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Initial ramdisk support

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- Create initrd library to support definitions and loading
- Allow tools compiled for the host machine to be built by wscript
- Create makerd tool to build initrd from manifest
- Move screenfont to initrd, so don't load framebuffer initially
This commit is contained in:
Justin C. Miller
2018-09-05 22:42:18 -07:00
parent dc40c2f6ad
commit 1758ee4215
20 changed files with 592 additions and 181 deletions
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26
src/boot/loader.c
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@@ -7,7 +7,7 @@
#define PAGE_SIZE 0x1000
static CHAR16 kernel_name[] = KERNEL_FILENAME;
static CHAR16 font_name[] = KERNEL_FONT;
static CHAR16 initrd_name[] = INITRD_FILENAME;
EFI_STATUS
loader_alloc_pages(
@@ -38,7 +38,7 @@ loader_alloc_pages(
}
EFI_STATUS
loader_load_font(
loader_load_initrd(
EFI_BOOT_SERVICES *bootsvc,
EFI_FILE_PROTOCOL *root,
struct loader_data *data)
@@ -46,13 +46,13 @@ loader_load_font(
EFI_STATUS status;
EFI_FILE_PROTOCOL *file = NULL;
status = root->Open(root, &file, (CHAR16 *)font_name, EFI_FILE_MODE_READ,
status = root->Open(root, &file, (CHAR16 *)initrd_name, EFI_FILE_MODE_READ,
EFI_FILE_READ_ONLY | EFI_FILE_HIDDEN | EFI_FILE_SYSTEM);
if (status == EFI_NOT_FOUND)
return status;
CHECK_EFI_STATUS_OR_RETURN(status, L"Opening file %s", font_name);
CHECK_EFI_STATUS_OR_RETURN(status, L"Opening file %s", initrd_name);
char info[sizeof(EFI_FILE_INFO) + 100];
size_t info_length = sizeof(info);
@@ -60,16 +60,16 @@ loader_load_font(
status = file->GetInfo(file, &guid_file_info, &info_length, info);
CHECK_EFI_STATUS_OR_RETURN(status, L"Getting file info");
data->font_length = ((EFI_FILE_INFO *)info)->FileSize;
data->initrd_length = ((EFI_FILE_INFO *)info)->FileSize;
status = loader_alloc_pages(
bootsvc,
KERNEL_FONT_MEMTYPE,
&data->font_length,
&data->font);
INITRD_MEMTYPE,
&data->initrd_length,
&data->initrd);
CHECK_EFI_STATUS_OR_RETURN(status, L"Allocating pages");
status = file->Read(file, &data->font_length, data->font);
status = file->Read(file, &data->initrd_length, data->initrd);
CHECK_EFI_STATUS_OR_RETURN(status, L"Reading file");
status = file->Close(file);
@@ -217,12 +217,12 @@ loader_load_kernel(
CHECK_EFI_STATUS_OR_RETURN(status, L"loader_load_elf: %s", kernel_name);
data->font = (void *)((uint64_t)data->kernel + data->kernel_length);
status = loader_load_font(bootsvc, root, data);
data->initrd = (void *)((uint64_t)data->kernel + data->kernel_length);
status = loader_load_initrd(bootsvc, root, data);
CHECK_EFI_STATUS_OR_RETURN(status, L"loader_load_file: %s", font_name);
CHECK_EFI_STATUS_OR_RETURN(status, L"loader_load_file: %s", initrd_name);
data->data = (void *)((uint64_t)data->font + data->font_length);
data->data = (void *)((uint64_t)data->initrd + data->initrd_length);
data->data_length += PAGE_SIZE; // extra page for map growth
status = loader_alloc_pages(
bootsvc,