/* SPDX-License-Identifier: GPL-2.0-or-later *//* * Copyright (c) 2012 Linaro Limited. */ #ifndef VIRT_H#define VIRT_H #include <asm/ptrace.h> /* * Flag indicating that the kernel was not entered in the same mode on every * CPU.  The zImage loader stashes this value in an SPSR, so we need an * architecturally defined flag bit here. */#define BOOT_CPU_MODE_MISMATCH	PSR_N_BIT #ifndef __ASSEMBLY__#include <asm/cacheflush.h> #ifdef CONFIG_ARM_VIRT_EXT/* * __boot_cpu_mode records what mode the primary CPU was booted in. * A correctly-implemented bootloader must start all CPUs in the same mode: * if it fails to do this, the flag BOOT_CPU_MODE_MISMATCH is set to indicate * that some CPU(s) were booted in a different mode. * * This allows the kernel to flag an error when the secondaries have come up. */extern int __boot_cpu_mode; static inline void sync_boot_mode(void){	/*	 * As secondaries write to __boot_cpu_mode with caches disabled, we	 * must flush the corresponding cache entries to ensure the visibility	 * of their writes.	 */	sync_cache_r(&__boot_cpu_mode);} #else#define __boot_cpu_mode	(SVC_MODE)#define sync_boot_mode()#endif #ifndef ZIMAGEvoid hyp_mode_check(void); /* Reports the availability of HYP mode */static inline bool is_hyp_mode_available(void){	return ((__boot_cpu_mode & MODE_MASK) == HYP_MODE &&		!(__boot_cpu_mode & BOOT_CPU_MODE_MISMATCH));} /* Check if the bootloader has booted CPUs in different modes */static inline bool is_hyp_mode_mismatched(void){	return !!(__boot_cpu_mode & BOOT_CPU_MODE_MISMATCH);} static inline bool is_kernel_in_hyp_mode(void){	return false;} #endif #else /* Only assembly code should need those */ #define HVC_SET_VECTORS 0#define HVC_SOFT_RESTART 1 #endif /* __ASSEMBLY__ */ #define HVC_STUB_ERR	0xbadca11 #endif /* ! VIRT_H */