| Age | Commit message (Collapse) | Author | Files | Lines |
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Pass this in so the caller can change it independently of the member
variable.
Signed-off-by: Simon Glass <sjg@chromium.org>
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Pass this in so the caller can change it independently of the member
variable.
Signed-off-by: Simon Glass <sjg@chromium.org>
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Pass this in so the caller can change it independently of the member
variable.
Signed-off-by: Simon Glass <sjg@chromium.org>
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Add assumed sizes so that Binman can check that the U-Boot binaries do
not grow too large.
Signed-off-by: Simon Glass <sjg@chromium.org>
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This cannot ever go at offset 0 since the descriptor is there. Use a
better offset for the ME, as used by link and coral, for example.
This matters when we start using assumed sizes for missing blobs.
Signed-off-by: Simon Glass <sjg@chromium.org>
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Binman has a the useful feature of handling missing external blobs
gracefully, including allowing them to be missing, deciding whether the
resulting image is functional or not and faking blobs when this is
necessary for particular tools (e.g. mkimage).
This feature is widely used in CI. One drawback is that if U-Boot grows
too large to fit along with the required blobs, then this is not
discovered until someone does a 'real' build which includes the blobs.
Add a 'assume-size' property to entries to allow Binman to reserve a
given size for missing external blobs.
Signed-off-by: Simon Glass <sjg@chromium.org>
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Reduce the length of the underline for this header, to match the
heading itself.
Signed-off-by: Simon Glass <sjg@chromium.org>
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Correct formatting errors in the documentation.
Regenerate the entries.rst file to include this recent addition.
Signed-off-by: Simon Glass <sjg@chromium.org>
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Regenerate the entries.rst file to include this recent addition.
Note that more docs are needed here, to actually describe the entry
type.
Note also that the entry type needs Binman tests added.
Signed-off-by: Simon Glass <sjg@chromium.org>
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Somehow the class documentation has got out of sync with the generated
entries.rst file. Regenerating it causes errors, so correct these and
regenerate the entries.rst file.
Signed-off-by: Simon Glass <sjg@chromium.org>
Fixes: 809f28e7213 ("binman: capsule: Use dumped capsule header...")
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We currently don't have any boards enabling CONFIG_EFI_RT_VOLATILE_STORE.
We do have EFI selftests testing the feature though, so enable it in
all the sandbox platforms and test the functionality properly
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
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commit 6e2228fb052b ("Merge patch series "Clean up arm linker scripts"")
was cleaning up linker scripts for armv7 and v8 in a similar fashion.
Several commits in the past -- e.g
commit d0b5d9da5de2 ("arm: make _end compiler-generated")
was moving symbols to be compiler generated. They were defined as c
variables in its own section to force the compiler emit relative a
reference. However, defining those in the linker script will do the
same thing since [0].
So let's remove the special sections from the linker scripts, the
variable definitions from sections.c, and define them as a symbols.
It's worth noting that the linker was discarding the symbols in the
older binary completely since the symbol definition had an extra _.
