006-09-19 15:01:16 +00:00
Marty Connor
56a3ff7202 get rid of compile warnings (except intentionally generated ones) 2006-09-14 20:54:05 +00:00
Marty Connor
c30623b739 fix DBG macro unknown variable 2006-09-14 20:34:53 +00:00
Michael Brown
0566ab2a2f Added geometry-guessing code based on the partition table 2006-09-08 22:22:03 +00:00
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...)
 2006-08-31 13:25:45 +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
40724431e8 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).
 2006-08-26 23:42:02 +00:00
Michael Brown
19883779ba Use TEXT16_CODE() rather than manually specifying ".code16" etc, since 
our manual ".code32" will break a KEEP_IT_REAL build.
 2006-08-24 18:43:28 +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
4afc494b83 Both the !PXE and PXENV+ structures must be paragraph-aligned 2006-08-09 18:22:25 +00:00
Michael Brown
fd07f56f0d Note to self: learn to count. 2006-08-09 00:56:07 +00:00
Michael Brown
843bcc291d Added missing __from_text16()s when passing pointers to PXE NBP. 2006-08-09 00:39:21 +00:00
Michael Brown
751ae718bd pxe_int_1a is needed by pxe_call.c 2006-08-09 00:16:57 +00:00
Michael Brown
18c112d205 Added (not yet tested) PXE API entry point and support functions. 2006-08-08 20:43:33 +00:00
Michael Brown
a0a872f7f1 Updated PXE UDP implementation to use the new Etherboot UDP API. 
Updated PXE API dispatcher to use copy_{to,from}_user, and moved to
arch/i386 since the implementation is quite architecture-dependent.
(The individual PXE API calls can be largely
architecture-independent.)
 2006-08-02 23:08:10 +00:00
Michael Brown
2138db36ca Add "addr32" required explicitly by older gas. 2006-06-12 01:07:43 +00:00
Michael Brown
df4b503a8c Added null trap code for debugging. (Must be included by adding 
--nulltrap to the make target at the moment.)
 2006-06-11 01:48:29 +00:00
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.
 2006-06-09 12:20:03 +00:00
Michael Brown
6fd1bd0510 Added missing check-in 2006-06-09 10:19:17 +00:00
Michael Brown
17eea9f933 Fix bug with >256 cylinders. 
Allow our functions to return a non-zero, non-error status (since the
INT 13 Extensions Check has to return the API version in the register
that is otherwise always used for the error code).

Report a non-zero API version from the INT 13 Extensions Check; GRUB
now uses extended reads.
 2006-06-08 19:28:08 +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
763b7e2ef9 We now have just romprefix, rather than having isaprefix and pciprefix 2006-06-06 15:41:21 +00:00
Michael Brown
ef37f78cbe Cut out almost all the optional code paths, drastically simplifying the 
flow of control through this code.

We now always add PCI and PnP headers even for ISA ROMs; there's no harm
in doing so.

