31 lines
1.1 KiB
ArmAsm
31 lines
1.1 KiB
ArmAsm
/*
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* Copyright (c) 2020 Institute of Parallel And Distributed Systems (IPADS), Shanghai Jiao Tong University (SJTU)
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* OS-Lab-2020 (i.e., ChCore) is licensed under the Mulan PSL v1.
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* You can use this software according to the terms and conditions of the Mulan PSL v1.
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* You may obtain a copy of Mulan PSL v1 at:
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* http://license.coscl.org.cn/MulanPSL
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY OR FIT FOR A PARTICULAR
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* PURPOSE.
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* See the Mulan PSL v1 for more details.
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*/
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#include <common/asm.h>
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#include <common/vars.h>
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BEGIN_FUNC(start_kernel)
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/*
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* Code in bootloader specified only the primary
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* cpu with MPIDR = 0 can be boot here. So we directly
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* set the TPIDR_EL1 to 0, which represent the logical
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* cpuid in the kernel
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*/
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mov x3, #0
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msr TPIDR_EL1, x3
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ldr x2, =kernel_stack
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add x2, x2, KERNEL_STACK_SIZE
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mov sp, x2
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bl main
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END_FUNC(start_kernel)
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