Commit Graph

1747 Commits

Author SHA1 Message Date
Duncan Laurie d87bbde169 libpayload: i8042: Enable keyboard translation by default on exit
Add a Kconfig option to set the keyboard translation state on exit and
set the default to true.  This restores the keyboard to the power-up
defaults for firmware that does not always run libpayload keyboard init
to have consistent state, and provides an option to disable translation
for keyboards that might need it.

Change-Id: I25dfe3f425a5bb57e97476564886672b707aa3bd
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52737
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by:  Felix Singer <felixsinger@posteo.net>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
2021-05-03 15:55:52 +00:00
Bora Guvendik 5f445f97c2 payloads/depthcharge: Use static_fw_config.h file for depthcharge build
Use static_fw_config.h during depthcharge build to be in line with latest
depthcharge changes on the main branch.
https://chromium-review.googlesource.com/c/chromiumos/platform/depthcharge/+/2523517

BUG=none
TEST=Boot to OS

Signed-off-by: Bora Guvendik <bora.guvendik@intel.com>
Change-Id: I72a681d9321750c392000e11a21d81020dde3fd7
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52403
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Meera Ravindranath <meera.ravindranath@intel.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Varshit B Pandya <varshit.b.pandya@intel.com>
2021-04-23 15:37:45 +00:00
Nico Huber 1f2b5fb201 libpayload/keyboard: Reset to scancode set #2 on exit
If we select scancode set #1 and keep that, it can confuse Linux
with keyboards that don't return to set #2 when asked to load the
defaults. This happens for instance with various integrated Think-
Pad keyboards but was also seen with an external PS/2 one.

The chosen configuration, scancode set #2 without translation, seems
to be the default for many systems. So we can expect other payloads
and kernels to work with it.

Change-Id: I28d74590e9f04d32bb2bbd461b67f15014f927ec
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47594
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2021-04-18 20:45:23 +00:00
Nico Huber 4dc92782fc libpayload/keyboard: Add a detention state
Instead of ignoring keyboards indefinitely when they failed to
initialize, we wait 5s and then start over with the hotplug
detection. As we always assume a present keyboard at first,
we'd otherwise never have a chance to hot plug a device after
the initial 30s timer ran out.

Change-Id: I8dec4921b2e932442d52b5118cdcf27090633498
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48774
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2021-04-18 20:45:02 +00:00
Nico Huber e97d320df2 libpayload/keyboard: Implement hot (un)plugging
While we assume a keyboard is attached, we send an echo command every
500ms. If there is no data coming from the keyboard within 200ms, we
assume it was detached.

Correspondingly, if we assume no keyboard is attached, we run an echo
command once per second.

Change-Id: I2c75182761729bf30711305f3d8b9d43eafad675
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47593
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2021-04-18 20:43:58 +00:00
Mike Banon 40df8aa84b tint: introduce the new tint build system with checksum verification
Three stages of the new tint build system:

 1) generate_core.sh extracts the core part from buildgcc script,
     most importantly the checksum calculation/verification functions.

 2) tintify_core.sh adds the tint-specific footer/header to the core,
     such as the properties of current version including its checksum.

 3) tint.sh - generated and "tintified" core script - builds a tint.

Signed-off-by: Mike Banon <mikebdp2@gmail.com>
Change-Id: Ib71f5b861ecf91949a5af12812258e60873f0498
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50991
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2021-04-16 06:49:18 +00:00
T Michael Turney 0ce7f4da70 libpayload: Support herobrine
BUG=b:182963902
TEST= validated on qualcomm sc7280 developement board

Change-Id: Ic28f02cdf5c0e4c2458aee0ad7c74383c88d8874
Signed-off-by: Ravi Kumar Bokka <rbokka@codeaurora.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51621
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Shelley Chen <shchen@google.com>
2021-04-15 19:08:23 +00:00
Meera Ravindranath 5c9bacca32 payloads/external/dc: Update depthcharge branch from master to main
Signed-off-by: Meera Ravindranath <meera.ravindranath@intel.com>
Signed-off-by: Balaji Manigandan B <balaji.manigandan@intel.com>
Change-Id: Ice0b908b23921cd9afbef52d2471f5ded277a136
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51280
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Selma Bensaid <selma.bensaid@intel.com>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2021-04-15 10:54:27 +00:00
Matt DeVillier 544d7e2b91 payloads/tianocore: Fix compilation for UEFIPAYLOAD option
Upstream edk2 dropped separate 32-bit support for UefiPayloadPkg, and
removed the architecture suffix from the package dsc filename.

Test: build/run qemu with CONFIG_TIANOCORE_UEFIPAYLOAD selected.

Change-Id: I40077f1d370f0cb5627645b305b57e6c71e44095
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52191
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2021-04-10 20:24:50 +00:00
Alexander Couzens 605c6da4e4 payloads/LinuxBoot: make linux kernel build reproducible
Reproducible builds have to be independent from user, host,
domain, time.
Taken from OpenWrt (GPL2).

Change-Id: I420588acc66647051c08e4da6fbedc205cd62877
Signed-off-by: Alexander Couzens <lynxis@fe80.eu>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35393
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2021-04-09 06:09:59 +00:00
Thomas Heijligen fffc21d3dc libpayload/storage: Add NVMe driver
Tested with qemu virtual NVMe and Intel hardware. Works with FILO.

Change-Id: Ie75b1dc743dac3426c230c57ee23b771ba3a6e0c
Signed-off-by: Thomas Heijligen <thomas.heijligen@secunet.com>
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/33582
Reviewed-by:  Felix Singer <felixsinger@posteo.net>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2021-04-07 10:58:04 +00:00
Alexander Couzens 6e4e6207f1 payloads/LinuxBoot/u-root: add boot template to u-root
Without the boot template, u-root doesn't include any boot commands.
Booting other OS is impossible.

Signed-off-by: Alexander Couzens <lynxis@fe80.eu>
Change-Id: I7d0742d115715eb40e293e2a8711d1ff20d8970a
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51331
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: ron minnich <rminnich@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2021-03-14 02:41:56 +00:00
Patrick Georgi 9de060fd34 libpayload: Use volatile pointers in {read,write}{8,16,32,64}
This is already the case on x86 but not on the ARM platforms, and
{read,write}[bwl] are using volatile pointers, too, so follow suit.

