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Change subject: commonlib/bsd/lz4_wrapper.c: Fix misaligned access
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Patch Set 6: Code-Review+1
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Change subject: commonlib/bsd/lz4_wrapper.c: Fix misaligned access
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Patch Set 6:
(2 comments)
Commit Message:
https://review.coreboot.org/c/coreboot/+/81910/comment/f8dd42b3_3b307e70?us… :
PS1, Line 18: The coreboot LZ4 decompression code does some misaligned access during
: decompression
> Hmmm... fine. […]
Done
File src/commonlib/bsd/lz4_wrapper.c:
https://review.coreboot.org/c/coreboot/+/81910/comment/11278048_7535c71a?us… :
PS5, Line 10: /* LZ4 comes with its own supposedly portable memory access functions, but they
: * seem to be very inefficient in practice (at least on ARM64). Since coreboot
: * knows about endianness and allows some basic assumptions (such as unaligned
: * access support), we can easily write the ones we need ourselves. */
> This comment seems to be inaccurate now.
They now reflect the discussions in the comments.
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Hello Angel Pons, Arthur Heymans, Nico Huber, Philipp Hug, Ron Minnich, build bot (Jenkins),
I'd like you to reexamine a change. Please visit
https://review.coreboot.org/c/coreboot/+/81910?usp=email
to look at the new patch set (#6).
The following approvals got outdated and were removed:
Code-Review+1 by Angel Pons, Code-Review+1 by Arthur Heymans, Code-Review+2 by Nico Huber, Verified+1 by build bot (Jenkins)
Change subject: commonlib/bsd/lz4_wrapper.c: Fix misaligned access
......................................................................
commonlib/bsd/lz4_wrapper.c: Fix misaligned access
Currently the HiFive Unleashed produces the following exception:
[DEBUG] Exception: Load address misaligned
[DEBUG] Hart ID: 0
[DEBUG] Previous mode: machine
[DEBUG] Bad instruction pc: 0x080010d0
[DEBUG] Bad address: 0x08026ab3
[DEBUG] Stored ra: 0x080010c8
[DEBUG] Stored sp: 0x08010cc8
The coreboot LZ4 decompression code does some misaligned access during
decompression which the FU540 apparently does not support in SRAM.
Make the compiler generate code that adheres to natural alignment by
fixing the LZ4_readLE16() function and creating LZ4_readLE32().
Signed-off-by: Maximilian Brune <maximilian.brune(a)9elements.com>
Change-Id: Id165829bfd35be2bce2bbb019c208a304f627add
---
M src/commonlib/bsd/lz4_wrapper.c
1 file changed, 21 insertions(+), 7 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/10/81910/6
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Change subject: tgl mainboards: Move PCIe root port settings into their device scope
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Patch Set 3:
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