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Added initrd over serial to UEFI and docs

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bzt 2020-09-20 01:43:33 +02:00
parent e80c8cc9ab
commit 6e56f2280f
11 changed files with 114 additions and 8 deletions
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2
OLVASSEL.md
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@ -120,7 +120,7 @@ Kifejezések
* _initrd_: induló [ramlemez kép](https://gitlab.com/bztsrc/bootboot/blob/master/README.md#installation)
(lehet ROM-ban vagy flash-en, vagy egy GPT boot partíción BOOTBOOT\INITRD néven, vagy kitöltheti az egész partíciót, de akár
hálózatról vagy GRUB modulként is betöltehető). A formátuma és a holléte nincs meghatározva (a jó rész :-) ) és gzip tömörítést
hálózatról, soros vonalról vagy GRUB modulként is betöltehető). A formátuma és a holléte nincs meghatározva (a jó rész :-) ) és gzip tömörítést
is használhat.
* _betöltő_: (loader) egy natív futtatható a boot partíción vagy ROM-ban. Többarchitektúrás lemezeken több

2
README.md
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@ -122,7 +122,7 @@ Glossary
* _initrd_: initial [ramdisk image](https://gitlab.com/bztsrc/bootboot/blob/master/README.md#installation)
(probably in ROM or flash, or on a GPT boot partition at BOOTBOOT\INITRD, or it can occupy the whole partition, or can be loaded
over the network or as a GRUB module). It's format and whereabouts are not specified (the good part :-) ) and can be optionally gzip compressed.
over the network, over serial line or as a GRUB module). It's format and whereabouts are not specified (the good part :-) ) and can be optionally gzip compressed.
* _loader_: a native executable on the boot partition or in ROM. For multi-bootable disks
more loader implementations can co-exists.

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bootboot_spec_1_kiad.pdf
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bootboot_spec_1st_ed.pdf
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dist/bootboot.efi vendored
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dist/bootboot.rom vendored
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images/disk-x86.img.gz
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mkbootimg-Linux.zip
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mkbootimg/data.c
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2
mkbootimg/data.h
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@ -2,7 +2,7 @@
extern unsigned char binary_boot_bin[512];
extern unsigned char binary_bootboot_bin[12288];
extern unsigned char binary_bootboot_efi[99396];
extern unsigned char binary_bootboot_efi[100420];
extern unsigned char binary_bootboot_img[34672];
extern unsigned char binary_LICENCE_broadcom[1594];
extern unsigned char binary_bootcode_bin[52480];