Change-Id: I6819df62016990e12410eaa9c3c97b8b90944b51
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50918
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2021-02-20 17:01:09 +00:00
Martin Roth 5c7341331d treewide: Remove trailing whitespace
Remove trailing whitespace in files that aren't typically checked.

Signed-off-by: Martin Roth <martin@coreboot.org>
Change-Id: I8dfffbdeaadfa694fef0404719643803df601065
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50704
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2021-02-17 17:30:05 +00:00
Mike Banon f124939945 tint: update the patch version numbers according to a new tint version
Rebase the libpayload_tint.patch to update its internal version
numbers from 0.04+nmu1 to 0.05.

Signed-off-by: Mike Banon <mikebdp2@gmail.com>
Change-Id: I91f780f80026147c3c35330625a4106c65a1ddf0
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50468
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2021-02-15 08:17:51 +00:00
Mike Banon f238ead6f1 tint: update the archive from 0.04+nmu1 to 0.05
Old archive is not available anymore. The tint sources inside the new
archive are the same (something changed in a debian subdirectory but
we aren't using it), so a libpayload_tint.patch is still valid.

Signed-off-by: Mike Banon <mikebdp2@gmail.com>
Change-Id: If556fac7d1d8379a022f59ed6aee1450b7bc5aa7
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48616
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2021-02-07 22:00:23 +00:00
Nico Huber b726e09157 payloads: Force sub-make runs for in-tree payloads
The sub-process calls break make's dependency tracking, hence we have
to always perform the calls if we want to allow automatic, incremental
builds.

We let each rule depend on a new, phony target `force-payload`. It has
roughly the same effect as tagging all the targets as phony, but doing
so would feel wrong as some of them are actual files.

Change-Id: I1bc2406db371e8dddbfdf71f68a6665a5b558f5e
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47638
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2021-02-07 16:31:56 +00:00
Nico Huber a7d3293886 payloads: Pass $(CCACHE) on to in-tree payloads
Change-Id: Ie15aec4059fbeb99f714c3d674df5fabdb7c081c
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47637
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2021-02-07 16:27:07 +00:00
Nico Huber dd11bf9fe3 nvramcui: Use libpayload's new `Makefile.payload`
Change-Id: I34bf659c1a069ccc27ca613bbf86780d4da49259
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47636
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2021-02-07 16:23:33 +00:00
Nico Huber 552163ef79 coreinfo: Use libpayload's new `Makefile.payload`
Change-Id: I388d60e6f3aeb2184966152f0934845d42834de0
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47634
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2021-02-07 16:22:56 +00:00
Nico Huber 9c8f0424d6 libpayload: Add a Makefile for in-tree payloads
The new `Makefile.payload` can be included by the Makefiles of pay-
loads for in-tree builds. The basic idea is to use libpayload's
build results without the `make install` step, and to ensure that
incremental builds work. For instance, if libpayload's code changes,
a `make` for the payload would automatically update the libpayload
build and rebuild the payload. But if there are no code changes in
libpayload, only updated files of the payload will be re-built.

The configuration of libpayload is supposed to be automatically
generated from a `defconfig` file. If this `defconfig` changes,
libpayload and the payload will be re-built.

Change-Id: If5319f1bf0bcd09964416237c5cf7f8e59f487a2
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47633
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2021-02-07 16:22:45 +00:00
Nico Huber 30570a7de1 nvramcui: Unexport COREBOOT_EXPORTS
coreboot's Makefile exports a lot of variables that influence make sub-
processes (e.g. for Kconfig). We don't want these variables leak into
sub-processes for (lib)payload builds, hence unexport them.

Change-Id: I8da2d8db6238d456723b9c22bee80c62e97027b0
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48940
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by:  Felix Singer <felixsinger@posteo.net>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2021-02-07 16:11:32 +00:00
Nico Huber 1132600478 coreinfo: Unexport COREBOOT_EXPORTS
coreboot's Makefile exports a lot of variables that influence make sub-
processes (e.g. for Kconfig). We don't want these variables leak into
sub-processes for (lib)payload builds, hence unexport them.

Change-Id: I7d65c0aa6d4550bd6600c437e838339af69496da
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48939
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2021-02-07 16:11:19 +00:00
Arthur Heymans 372766f26b payloads/external/FILO: Pass Libpayloads path on the clean target
FILO's Makefile will check for libpayload and might not even `clean`
if it's not found.

Change-Id: If5f8f4ecce317e54cd4b5688553cc38220f6e6df
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36461
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
2021-02-06 18:55:54 +00:00
Elyes HAOUAS 9c55c37a18 payloads/libpayload/arch/arm64/mmu.c: Fix typo in comment
Change-Id: Ieb10a881ef1d983f11318f0f6934491fd19fd0bf
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50268
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
2021-02-05 09:40:39 +00:00
Elyes HAOUAS 00b5f53361 treewide [Kconfig]: Remove useless comment
Change-Id: I3dafffa61f4fe6089fd11ef6579626aff8088df5
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50185
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2021-02-02 13:49:49 +00:00
Patrick Georgi 60f5328c7d libpayload/arm*: Add 64bit memory access primitives
Add read64 and write64 for consistency with x86.

BUG=b:178785769

Change-Id: I342e3a23201d0b804ea5ecfe47ee3e4bb516de4c
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50115
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
2021-01-30 20:17:47 +00:00
Patrick Georgi 2cc5bcbf7f build system: Always add coreboot.pre dependency to intermediates
They all operate on that file, so just add it globally.

Change-Id: I953975a4078d0f4a5ec0b6248f0dcedada69afb2
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49380
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Julius Werner <jwerner@chromium.org>
2021-01-15 23:54:09 +00:00
Patrick Georgi d6eb72c87e build system: Structure and serialize INTERMEDIATE
Target added to INTERMEDIATE all operate on coreboot.pre, each modifying
the file in some way. When running them in parallel, coreboot.pre can be
read from and written to in parallel which can corrupt the result.

