mirror of
https://github.com/freebsd/freebsd-src
synced 2024-07-21 18:27:22 +00:00
353b6a5bcb
Add a function to support devices that may need to know if the kernel has enabled the Armv8.1 Virtulization Host Extensions (FEAT_VHE). Some devices, e.g. the generic timer, will need to know, e.g. use a different interrupt. Sponsored by: Arm Ltd Differential Revision: https://reviews.freebsd.org/D43973
71 lines
2.2 KiB
C
71 lines
2.2 KiB
C
/*-
|
|
* Copyright (c) 2013 Andrew Turner <andrew@freebsd.org>
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#ifndef _MACHINE_MACHDEP_H_
|
|
#define _MACHINE_MACHDEP_H_
|
|
|
|
#ifdef _KERNEL
|
|
|
|
struct arm64_bootparams {
|
|
vm_offset_t modulep;
|
|
vm_offset_t kern_stack;
|
|
vm_paddr_t kern_ttbr0;
|
|
uint64_t hcr_el2;
|
|
int boot_el; /* EL the kernel booted from */
|
|
int pad;
|
|
};
|
|
|
|
enum arm64_bus {
|
|
ARM64_BUS_NONE,
|
|
ARM64_BUS_FDT,
|
|
ARM64_BUS_ACPI,
|
|
};
|
|
|
|
extern enum arm64_bus arm64_bus_method;
|
|
|
|
void dbg_init(void);
|
|
bool has_hyp(void);
|
|
bool in_vhe(void);
|
|
void initarm(struct arm64_bootparams *);
|
|
vm_offset_t parse_boot_param(struct arm64_bootparams *abp);
|
|
#ifdef FDT
|
|
void parse_fdt_bootargs(void);
|
|
#endif
|
|
int memory_mapping_mode(vm_paddr_t pa);
|
|
extern void (*pagezero)(void *);
|
|
|
|
#ifdef SOCDEV_PA
|
|
/*
|
|
* The virtual address SOCDEV_PA is mapped at.
|
|
* Only valid while the early pagetables are valid.
|
|
*/
|
|
extern uintptr_t socdev_va;
|
|
#endif
|
|
|
|
#endif /* _KERNEL */
|
|
|
|
#endif /* _MACHINE_MACHDEP_H_ */
|