diff options
Diffstat (limited to 'arch/arm64/kvm/hyp-init.S')
| -rw-r--r-- | arch/arm64/kvm/hyp-init.S | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/arm64/kvm/hyp-init.S b/arch/arm64/kvm/hyp-init.S index 178ba2248a98..3e568dcd907b 100644 --- a/arch/arm64/kvm/hyp-init.S +++ b/arch/arm64/kvm/hyp-init.S @@ -94,6 +94,15 @@ __do_hyp_init: */ mrs x5, ID_AA64MMFR0_EL1 bfi x4, x5, #16, #3 + /* + * Read the VMIDBits bits from ID_AA64MMFR1_EL1 and set the VS bit in + * VTCR_EL2. + */ + mrs x5, ID_AA64MMFR1_EL1 + ubfx x5, x5, #5, #1 + lsl x5, x5, #VTCR_EL2_VS + orr x4, x4, x5 + msr vtcr_el2, x4 mrs x4, mair_el1 |