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multiboot2: add EFI memory map tag

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Signed-off-by: Andy-Python-Programmer <andypythonappdeveloper@gmail.com>
This commit is contained in:
Andy-Python-Programmer 2021-09-11 15:06:51 +10:00
parent 5d2ce0d117
commit 42f821f043
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GPG Key ID: 80E0357347554B89
1 changed files with 25 additions and 6 deletions
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31
stage23/protos/multiboot2.c
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@ -15,6 +15,7 @@
#include <mm/vmm.h>
#include <lib/acpi.h>
#include <mm/pmm.h>
#include <lib/blib.h>
#include <drivers/vga_textmode.h>
static uint8_t* multiboot2_info_buffer = NULL;
@ -220,7 +221,7 @@ void multiboot2_load(char *config, char* cmdline) {
struct fb_info fbinfo;
if (!fb_init(&fbinfo, req_width, req_height, req_bpp))
panic("stivale: Unable to set video mode");
panic("mutltiboot2: Unable to set video mode");
memmap_alloc_range(fbinfo.framebuffer_addr,
(uint64_t)fbinfo.framebuffer_pitch * fbinfo.framebuffer_height,
@ -297,14 +298,14 @@ void multiboot2_load(char *config, char* cmdline) {
efi_exit_boot_services();
#endif
size_t mb_mmap_count;
struct e820_entry_t *raw_memmap = get_raw_memmap(&mb_mmap_count);
//////////////////////////////////////////////
// Create bootloader memory map tag
// Create memory map tag
//////////////////////////////////////////////
{
size_t mb_mmap_count;
struct e820_entry_t *raw_memmap = get_raw_memmap(&mb_mmap_count);
// 1. Create the normal memory map tag.
// Create the normal memory map tag.
uint32_t mmap_size = sizeof(struct multiboot_tag_mmap) + sizeof(struct multiboot_mmap_entry) * mb_mmap_count;
struct multiboot_tag_mmap* mmap_tag = (struct multiboot_tag_mmap*)push_boot_param(NULL, mmap_size);
@ -322,6 +323,24 @@ void multiboot2_load(char *config, char* cmdline) {
}
}
//////////////////////////////////////////////
// Create EFI memory map tag
//////////////////////////////////////////////
#if uefi == 1
{
// Create the EFI memory map tag.
uint32_t size = sizeof(struct multiboot_tag_efi_mmap) * efi_mmap_size;
struct multiboot_tag_efi_mmap* mmap_tag = (struct multiboot_tag_efi_mmap*)push_boot_param(NULL, size);
mmap_tag->type = MULTIBOOT_TAG_TYPE_EFI_MMAP;
mmap_tag->descr_vers = efi_desc_ver;
mmap_tag->descr_size = efi_desc_size;
// Copy over the EFI memory map.
memcpy(mmap_tag->efi_mmap, efi_mmap, efi_mmap_size);
}
#endif
//////////////////////////////////////////////
// Create end tag
//////////////////////////////////////////////