UNDI loader is still missing.
 2006-06-06 15:33:39 +00:00
Michael Brown
e7eca7b7cb Code segment may not be writable; create the temporary pointer to the GDT 
on the stack.
 2006-06-06 15:30:28 +00:00
Michael Brown
46253ba618 Calculate _rom_size for the ROM prefix 2006-06-06 15:29:39 +00:00
Michael Brown
35b04b1514 Tidy up comment 2006-05-28 14:40:04 +00:00
Michael Brown
041a04335e Fixed assembly on old versions of gas 2006-05-28 14:21:29 +00:00
Michael Brown
9f86754f90 Updated to work with libprefix. 2006-05-25 22:04:47 +00:00
Michael Brown
29340d7728 Documented the fact that the prefix can prot_call(main) without 
worrying about its stack being destroyed during the Etherboot run.
 2006-05-25 22:04:17 +00:00
Michael Brown
d82f71efd0 Also hide base memory region from E820 map. 2006-05-25 00:10:58 +00:00
Michael Brown
89da833c5d init_librm() and prot_call() are now real-mode far calls. 
install() now calls relocate(), moves the protected-mode code to the new
location, and calls hide_etherboot().
 2006-05-25 00:06:45 +00:00
Michael Brown
4d81b48504 Has been obsolete for a while. 2006-05-25 00:04:37 +00:00
Michael Brown
1966945a5d Update relocate() to work with get_memmap(). 
Change semantics; relocate() now just finds a suitable location; it
doesn't actually perform the relocation itself.  Code in libprefix does
the copy in flat real mode.
 2006-05-25 00:04:13 +00:00
Michael Brown
f939ff7cb5 Fix printf format warning error 2006-05-25 00:02:27 +00:00
Michael Brown
3bd3c13c7b Why should pushal/popal put the registers on the stack in a logical 
order?
 2006-05-25 00:01:46 +00:00
Michael Brown
dd75965057 Typo. 2006-05-25 00:00:53 +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
190276a8b6 NBI is due for removal 2006-05-24 13:53:35 +00:00
Michael Brown
52125e158c Will be replaced with a block-device implementation. 2006-05-24 13:52:46 +00:00
Michael Brown
8110f9b082 Updated to REAL_CODE() 2006-05-24 13:50:40 +00:00
Michael Brown
595f161b51 Updated to REAL_CODE(). 
int13_boot() now does its own segment register save and restore, ready
for the removal of segment register restoration from the libkir
generic code.
 2006-05-24 13:48:16 +00:00
Michael Brown
e8550035af Updated to REAL_CODE() 2006-05-24 13:28:39 +00:00
Michael Brown
c4d688c005 Updated to REAL_CODE(). 2006-05-24 13:24:22 +00:00
Michael Brown
04d6005d77 Update to REAL_CODE() 2006-05-24 12:45:50 +00:00
Michael Brown
6631f46999 Updated to REAL_CODE(). 2006-05-24 12:32:57 +00:00
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.
 2006-05-24 12:19:16 +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
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).
 2006-05-23 23:47:05 +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
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.).
 2006-05-23 23:33:37 +00:00
Michael Brown
ca2519cea3 Refactored to reduce code size; now down from 1304 to 1105 bytes. 
Tidied up debug messages; the log now contains one line per INT 13
operation, looking like

 INT 13,08 (80): Get drive parameters
 INT 13,02 (80): Read: C/H/S 0/47/14 = LBA 0xb9e <-> 1084:0000 (count 106)
 2006-05-20 15:33:32 +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
15ee09ed10 Restructured PCI subsystem to fit the new device model. 
Generic PCI code now handles 64-bit BARs correctly when setting
"membase"; drivers should need to call pci_bar_start() only if they want
to use BARs other than the first memory or I/O BAR.

Split rarely-used PCI functions out into pciextra.c.

Core PCI code is now 662 bytes (down from 1308 bytes in Etherboot 5.4).
284 bytes of this saving comes from the pci/pciextra split.

Cosmetic changes to lots of drivers (e.g. vendor_id->vendor in order to
match the names used in Linux).
 2006-05-16 15:12:06 +00:00
Michael Brown
fcdab6299c Missed a reference to heap.h. 2006-05-16 15:01:26 +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
29fb77b0a4 Fix a couple of minor typos. 2006-05-14 18:17:29 +00:00
Michael Brown
6e42cb95bd Also capture INT 19 as a failure path, to allow for boot sectors that 
don't conform to BBS (e.g. the one created by mkdosfs).
 2006-05-14 14:13:55 +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
63499e9cfd Allow re-entrancy and provide a global counter of the number of 
interrupts hooked.
 2006-05-13 11:44:11 +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
1838b58c3f Add drivers/block and arch/i386/interface/pcbios 2006-05-13 11:35:29 +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
fdb983d473 Preserve the whole of %esp across prot_call(). We have to split this 
between the low half stored in the static variable rm_sp, and the high
half stored on the prot_call() stack, because:

  Just using the stack would screw up when a prot_call()ed routine
  executes a real_call(); it would have no way to find the current top of
  the RM stack.

  Extending rm_sp to rm_esp would not be safe, because the guarantee that
  rm_sp must return to the correct value by the time an external
  real-mode call returns applies only to %sp, not to %esp.
 2006-05-06 19:44:23 +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
c10d1aa9d7 Preserve GDT across prot_call(). 2006-05-06 18:52:27 +00:00
Michael Brown
dcc1b0054e This line should not have been checked in 2006-05-04 23:22:42 +00:00
Michael Brown
832807726a Add infrastructure to support access to .data16 (and .text16) variables 
from protected-mode code.

Set up %ds to point to .data16 in prot_to_real, so that code specified
via REAL_EXEC() and friends can access variables in .data16.

