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[feat] BootLoader -> Kernel

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pyao12
2026-05-29 19:25:56 +08:00
Unverified
parent c31fb52ea3
commit 2496349657
7 changed files with 302 additions and 37 deletions
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kernel/memory/pmm.cpp
+8 -7
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@@ -1,7 +1,8 @@
#include <memory/pmm.h>
#include <efilib.h>
#include <serial.h>
extern EFI_SYSTEM_TABLE *ST;
pmm_t g_pmm;
static inline void bitmap_set(UINTN idx) {
@@ -31,7 +32,7 @@ EFI_STATUS pmm_init() {
UINT32 desc_version;
EFI_STATUS status = uefi_call_wrapper(
(void*)ST->BootServices->GetMemoryMap, 5,
ST->BootServices->GetMemoryMap, 5,
&map_size, NULL, &map_key, &desc_size, &desc_version
);
@@ -39,17 +40,17 @@ EFI_STATUS pmm_init() {
EFI_MEMORY_DESCRIPTOR* mem_map = NULL;
status = uefi_call_wrapper(
(void*)ST->BootServices->AllocatePool, 3,
ST->BootServices->AllocatePool, 3,
EfiLoaderData, map_size, (void**)&mem_map
);
if (EFI_ERROR(status)) return status;
status = uefi_call_wrapper(
(void*)ST->BootServices->GetMemoryMap, 5,
ST->BootServices->GetMemoryMap, 5,
&map_size, mem_map, &map_key, &desc_size, &desc_version
);
if (EFI_ERROR(status)) {
uefi_call_wrapper((void*)ST->BootServices->FreePool, 1, mem_map);
uefi_call_wrapper(ST->BootServices->FreePool, 1, mem_map);
return status;
}
@@ -96,7 +97,7 @@ EFI_STATUS pmm_init() {
if (bitmap_addr == 0) {
serial_write("PMM: ERROR - no space for bitmap!\n");
uefi_call_wrapper((void*)ST->BootServices->FreePool, 1, mem_map);
uefi_call_wrapper(ST->BootServices->FreePool, 1, mem_map);
return EFI_OUT_OF_RESOURCES;
}
@@ -155,7 +156,7 @@ EFI_STATUS pmm_init() {
}
if (prev) *(void**)prev = NULL;
uefi_call_wrapper((void*)ST->BootServices->FreePool, 1, mem_map);
uefi_call_wrapper(ST->BootServices->FreePool, 1, mem_map);
serial_write("PMM: init OK, total ");
serial_write_hex(total_pages);