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coreboot-kgpe-d16/util/cbfstool/linux_trampoline.c

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cbfstool: autocreate trampoline Add the code necessary to create the linux trampoline blob. Don't enforce this for the in-coreboot build or use objcopy to produce linux_trampoline.o as it is a bit trickier to get all the details right than I had hoped: - you have to know the elf architecture of the host machine - you might have to have more tools (xxd, perl, etc) installed Change-Id: I9b7877c58d90f9fb21d16e0061a31e19fffa2470 Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-on: https://review.coreboot.org/12505 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
2015-11-20 17:58:59 +01:00
/* This file is automatically generated. Do not manually change */
util/cbfstool: Add SPDX header to generated linux_trampoline code, too Change-Id: Id84244bb0c54326ea27be8801246fdeff039fb63 Signed-off-by: Patrick Georgi <pgeorgi@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/41218 Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-05-10 20:45:08 +02:00
/* SPDX-License-Identifier: GPL-2.0-only */
cbfstool: remove trampoline_start and trampoline_size It's not needed, so we can remove some extra file mangling, too. Change-Id: I80d707708e70c07a29653258b4cb6e9cd88d3de3 Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-on: https://review.coreboot.org/12508 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
2015-12-02 02:58:08 +01:00
unsigned char trampoline[] = {
cbfstool: autocreate trampoline Add the code necessary to create the linux trampoline blob. Don't enforce this for the in-coreboot build or use objcopy to produce linux_trampoline.o as it is a bit trickier to get all the details right than I had hoped: - you have to know the elf architecture of the host machine - you might have to have more tools (xxd, perl, etc) installed Change-Id: I9b7877c58d90f9fb21d16e0061a31e19fffa2470 Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-on: https://review.coreboot.org/12505 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
2015-11-20 17:58:59 +01:00
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linux_trampoline: Handle 64-bit framebuffer addresses To support full 64-bit addresses, there is a new field `ext_lfb_base` since Linux 4.1. It is unclear, however, how a loader is supposed to know if the kernel is compatible with this. Filling these previously reserved bits doesn't hurt, but an old kernel would probably ignore them and not know that it's handling a clipped, invalid address. So we play safe, and only allow 64-bit addresses for kernels after the 2.15 version bump of the boot protocol. Change-Id: Ib20184cf207f092062a91ac3e6aa819b956efd33 Signed-off-by: Nico Huber <nico.h@gmx.de> Co-authored-by: Bill XIE <persmule@hardenedlinux.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/76479 Reviewed-by: Bill XIE <persmule@hardenedlinux.org> Reviewed-by: Tim Wawrzynczak <inforichland@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2023-07-14 23:15:17 +02:00
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cbfstool: autocreate trampoline Add the code necessary to create the linux trampoline blob. Don't enforce this for the in-coreboot build or use objcopy to produce linux_trampoline.o as it is a bit trickier to get all the details right than I had hoped: - you have to know the elf architecture of the host machine - you might have to have more tools (xxd, perl, etc) installed Change-Id: I9b7877c58d90f9fb21d16e0061a31e19fffa2470 Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-on: https://review.coreboot.org/12505 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
2015-11-20 17:58:59 +01:00
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cbfstool/linux_trampoline.S: Fix up the e820 table The e820 type don't fully match the LB_TAG_MEMORY types, so change all unknown types to e820 to '2', reserved memory. TESTED with Linuxboot: e820 now shows the CBMEM region as reserved. Change-Id: Ie0e41c66e002919e41590327afe0f543e0037369 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/55074 Reviewed-by: Patrick Rudolph <patrick.rudolph@9elements.com> Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com> Reviewed-by: Rocky Phagura Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2021-05-29 20:07:42 +02:00
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linux_trampoline: Handle 64-bit framebuffer addresses To support full 64-bit addresses, there is a new field `ext_lfb_base` since Linux 4.1. It is unclear, however, how a loader is supposed to know if the kernel is compatible with this. Filling these previously reserved bits doesn't hurt, but an old kernel would probably ignore them and not know that it's handling a clipped, invalid address. So we play safe, and only allow 64-bit addresses for kernels after the 2.15 version bump of the boot protocol. Change-Id: Ib20184cf207f092062a91ac3e6aa819b956efd33 Signed-off-by: Nico Huber <nico.h@gmx.de> Co-authored-by: Bill XIE <persmule@hardenedlinux.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/76479 Reviewed-by: Bill XIE <persmule@hardenedlinux.org> Reviewed-by: Tim Wawrzynczak <inforichland@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2023-07-14 23:15:17 +02:00
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Add a (b)zImage parser to cbfstool In the great tradition of LinuxBIOS this allows adding a kernel as payload. add-payload is extended to also allow adding an initial ramdisk (-I filename) and a command line (-C console=ttyS0). Change-Id: Iaca499a98b0adf0134e78d6bf020b6531a626aaa Signed-off-by: Patrick Georgi <patrick.georgi@secunet.com> Signed-off-by: Patrick Georgi <patrick@georgi-clan.de> Reviewed-on: http://review.coreboot.org/3302 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-08-27 20:22:21 +02:00
};
linux_trampoline: Handle 64-bit framebuffer addresses To support full 64-bit addresses, there is a new field `ext_lfb_base` since Linux 4.1. It is unclear, however, how a loader is supposed to know if the kernel is compatible with this. Filling these previously reserved bits doesn't hurt, but an old kernel would probably ignore them and not know that it's handling a clipped, invalid address. So we play safe, and only allow 64-bit addresses for kernels after the 2.15 version bump of the boot protocol. Change-Id: Ib20184cf207f092062a91ac3e6aa819b956efd33 Signed-off-by: Nico Huber <nico.h@gmx.de> Co-authored-by: Bill XIE <persmule@hardenedlinux.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/76479 Reviewed-by: Bill XIE <persmule@hardenedlinux.org> Reviewed-by: Tim Wawrzynczak <inforichland@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2023-07-14 23:15:17 +02:00
unsigned int trampoline_len = 344;