Move most real-mode librm variables from .text16 to .data16.
 2006-05-04 23:14:06 +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
f8f75cef5b BSS is now zeroed by libprefix (along with the otherwise non-zeroable 
portions such as the stack) during the installation process.

init_fns() are called from main().  We need to think about initial
control flow some more.
 2006-05-02 21:10:45 +00:00
Michael Brown
cc23057b59 Typo 2006-05-02 21:09:29 +00:00
Michael Brown
10c28a51bd Create two easy-to-use entry points in libprefix: install and 
install_prealloc.  I *think* these will suffice for all the 16-bit
prefixes.
 2006-05-02 20:51:07 +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
8f62b39c03 Move stack out to separate object, so that having a stack doesn't drag in 
setup.S.
 2006-05-02 14:57:48 +00:00
Michael Brown
5463169c1a Verified as working 2006-05-02 14:04:21 +00:00
Michael Brown
d081d65d48 This should be much more elegant: we use flat real mode for the 
highmem data, so decompress16 will be able to unpack blocks bigger
than 64kB.
 2006-05-01 22:35:19 +00:00
Michael Brown
cc8821a443 Checking in because I don't want to lose this rather neat code for 
running the decompresser in 16:16 protected mode using the real-mode
stack.  However, there's an even simpler way to do it...
 2006-05-01 21:26:44 +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
352bf1bda2 Move init.h to gpxe/init.h. 2006-04-30 01:08:52 +00:00
Michael Brown
d8e99bf28f Gave up on adding POSIX errno's as required, and just added (almost) all 
of them in one go.