Add a function to create those rules that also adds existing
INTERMEDIATE targets to enforce an order (as established by evaluation
order of Makefile.inc files).

While at it, also add the addition to the PHONY target so we don't
forget it.

BUG=chromium:1154313, b:174585424
TEST=Built a configuration with SeaBIOS + SeaBIOS config files (ps2
timeout and sercon) and saw that they were executed.

Change-Id: Ia5803806e6c33083dfe5dec8904a65c46436e756
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49358
Reviewed-by: Martin Roth <martinroth@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2021-01-14 16:53:06 +00:00
Nico Huber 92675d6723 nvramcui: Make local render_form() function static
Allows us to build with `-Wmissing-prototypes`.

Change-Id: I722b41e515ee472697028a912b9136ce59611051
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47635
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2021-01-13 12:14:11 +00:00
Nico Huber 712ca31933 libpayload/lpgcc: Drop redundant linker path
It either doesn't exist (in-tree builds) or is the same as $_LIBDIR.

Change-Id: I9551cbfc3295d86c22a3785be7cdc0f65eeb08c4
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47632
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2021-01-11 23:33:03 +00:00
Nico Huber ec70383acc libpayload/lpgcc: Set proper include paths for in-tree builds
We only need `$_OBJ` in the include path for in-tree builds. Also,
curses only need special handling for those and PDCurses turned out
to need many more include paths.

Change-Id: Idd29ef33065033e26ba61b09d412d8ca3566d643
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47631
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2021-01-11 23:32:32 +00:00
Nico Huber 3e0b3f17af libpayload/lpgcc: Add more variables to support in-tree builds
Add $_DOTCONFIG and $_XCOMPILE pointing to the respective files and
use them.

Change-Id: I719b42d1c8abf055948daf5b000daa30cd249edd
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47630
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2021-01-11 23:31:45 +00:00
Arthur Heymans c6bdabd983 payloads/external: Update cbfs-ints with CONFIG_UPDATE_IMAGE
Change-Id: Icfbfff3ba680a85eb2f683867064b19f40b9d40f
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48898
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2021-01-08 08:09:08 +00:00
Arthur Heymans 17c951b2c4 */Makefile.inc: Add some INTERMEDIATE targets to .PHONY
Change-Id: I125e40204f3a9602ee5810d341ef40f9f50d045b
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48897
Reviewed-by: Idwer Vollering <vidwer@gmail.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2021-01-08 08:08:07 +00:00
Nico Huber 9d233ba9a9 libpayload/lpgcc: Check for `libpayload.config` for in-tree builds
Instead of checking for an already fully build `libpayload.a`, we check
for the `libpayload.config` which is the actual prerequisite to start
using `lpgcc`. This will allow compilation of payload sources before or
in parallel with the build of `libpayload.a`.

Change-Id: Ic0143fefe33560af8b013ae48bbbe231b3ad46f3
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48938
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
2021-01-01 21:42:41 +00:00
Nico Huber dc5c83812b libpayload/lpgcc: Turn references to build dir into a variable
Introduce a `$_OBJ` variable, that points to the build directory for
in-tree usage of `lpgcc`. If unset, the default `../build` relative
to the location of `lpgcc` is used.

Change-Id: I35112d7533d69aa51252dd2bceec010a62522403
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47629
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2021-01-01 21:41:48 +00:00
Nico Huber 1dba2ed806 libpayload: Keep a copy of .config in the build dir
This should make it easier to find the correct config for in-tree
builds.

Change-Id: I08d396ae3cedc65f63c4b8865701ea123c7d56cb
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47628
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2021-01-01 21:31:29 +00:00
Nico Huber 1823d53cbf libpayload: Move .xcompile into $(obj)
Keep libpayload's xcompile in its build dir. While we are at it,
align things with the top-level version.

Having `.xcompile` in a central place led to race conditions when
multiple payloads try to build their own libpayloads in parallel.

Change-Id: I504e1862db79b368289867f7568c9169f27a1549
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47651
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2021-01-01 21:30:44 +00:00
Matt DeVillier 4b9b44696d payloads/tianocore: Clean up build string
Extract the architecture (-a) and package (-p) options into a
new variable (ARCH) to simplify the construction of BUILD_STR.

Test: build/boot various boards w/Tianocore payload

Change-Id: I490d48428ac56d613d0b704700dfcf4ebfb2d245
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48942
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-12-30 01:27:51 +00:00
Matt DeVillier 61a3c8a005 payloads/tianocore: Add Kconfig to set boot timeout
Add a Kconfig option to set the tianocore boot timeout,
which is passed to the payload via a command line parameter.

Allows boards without an internal display (eg) to set a longer
boot timeout, in order to ensure the boot splash/menu prompt
are visible upon boot.

The associated changes on the tianocore side have already been
merged into MrChromebox's CorebootPayloadPkg and UefiPayloadPkg
branches (coreboot_fb and uefipayloadpkg respectively).

Change-Id: Ifeaadff05f6667d642c05b81f53c1d2dbc450af6
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48861
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
2020-12-28 16:47:59 +00:00
Nico Huber 4f7b687fb7 libpayload/i8042: Add API to peek on keyboard input queue
Change-Id: I60699e044b5bacd3f5292fed7edbf529ae133284
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47592
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-12-24 08:29:18 +00:00
Nico Huber 6e021d31f9 libpayload/keyboard: Add debug output to all state transitions
Change-Id: I643a821d4c41fc068f2bab0bd571b0a4a359f59a
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47591
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2020-12-24 08:29:07 +00:00
Nico Huber b2569eaa82 libpayload/keyboard: Hide console output by default
Change-Id: I855d975a4729da34a6fa73a63dbbd12c856bdc00
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47590
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2020-12-24 08:20:32 +00:00
Nico Huber e9c572f203 libpayload/keyboard: Implement self-test
The keyboard self-test is required for some devices. At least one
device (integrated keyboard in a ThinkPad X201) actually starts the
test automatically leading to spurious output and no response for
the first seconds.

We wait up to 5s for the self-test result. On failure or timeout,
the command will be repeated until the 30s init timer runs out. This
happens all in the background of the UI polling loop.

