niansa-misc/linux
1
0
Fork 0
mirror of synced 2025-03-06 20:59:54 +01:00
Code Issues Projects Releases Packages Wiki Activity

Fix a build regression on certain config and build environment

Browse source 
combinations that generate absolute references to symbols.
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
 -----BEGIN PGP SIGNATURE-----
 
 iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAmeZVlkRHG1pbmdvQGtl
 cm5lbC5vcmcACgkQEnMQ0APhK1hCghAAsYfCm4Wi2SuqDpePJfzHbW0tLAbz2Bel
 sAX6R+l655kvDmjV33RSGKVlgUDPUwQf5DcNj9etVwXf3fhWKpI4C+qfl/m59SLF
 Fp1VnWvAUqA4PYwcDGB5JScyKg4Dvg6lfETAG3Bs1YgK9tQKY8HzE9bzlAmczgWW
 v4KU6PSVZgvqz/s83QK3LeiXvcV2cmYzug6cJFfWRnFjNM4Qzd5p4PODFKjqys65
 wBPOOvWLPVNjapvFyT91GIqdzZZF09KUJM9aHJ7nnK/wDE2HyHwRx6iMFYY9yzO8
 OFYDoxMPtyAq0W3Wr/665yjQY3J8EPwVtBooNQ26FblJIvni5yiPRtSt/9rh5S9e
 MdnsEcJx3RSsFVYOiOOU7noTedtRwma9D7KCyNcmJ9wPZVOfWPAZxaD4R2Ebb/eu
 77Z70xvJ8qgI0bhCrHdATqAAAKvOmTcjkPN56zzzCiBtjGWG0uBkI2zsYUmB1hNK
 M4gzA2oQuGYi9FUAuIVaeUAZBajltpZlvUm3yxTjgQ6Zrkuh8fzLFgr/ZMHUynjt
 RyfQoR8T4UWZRjV9kmoO1T2MGHULFndyM+MiAWRB3FzGD3Q/SEHK7h+WFmD+pt8y
 ddAKJvxLNJY+ppP187Hzy0nLPU53qiR6paV9SPopvR/mXpXnyDYGexg4r96CySkD
 HHdkXCbwrSs=
 =OXNX
 -----END PGP SIGNATURE-----

Merge tag 'x86-urgent-2025-01-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 fix from Ingo Molnar:
 "Fix a potential early boot crash in SEV-SNP guests, where certain
  config and build environment combinations can generate absolute
  references to symbols in the early boot code"

* tag 'x86-urgent-2025-01-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/sev: Disable jump tables in SEV startup code
This commit is contained in:
Linus Torvalds 2025-01-28 14:32:03 -08:00
commit 05dbaf8dd8
1 changed files with 4 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
arch/x86/coco/sev/Makefile
View file

@ -2,6 +2,10 @@
obj-y += core.o
# jump tables are emitted using absolute references in non-PIC code
# so they cannot be used in the early SEV startup code
CFLAGS_core.o += -fno-jump-tables
ifdef CONFIG_FUNCTION_TRACER
CFLAGS_REMOVE_core.o = -pg
endif