KVM: arm64: Move __hyp_set_vectors out of .hyp.text

Browse source

The .hyp.text section is supposed to be reserved for the nVHE EL2 code.
However, there is currently one occurrence of EL1 executing code located
in .hyp.text when calling __hyp_{re}set_vectors(), which happen to sit
next to the EL2 stub vectors. While not a problem yet, such patterns
will cause issues when removing the host kernel from the TCB, so a
cleaner split would be preferable.

Fix this by delimiting the end of the .hyp.text section in hyp-stub.S.

Acked-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Quentin Perret <qperret@google.com>
Link: https://lore.kernel.org/r/20210128173850.2478161-1-qperret@google.com
Signed-off-by: Will Deacon <will@kernel.org>

...

This commit is contained in:

Quentin Perret 2021-01-28 17:38:50 +00:00 • committed by Will Deacon

parent c7b9095e87

commit e30be1455b

1 changed files with 2 additions and 0 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

2

arch/arm64/kernel/hyp-stub.S

View file