| /* SPDX-License-Identifier: GPL-2.0-only */ |
| /* |
| * Copyright (C) 2015-2018 - ARM Ltd |
| * Author: Marc Zyngier <marc.zyngier@arm.com> |
| */ |
| |
| #include <linux/arm-smccc.h> |
| #include <linux/linkage.h> |
| |
| #include <asm/kvm_asm.h> |
| #include <asm/kvm_mmu.h> |
| |
| /* |
| * This is not executed directly and is instead copied into the vectors |
| * by install_bp_hardening_cb(). |
| */ |
| .data |
| .pushsection .rodata |
| .global __smccc_workaround_1_smc |
| SYM_DATA_START(__smccc_workaround_1_smc) |
| esb |
| sub sp, sp, #(8 * 4) |
| stp x2, x3, [sp, #(8 * 0)] |
| stp x0, x1, [sp, #(8 * 2)] |
| mov w0, #ARM_SMCCC_ARCH_WORKAROUND_1 |
| smc #0 |
| ldp x2, x3, [sp, #(8 * 0)] |
| ldp x0, x1, [sp, #(8 * 2)] |
| add sp, sp, #(8 * 4) |
| 1: .org __smccc_workaround_1_smc + __SMCCC_WORKAROUND_1_SMC_SZ |
| .org 1b |
| SYM_DATA_END(__smccc_workaround_1_smc) |
