| Commit message (Collapse) | Author | Age | Files | Lines |
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1. Make libefi portable by removing ia64 specific code and build
it on i386 and amd64 by default to prevent regressions. These
changes include fixes and improvements over previous code to
establish or improve APIs where none existed or when the amount
of kluging was unacceptably high.
2. Increase the amount of sharing between the efi and ski loaders
to improve maintainability of the loaders and simplify making
changes to the loader-kernel handshaking in the future.
The version of the efi and ski loaders are now both changed to 1.2
as user visible improvements and changes have been made.
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64-bit, even when sizeof(void *) is 32-bit.
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implementation. This re-introduces C99 style comments that previously
were replaced by original C comments.
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device (kind) specific unit field to the common field. This change
allows a future version of libefi to work without requiring anything
more than what is defined in struct devdesc and as such makes it
possible to compile said version of libefi for different platforms
without requiring that those platforms have identical derivatives
of struct devdesc.
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stale comments.
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"boot_dfltroot", "boot_mute", and "boot_pause" respectively.
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and works on all compilers. This also removes the need for
__CC_SUPPORTS_FORWARD_REFERENCE_CONSTRUCT in <sys/cdefs.h>.
OK'ed by: marcel, dfr
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place.
This moves the dependency on GCC's and other compiler's features into
the central sys/cdefs.h file, while the individual source files can
then refer to #ifdef __COMPILER_FEATURE_FOO where they by now used to
refer to #if __GNUC__ > 3.1415 && __BARC__ <= 42.
By now, GCC and ICC (the Intel compiler) have been actively tested on
IA32 platforms by netchild. Extension to other compilers is supposed
to be possible, of course.
Submitted by: netchild
Reviewed by: various developers on arch@, some time ago
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did anything, so this commit should be considered a NO-OP.
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and efi_readin(). This removes MD code from copy.c.
o Don't unconditionally add pal.S to SRCS. It's specific to ia64.
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under ../ia64/efi.
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any fake value.
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bit-fields. Unify the PTE defines accordingly and update all
uses.
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we construct the EFI image. It doesn't seem to actually end up
in the EFI image, AFAICT.
o Replace .quad, .long and .short with data8, data4 and data2 resp.
The former are gnuisms.
o Redefine _start_plabel as a data16 with @iplt(_start) as its
value. This is the preferred way to create user PLT entries.
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binutils 2.15. The linker now creates a .rela.dyn section for
dynamic relocations, while our script created a .rela section.
Likewise, we copied the .rela section to the EFI image, but not
the .rela.dyn section. The fix is to rename .rela to .rela.dyn
in the linker script so that all relocations end up in the same
section again. This we copy into the EFI image.
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per letter dated July 22, 1999.
Approved by: core
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loader typically doesn't do this so that we end up booting the
with whatever the EFI loader has set it to last.
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other constributions are compiled.
o Remove powerpc specific additions to CFLAGS.
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Tested by: marcel
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EFI file system. When booting from a CD and there's already an EFI
system partition on the disk, setting the current device to unit 0
will select the harddisk. This invariably breaks installing FreeBSD
when other operating systems have been installed before.
We obviously want to do the same when we're booting over the network.
Maybe later.
Based on a patch (from memory) from: arun
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on ia64. This fixes the breakage caused by the gcc upgrade that
resulted in a broken executable.
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Approved by: marcel
Repocopied by: joe
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things over floppy size limits, I can exclude it for release builds or
something like that. Most of the changes are to get the load_elf.c file
into a seperate elf32_ or elf64_ namespace so that you can have two
ELF loaders present at once. Note that for 64 bit kernels, it actually
starts up the kernel already in 64 bit mode with paging enabled. This
is really easy because we have a known minimum feature set.
Of note is that for amd64, we have to pass in the bios int 15 0xe821
memory map because once in long mode, you absolutely cannot make VM86
calls. amd64 does not use 'struct bootinfo' at all. It is a pure loader
metadata startup, just like sparc64 and powerpc. Much of the
infrastructure to support this was adapted from sparc64.
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the address of the image base of the loader. Given cr.iip, we can
use the symbol table to figure out what function caused the trap.
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determine whether we have command line options. We expect a
valid string pointer as well.
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introduce a preprocessor define for it. The larger block size
significantly speeds up the loading of the kernel.
