david/ipxe
david/ipxe
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435 Commits

Author SHA1 Message Date
Michael Brown
6d2e4e719c Move uninitialised .data16 variables to .bss16; saves around 2000 
bytes of useless zeroes in the final image.
 2007-07-16 13:22:12 +01:00
Michael Brown
389204713f Kill off some long-redundant CFLAGS 2007-07-16 13:15:12 +01:00
Michael Brown
833d6cc8ec Add __bss16() macro, and allow use of .bss16 section by removing 
link-time check for section overlaps.  (In order to avoid wasting
space in the executable image, .bss16 will overlap with the following
section, which is .text).
 2007-07-16 13:10:49 +01:00
Michael Brown
ab859a5355 Use a single _payload_offset linker-defined variable to locate the 
start of the non-prefix blocks in the loaded image, and rely on the
image ordering.  This should make introducing compression much easier.
 2007-07-15 02:52:02 +01:00
Michael Brown
0b5059c40b Skip the length field prepended by util/nrv2b.c 2007-07-15 02:01:17 +01:00
Michael Brown
b37e267d1b Modified calling convention: we now update %esi and %edi just like a 
"rep movsb".
 2007-07-15 01:51:32 +01:00
Michael Brown
3feac9465e "not" doesn't affect flags, "xor $-1" does. 2007-07-15 01:25:13 +01:00
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.
 2007-07-14 20:56:12 +01:00
Michael Brown
adf192f566 Shrink cpu.c and render it useful for our purposes. 2007-07-14 19:12:13 +01:00
Michael Brown
e330db3c74 Dead code removal. 
Kill off use of etherboot.h outside drivers/net.
 2007-07-14 15:42:26 +01:00
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.
 2007-07-14 14:21:18 +01:00
Michael Brown
8624fdc445 Kill off the enforced RX quota; it only seems to hurt on real hardware. 2007-07-14 00:30:11 +01:00
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.
 2007-07-13 13:32:49 +01:00
Michael Brown
2ac7694c3e Improve error reporting for strange length combinations reported by 
the UNDI stack.

Ignore obviously invalid length combinations (as returned by
e.g. VMWare's PXE stack).

Limit to one packet per poll to avoid memory exhaustion.
 2007-07-10 20:59:21 +01:00
Michael Brown
efd322091d Set up %ds *before* testing a value in our data segment (d'oh!). 
Always send EOI; do not chain to BIOS's default interrupt handler.
They are just too unpredictable; at least VMware's seems to kill the
machine if you go anywhere near it.

Disable interrupts after return from PXENV_UNDI_ISR, just in case some
dumb PXE stack enables them.
 2007-07-10 17:08:32 +01:00
Michael Brown
f6f9a3098d Report RX errors via netdev_rx_err() 2007-07-10 17:01:18 +01:00
Michael Brown
fb16f90699 Dump first 64 bytes of chained ISR when debugging is enabled. 2007-07-10 16:57:55 +01:00
Michael Brown
edc4648c39 Protect ISR against failure to unhook. 2007-07-10 04:34:53 +01:00
Michael Brown
4e14b020a5 Master IRQ should be EOIed first, I think. 2007-07-10 04:33:59 +01:00
Michael Brown
19871cbb96 We probably ought not to call INT13 with interrupts disabled. 2007-07-10 04:32:30 +01:00
Michael Brown
027fed72c1 Working code to call the PXE stack from within the ISR. 2007-07-10 04:21:24 +01:00
Michael Brown
cd7e296cbe Always increase number of BIOS drives when registering 2007-07-09 20:42:04 +01:00
Michael Brown
b90d321dfb Change %dl fixup rules for INT13: 
INT 13,08 : read number of drives from 40:75
INT 13,15 : do nothing
all others : restore original value of %dl
 2007-07-09 20:37:39 +01:00
Michael Brown
c7d9fdb5b9 Proof of concept; works, but has several hard-coded hacks. 2007-07-09 20:28:40 +01:00
Michael Brown
8bce52d348 Set CF by default, clear on success (rather than clearing and setting 
on failure).
 2007-07-09 19:02:41 +01:00
Holger Lubitz
4ff85d9f15 Add -mpreferred-stack-boundary=2 to i386 CFLAGS as it's almost always a win. 2007-07-09 03:32:54 +01:00
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