Files
rtems/bsps/aarch64/xen/start/bspstartmmu.c
2025-07-11 11:36:51 -05:00

68 lines
2.2 KiB
C

/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
*
* @ingroup RTEMSBSPsAArch64Xen
*
* @brief This source file contains the default MMU tables and setup.
*/
/*
* Copyright (C) 2025 On-Line Applications Research Corporation (OAR)
* Written by Kinsey Moore <kinsey.moore@oarcorp.com>
*
* 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 COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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.
*/
#include <bsp.h>
#include <bsp/aarch64-mmu.h>
#include <libcpu/mmu-vmsav8-64.h>
#include <rtems/malloc.h>
#include <rtems/sysinit.h>
BSP_START_TEXT_SECTION void
xen_setup_mmu_and_cache( void )
{
aarch64_mmu_control *control = &aarch64_mmu_instance;
aarch64_mmu_setup();
aarch64_mmu_setup_translation_table(
control,
&aarch64_mmu_config_table[ 0 ],
aarch64_mmu_config_table_size
);
aarch64_mmu_enable( control );
}
BSP_START_TEXT_SECTION void xen_setup_secondary_cpu_mmu_and_cache( void )
{
aarch64_mmu_control *control = &aarch64_mmu_instance;
/* Perform basic MMU setup */
aarch64_mmu_setup();
aarch64_mmu_enable( control );
}