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

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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
parent b88fe2b5dd 1105ab42a8
commit 05dbaf8dd8
1 changed files with 4 additions and 0 deletions
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arch/x86/coco/sev/Makefile
+4
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@@ -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