To not unnecessarily delay the boot process, we first try an oppor-
tunistic initialization which skips the self-test.

Change-Id: Ie07b31e74d06e116ac81e76309621eed39a19b49
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47088
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2020-12-24 08:20:16 +00:00
Nico Huber 777c599747 libpayload/keyboard: Add timestamp to track time spent in a state
Will be used to time out in states that don't always advance.

Change-Id: I28235e7638d8157cedf81fd915a41d28a1fc070b
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47087
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-12-24 08:20:01 +00:00
Nico Huber 260dd9eb7e libpayload/keyboard: Turn init sequence into a state machine
We'll process the init sequence as part of the polling loop. This
should have several advantages:

* It eases error handling, i.e. we can return to an earlier state.
* We don't have to stall initialization when a keyboard takes a
  little longer.
* Generally, these keyboards can be hot-plugged (albeit not by
  design).

Change-Id: I9cf5cf31eb420b3994bec20e56a72d37f3d2996e
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47086
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2020-12-24 08:19:48 +00:00
Nico Huber 828f6b428e libpayload/keyboard: Avoid races around input draining
Draining the keyboard's buffer is only possible when the keyboard
port is enabled. We should also disable input scanning before, as
the buffer could be filled again with new keystrokes otherwise.

Change-Id: Ibac9c0d04880ff4a3efda5ac53da2f9731f6602c
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47085
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2020-12-24 08:19:18 +00:00
Nico Huber f7faac151a libpayload/keyboard: Introduce keyboard_drain_input()
Move the input-buffer draining into a function. It uses the low-level
i8042 API directly to avoid conflicts with changes in the high-level
keyboard API.

Change-Id: I9427c5b8be4d59c2ee3da12d6168d34590043682
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47084
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-12-24 08:18:57 +00:00
Nico Huber a160d93dda libpayload/keyboard: Revise keyboard_cmd() error handling
Even if we are careful, it's still possible that we read spurious
data from the keyboard, e.g. keystrokes. Namely, when we send the
reset/disable command, there is a race before the command is pro-
cessed.

So we should always process data from the keyboard in a loop. We
break it, when an ACK (0xfa) or a NAK (0xfe) is received, and warn
on unexpected data unless it might be due to the mentioned race.

This also gives us the opportunity to use command-specific timeouts
which we take from Linux: 1s for the keyboard self-test (as there
are keyboards that perform the test before acking the command) and
200ms for all other commands.

Change-Id: I60a2643a8ff4b9231c63bf970c8749c97c7d8926
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47083
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2020-12-24 08:18:41 +00:00
Nico Huber a69d682a0b libpayload/keyboard: Revise scancode set and translation config
Some background first: The original XT keyboards used what we call
scancode set #1 today. The PC/AT keyboards introduced scancode set #2,
but for compatibility, its controller translated scancodes back to
set #1 by default. Newer keyboards (maybe all we have to deal with)
also support switching the scancode set.

This means the translation option in the controller and the scancode
set selection in the keyboard have to match. In libpayload, we only
support set #1 scancodes. So we either need the controller's trans-
lation on and set #2 selected in the keyboard, or the controller's
translation off and set #1 selected in the keyboard.

Valid configurations:
* SET #1 + XLATE off
* SET #2 + XLATE on

Both with and without the PC_KEYBOARD_AT_TRANSLATED option, we were
only configuring one of the two settings, leaving room for invalid
configurations. With this change, we try to select scancode set #2
first, which seems to be the most supported one, and configure the
controller's translation accordingly. We try to fall back to set #1
on failure.

We also keep translation disabled during configuration steps to
ensure that the controller doesn't accidentally translate confi-
guration data.

On the coreboot side, we leave the controller's translation at its
default setting, unless DRIVERS_PS2_KEYBOARD is enabled. The latter
enables the translation unconditionally. For QEMU this means that
the option effectively toggles the translation, as QEMU's controller
has it disabled by default. This probably made a lot of earlier
testing inconsistent.

Fixes: commit a95a6bf646 (libpayload/drivers/i8402/kbd: Fix qemu)
       The reset introduced there effectively reverted the scancode
       selection made before (because 2 is the default). It's unclear
       if later changes to the code were only necessary to work
       around it.

Change-Id: Iad85af516a7b9f9c0269ff9652ed15ee81700057
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46724
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2020-12-23 03:29:32 +00:00
Nico Huber 0e1d19baa6 libpayload/i8042: Add API to get/set kbd translation state
Change-Id: I49aa1c244cb60ea290df102f06f641c765f59fa5
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47589
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2020-12-23 03:29:16 +00:00
Furquan Shaikh 493937e1d6 coreboot tables: Add SPI flash memory map windows to coreboot tables
This change adds details about the memory map windows to translate
addresses between SPI flash space and host address space to coreboot
tables. This is useful for payloads to setup the translation using the
decode windows already known to coreboot. Until now, there was a
single decode window at the top of 4G used by all x86
platforms. However, going forward, platforms might support more decode
windows and hence in order to avoid duplication in payloads this
information is filled in coreboot tables.

`lb_spi_flash()` is updated to fill in the details about these windows
by making a call to `spi_flash_get_mmap_windows()` which is
implemented by the driver providing the boot media mapping device.

BUG=b:171534504

Signed-off-by: Furquan Shaikh <furquan@google.com>
Change-Id: I00ae33d9b53fecd0a8eadd22531fdff8bde9ee94
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48185
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-12-08 22:56:09 +00:00
Meng-Huan Yu c9655468e8 libpayload: Provide API to expose MMU memery ranges for ARM64
Provide get_mmu_ranges() for ARM64 to let payloads could get
MMU ranges for all used memory regions.

BUG=b:171858277
TEST=Build in x86, arm, arm64.
  emerge-zork libpayload depthcharge
  emerge-nyan libpayload depthcharge
  emerge-asurada libpayload depthcharge

Signed-off-by: Meng-Huan Yu <menghuan@google.com>
Change-Id: I39b24aefc9dbe530169b272e839d0e1e7c697742
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48113
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
2020-12-05 09:45:34 +00:00
Caveh Jalali 6de5bf6698 libpayload/usb: Add format string checking to usb_debug
This turns on the compiler's printf style format string checker.