EBADIMG has been replaced by ENOEXEC, and EIMGRET by ECANCELED.
 2006-04-28 13:44:34 +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
4c4e4de18f (librm_base-1b) is already an offset; no need to apply OFFSET(). 
Doing so, in fact, seems to expose an assembler bug; (a-b-0) is
apparently not the same as (a-b).  Go figure.
 2006-04-24 18:29:47 +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
cdf1511d3e Prefix semantics have changed 2006-03-16 19:28:38 +00:00
Michael Brown
7e0a7a2e08 Merge from Etherboot 5.4 2006-03-16 18:30:54 +00:00
Michael Brown
9b18017296 Merge from Etherboot 5.4 2006-03-16 18:15:48 +00:00
Michael Brown
bb7394b041 Merge from Etherboot 5.4 2006-03-16 17:59:51 +00:00
Michael Brown
5d28bae0f1 Fix up building with gcc 4.0.1 / gas 2.16.91 2006-01-17 01:47:41 +00:00
Michael Brown
0e494614b5 Some versions of doxygen seem to object to "@ret None" or similar. 2005-05-24 00:11:25 +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
079b5d5527 Moved pxe_loader.c to pxe_image.c to avoid name clash 2005-05-23 23:05:45 +00:00
Michael Brown
8becf0f65f Rearranging PXE header files 2005-05-23 22:45:48 +00:00
Michael Brown
d5789ff4a2 Doxygenation 2005-05-20 11:28:27 +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
783e9ca396 Added doxygen comments and errno values. 2005-05-18 13:22:45 +00:00
Michael Brown
fac5f28d7e There is no arch/i386/firmware/linuxbios directory 2005-05-18 11:11:57 +00:00
Michael Brown
205a7ad5e0 Moved NBI support to nbi.c, modified to work with new load mechanism 2005-05-17 13:42:20 +00:00
Michael Brown
9c832a6a69 First version 2005-05-17 13:41:00 +00:00
Michael Brown
9a413cfea1 Moved os_regs into start32.S 2005-05-17 13:37:01 +00:00
Michael Brown
a76b9c3f19 Added debug messages 2005-05-17 13:36:12 +00:00
Michael Brown
479fb900a1 Added copy_phys_to_phys 2005-05-17 13:34:57 +00:00
Michael Brown
4f27994980 Added "image" directory 2005-05-17 13:34:25 +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
301b2d40f0 Use the heap functions to allocate a load buffer. 2005-05-13 13:30:51 +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
9fc97f8513 First version 2005-05-09 18:02:22 +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
ff8e46f2f3 #if 0 out the whole file for now; it cannot be linked because the base 
memory interface has changed.
 2005-05-03 11:56:33 +00:00
Michael Brown
282b6f1a1a isa.c uses the new table infrastructure. 2005-04-27 12:24:38 +00:00
Michael Brown
f37e0a06d7 dev.c uses the new tables infrastructure. 2005-04-27 12:20:54 +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
3e5bf5fb06 console.c uses the generic table mechanism 2005-04-27 11:38:43 +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
3a7967a38a PCI_DRIVER changed 2005-04-26 12:20:05 +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
10b7b1a61f Added arch/i386/drivers/disk 2005-04-25 19:29:02 +00:00
Michael Brown
5bace628ae Added "name" field to bus structure. 2005-04-25 18:54:15 +00:00
Michael Brown
698f86f25a Prevent hundreds of errors from "make symcheck". The prefix exit path 
mechanism has changed anyway, and so must be rewritten, but at least doing
this makes the output of "make symcheck" more legible.
 2005-04-23 14:57:53 +00:00
Michael Brown
dbea213c27 Coerced into compiling. 2005-04-22 16:40:10 +00:00
Michael Brown
84f43ea9cf isapnp_read_port can be set directly, rather than via a function call. 2005-04-22 16:03:25 +00:00
Michael Brown
98ff29345e Created a bus/device API that allows for the ROM prefix to specify an 
initial device, and will also allow for e.g. a device menu to be presented
to the user.
 2005-04-21 18:18:29 +00:00
Michael Brown
e74bbaeca0 First versions 2005-04-19 14:17:42 +00:00
Michael Brown
2c7d72e11e Moved floppy.c to i386 arch, since it's i386-specific. 2005-04-18 18:56:18 +00:00
Michael Brown
e3bb65c17f Added remaining bus functions. 2005-04-18 18:54:27 +00:00
Michael Brown
7af89ccf33 Code fixed to operate correctly. 2005-04-18 15:48:20 +00:00
Michael Brown
400fd74897 Extracted from firmware/pcbios/bios.c 2005-04-18 15:39:02 +00:00
Michael Brown
d3ce66a301 Added arch/i386/drivers/bus 2005-04-18 15:37:17 +00:00
Michael Brown
c245ab75ad Moved disk functions to drivers/bus/bios_disks.c 2005-04-18 15:35:39 +00:00
Michael Brown
a245c93417 Be nice to emacs 2005-04-18 12:59:50 +00:00
Michael Brown
451ea7ffc5 Added warning about not using Config for single-object options. 2005-04-18 12:53:39 +00:00
Michael Brown
2c36f5e6c7 Save a few bytes by using naturally-sized ints. 2005-04-18 09:17:27 +00:00
Michael Brown
63e0c8f947 xstart16() fixed up to use new REAL_EXEC mechanism. 2005-04-17 12:36:45 +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
8e27e50316 We don't refer to _bss and _ebss any more. 2005-04-17 11:47:18 +00:00
Michael Brown
6e5a3858bf Read number of PCI buses returned by BIOS so that we can scan more 
quickly.
 2005-04-16 11:16:31 +00:00
Michael Brown
