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Paging: mapped kernel, fb, early-mem, HHDM

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xamidev
2026-01-02 13:40:44 +01:00
parent bb5fb9db33
commit c065df6ff3
4 changed files with 188 additions and 15 deletions
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20
src/kmain.c
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@@ -38,6 +38,13 @@ static volatile struct limine_hhdm_request hhdm_request = {
.revision = 0
};
// Executable Address/Kernel Address (find base phys/virt address of kernel)
__attribute__((used, section(".limine_requests")))
static volatile struct limine_kernel_address_request kerneladdr_request = {
.id = LIMINE_KERNEL_ADDRESS_REQUEST,
.revision = 0
};
__attribute__((used, section(".limine_requests_start")))
static volatile LIMINE_REQUESTS_START_MARKER;
@@ -61,10 +68,12 @@ void kmain()
if (!LIMINE_BASE_REVISION_SUPPORTED) hcf();
if (framebuffer_request.response == NULL || framebuffer_request.response->framebuffer_count < 1) hcf();
// We should probably grab all the boot info in a boot context struct
// that would be a bit cleaner than this mess
// Get the first framebuffer from the response
framebuffer = framebuffer_request.response->framebuffers[0];
term_init();
serial_init();
if (memmap_request.response == NULL) hcf();
@@ -73,8 +82,8 @@ void kmain()
if (hhdm_request.response == NULL) hcf();
hhdm_display(hhdm_request.response);
pmm_init(memmap_request.response, hhdm_request.response);
paging_init();
if (kerneladdr_request.response == NULL) hcf();
DEBUG("kernel: phys_base=0x%p virt_base=0x%p", kerneladdr_request.response->physical_base, kerneladdr_request.response->virtual_base);
CLEAR_INTERRUPTS;
gdt_init();
@@ -82,11 +91,16 @@ void kmain()
timer_init();
SET_INTERRUPTS;
pmm_init(memmap_request.response, hhdm_request.response);
paging_init(kerneladdr_request.response, framebuffer);
keyboard_init(FR);
term_init();
// Draw something
printf("%s, %s!\n", "Hello", "world");
// Yoohoooooo!
//DEBUG("kernel initialized successfully! hanging... wow=%d", 42);
printf("Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed non justo a magna bibendum auctor viverra rutrum diam. In hac habitasse platea dictumst. Vestibulum suscipit ipsum eget tortor maximus lobortis. Donec vel ipsum id lacus fringilla bibendum id eget risus. Fusce vestibulum diam sit amet nunc ultricies, nec rutrum nibh congue. Donec fringilla a dui sit amet ullamcorper. Donec pharetra quis tortor id congue. Aliquam erat volutpat. Duis suscipit nulla vel ligula iaculis, in gravida mauris pellentesque. Vestibulum nunc nisl, posuere eu eros et, dictum molestie dolor. Donec posuere laoreet hendrerit. Suspendisse potenti. Proin fringilla vehicula malesuada. Quisque a dui est. Orci varius natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. Curabitur nec aliquam lacus, at lacinia enim. ");
hcf();
}