BUG=b:167517417
TEST=enabled all USB controllers on volteer and fixed resulting
	compiler errors when USB_DEBUG is enabled.

Change-Id: Ic94ebcbafdde8a5f79278b5635111b99af40f892
Signed-off-by: Caveh Jalali <caveh@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45025
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-11-22 22:34:55 +00:00
Caveh Jalali 8079a6a558 libpayload/usb: Fix printf format string mismatches in debug messages
This fixes format string mismatch errors in the USB subsystem found by
the compiler's format string checker.

BUG=b:167517417
TEST=enabled all USB controllers on volteer and fixed resulting
	compiler errors when USB_DEBUG is enabled.

Change-Id: I4dc70baefb3cd82fcc915cc2e7f68719cf6870cc
Signed-off-by: Caveh Jalali <caveh@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45024
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
2020-11-22 22:34:52 +00:00
Angel Pons 2687d37a3c payloads/external: Fix up SPDX license headers
Remove copyright notices and other unnecessary churn.

Change-Id: Ie69cc121d2b6eed95aa3cbaa7215d61880148858
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47815
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Martin Roth <martinroth@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-11-22 22:19:19 +00:00
Angel Pons 6d4de7eef9 payloads/external/Makefile.inc: Fix SeaBIOS option regressions
Commit 14ca740719 (Makefile.inc: Move adding SeaBIOS cbfs config files)
introduced various regressions that were not spotted during review.

TEST=Building with SEABIOS_THREAD_OPTIONROMS is working properly again.

Change-Id: I4de0b11747e3df8dd31a85160add129d8cc6bd8a
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47814
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-11-22 22:18:54 +00:00
Arthur Heymans 14ca740719 Makefile.inc: Move adding SeaBIOS cbfs config files
Using the INTERMEDIATE target this can be done in the proper dir.

Change-Id: Ie105231655ef4b49234f0944f638545fe79f07cb
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46415
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2020-11-16 12:13:18 +00:00
Nico Huber 0748a87455 libpayload/i8042: Increase response timeout to 1.5s
The current timeout of 500ms is too low. For instance self-test
of the KBC integrated into IT8516E took almost 1s in tests. We
already check for presence of the KBC before the self-test. So
the timeout should only trigger on a hardware defect and we can
leave some margin.

Change-Id: I95f01a4e605a9c7deb894a71e102c3a881759bb1
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47588
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2020-11-16 11:08:49 +00:00
Julius Werner 9c50462fd7 Delete mainboard/google/cheza
Work on this mainboard was abandoned and never finished. It's not really
usable in its current state, so let's get rid of it.

Signed-off-by: Julius Werner <jwerner@chromium.org>
Change-Id: I4cd2e2cd0ee69d9846472653a942fa074e2b924d
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47427
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2020-11-12 01:43:09 +00:00
Thomas Heijligen e569e3e248 libpayload: storage.c: remove unneeded #if CONFIG()
Change-Id: I6e5679f66840105b3f9628071ac7aace9128107f
Signed-off-by: Thomas Heijligen <thomas.heijligen@secunet.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47248
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
2020-11-09 07:23:20 +00:00
Jacob Garber 85d93ffc0a libpayload: Make OHCI enums into types
The OHCI header file declares various enums as follows:

    enum { ... } enum_name;

Since the name is at the end, this is actually declaring a variable
called enum_name and *not* a type, which is causing a multiple
definition error in GCC 10. Move the enum_name before the opening brace
to prevent this.

Signed-off-by: Jacob Garber <jgarber1@ualberta.ca>
Change-Id: I452c0a1b118990942aa53f1e7e77f5e8378e8975
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47224
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Nico Huber <nico.h@gmx.de>
2020-11-08 11:37:09 +00:00
Jacob Garber c98baa7a80 libpayload: Add compiler.h to compiler parameters
Headers in libpayload define various structs like so:

    struct struct_name { ... } __packed;

However, these header files do not include the compiler.h macro that
defines what __packed is, so they are actually defining a variable named
__packed and *not* declaring a packed struct. This leads to defining the
same variable multiple times, which was caught by GCC 10. Add compiler.h
to the compiler parameters so it is included in all files automatically.

Signed-off-by: Jacob Garber <jgarber1@ualberta.ca>
Change-Id: Ia67182520dc94149e06fe9e03a14b3fc2ee29973
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47153
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
2020-11-08 11:37:04 +00:00
Jacob Garber 5e6c30bc42 coreinfo: Add support for link time optimization
This introduces a Kconfig option for compiling coreinfo with LTO.
This option can be used independently of LTO in libpayload, though will
benefit most if that is enabled as well. If both are enabled, the
final size of coreinfo.elf is reduced from 95 KiB to 92 KiB.

Tested in QEMU and on Thinkpad T500.

Change-Id: I6feacdb911b52b946869bff369e03dcf72897c9f
Signed-off-by: Jacob Garber <jgarber1@ualberta.ca>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/38293
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-by: Martin Roth <martinroth@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-11-02 22:10:23 +00:00
Jacob Garber 04540f1549 libpayload: Add support for link time optimization
Link time optimization is a technique for whole-program optimization.
Instead of doing code generation during compilation, the compiler saves
its intermediate representation to the object files. During the final
linking step, it will then merge all the object files together and
perform optimizations on the entire program. This can often reduce the
final binary size, but also may increase the total compilation time.

This patch introduces a Kconfig option for enabling link time
optimization in libpayload. Since libpayload does no linking of its own,
its LTO archive files will contain only IR and no generated code.
Downstream projects will need to use LTO-aware tools when manipulating
the archives (eg. gcc-ar and gcc-nm), but otherwise do not need to use
LTO themselves -- the compiler will recognize which files are LTO and
which are not, so enabling this option should mostly be "drop in".

For example, when building coreinfo.elf using tinycurses libpayload:

		binary size	compilation time
default		114 KiB		11.49s
LTO		95 KiB		10.36s

In this case the total compilation time was actually shorter -- despite
the final linking step taking longer, this was offset by the shorter
compilation times for each individual file (since there is no code gen
until the very end).

