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pmm: Increase the max size of the memory map

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This commit is contained in:
mintsuki 2021-09-02 04:23:09 +02:00
parent 86780fc776
commit 5217f50bbd
4 changed files with 7 additions and 6 deletions
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8
stage23/lib/blib.c
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@ -182,7 +182,7 @@ bool efi_exit_boot_services(void) {
// Go through new EFI memmap and free up bootloader entries
size_t entry_count = efi_mmap_size / efi_desc_size;
EFI_MEMORY_DESCRIPTOR *efi_copy = ext_mem_alloc(256 * efi_desc_size);
EFI_MEMORY_DESCRIPTOR *efi_copy = ext_mem_alloc(MEMMAP_MAX_ENTRIES * efi_desc_size);
size_t efi_copy_i = 0;
for (size_t i = 0; i < entry_count; i++) {
@ -205,7 +205,7 @@ bool efi_exit_boot_services(void) {
new_entry->NumberOfPages = (untouched_memmap[j].base - base) / 4096;
efi_copy_i++;
if (efi_copy_i == 256) {
if (efi_copy_i == MEMMAP_MAX_ENTRIES) {
panic("efi: New memory map exhausted");
}
new_entry = (void *)efi_copy + efi_copy_i * efi_desc_size;
@ -234,7 +234,7 @@ bool efi_exit_boot_services(void) {
new_entry->NumberOfPages = untouched_memmap[j].length / 4096;
efi_copy_i++;
if (efi_copy_i == 256) {
if (efi_copy_i == MEMMAP_MAX_ENTRIES) {
panic("efi: New memory map exhausted");
}
new_entry = (void *)efi_copy + efi_copy_i * efi_desc_size;
@ -249,7 +249,7 @@ bool efi_exit_boot_services(void) {
}
efi_copy_i++;
if (efi_copy_i == 256) {
if (efi_copy_i == MEMMAP_MAX_ENTRIES) {
panic("efi: New memory map exhausted");
}
}

2
stage23/mm/pmm.h
View File

@ -6,6 +6,8 @@
#include <stdbool.h>
#include <sys/e820.h>
#define MEMMAP_MAX_ENTRIES 1024
#define MEMMAP_USABLE 1
#define MEMMAP_RESERVED 2
#define MEMMAP_ACPI_RECLAIMABLE 3

1
stage23/mm/pmm.s2.c
View File

@ -12,7 +12,6 @@
#endif
#define PAGE_SIZE 4096
#define MEMMAP_MAX_ENTRIES 384
#if bios == 1
extern symbol bss_end;

2
stage23/sys/e820.s2.c
View File

@ -8,7 +8,7 @@
#include <lib/print.h>
#include <mm/pmm.h>
#define MAX_E820_ENTRIES 256
#define MAX_E820_ENTRIES 512
struct e820_entry_t e820_map[MAX_E820_ENTRIES];
size_t e820_entries = 0;