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Differential D43155

arm64: Make KMSAN aware of exceptions
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Authored by markj on Dec 21 2023, 6:40 PM.
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andrew
manu
imp
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arm64
Commits
rGc05d7bdaf63d: arm64: Make KMSAN aware of exceptions
Summary
  • Call kmsan_intr_enter() when an exception occurs. This ensures that code running in the exception context does not clobber thread-local KMSAN state.
  • Ensure that stack memory containing trap frames is treated as initialized.

Co-authored-by: Alexander Stetsenko <alex.stetsenko@klarasystems.com>
Sponsored by: Klara, Inc.
Sponsored by: Juniper Networks, Inc.

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rG FreeBSD src repository
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sys/
arm64/
arm64/
34 lines
9 lines
kern/
2 lines

Diff 134008

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sys/arm64/arm64/exception.S

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sys/arm64/arm64/trap.c

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sys/kern/subr_intr.c

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