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. Signed-off-by: Quentin Perret <[email protected]> --- arch/arm64/kernel/hyp-stub.S | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/kernel/hyp-stub.S b/arch/arm64/kernel/hyp-stub.S index 160f5881a0b7..8a60f9c586bb 100644 --- a/arch/arm64/kernel/hyp-stub.S +++ b/arch/arm64/kernel/hyp-stub.S @@ -85,6 +85,8 @@ SYM_CODE_END(\label) invalid_vector el1_fiq_invalid invalid_vector el1_error_invalid + .popsection + /* * __hyp_set_vectors: Call this after boot to set the initial hypervisor * vectors as part of hypervisor installation. On an SMP system, this should -- 2.30.0.280.ga3ce27912f-goog _______________________________________________ kvmarm mailing list [email protected] https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
