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* arch/x86: Move prologue to .init sectionKyösti Mälkki2021-01-071-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | For arch/x86 the realmode part has to be located within the same 64 KiB as the reset vector. Some older intel platforms also require 4 KiB alignment for _start16bit. To enforce the above, and to separate required parts of .text without matching *(.text.*) rules in linker scripts, tag the pre-C environment assembly code with section .init directive. Description of .init section for ELF: This section holds executable instructions that contribute to the process initialization code. When a program starts to run, the system arranges to execute the code in this section before calling the main program entry point (called main for C programs). Change-Id: If32518b1c19d08935727330314904b52a246af3c Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/47599 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
* cpu/intel/microcode: Mark assemblycode as 32bitPatrick Rudolph2020-12-011-0/+1
| | | | | | | | | | | | | | Allows to compile the file under x86_64 without errors. The caller has to make sure to call the functions while in protected mode, which is usually the case in early bootblock. Change-Id: Ic6d98febb357226183c293c11ba7961f27fac40c Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/48164 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
* treewide: Remove "this file is part of" linesPatrick Georgi2020-05-111-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Stefan thinks they don't add value. Command used: sed -i -e '/file is part of /d' $(git grep "file is part of " |egrep ":( */\*.*\*/\$|#|;#|-- | *\* )" | cut -d: -f1 |grep -v crossgcc |grep -v gcov | grep -v /elf.h |grep -v nvramtool) The exceptions are for: - crossgcc (patch file) - gcov (imported from gcc) - elf.h (imported from GNU's libc) - nvramtool (more complicated header) The removed lines are: - fmt.Fprintln(f, "/* This file is part of the coreboot project. */") -# This file is part of a set of unofficial pre-commit hooks available -/* This file is part of coreboot */ -# This file is part of msrtool. -/* This file is part of msrtool. */ - * This file is part of ncurses, designed to be appended after curses.h.in -/* This file is part of pgtblgen. */ - * This file is part of the coreboot project. - /* This file is part of the coreboot project. */ -# This file is part of the coreboot project. -# This file is part of the coreboot project. -## This file is part of the coreboot project. --- This file is part of the coreboot project. -/* This file is part of the coreboot project */ -/* This file is part of the coreboot project. */ -;## This file is part of the coreboot project. -# This file is part of the coreboot project. It originated in the - * This file is part of the coreinfo project. -## This file is part of the coreinfo project. - * This file is part of the depthcharge project. -/* This file is part of the depthcharge project. */ -/* This file is part of the ectool project. */ - * This file is part of the GNU C Library. - * This file is part of the libpayload project. -## This file is part of the libpayload project. -/* This file is part of the Linux kernel. */ -## This file is part of the superiotool project. -/* This file is part of the superiotool project */ -/* This file is part of uio_usbdebug */ Change-Id: I82d872b3b337388c93d5f5bf704e9ee9e53ab3a9 Signed-off-by: Patrick Georgi <pgeorgi@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/41194 Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
* src/cpu: Use SPDX for GPL-2.0-only filesAngel Pons2020-04-041-12/+2
| | | | | | | | | | Done with sed and God Lines. Only done for C-like code for now. Change-Id: I2adf28d805fe248d55a9514f74c38280c0ad9a78 Signed-off-by: Angel Pons <th3fanbus@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/40049 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
* AUTHORS: Move src/cpu/intel copyrights into AUTHORS fileMartin Roth2019-09-101-2/+0
| | | | | | | | | | | | | | As discussed on the mailing list and voted upon, the coreboot project is going to move the majority of copyrights out of the headers and into an AUTHORS file. This will happen a bit at a time, as we'll be unifying license headers at the same time. Signed-off-by: Martin Roth <martin@coreboot.org> Change-Id: I39f52764dc377c25953ef5dba16982a0b4637cdb Reviewed-on: https://review.coreboot.org/c/coreboot/+/35181 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: David Guckian Reviewed-by: Patrick Georgi <pgeorgi@google.com>
* cpu/intel/microcode_asm.S: Fix reading cpuid(1) and checking PFArthur Heymans2019-01-091-7/+6
| | | | | | | | | | | | The value of %ebx was clobbered later on by a cpuid call. A bitwise and needs to be used to check processor flags. Change-Id: I29f1fddfe3cc2cbfc7c843b6aff7425f32e12317 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/30680 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
* arch/x86: Link walkcbfs.S instead of including itArthur Heymans2019-01-081-1/+6
| | | | | | | | | | | | | Link walkfcbfs.S in the C_ENVIRONMENT_BOOTBLOCK case and also in the romstage. This is useful for cbfs access in pre-CAR environments. Change-Id: I9a17cdf01c7cbc3c9ac45ed1f075731f3e32f64b Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/30681 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
* src/cpu/microcode: Add code to update microcode in assemblyArthur Heymans2018-12-311-0/+162
Add code to update microcode from cbfsfiles using assembly. Change-Id: I8bd192f3f345651db0010239f99293ae63b00652 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/27091 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Rudolph <siro@das-labor.org> Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
generated by cgit v1.2.3 (git 2.46.0) at 2025-04-29 11:00:34 +0000