Change-Id: I048f2ff6298ed0d891098942e1e8b29d35487b91
Signed-off-by: Jacob Garber <jgarber1@ualberta.ca>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/38291
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Martin Roth <martinroth@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-11-02 22:05:02 +00:00
Nico Huber bc2c12c728 libpayload/x86: Try to discover invariant TSC rate
We can skip the PIT-based TSC calibration if we can derive the invariant
TSC rate from CPUID/MSR data. This is necessary if the PIT is disabled,
which is the default, for instance, on Coffee Lake CPUs.

This implementation should cover all Intel Core i processors at least.
For older processors, we fall back to the PIT calibration.

Change-Id: Ic6607ee2a8b41c2be9dc1bb4f1e23e652bb33889
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34170
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
2020-11-02 06:24:33 +00:00
Nico Huber 5c9d82bd73 libpayload/x86: Add enumeration of Intel family 6 models
The list is incomplete and only contains what we need in the follow-up
commit. It can be extended at will.

Change-Id: Ibf8ddaf510eb513ee74af3e78da46b04802a91b9
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47059
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2020-11-02 06:24:10 +00:00
Tim Wawrzynczak e1a7a26f5e lib/libpayload: Replace strapping_ids with new board configuration entry
There are currently 3 different strapping ID entries in the coreboot
table, which adds overhead. The new fw_config field is also desired in
the coreboot table, which is another kind of strapping id. Therefore,
this patch deprecates the 3 current strapping ID entries (board ID, RAM
code, and SKU ID), and adds a new entry ("board_config") which provides
board ID, RAM code, SKU ID, as well as FW_CONFIG together.

Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: I1ecec847ee77b72233587c1ad7f124e2027470bf
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46605
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
2020-10-30 15:25:28 +00:00
Patrick Georgi 6065f616eb .gitignore: Split into subdirectory files
There's no need for the global list of files to ignore, so use git's
ability to work with more local configuration.

Change-Id: I50882e6756cbc0fdfd899353cc23962544690fb3
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46879
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-by: Christian Walter <christian.walter@9elements.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-10-30 07:05:27 +00:00
Nico Huber e50f546e01 payloads/filo: Set stable tag to something that builds
Also rename the prompt to "tested" to make it more obvious that there
is no really stable version.

Change-Id: Ib719fe5c30783a53ddad2a2dc2d9ecda37a05ac2
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46849
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by:  Felix Singer <felixsinger@posteo.net>
2020-10-28 23:42:45 +00:00
Nico Huber d9e543a5f9 libpayload/keyboard: Use `bool` as return type
Use `bool` whenever `0` was used to indicate an error. The mixing of
different types for return values was mildly confusing and potentially
dangerous with the i8042 API close by that uses `0` for success.

Change-Id: I876bb5076c4921f36e3438f359be8ac4c09248cc
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46723
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2020-10-26 06:57:47 +00:00
Nico Huber f56d65266c libpayload/curses: Use <stdbool.h>
Change-Id: I35ef7c55fc6bcfb9c51a711a8e238f0970fd4ad4
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46722
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2020-10-26 06:57:21 +00:00
Nico Huber bfa46e25e0 libpayload: Add <stdbool.h>
Change-Id: I972c78c5da4136bc61e78fcbb52d7d162cc1b698
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46721
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2020-10-26 06:57:06 +00:00
Patrick Rudolph bc744f5893 drivers/smmstore: Implement SMMSTORE version 2
SMMSTORE version 2 is a complete redesign of the current driver. It is
not backwards-compatible with version 1, and only one version can be
used at a time.

Key features:
* Uses a fixed communication buffer instead of writing to arbitrary
  memory addresses provided by untrusted ring0 code.
* Gives the caller full control over the used data format.
* Splits the store into smaller chunks to allow fault tolerant updates.
* Doesn't provide feedback about the actual read/written bytes, just
  returns error or success in registers.
* Returns an error if the requested operation would overflow the
  communication buffer.

Separate the SMMSTORE into 64 KiB blocks that can individually be
read/written/erased. To be used by payloads that implement a
FaultTolerant Variable store like TianoCore.

The implementation has been tested against EDK2 master.

An example EDK2 implementation can be found here:
eb1127744a

Change-Id: I25e49d184135710f3e6dd1ad3bed95de950fe057
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Signed-off-by: Christian Walter <christian.walter@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40520
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Michał Żygowski <michal.zygowski@3mdeb.com>
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
2020-10-22 12:29:47 +00:00
Felix Singer 09917e10cb libpayload/storage/ahci: Use pci_dev struct in ahci_initialize()
Clean up ahci_initialize() by using pci_dev struct.

Change-Id: I2d5673c631d978d8ebd0c4a90962ab9cccaf40a2
Signed-off-by: Felix Singer <felixsinger@posteo.net>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46427
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
2020-10-20 20:39:30 +00:00
Felix Singer b4b73d4995 libpayload/storage/ahci: Use pacc pointer to read device class
The PCI bus gets already scanned while gathering system information.
Therefore, use the pacc pointer from sysinfo_t to read the device class
of PCI devices instead of rescanning the bus.

Change-Id: I4c79e71777e718f5065107ebf780ca9fdb4f1b0c
Signed-off-by: Felix Singer <felix.singer@secunet.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46416
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
2020-10-20 20:35:47 +00:00
Felix Singer 9e5bc74cc7 libpayload/arch/x86: Introduce pacc pointer in sysinfo_t struct
Currently, the PCI bus gets scanned multiple times for various reasons
(e.g. to read the device class). Therefore, and in preparation to
CB:46416, introduce the pacc pointer in the sysinfo_t struct and scan
the PCI bus while gathering system information.

Change-Id: I496c5a3d78c7fb5d7c9f119a0c9a0314d54e729f
Signed-off-by: Felix Singer <felix.singer@secunet.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46348
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
2020-10-20 20:35:24 +00:00
Felix Singer 6034b0f184 payloads/coreinfo: Rename pci_scan_bus()
Rename pci_scan_bus() since the name is already used in libpayload.

