diff options
Diffstat (limited to 'arch/arm64/kvm/hyp-init.S')
| -rw-r--r-- | arch/arm64/kvm/hyp-init.S | 107 |
1 files changed, 0 insertions, 107 deletions
diff --git a/arch/arm64/kvm/hyp-init.S b/arch/arm64/kvm/hyp-init.S deleted file mode 100644 index ba84e6705e20..000000000000 --- a/arch/arm64/kvm/hyp-init.S +++ /dev/null @@ -1,107 +0,0 @@ -/* - * Copyright (C) 2012,2013 - 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/linkage.h> - -#include <asm/assembler.h> -#include <asm/kvm_arm.h> -#include <asm/kvm_mmu.h> - - .text - .pushsection .hyp.idmap.text, "ax" - - .align 11 - -ENTRY(__kvm_hyp_init) - ventry __invalid // Synchronous EL2t - ventry __invalid // IRQ EL2t - ventry __invalid // FIQ EL2t - ventry __invalid // Error EL2t - - ventry __invalid // Synchronous EL2h - ventry __invalid // IRQ EL2h - ventry __invalid // FIQ EL2h - ventry __invalid // Error EL2h - - ventry __do_hyp_init // Synchronous 64-bit EL1 - ventry __invalid // IRQ 64-bit EL1 - ventry __invalid // FIQ 64-bit EL1 - ventry __invalid // Error 64-bit EL1 - - ventry __invalid // Synchronous 32-bit EL1 - ventry __invalid // IRQ 32-bit EL1 - ventry __invalid // FIQ 32-bit EL1 - ventry __invalid // Error 32-bit EL1 - -__invalid: - b . - - /* - * x0: HYP boot pgd - * x1: HYP pgd - * x2: HYP stack - * x3: HYP vectors - */ -__do_hyp_init: - - msr ttbr0_el2, x0 - - mrs x4, tcr_el1 - ldr x5, =TCR_EL2_MASK - and x4, x4, x5 - ldr x5, =TCR_EL2_FLAGS - orr x4, x4, x5 - msr tcr_el2, x4 - - ldr x4, =VTCR_EL2_FLAGS - msr vtcr_el2, x4 - - mrs x4, mair_el1 - msr mair_el2, x4 - isb - - mov x4, #SCTLR_EL2_FLAGS - msr sctlr_el2, x4 - isb - - /* MMU is now enabled. Get ready for the trampoline dance */ - ldr x4, =TRAMPOLINE_VA - adr x5, target - bfi x4, x5, #0, #PAGE_SHIFT - br x4 - -target: /* We're now in the trampoline code, switch page tables */ - msr ttbr0_el2, x1 - isb - - /* Invalidate the old TLBs */ - tlbi alle2 - dsb sy - - /* Set the stack and new vectors */ - kern_hyp_va x2 - mov sp, x2 - kern_hyp_va x3 - msr vbar_el2, x3 - - /* Hello, World! */ - eret -ENDPROC(__kvm_hyp_init) - - .ltorg - - .popsection |