Submitted by: Arun Sharma <arun.sharma@intel.com>
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exists.
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NULL is passed. The address of the HCDP table can be found by
iterating over the configuration tables in the EFI system table.
To avoid more duplication, a function can be called with the GUID
of interest. The function will do the scanning. Use the function
in all places where we iterate over the configuration tables in
an attempt to find a specific one.
Bump the loader version number as the result of this.
Approved by: re (blanket)
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cleaning up after ourselves.
Approved by: re (blankoscheck)
German corrections: Alexander (both :-)
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accept load options (=command line options).
The call graph changes from *entry*->efi_main->efi_init, where
efi_main is the EFI equivalent of main to *entry*->efi_main->main,
where main is what you'd expect. efi_main now is what efi_init was.
The prototype of main follows that of C. The first argument is argc
and the second is argv. There is no third argument.
Allocation of heap pages is now handled by the EFI library and it
now deallocates the pages when main() returns or when exit() is
called. This allows us to safely return to the boot manager (or
EFI shell) without leaks. EFI applications are responsible to free
all memory themselves.
Handling of the load options is a bit tricky. There are either no
load options, load options in ASCII or load options in Unicode.
The EFI library will translate the ASCII options to Unicode options
as to simplify user code. Since the load options are passed as a
single string (if present) and main() accepts argc and argv, the
startup code also has to split the string into words and build the
argv vector. Here the trickiness starts. When the loader is started
from the EFI shell, argv[0] will automaticly load the program name.
In all other cases (ie through the boot manager), this is not the
case. Unfortunately, there's no trivial way to check. Hence, a
set of conditions is checked to determine if we need to fill in
argv[0] ourselves or not. This checking is not perfect. There are
known cases where it fails to do the right thing. The logic works
for most expected cases, though. This includes the case where no
options are given.
Approved by: re (blanket)
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o Recognize the HCDP configuration table.
o Dump the GUID of tables we don't recognize.
Approved by: re (carte blanche)
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EFI has defined CHAR16.
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Approved by: re (blanket)
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a boot option. When the timer expires the machine is rebooted.
Disable the watchdog timer for 2 reasons:
o We're an interactive program. We cannot guarantee that we've
booted the kernel in the time available to us. There have been
situations where netbooting the right kernel took 2 tries and
more time than given. Not to speak of the normal behaviour to
have the loader sitting at the prompt while the user is off
doing other things (such as figuring out what to type next ;-)
o We may not boot a kernel at all. We may exit as the result of
the user typing quit (assuming it took less than 5 minutes to
type it :-). It is documented that loaders should have disabled
the watchdog timer if they return to the boot manager. Not doing
so would cause a reboot while in the boot manager. This appears
to be harmless, besides of course the actual reboot.
Approved by: re (weisse karte)
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the signaled state of the apropriate event. As a side-effect of
checking the event, it's signaled state is cleared if it was set.
In efi_cons_getchar we used to wait for the apropriate event to be
signaled before reading a character. This however does not work if
we poll before reading the characteri, such as during autoboot. On
a more compliant EFI implementation this resulted in the behaviour
that hitting a key during autoboot would stop the countdown, but
would then wait for a new character to arrive instead of reading
the already pending key that stopped the countdown.
The correct behaviour for efi_cons_getchar is to try to read a key
and if none is pending, to wait for the apropriate event to signal
the arrival of a new key.
Note that with the previous behaviour, the second key would determine
how the autoboot was interrupted. This would indicate that the first
key got lost. This indicates that EFI does not necessarily maintain
a queue of pending keys. FWIW...
Approved by: re (carte blanche)
French corrected by: various people :-)
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Previous kernels unwantingly depended on this mapping, but as
of version 1.123 of src/sys/ia64/ia64/machdep.c this dependency
has been removed. Consequently, one has to update the kernel
before updating the loader. The documented/recommended upgrade
will suffice in this case.
Due to a visible (from the kernels point of view) change in
behaviour, bump the loader version number from 0.3 to 1.0.
Approved by: re (carte blanc)
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o Show the contents of the AP wakeup descriptor when dumping SAL
information.
o Increase S/N ratio when listing the itr and dtr. Only show valid
mappings and give the total number of TRs.
Approved by: re (blanket)
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