Change-Id: I9d4a842b77f418484e1fcf60a79723480a53e30d
Signed-off-by: Felix Singer <felix.singer@secunet.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46557
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
2020-10-20 20:34:35 +00:00
Felix Singer e92c84050b libpayload/storage: Enable STORAGE_64BIT_LBA
32-bit LBA limits drives, that have or emulate 512B sectors, to 2TiB
capacity. Therefore, enable the 64-bit support.

Change-Id: I663029a2137c5af3c77d576fe27db0b8fa7488a9
Signed-off-by: Felix Singer <felixsinger@posteo.net>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46534
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
2020-10-19 16:07:49 +00:00
Felix Singer 70d73a85bf libpayload/storage: Enable all AHCI controllers by default
Since the list of tested controllers is not actively maintained, enable
all AHCI controllers by default. Also, improve the readability of its
help text by adding a comma to it.

Change-Id: If30f58f8380ab599f8985e85c64510dc88e96268
Signed-off-by: Felix Singer <felixsinger@posteo.net>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46533
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
2020-10-19 16:07:13 +00:00
Felix Singer 4c9622a7d0 libpayload/libpci: Introduce device class attribute in pci_dev
The device class is read at different places and it is read from the
hardware directly. Therefore, and in preparation to CB:46416, introduce
the device class attribute in the pci_dev struct. With this, there is
only one interaction with the hardware and it's also more user friendly.

Change-Id: I5d56be96f3f0da471246f031ea619e3df8e54cfb
Signed-off-by: Felix Singer <felix.singer@secunet.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46347
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-10-17 16:33:55 +00:00
Felix Singer d2ec82d137 libpayload/libpci: Clean up pci_alloc()
Clean up pci_alloc() and return pointer to allocated memory directly.

Change-Id: Ib2ee8dbfaabbf7a824b4fd75ad7c779393af2900
Signed-off-by: Felix Singer <felix.singer@secunet.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46345
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
2020-10-17 16:33:06 +00:00
Nico Huber d32bb116f0 libpayload/x86: Add some more CPUID helpers
Change-Id: Ic88defd30c6d3791a51b78a14135aff55e89394d
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46285
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2020-10-16 22:07:27 +00:00
Angel Pons e0ce60c744 lib and libpayload: Add popcnt functions
Add 32-bit `popcnt` and 64-bit `popcnt64` helpers.

Change-Id: I2e6a1007e475b662a85c067d96f81326e7f02905
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46421
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
2020-10-15 19:01:51 +00:00
Tim Wawrzynczak 7ded1afe0a lib and libpayload: add 64-bit versions of clz, __ffs and log2
Add 64-bit versions of clz, __ffs & log2: `__ffs64`, `__clz64`,
and `log2_64`.

Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: Iefc6e6c51f5b20607c88e38660a499a4f77ce0d0
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45938
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2020-10-14 15:24:59 +00:00
Jeremy Compostella 612ae2ec7c libpayload: use PRIu64 type to print u64
The appropriate way to print a u64 variable regardless of the current
architecture is to use the PRI*64 macros.  libpayload is mostly used
in 32 bits but when ported to other projects and compiled in 64 bits
it breaks the compilation.

Change-Id: I479fd701f992701584d77d43c5cd5910f5ab7633
Signed-off-by: Jeremy Compostella <jeremy.compostella@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45628
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2020-09-30 10:16:44 +00:00
Kyösti Mälkki a7a2784528 libpayload: Fix file permissions
Change-Id: Ibdc211d7f4ec0fbbefafb5eae4c1615c64c99280
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45737
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Idwer Vollering <vidwer@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2020-09-27 13:12:33 +00:00
Zoltan Baldaszti be58923fed payloads/external: add support for BOOTBOOT payload
BOOTBOOT is a multi-platform, architecture agnostic boot protocol.
The protocol describes how to boot an ELF64 or PE32+ executable inside
an initial ram disk image into clean 64 bit mode. This version uses
libpayload to do that. Depending on the lib's configuration, initrd
can be in ROM as a cbfs file or a Flashmap partition; on disk a GPT
partition or a file on a FAT formatted ESP partition.
For more information see https://gitlab.com/bztsrc/bootboot

Change-Id: I8692cde0730338026a7760a293c1e37f66004bc0
Signed-off-by: Zoltan Baldaszti <bztemail@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45482
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
2020-09-26 23:08:07 +00:00
Elyes HAOUAS 690b6bcb49 treewide/Kconfig: Drop unneeded empty lines
Change-Id: If8aa28a22625b7b2cf9b58958de87ee752f637f6
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45247
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
2020-09-21 16:30:14 +00:00
Elyes HAOUAS 3ff7bcf10e payloads: Drop unneeded empty lines
Change-Id: I6faeb7c783052edc4217d2d301dbb905e1fc6a19
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44605
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
2020-09-21 16:20:57 +00:00
Hsuan Ting Chen 8742e2a923 libpayload: free: Separate NULL check out for clarity
Separate the validity check of calling free(NULL) for clarity.

BUG=b:168441735
TEST=emerge-puff libpayload

Change-Id: I0dc355553410bbe59e658945fb40c05f5f709380
Signed-off-by: Hsuan Ting Chen <roccochen@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45465
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
2020-09-19 01:36:57 +00:00
Yu-Ping Wu 541f2f74a3 libpayload: cbgfx: Fix 'equals' counter for Lanczos resampling
The current initialization of the 'equals' counter is incorrect, so that
when 'equals >= SSZ * SSZ', the pixels in the sample array might not be
all the same, leading to a wrong pixel value being set in the
framebuffer.

The 'equals' counter stores the number of latest pixels that were
exactly equal. Within the for loop of 'ox', the sample array is updated
in a column-based order, and the 'equals' counter is updated
accordingly. However, the 'equals' counter is initialized in a row-based
order, which causes it to be set too large than it should be. Consider
the example where sample[sx][sy] are initially:

 [X X X A A A]  // sy = 0
 [X X X B B B]
 [X X X B B B]
 [X X X B B B]
 [X X X B B B]
 [X X X B B B]  // sy = SSZ

Then, the correct implementation will initialize 'equals' to be 15, with
last_equal being B. Suppose all of the remaining pixels are B. Then, at
the end of the 'while (fpfloor(ixfp) > ix)' loop when ix = 4, or
equivalently after 4 more columns of sample are updated, 'equals' will
be 15 + 6 * 4 = 39, which is greater than SSZ * SSZ = 36, but we can see
there are still 2 A's in the sample:

 [B B B B A A]
 [B B B B B B]
 [B B B B B B]
 [B B B B B B]
 [B B B B B B]
 [B B B B B B]

Therefore, we must also initialize the 'equals' counter in a
column-based order.

