| Commit message (Collapse) | Author | Age | Files | Lines |
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Remove the old mechanism that used port 0x8900 to send apm signals.
Recent versions of QEMU no longer support this port. Bochs and QEMU
only ever supported shutdown anyway, and shutdown is already available
via an ACPI mechanism.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
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Move the inb(), insb(), etc. code from ioport.h to x86.h. Move the
PORT_* definitions to their appropriate hardware files.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
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Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
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Also, sort the order of include files in the c files.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
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Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
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Move many C files from the src/ directory to the new src/fw/ directory.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
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Qemu commit 9ee59f3 removed the bochs bios apm interface emulation at
port 0x8900. That broke poweroff via APM. Fix it by powering off the
machine using the acpi pm control register.
Old code is left in, so seabios wil try both poweroff methods. Cleaning
that eventually up is left for another patch, after checking it isn't
needed. Qemu never implemented "Standby" and "Suspend", only
"Shutdown", so it looks like there might be non-qemu use cases (bochs
probably).
Easiest way to test this is the syslinux poweroff module; modern linux
distros usually have CONFIG_APM turned off.
Reported-by: Sebastian Herbszt <herbszt@gmx.de>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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CONFIG_QEMU means compile to start from QEMU (and possibly
Xen/KVM/Bochs) and definitely running under QEMU (or Xen/KVM/Bochs).
CONFIG_COREBOOT means compile for coreboot and definitely running
under coreboot. Places that used CONFIG_COREBOOT to mean "running on
real hardware" have been changed to use !CONFIG_QEMU.
CONFIG_QEMU_HARDWARE enables support for some virtual hardware devices
even if QEMU didn't start SeaBIOS.
usingXen() is replaced by runningOnXen().
runningOnQEMU() is added to hardware devices that are only safe to
access when we are sure we are running under QEMU (or Xen/KVM/Bochs).
Neither the coreboot nor the csm code currently enable runningOnQEMU,
but future patches may.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
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Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
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Since SeaBIOS has been updated to use "_cfuncx_" prefixes when calling
cross-mode C functions, there is no reason to restrict an exported C
function to only the given mode.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
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Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
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Use a more consistent naming that matches entry_xxx to handle_xxx
where possible.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
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Extend the hard-reboot logic to qemu and kvm. On qemu, a reboot will
not reset the memory settings for 0xc0000-0xfffff, so copy that memory
area manually before rebooting. Unfortunately, kvm does not keep a
pristine copy of the BIOS at 0xffff0000, so detect that case and
shutdown the machine.
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Reduce the need for placing #if guards around functions that are
marked as VISIBLE in another code chunk by declaring the functions as
"weak" when they are not needed.
It's still necessary to ensure that no C code references the data from
a different chunk (or an -fwhole-program compile might try to keep a
local reference).
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Omitting "void" leads to a K&R style declaration which was not intended.
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Add APM code to 32bit segmented code.
Use 32bit APM code instead of jumping into 16bit mode.
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Don't use "fail" in the debug output - as this confuses users.
When reporting on an invalid parameter - use the word "invalid".
When reporting on an unimplemented call - state it is unimplemented.
Add separate debug levels for unimplemented vs invalid calls.
Also, increase the debug level of several entry points.
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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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Don't worry about %esp high bits - 16bit protected mode may require
the bits to be set. It would be very odd to call into the bios
with junk in %esp high bits.
Fix 32bit apm entry point.
Don't log apm calls 155306/15530b.
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New option CONFIG_APMBIOS can be used to disable apm.
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Rename BX_INFO() to dprintf() and add a "severity level" parameter.
Add CONFIG_DEBUG_LEVEL compile option to control debug verbosity.
Add more debug info to init steps of post.c.
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Add new option for targetting a coreboot payload.
When in coreboot mode, configure out those parts of the code that wont
work on real hardware.
Don't include cmos.h in files that don't need it.
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Several minor comment improvements.
Rearrange some definitions to make them more clear.
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Remove some redundant code from Makefile.
Improve a couple of comments.
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Calling debug_exit at the end of a call doesn't help much - several of
the registers are already clobbered at this point. It also increases
stack usage because it prevents call tail optimization in many places.
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Create and register protected mode interfaces.
Still needs more testing.
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