/*
* Copyright 2020-2021, Haiku, Inc. All rights reserved.
* Distributed under the terms of the MIT License.
*/
#include <asm_defs.h>
.text
/* status_t arch_enter_kernel(uint64 satp, struct kernel_args *kernelArgs,
addr_t kernelEntry, addr_t kernelStackTop)
a0 - SATP register value
a1 - kernelArgs
a2 - kernelEntry
a3 - kernelStackTop
*/
FUNCTION(arch_enter_kernel):
csrw satp, a0
sfence.vma
// set the kernel stack
mv sp, a3
# li fp, 0
# li ra, 0
// Setup kernel args
mv a0, a1 // kernelArgs
mv t0, a2
li a1, 0 // currentCPU=0
// call the kernel
jr t0
// return
li a0,-1 // B_ERROR
ret
FUNCTION_END(arch_enter_kernel)
