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https://github.com/zephyrproject-rtos/zephyr
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1f6f977f05
This was being done inconsistently in arch_new_thread(), just move to the core kernel. Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
57 lines
1.6 KiB
C
57 lines
1.6 KiB
C
/*
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* Copyright (c) 2019 Intel Corporation
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <kernel.h>
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#include <ksched.h>
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#include <kernel_structs.h>
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#include <kernel_internal.h>
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#include <offsets_short.h>
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extern void x86_sse_init(struct k_thread *); /* in locore.S */
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void arch_new_thread(struct k_thread *thread, k_thread_stack_t *stack,
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size_t stack_size, k_thread_entry_t entry,
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void *parameter1, void *parameter2, void *parameter3,
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int priority, unsigned int options)
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{
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void *switch_entry;
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z_new_thread_init(thread, Z_THREAD_STACK_BUFFER(stack), stack_size);
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#if CONFIG_X86_STACK_PROTECTION
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struct z_x86_thread_stack_header *header =
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(struct z_x86_thread_stack_header *)stack;
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/* Set guard area to read-only to catch stack overflows */
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z_x86_mmu_set_flags(&z_x86_kernel_ptables, &header->guard_page,
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MMU_PAGE_SIZE, MMU_ENTRY_READ, Z_X86_MMU_RW,
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true);
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#endif
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#ifdef CONFIG_USERSPACE
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switch_entry = z_x86_userspace_prepare_thread(thread);
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thread->arch.cs = X86_KERNEL_CS;
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thread->arch.ss = X86_KERNEL_DS;
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#else
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switch_entry = z_thread_entry;
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#endif
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thread->callee_saved.rsp = (long) Z_THREAD_STACK_BUFFER(stack);
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thread->callee_saved.rsp += (stack_size - 8); /* fake RIP for ABI */
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thread->callee_saved.rip = (long) switch_entry;
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thread->callee_saved.rflags = EFLAGS_INITIAL;
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/* Parameters to entry point, which is populated in
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* thread->callee_saved.rip
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*/
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thread->arch.rdi = (long) entry;
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thread->arch.rsi = (long) parameter1;
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thread->arch.rdx = (long) parameter2;
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thread->arch.rcx = (long) parameter3;
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x86_sse_init(thread);
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thread->arch.flags = X86_THREAD_FLAG_ALL;
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thread->switch_handle = thread;
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}
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