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Add new "ramdisk" type for disk accesses.
Extract out high-mem finding code from pmm into find_high_area().
Fix bug in GDB_BASE and GDT_LIMIT macros (wrong bit shifts).
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Move generic code from ata.c to new file block.c.
Rename atabits.h to ata.h and move ata header definitions from disk.h.
Rename ATA.channels to ATA_channels.
Rename ATA structure to Drives.
Support both CONFIG_DRIVES and CONFIG_ATA options.
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Add versioning info to initial debug and screen banner output.
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Add initial code for Post Memory Manager - it's just the stubs for now.
Also, fix PnP entry point not clearing irqs and direction flags.
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Verify VGA card vendor is via before supporting via 155f calls.
Add support for future code depending on coreboot board id.
Add code for via VX855 memory size and speed detection.
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Rename romlayout16.o to code16.o.
Rename ccode32.o to code32.o.
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Rename smpdetect.c to smp.c - the code does more than just cpu detection.
Don't probe cpu count on demand - schedule it during post.
Add logic to run wrmsr on all cpus.
Don't make mtrr setup specific to kvm - do it on all machines that
have mtrr and msrs.
Detect cpu signature/features automatically in mptable.
Also, make sure acpi structures are packed.
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Enhance build to detect and avoid gcc with broken -fwhole-program
Also, remove workaround for older gcc that mess up global exports.
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Suppress __attribute__((externally_visible)) when no -fwhole-program
Add switch hack for compilers without -fno-jump-tables
Define memcpy() function (for compilers without -minline-all-stringops).
Define call16_simpint as a macro (a param needs to be inlined).
Make sure s3_resume is only defined in 32bit mode.
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Implement -ffunction-sections and -fdata-sections in both 32bit and
16bit code.
Make sure all sections have unique names (even asm and discarded
sections).
Enhance tools/layoutrom.py script to find all sections reachable from
exported 16bit code - prune all other sections.
Mark sections with "export" if they can be visible outside of code -
these sections wont be dropped when pruning unused sections.
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Make was stripping the relocated 16bit code - keep the unstripped
16bit code so that checkstack can parse it.
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Use linking magic to eliminate the need for the _code32_ prefix.
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This is an initial import of the code from:
http://www.nongnu.org/vgabios/
The code has been ported from bcc to gcc and gas.
This is an initial import - many functions have not been ported; many
bugs are present.
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Support payloads compressed with lzma.
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Different gcc versions handle __builtin_memcpy differently.
Add -minline-all-string to force inlining of memcpy on old gcc.
Always use __builtin_memcpy for all memcpy calls.
Use memcpy4() for the option rom case where 4-byte accesses is important.
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This option emits code which accesses global variables - it wont work
in 16bit mode.
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Declare output sections with explicit start address - don't rely on LD
using '.' for the start of the section. Make addresses that are
absolute by using the ABSOLUTE() function.
Discard .eh_frame - new gcc has this on by default.
Also, don't use '-d' - instead use FORCE_COMMON_ALLOCATION.
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Verify -fwhole-program works at make startup.
Warn when gcc marks global functions as local.
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Simplify keyboard handling in post_menu.c, and move to util.c.
Move remaining functions in post_menu.c to boot.c; remove post_menu.c.
Also, remove broken check for F12 when in boot menu.
Move BEV setup code from post.c to boot.c.
Move option rom BEV adding code from optionroms.c to boot.c.
Avoid calling BX_PANIC during boot if there is an alternative.
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Define macro VAR16FIXED for declaring a variable at a fixed location.
Introduce new file src/misc.c, and move non int15 calls from system.c
to it.
Implement all fixed location variables in C code.
Move IDT/GDT defs to misc.c. Remove unused gdt entry 1.
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Enhance layoutrom.py script to find and locate sections into fixed area.
Have layoutrom.py create output file instead of using redirect from make.
Don't use freespace2 for bios tables in f segment - freespace in fixed
area is now automatically filled.
Change checkrom script to test final_code16_end instead of _start -
this improves catching of alignment errors.
Don't align gdt to 8 bytes - it causes whole section to be aligned,
which causes entry point to be misaligned.
Explicitly reserve space for variables in fixed area so that the space
for them is not auto-filled.
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The fixed offset requirements of the 16bit code can be done using
multiple sections and a linker script. Using the linker allows
for more flexibility.
Also, have the 16bit code generate sections for every function and
variable definition.
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Change license of contributions from Kevin O'Connor from GPLv3 to
LGPLv3 (or later). Since the work as a whole is based on Kevin's
contributions and the "bochs bios" which has a license of LGPL (v2 or
later), this effectively makes the work as a whole available under
LGPLv3 (or later).
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Add some of the enhancements KVM has to their bochs bios tree. This
is only partial support for KVM - some features still do not work
correctly.
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Use 4 instead of 8 -- latest gcc isn't doing tail-recursion
optimizations on disk functions due to stack growth.
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Rename VAR16 to VAR16_32 -- that macro supports accesses from both
16bit and 32bit mode.
Introduce a new macro VAR16 that must be present on all global
variables accessed from 16bit mode.
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Also, make sure the pir table is defined with the 16bit code.
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This commit provides just enough PnP support for gPXE to not hook int19.
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Detect a non-standard CMOS shutdown code during post and run a
separate resume handler.
Set aside space in the EBDA for the resume handler stack.
Add support for several of the code supported in bochs bios.
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Compile the smp detect handler with the rest of the 16bit code.
Implement a simple ljmpw trampoline so the main code can run in place.
Restore memory afterwards to prevent memory corruption.
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Don't assemble romlayout16.S with debugging on - gcc gets confused
when multiple files with debugging are included.
Be more consistent in status messages.
Use ccode instead of blob/romlayout32 -- it's more accurate.
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Replace __call16 hardcoded offsets with auto generated struct offsets.
Also, load/save %ds register in __call16().
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Fix two apparent bugs - set_a20() returned new status instead of old
status and handle_152402() checked wrong bit.
Add bit definition for the a20 enable bit: A20_ENABLE_BIT
Allow ioport.h #defines to be used in romlayout.S.
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Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
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Move option rom code from post.c to optionroms.c.
Add struct definitions for option roms.
Fix an apparent bug in the check for pnp extension headers.
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The VIA vga bios likes wants to call int 15/5f of main bios. So, add
stubs to make it happy.
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Some build systems try to override CFLAGS, but this project needs it
to be set explicitly.
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A testing change got accidentally commited.
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Use command sending code for communicating with the ps2 port.
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When in 32bit mode - just define it to 0.
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The boot entry points should not require 16bit mode, so use 32bit mode
instead.
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Sigh - ld seems to move things around when relinking files. So,
separate out the link stages so that everything is incremental.
Also, improve diagnostics of checkrom.py tool.
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