- new binary
$~ aarch64-linux-gnu-readelf -sW u-boot | grep efi_runtim
246: 000000000004acbe 13 FUNC LOCAL DEFAULT 14 vbe_req_efi_runtime_rand
3198: 0000000000318690 16 OBJECT LOCAL DEFAULT 29 efi_runtime_mmio
6359: 00000000000dedff 217 FUNC LOCAL DEFAULT 14 efi_runtime_relocate
7942: 00000000003074c0 136 OBJECT GLOBAL HIDDEN 29 efi_runtime_services
8869: 0000000000305e20 0 NOTYPE GLOBAL DEFAULT 27 __efi_runtime_rel_stop
9159: 0000000000305e20 0 NOTYPE GLOBAL DEFAULT 27 __efi_runtime_stop
9410: 0000000000305e20 0 NOTYPE GLOBAL DEFAULT 27 __efi_runtime_start
10137: 00000000005981bd 0 NOTYPE WEAK HIDDEN 33 efi_runtime.c.de5bed54
10470: 0000000000305e20 0 NOTYPE GLOBAL DEFAULT 27 __efi_runtime_rel_start
- old binary
$~ aarch64-linux-gnu-readelf -sW u-boot.old | grep efi_runtim
246: 000000000004acbe 13 FUNC LOCAL DEFAULT 14 vbe_req_efi_runtime_rand
3198: 0000000000318690 16 OBJECT LOCAL DEFAULT 29 efi_runtime_mmio
6359: 00000000000dedff 221 FUNC LOCAL DEFAULT 14 efi_runtime_relocate
7942: 00000000003074c0 136 OBJECT GLOBAL HIDDEN 29 efi_runtime_services
10135: 0000000000598320 0 NOTYPE WEAK HIDDEN 33 efi_runtime.c.de5bed54
$~ bloat-o-meter u-bool.old u-boot
add/remove: 0/0 grow/shrink: 1/1 up/down: 7/-4 (3)
Function old new delta
efi_memory_init 343 350 +7
efi_runtime_relocate 221 217 -4
Total: Before=2009902, After=2009905, chg +0.00%
[0] binutils commit 6b3b0ab89663 ("Make linker assigned symbol dynamic only for shared object")
Tested-by: Heinrich Schuchardt <xypron.glpk@gmx.de> # sandbox_defconfig on amd64, arm64, riscv64
Reviewed-by: Simon Glass <sjg@chromium.org>
Fixes: commit aac53d3d96a2 ("sandbox: Rename EFI runtime sections")
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
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It should read "in SPL" and not "wuth SPL".
Signed-off-by: Quentin Schulz <quentin.schulz@cherry.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
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Prior to that, seeing the debug() messages required to enable DM_DEBUG
which defines DEBUG (and then _DEBUG) which in turn makes failing
assert() calls reset U-Boot which isn't necessarily what is desired.
Instead, let's migrate to dm_warn which is using log_debug when unset or
log_warn when set.
While at it, reword the DM_DEBUG symbol in Kconfig to explain what it
now actually does.
Signed-off-by: Quentin Schulz <quentin.schulz@cherry.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
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outp always point to an unsigned type in ofnode_read_u* functions but
the format specifier is currently always using signed type.
This is an issue since the signed type can only contain half of the
unsigned type values above 0.
However, this now breaks another usecase. Indeed,
ofnode_read_s32_default is actually passing an s32 but it'll be printed
as a u32 instead. But since the function is called u32, it makes more
sense to have it print an unsigned value.
This was discovered because arm,smc-id = <0x82000010>; on RK3588S is
above the max signed value and therefore would return a negative signed
decimal value instead of its proper unsigned one.
Fixes: fa12dfa08a7b ("dm: core: support reading a single indexed u64 value")
Fixes: 4bb7075c830c ("dm: core: support reading a single indexed u32 value")
Fixes: 7e5196c409f1 ("dm: core: Add ofnode function to read a 64-bit int")
Fixes: 9e51204527dc ("dm: core: Add operations on device tree references")
Signed-off-by: Quentin Schulz <quentin.schulz@cherry.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
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A driver can have multiple compatible. When the id->compatible matches
for that driver, the first compatible supported by the driver is
currently returned, which gives the following confusing message:
- found match at 'rk3588_syscon': 'rockchip,rk3588-sys-grf' matches 'rockchip,rk3588-pmugrf'
Considering that the compatible passed in argument is necessarily the
one that exactly matched to enter this code path, there's no need to do
some elaborate logic, just print the driver name and the compatible
passed in argument.
Fixes: d3e773613b6d ("dm: core: Use U-Boot logging instead of pr_debug()")
Signed-off-by: Quentin Schulz <quentin.schulz@cherry.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
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The method `ConfigParser.readfp()` is marked deprecated[1].
In Python 3.12 this method have been removed, so replace it with
`ConfigParser.read_file()`.
[1] https://docs.python.org/3.11/library/configparser.html#configparser.ConfigParser.readfp
Signed-off-by: Brandon Maier <brandon.maier@collins.com>
CC: Simon Glass <sjg@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
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The method `ConfigParser.readfp()` is marked deprecated[1].