BUG=b:167739127
TEST=emerge-puff libpayload
TEST=Character 'k' is rendered correctly on puff
BRANCH=zork

Change-Id: Ibc91ad1af85adcf093eff40797cd54f32f57111d
Signed-off-by: Yu-Ping Wu <yupingso@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45235
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
2020-09-18 01:35:35 +00:00
Jacob Garber 07201d7a0f coreinfo: Use SPDX license identifiers
- Remove copyright notices and add authors to AUTHORS
- Use SPDX license identifiers for all files
- Add coreinfo to the license header lint

Signed-off-by: Jacob Garber <jgarber1@ualberta.ca>
Change-Id: Ib0c5328a4027849b1eda4f57141a898335230726
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45178
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2020-09-14 07:05:27 +00:00
Yu-Ping Wu aec3b1f7d7 libpayload: malloc: Fix realloc for overlapping buffers
The current realloc() works by freeing the origin buffer, allocating a
new one, and copying the data over. It's true that free() won't touch
the actual memory. However, the alloc() following it will potentially
modify the memory that belongs to the old buffer in order to create a
new free block (right after the newly allocated block). This causes 8
bytes (HDRSIZE) to be overwritten before being copied to the new buffer.

To fix the problem, we must create the header of the new free block
after the data is copied. In this patch, the content of alloc() is split
into two functions:

1. find_free_block(): Find a free block with large enough size, without
   touching the memory
2. use_block(): Update the header of the newly allocated block, and
   create the header of the new free block right after it

Then, inside realloc(), call memmove() call right after
find_free_block() while before use_block().

BUG=b:165439970
TEST=emerge-puff libpayload
TEST=Puff boots
TEST=Verified realloc() correctly copied data when buffers overlapped

Change-Id: I9418320a26820909144890300ddfb09ec2570f43
Signed-off-by: Yu-Ping Wu <yupingso@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45284
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
2020-09-13 13:40:11 +00:00
Caveh Jalali b2280149c0 libpayload/xhci: Fix Slot State field width definition
According to the xHCI spec, the Slot State field in the Slot Context
Data Structure is 5 bits wide. So, fix the code to match.

ref. xHCI spec 1.2
section 6.2.2, Figure 6-2: Slot Context Data Structure

BUG=none
TEST=xHCI compiles

Change-Id: I0ae735af3d0840aeee846fa939c37af9aea3dff1
Signed-off-by: Caveh Jalali <caveh@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45023
Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-09-04 19:13:31 +00:00
Caveh Jalali d7468bfb27 xhci: Do not set the CRCR_CS bit
We do not need to set the CS (Command Stop) bit in the Command Ring
Control Register. CS is implied by CA (Command Abort). I'm not sure if
there is a defined execution order for these command bits, so it's
safer to only use the CA bit as it includes the CS function.

Ref: xHCI spec 1.2 (May 2019), Section 5.4.5, Table 5-24.

BUG=b:160354585,b:157123390
TEST=able to boot into recovery using USB stick on servo v2 on volteer
	as well as HooToo 8-1 hub

Change-Id: Iaeba98b6da8da49f529358ca6d68270440ea0f42
Signed-off-by: Caveh Jalali <caveh@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44876
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
2020-08-31 06:38:53 +00:00
Caveh Jalali 551216a4d1 xhci: Fix Abort command event handling
This fixes issues with how we handle events generated by the xHCI
"command abort" command. first, depending on the state of the xHCI
controller, the COMMAND_ABORTED may not be generated. If the
controller was between commands, only the COMMAND_RING_STOPPED event
will be generated. Second, do not adjust the command ring "cur"
pointer as that just confuses the controller.

BUG=b:160354585,b:157123390
TEST=able to boot into recovery using USB stick on servo v2 on volteer
	as well as HooToo 8-1 hub

Change-Id: I055df680d1797f35d9730e2bfdb4119925657168
Signed-off-by: Caveh Jalali <caveh@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44875
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
2020-08-31 06:38:47 +00:00
Hung-Te Lin d04b388381 libpayload: cbgfx: Support buffered I/O
For payloads with UI based on CBGFX, they usually start by calling
clear_canvas or clear_screen and then draw the UI elements. However,
that makes the screen flicker.

A typical solution is to identify and minimize the area to redraw.
However for payloads with complicated UI and do not care about latency,
an alternative is to enable buffered I/O.

The new enable_graphics_buffer() will redirect all graphics I/O
into an invisible working buffer. To flush (redraw) the buffer to the
real screen, call flush_graphics_buffer(). To stop buffering, call
disable_graphics_buffer().

BUG=None
TEST=Add the enable, flush and disable calls to payload 'depthcharge',
     built a firmware and boots into Chrome OS recover UI. No more
     flickering. The average rendering time on x86 platform is 1.2ms.

Change-Id: Id60a2824fd9e164feae16b92b68b003beabea8d3
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44654
Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-08-28 21:40:58 +00:00
Julius Werner ae096be00c libpayload: memmove: Don't make expectations of architecture memcpy
default_memmove() calls memcpy() when (src > dst). This is safe for the
default_memcpy() implementation, but just calling memcpy() may invoke an
architecture-specific implementation. Architectures are free to
implement memcpy() however they want and may assume that buffers don't
overlap in either direction. So while this happens to work for all
current architecture implementations of memcpy(), it's safer not to rely
on that and only rely on the known implementation of default_memcpy()
for the forwards-overlapping case.

Signed-off-by: Julius Werner <jwerner@chromium.org>
Change-Id: I7ece4ce9e6622a36612bfade3deb62f351877789
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44691
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-08-24 09:24:06 +00:00