diff options
| author | Theo de Raadt <deraadt@cvs.openbsd.org> | 2020-03-11 13:24:17 +0000 |
|---|---|---|
| committer | Theo de Raadt <deraadt@cvs.openbsd.org> | 2020-03-11 13:24:17 +0000 |
| commit | d43cb295e2cf9556b8d128ceb44061b823ea5e54 (patch) | |
| tree | bf77acbbaa397d1d8844439cd74daf959bcee470 /sys/arch/arm | |
| parent | 02a170df4f9f31380e4ee904936c6e199e49cf57 (diff) | |
Anthony Steinhauser reports that 32-bit arm cpus have the same speculation
problems as 64-bit models. After every eret, there must be a speculation
barrier.
ok kettenis
Diffstat (limited to 'sys/arch/arm')
| -rw-r--r-- | sys/arch/arm/arm/locore.S | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/sys/arch/arm/arm/locore.S b/sys/arch/arm/arm/locore.S index 0bedacd31e7..8ff3297b6ab 100644 --- a/sys/arch/arm/arm/locore.S +++ b/sys/arch/arm/arm/locore.S @@ -1,4 +1,4 @@ -/* $OpenBSD: locore.S,v 1.19 2019/10/27 10:26:12 kettenis Exp $ */ +/* $OpenBSD: locore.S,v 1.20 2020/03/11 13:24:16 deraadt Exp $ */ /* $NetBSD: locore.S,v 1.14 2003/04/20 16:21:40 thorpej Exp $ */ /* @@ -121,6 +121,8 @@ drop_to_pl1: msr spsr_fsxc, r0 msr ELR_hyp, lr eret /* Use the HYP LR to get into SVC */ + dsb nsh + isb .globl start_mmu start_mmu: |