In Python 3.12 this method have been removed, so replace it with
`ConfigParser.read_file()`.
[1] https://docs.python.org/3.11/library/configparser.html#configparser.ConfigParser.readfp
Signed-off-by: Brandon Maier <brandon.maier@collins.com>
CC: Simon Glass <sjg@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
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The methods `unittest.assertEquals()` and
`unittest.assertRegexpMatches()` are marked deprecated[1].
In Python 3.12 these aliases have been removed, so do a sed to replace
them with their new names.
[1] https://docs.python.org/3.11/library/unittest.html#deprecated-aliases
Signed-off-by: Brandon Maier <brandon.maier@collins.com>
CC: Simon Glass <sjg@chromium.org>
CC: Alper Nebi Yasak <alpernebiyasak@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
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The dm_root_f field seems to be entirely write-only and hence
redundant, unless 'git grep' fails to find some access generated via
preprocessor token concatenation or similar.
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Reviewed-by: Simon Glass <sjg@chromium.org>
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This does not work with sandbox at present. Fix it up to use map_sysmem()
to convert an address to a pointer.
Signed-off-by: Jonathan Liu <net147@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Fix conflict and reformat to 80cols:
Signed-off-by: Simon Glass <sjg@chromium.org>
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When a patch is added to a series after the initial version, there are no
changes to note except that it is new. This is typically done to suppress
the "(no changes in vN)" message. It's also nice to add a change to the
cover letter so reviewers know there is an additional patch. Add a tag to
automate this process a bit.
There are two nits with the current approach:
- It favors '-' as a bullet point, but some people may prefer '*' (or
something else)
- Tags (e.g. 'patman: ' in 'patman: foo bar') are not stripped. They are
probably just noise in most series, but they may be useful for treewide
series to distinguish 'gpio: frobnicate' from 'reset: frobnicate', so
I've left them in.
Suggestions for the above appreciated.
Suggested-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
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Most tags referring to commits (or patches) are named Commit-something. The
exception is Patch-cc. Add a Commit-cc alias so we can use whichever one is
convenient.
Signed-off-by: Sean Anderson <seanga2@gmail.com>
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If add_maintainers is set to False in the user's ~/.patman config, it will
cause the custom_get_maintainer_script to fail since that test expects
maintainers to be added. Set add_maintainer to True in the .patman config
to prevent this.
Fixes: 8c042fb7f9f ("patman: add '--get-maintainer-script' argument")
Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
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We should have a single place where we write the default value to the
creator revision field. If we ever will have any table created by another
tool, we can overwrite the value afterwards.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
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When writing an executable, allowing other users to modify it introduces
a security issue.
Generally we should avoid giving other users write access to our files by
default.
Replace chmod(777) by chmod(755) and chmod(644).
Fixes: 47f5fcfb4169 ("sandbox: Add os_jump_to_image() to run another executable")
Fixes: d9165153caea ("sandbox: add flags for open() call")
Fixes: 5c2859cdc302 ("sandbox: Allow reading/writing of RAM buffer")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Sean Anderson <seanga2@gmail.com>
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Signed-off-by: Tom Rini <trini@konsulko.com>
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Rsync all defconfig files using moveconfig.py
Signed-off-by: Tom Rini <trini@konsulko.com>
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https://source.denx.de/u-boot/custodians/u-boot-amlogic into next
- Switch meson dwc3/usb PHY to set_mode callback for switching USB mode
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This series brings our zlib code more up to date. However, it drops an
important performance improvement that is required on some of our
supported platforms in order to boot Linux before the watchdog resets
the system. Furthermore, the "post increment" version of this
performance loop was not tested, so while we can fix it, it would then
require re-testing all platforms. At this point in time, we will revert
updating zlib (which has had a potential security issue since 2016) and
fix this in the v2024.10 release.
This reverts commit 4914263c9a14315390d3ccc4816cf3a94cfd156d, reversing
changes made to ef8ef5f77c9a998f76a48277a883af1645b54117.
