diff options
Diffstat (limited to 'arch/arm/kvm/hyp/s2-setup.c')
| -rw-r--r-- | arch/arm/kvm/hyp/s2-setup.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/arch/arm/kvm/hyp/s2-setup.c b/arch/arm/kvm/hyp/s2-setup.c new file mode 100644 index 000000000..7be39af2e --- /dev/null +++ b/arch/arm/kvm/hyp/s2-setup.c @@ -0,0 +1,33 @@ +/* + * Copyright (C) 2016 - ARM Ltd + * Author: Marc Zyngier <marc.zyngier@arm.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <linux/types.h> +#include <asm/kvm_arm.h> +#include <asm/kvm_asm.h> +#include <asm/kvm_hyp.h> + +void __hyp_text __init_stage2_translation(void) +{ + u64 val; + + val = read_sysreg(VTCR) & ~VTCR_MASK; + + val |= read_sysreg(HTCR) & VTCR_HTCR_SH; + val |= KVM_VTCR_SL0 | KVM_VTCR_T0SZ | KVM_VTCR_S; + + write_sysreg(val, VTCR); +} |