diff options
Diffstat (limited to 'bl31')
| -rw-r--r-- | bl31/context_mgmt.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/bl31/context_mgmt.c b/bl31/context_mgmt.c index 6d405343..2b619aaa 100644 --- a/bl31/context_mgmt.c +++ b/bl31/context_mgmt.c @@ -330,6 +330,14 @@ void cm_prepare_el3_exit(uint32_t security_state) /* Set VPIDR, VMPIDR to match MIDR, MPIDR */ write_vpidr_el2(read_midr_el1()); write_vmpidr_el2(read_mpidr_el1()); + + /* + * Reset VTTBR_EL2. + * Needed because cache maintenance operations depend on + * the VMID even when non-secure EL1&0 stage 2 address + * translation are disabled. + */ + write_vttbr_el2(0); } } |