Reported-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Tom Rini <trini@konsulko.com>
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https://source.denx.de/u-boot/custodians/u-boot-efi into next
Pull request efi-2024-10-rc1
Documentation:
Update requirements.txt to use current Python module versions
Add a page describing debugging U-Boot with GDB
FIT: describe data-size as a conditionally mandatory property
Correct link to FIT specification in SPL code.
Correct kaslrseed command long text description
UEFI:
Add unit test checking that don't have kaslr-seed when measuring boot
Deduplicate code for measured boot.
Other:
Print size information in fwu command
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Mashed up from different sources linked below, including the now gone
Wiki and doc/README.arm-relocation file. Tested on a custom board with
AT91 SAMA5D2 SoC and Segger J-Link Base adapter. This is only generic
advice here, the usage is not board specific. Some board docs have more
specific instructions on using gdb with a particular board.
Link: https://www.slideshare.net/slideshow/embedded-recipes-2019-introduction-to-jtag-debugging/177511981
Link: https://boundarydevices.com/debugging-using-segger-j-link-jtag/
Link: https://web.archive.org/web/20141224200032/http://www.denx.de/wiki/view/DULG/DebuggingUBoot
Link: https://web.archive.org/web/20141206064148/http://www.denx.de/wiki/view/DULG/GDBScripts1
Suggested-by: Marek Vasut <marex@denx.de>
Signed-off-by: Alexander Dahl <ada@thorsis.com>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
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Before 9d0750064e (doc: Move external FIT docs into the main body), the
FIT property data-size was not a mandatory property and still it is not
expected to be set alongside the data property.
Move the data-size property to the "Conditionally mandatory property"
section, where it actually belongs.
Signed-off-by: Bastian Germann <bage@debian.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
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Simon reports that after enabling all algorithms on the TPM some boards
fail since they don't have enough storage to accommodate the ~5KB growth.
The choice of hash algorithms is determined by the platform and the TPM
configuration. Failing to cap a PCR in a bank which the platform left
active is a security vulnerability. It might allow unsealing of secrets
if an attacker can replay a good set of measurements into an unused bank.
If MEASURED_BOOT or EFI_TCG2_PROTOCOL is enabled our Kconfig will enable
all supported hashing algorithms. We still want to allow users to add a
TPM and not enable measured boot via EFI or bootm though and at the same
time, control the compiled algorithms for size reasons.
So let's add a function tpm2_allow_extend() which checks the TPM active
PCRs banks against the one U-Boot was compiled with. We only allow
extending PCRs if the algorithms selected during build match the TPM
configuration.
It's worth noting that this is only added for TPM2.0, since TPM1.2 is
lacking a lot of code at the moment to read the available PCR banks.
We unconditionally enable SHA1 when a TPM is selected, which is the only
hashing algorithm v1.2 supports.
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org> # chromebook-link
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This function was used on measured boot to retrieve the number of active
PCR banks and was designed to work with the TCG protocols.
Since we now have the need to retrieve the active PCRs outside the
measured boot context -- e.g use the in the command line, decouple the
function.
Create one that will only adheres to TCG TSS2.0 [0] specification called
tpm2_get_pcr_info() which can be used by the TPM2.0 APIs and a new one that
is called from the measured boot context called tcg2_get_pcr_info()
[0] https://trustedcomputinggroup.org/wp-content/uploads/TSS_Overview_Common_Structures_Version-0.9_Revision-03_Review_030918.pdf
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
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efi_tcg2.h already includes tpm-v2.h. Remove it
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
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The previous patch is moving the TPM TCG headers in their own file for
a cleaner API. Move the functions in their own file as well.
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
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commit 97707f12fdab ("tpm: Support boot measurements") moved out code
from the EFI subsystem into the TPM one to support measurements when
booting with !EFI.
Those were moved directly into the TPM subsystem and in the tpm-v2.c
library. In hindsight, it would have been better to move it in new
files since the TCG2 is governed by its own spec, it's overeall cleaner
and also easier to enable certain parts of the TPM functionality.
