While initializing EL2, enable Address Authentication if detected from EL1. We still use the EL1-provided keys though.
Acked-by: Andrew Scull <[email protected]> Acked-by: Mark Rutland <[email protected]> Signed-off-by: Marc Zyngier <[email protected]> --- arch/arm64/kvm/hyp-init.S | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/arm64/kvm/hyp-init.S b/arch/arm64/kvm/hyp-init.S index 6e6ed5581eed..1587d146726a 100644 --- a/arch/arm64/kvm/hyp-init.S +++ b/arch/arm64/kvm/hyp-init.S @@ -104,6 +104,11 @@ alternative_else_nop_endif */ mov_q x4, (SCTLR_EL2_RES1 | (SCTLR_ELx_FLAGS & ~SCTLR_ELx_A)) CPU_BE( orr x4, x4, #SCTLR_ELx_EE) +alternative_if ARM64_HAS_ADDRESS_AUTH + mov_q x5, (SCTLR_ELx_ENIA | SCTLR_ELx_ENIB | \ + SCTLR_ELx_ENDA | SCTLR_ELx_ENDB) + orr x4, x4, x5 +alternative_else_nop_endif msr sctlr_el2, x4 isb -- 2.27.0 _______________________________________________ kvmarm mailing list [email protected] https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