2c2154b169 Now compiles. 2005-04-15 16:52:28 +00:00
Michael Brown
44c7cc8c12 Standardised debug mechanism in place now. 2005-04-14 11:55:57 +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
c2a21744f6 We now record a pointer to the struct pci_device, since it's carried 
around in struct dev anyway.
 2005-04-12 22:42:52 +00:00
Michael Brown
e1d0cebfa8 Able to at least compile again now. 2005-04-12 19:11:42 +00:00
Michael Brown
0effbefe6f All boot device drivers are now lumped together in boot_drivers 2005-04-12 16:46:15 +00:00
Michael Brown
3095881c54 For pci_io.c 2005-04-12 16:44:50 +00:00
Michael Brown
17aad49028 16-bit PCI BIOS interface also now known to work. 2005-04-12 16:42:14 +00:00
Michael Brown
bbcdf38214 Improved debug messages 2005-04-12 16:27:27 +00:00
Michael Brown
ff53205d0d Should work for KEEP_IT_REAL as well now. 2005-04-12 13:35:31 +00:00
Michael Brown
0ccaf5bb83 Nearly there... 2005-04-12 13:31:36 +00:00
Michael Brown
378c1b500c Cleaner separation of functionality between post_reloc and 
initialise_via_librm.
 2005-04-11 09:24:10 +00:00
Michael Brown
34a0b5f16f initialise() doesn't take regs 2005-04-10 18:39:28 +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
997b51c1e6 Use librm_arch_initialise for librm, arch_initialise for others. 2005-04-10 18:22:31 +00:00
Michael Brown
560027899e Heading towards a sane set of control functions 2005-04-10 18:21:53 +00:00
Michael Brown
39cb1b4f9e All the icky stuff is now taken care of by librm_arch_initialise 2005-04-10 18:21:27 +00:00
Michael Brown
3714946709 arch_rm_main no longer exists. 2005-04-10 18:19:59 +00:00
Michael Brown
f06e8c9707 Added post-relocation function table. 2005-04-10 18:18:37 +00:00
Michael Brown
070f6c0b6b Fixed debug messages 2005-04-10 16:58:19 +00:00
Michael Brown
43417e6c1b setup16() now calls initialise(); we don't have to do it. 2005-04-10 16:48:04 +00:00
Michael Brown
04682f9838 Setup now calls initialise() directly, rather than expecting the 
prefix to do it.
 2005-04-10 16:46:46 +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
04a99841e6 Make prot_call() able to transparently return via the newly installed copy 
of librm.
 2005-04-10 15:51:10 +00:00
Michael Brown
44eee81d11 Don't build relocate() under KEEP_IT_REAL 2005-04-09 17:05:35 +00:00
Michael Brown
2fa14f2f1d lgdt needs data32 prefix, otherwise it loads only 24 bits. (sgdt 
always saves 32 bits).
 2005-04-09 16:42:50 +00:00
Michael Brown
6a4ac358f3 Add INIT_FNs to make sure that librm gets reallocated when needed. 2005-04-09 16:42:07 +00:00
Michael Brown
e29e6456b0 Don't zero freed base memory; one block will contain librm. 2005-04-09 16:14:37 +00:00
Michael Brown
1f6dfd7047 Allow ourselves to be freed by basemem.c without being damaged. 2005-04-09 16:14:09 +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
90cf689810 Note basemem API change. 2005-04-09 15:56:03 +00:00
Michael Brown
48feb91a40 Rewritten in a much saner way, now that we don't have to worry about 
continually reallocating the real-mode stack.
 2005-04-09 15:01:38 +00:00
Michael Brown
0574136c6d Split out from etherboot.h 2005-04-09 15:01:09 +00:00
Michael Brown
fd95189c4d basememsize() updates the BIOS FBMS counter at 40:13. 2005-04-09 14:16:25 +00:00
Michael Brown
a800e9657d PM function called by prot_call() should be allowed to modifying 
registers returned to RM code.
 2005-04-09 13:56:33 +00:00
Michael Brown
29f43896aa Add relocate.h 
Note that we can't make real-mode calls immediately after relocate_to().
 2005-04-09 13:36:55 +00:00
Michael Brown
9cc90cbb07 First version 2005-04-09 13:32:26 +00:00
Michael Brown
8039086ec8 Added a lot of explanatory comments. 
Preserves alignment requested via _max_align parameter to linker.
 2005-04-09 13:12:22 +00:00
Michael Brown
19176718be callbacks.h no longer exists 2005-04-09 11:19:14 +00:00
Michael Brown
792f34d228 #ifdef 0 out the UNDI loader routine, since it refers to the obsolete 
callback mechanism.
 2005-04-09 11:17:29 +00:00
Michael Brown
73dbe41007 Old callbacks mechanism is obsolete. 2005-04-09 11:16:17 +00:00
Michael Brown
a4920c16bd Moved relocate.c to arch-specific dir, since it involves arch-specific 
logic (e.g. avoiding memory regions with A20=0).
 2005-04-09 10:49:26 +00:00
Michael Brown
0ff80b477d Merged mcb30-realmode-redesign back to HEAD 2005-04-08 15:01:17 +00:00
Michael Brown
afff2b50f1 Obsolete; not referenced by anything. 2005-03-09 14:16:01 +00:00
Michael Brown
168973a5d7 Obsolete; not reference by anything. 2005-03-09 14:11:45 +00:00
Michael Brown
6d4d056202 Obsolete; not referenced by anything. 2005-03-09 14:09:29 +00:00
Michael Brown
0ff846a503 unhuf.S is obsolete and no longer used 2005-03-09 14:07:23 +00:00
Michael Brown
10d9f9cec8 Obsolete and no longer used 2005-03-09 14:05:32 +00:00
Michael Brown
8bd447ad1b Add rule to generate 16-bit version of decompressor 2005-03-09 14:04:04 +00:00
Michael Brown
3d6123e69a Initial revision 2005-03-08 18:53:11 +00:00