| /* |
| * Copyright 2018 The Hafnium Authors. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * https://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include "offsets.h" |
| |
| .section .text.cpu_entry, "ax" |
| .global cpu_entry |
| cpu_entry: |
| /* Disable interrupts. */ |
| msr DAIFSet, #0xf |
| |
| /* Use SPx (instead of SP0). */ |
| msr spsel, #1 |
| |
| /* Prepare the stack. */ |
| ldr x30, [x0, #CPU_STACK_BOTTOM] |
| mov sp, x30 |
| |
| /* Configure exception handlers. */ |
| adrp x30, vector_table_el2 |
| add x30, x30, :lo12:vector_table_el2 |
| msr vbar_el2, x30 |
| |
| /* Call into C code, x0 holds the cpu pointer. */ |
| bl cpu_main |
| |
| /* Run the vcpu returned by cpu_main. */ |
| bl vcpu_restore_all_and_run |
| |
| /* Loop forever waiting for interrupts. */ |
| 0: wfi |
| b 0b |
