35 lines
No EOL
1.9 KiB
C
35 lines
No EOL
1.9 KiB
C
/*********************************************************************************/
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/* Module Name: gdt.c */
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/* Project: AurixOS */
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/* */
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/* Copyright (c) 2024-2025 Jozef Nagy */
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/* */
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/* This source is subject to the MIT License. */
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/* See License.txt in the root of this repository. */
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/* All other rights reserved. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR */
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/* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, */
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/* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE */
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/* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER */
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/* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, */
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/* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE */
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/* SOFTWARE. */
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/*********************************************************************************/
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#include <arch/cpu/gdt.h>
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#include <arch/mm/paging.h>
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#include <stdint.h>
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void gdt_set_entry(struct gdt_descriptor *entry, uint32_t base, uint32_t limit, uint8_t access,
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uint8_t flags)
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{
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entry->limit_low = (limit >> 8) & 0xffff;
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entry->base_low = (base >> 8) & 0xffff;
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entry->base_mid = (base >> 16) & 0xff;
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entry->access = access;
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entry->limit_high = (limit >> 16) & 0xf;
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entry->flags = flags;
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entry->base_high = (base >> 24) & 0xff;
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} |