So let's start moving the headers in a new file containing the TCG
specific bits.
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
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commit 97707f12fdab ("tpm: Support boot measurements") moved some of the
EFI TCG code to the TPM subsystem. Those definitions are now in tpm-v2.h.
Let's remove the stale entries
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
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The number of random bytes generated is hard coded as 8.
The command takes no argument.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
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Test that we don't have a /chosen/kaslr-seed property if we measure the
device-tree.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
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Replace the invalid link to the FIT file format specification.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
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Update all required Python packages to current release.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
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It is useful when structure is also used for saving vendor data covered
by CRC32.
Signed-off-by: Michal Simek <michal.simek@amd.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
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Tim Harvey <tharvey@gateworks.com> says:
This series will automatically add /chosen/kaslr-seed to the dt if
DM_RNG is enabled
during the boot process.
If RANDOMIZE_BASE is enabled in the Linux kernel instructing it to
randomize the virtual address at which the kernel image is loaded, it
expects entropy to be provided by the bootloader by populating
/chosen/kaslr-seed with a 64-bit value from source of entropy at boot.
If we have DM_RNG enabled populate this value automatically when
fdt_chosen is called. We skip this if ARMV8_SEC_FIRMWARE_SUPPORT
is enabled as its implementation uses a different source of entropy
that is not yet implemented as DM_RNG. We also skip this if
MEASURED_BOOT is enabled as in that case any modifications to the
dt will cause measured boot to fail (although there are many other
places the dt is altered).
As this fdt node is added elsewhere create a library function and
use it to deduplicate code. We will provide a parameter to overwrite
the node if present.
For our automatic injection, we will use the first rng device and
not overwrite if already present with a non-zero value (which may
have been populated by an earlier boot stage). This way if a board
specific ft_board_setup() function wants to customize this behavior
it can call fdt_kaslrseed with a rng device index of its choosing and
set overwrite true.
Note that the kalsrseed command (CMD_KASLRSEED) is likely pointless now
but left in place in case boot scripts exist that rely on this command
existing and returning success. An informational message is printed to
alert users of this command that it is likely no longer needed.
Note that the Kernel's EFI STUB only relies on EFI_RNG_PROTOCOL for
randomization and completely ignores the kaslr-seed for its own
randomness needs (i.e the randomization of the physical placement of
the kernel). It gets weeded out from the DTB that gets handed over via
efi_install_fdt() as it would also mess up the measured boot DTB TPM
measurements as well.
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Now that kaslr-seed is automatically added to the chosen node if DM_RNG
is enabled, adjust the test to expect this.
Take care not to expect kaslr-seed for CONFIG_MEASURED_BOOT and
CONFIG_ARMV8_SEC_FIRMWARE_SUPPORT as we do not add it for those.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Cc: Michal Simek <michal.simek@amd.com>
Cc: Andy Yan <andy.yan@rock-chips.com>
Cc: Akash Gajjar <gajjar04akash@gmail.com>
Cc: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Cc: Simon Glass <sjg@chromium.org>
Cc: Patrick Delaunay <patrick.delaunay@foss.st.com>
Cc: Patrice Chotard <patrice.chotard@foss.st.com>
Cc: Devarsh Thakkar <devarsht@ti.com>
Cc: Heinrich Schuchardt <xypron.glpk@gmx.de>
Cc: Hugo Villeneuve <hvilleneuve@dimonoff.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Tom Rini <trini@konsulko.com>
Cc: Chris Morgan <macromorgan@hotmail.com>
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Use the fdt_kaslrseed function to deduplicate code doing the same thing.
Note that the kalsrseed command (CMD_KASLRSEED) is likely pointless now
but left in place in case boot scripts exist that rely on this command
existing and returning success. An informational message is printed to
alert users of this command that it is likely no longer needed.
