tegrakernel/kernel/kernel-4.9/arch/arm/kvm/hyp/s2-setup.c

34 lines
995 B
C

/*
* 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);
}