Note that the Kernel's EFI STUB only relies on EFI_RNG_PROTOCOL for
randomization and completely ignores the kaslr-seed for its own
randomness needs (i.e the randomization of the physical placement of
the kernel). It gets weeded out from the DTB that gets handed over via
efi_install_fdt() as it would also mess up the measured boot DTB TPM
measurements as well.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Cc: Michal Simek <michal.simek@amd.com>
Cc: Andy Yan <andy.yan@rock-chips.com>
Cc: Akash Gajjar <gajjar04akash@gmail.com>
Cc: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Cc: Simon Glass <sjg@chromium.org>
Cc: Patrick Delaunay <patrick.delaunay@foss.st.com>
Cc: Patrice Chotard <patrice.chotard@foss.st.com>
Cc: Devarsh Thakkar <devarsht@ti.com>
Cc: Heinrich Schuchardt <xypron.glpk@gmx.de>
Cc: Hugo Villeneuve <hvilleneuve@dimonoff.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Tom Rini <trini@konsulko.com>
Cc: Chris Morgan <macromorgan@hotmail.com>
Acked-by: Michal Simek <michal.simek@amd.com>
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If RANDOMIZE_BASE is enabled in the Linux kernel instructing it to
randomize the virtual address at which the kernel image is loaded, it
expects entropy to be provided by the bootloader by populating
/chosen/kaslr-seed with a 64-bit value from source of entropy at boot.
If we have DM_RNG enabled populate this value automatically when
fdt_chosen is called. We skip this if ARMV8_SEC_FIRMWARE_SUPPORT
is enabled as its implementation uses a different source of entropy
that is not yet implemented as DM_RNG. We also skip this if
MEASURED_BOOT is enabled as in that case any modifications to the
dt will cause measured boot to fail (although there are many other
places the dt is altered).
Note that the Kernel's EFI STUB only relies on EFI_RNG_PROTOCOL for
randomization and completely ignores the kaslr-seed for its own
randomness needs (i.e the randomization of the physical placement of
the kernel). It gets weeded out from the DTB that gets handed over via
efi_install_fdt() as it would also mess up the measured boot DTB TPM
measurements as well.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Cc: Michal Simek <michal.simek@amd.com>
Cc: Andy Yan <andy.yan@rock-chips.com>
Cc: Akash Gajjar <gajjar04akash@gmail.com>
Cc: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Cc: Simon Glass <sjg@chromium.org>
Cc: Patrick Delaunay <patrick.delaunay@foss.st.com>
Cc: Patrice Chotard <patrice.chotard@foss.st.com>
Cc: Devarsh Thakkar <devarsht@ti.com>
Cc: Heinrich Schuchardt <xypron.glpk@gmx.de>
Cc: Hugo Villeneuve <hvilleneuve@dimonoff.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Tom Rini <trini@konsulko.com>
Cc: Chris Morgan <macromorgan@hotmail.com>
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If RANDOMIZE_BASE is enabled in the Linux kernel instructing it to
randomize the virtual address at which the kernel image is loaded, it
expects entropy to be provided by the bootloader by populating
/chosen/kaslr-seed with a 64-bit value from source of entropy at boot.
Add a fdt_kaslrseed function to accommodate this allowing an existing
node to be overwritten if present. For now use the first rng device
but it would be good to enhance this in the future to allow some sort
of selection or policy in choosing the rng device used.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Cc: Michal Simek <michal.simek@amd.com>
Cc: Andy Yan <andy.yan@rock-chips.com>
Cc: Akash Gajjar <gajjar04akash@gmail.com>
Cc: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Cc: Simon Glass <sjg@chromium.org>
Cc: Patrick Delaunay <patrick.delaunay@foss.st.com>
Cc: Patrice Chotard <patrice.chotard@foss.st.com>
Cc: Devarsh Thakkar <devarsht@ti.com>
Cc: Heinrich Schuchardt <xypron.glpk@gmx.de>
Cc: Hugo Villeneuve <hvilleneuve@dimonoff.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Tom Rini <trini@konsulko.com>
Cc: Chris Morgan <macromorgan@hotmail.com>
Reviewed-by: Caleb Connolly <caleb.connolly@linaro.org>
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