114
x86_64-efi/bootboot.c
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@ -275,6 +275,71 @@ typedef struct {
} EFI_PCI_OPTION_ROM_TABLE;
#endif
#ifndef EFI_SERIAL_IO_PROTOCOL_GUID
#define EFI_SERIAL_IO_PROTOCOL_GUID \
{ 0xBB25CF6F, 0xF1D4, 0x11D2, {0x9A, 0x0C, 0x00, 0x90, 0x27, 0x3F, 0xC1, 0xFD} }
typedef enum {
DefaultParity,
NoParity,
EvenParity,
OddParity,
MarkParity,
SpaceParity
} EFI_PARITY_TYPE;
typedef enum {
DefaultStopBits,
OneStopBit, // 1 stop bit
OneFiveStopBits, // 1.5 stop bits
TwoStopBits // 2 stop bits
} EFI_STOP_BITS_TYPE;
typedef
EFI_STATUS
(EFIAPI *EFI_SERIAL_DUMMY)(
IN EFI_SERIAL_IO_PROTOCOL *This
);
typedef
EFI_STATUS
(EFIAPI *EFI_SERIAL_SET_ATTRIBUTES) (
IN struct _EFI_SERIAL_IO_PROTOCOL *This,
IN UINT64 BaudRate,
IN UINT32 ReceiveFifoDepth,
IN UINT32 Timeout,
IN EFI_PARITY_TYPE Parity,
IN UINT8 DataBits,
IN EFI_STOP_BITS_TYPE StopBits
);
typedef
EFI_STATUS
(EFIAPI *EFI_SERIAL_WRITE) (
IN struct _EFI_SERIAL_IO_PROTOCOL *This,
IN OUT UINTN *BufferSize,
IN VOID *Buffer
);
typedef
EFI_STATUS
(EFIAPI *EFI_SERIAL_READ) (
IN struct _EFI_SERIAL_IO_PROTOCOL *This,
IN OUT UINTN *BufferSize,
OUT VOID *Buffer
);
typedef struct _EFI_SERIAL_IO_PROTOCOL {
UINT32 Revision;
EFI_SERIAL_DUMMY Reset;
EFI_SERIAL_SET_ATTRIBUTES SetAttributes;
EFI_SERIAL_DUMMY SetControl;
EFI_SERIAL_DUMMY GetControl;
EFI_SERIAL_WRITE Write;
EFI_SERIAL_READ Read;
} EFI_SERIAL_IO_PROTOCOL;
#endif
/*** other defines and structs ***/
typedef struct {
UINT8 magic[8];
@ -1022,14 +1087,14 @@ EFI_STATUS
GetLFB()
{
EFI_STATUS status;
EFI_GRAPHICS_OUTPUT_PROTOCOL *gop;
EFI_GRAPHICS_OUTPUT_PROTOCOL *gop = NULL;
EFI_GUID gopGuid = EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID;
EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *info;
UINTN i, imax, SizeOfInfo, nativeMode, selectedMode=9999, sw=0, sh=0, valid;
//GOP
status = uefi_call_wrapper(BS->LocateProtocol, 3, &gopGuid, NULL, (void**)&gop);
if(EFI_ERROR(status))
if(EFI_ERROR(status) && gop)
return status;
// minimum resolution
@ -1363,10 +1428,12 @@ efi_main (EFI_HANDLE image, EFI_SYSTEM_TABLE *systab)
#if USE_MP_SERVICES
EFI_EVENT Event;
EFI_GUID mpspGuid = EFI_MP_SERVICES_PROTOCOL_GUID;
EFI_MP_SERVICES_PROTOCOL *mp;
EFI_MP_SERVICES_PROTOCOL *mp = NULL;
UINT8 pibuffer[100];
EFI_PROCESSOR_INFORMATION *pibuf=(EFI_PROCESSOR_INFORMATION*)pibuffer;
#endif
EFI_GUID SerIoGuid = EFI_SERIAL_IO_PROTOCOL_GUID;
EFI_SERIAL_IO_PROTOCOL *ser = NULL;
UINTN bsp_num=0, i, j=0, x,y, handle_size=0,memory_map_size=0, map_key=0, desc_size=0;
UINT32 desc_version=0;
UINT64 lba_s=0,lba_e=0,sysptr;
@ -1478,6 +1545,45 @@ efi_main (EFI_HANDLE image, EFI_SYSTEM_TABLE *systab)
foundinrom:
uefi_call_wrapper(BS->FreePages, 2, (EFI_PHYSICAL_ADDRESS)memory_map, (memory_map_size+PAGESIZE-1)/PAGESIZE);
}
// try reading the initrd from serial line
if(EFI_ERROR(status) || initrd.ptr==NULL){
status = uefi_call_wrapper(BS->LocateProtocol, 3, &SerIoGuid, NULL, (void**)&ser);
if(!EFI_ERROR(status) && ser) {
// 1000 microsec timeout, mode 115200,8,n,1
status = uefi_call_wrapper(ser->SetAttributes, 7, ser, 115200, 0, 1000, NoParity, 8, OneStopBit);
if(!EFI_ERROR(status)) {
i = 3;
uefi_call_wrapper(ser->Write, 3, ser, &i, "\003\003\003");
i = 4; initrd.size = 0;
status = uefi_call_wrapper(ser->Read, 3, ser, &i, (VOID*)&initrd.size);
if(!EFI_ERROR(status) && i == 4) {
i = 2;
if(initrd.size < 32 || initrd.size >= INITRD_MAXSIZE*1024*1024) {
uefi_call_wrapper(ser->Write, 3, ser, &i, "SE");
initrd.size = 0;
status = EFI_LOAD_ERROR;
} else {
uefi_call_wrapper(BS->AllocatePages, 4, 0, 2, (initrd.size+PAGESIZE-1)/PAGESIZE,
(EFI_PHYSICAL_ADDRESS*)&initrd.ptr);
if (initrd.ptr == NULL) {
uefi_call_wrapper(ser->Write, 3, ser, &i, "SE");
return report(EFI_OUT_OF_RESOURCES,L"AllocatePages");
}
uefi_call_wrapper(ser->Write, 3, ser, &i, "OK");
i = initrd.size;
status = uefi_call_wrapper(ser->Read, 3, ser, &i, (VOID*)initrd.ptr);
if(EFI_ERROR(status) || i != initrd.size) {
uefi_call_wrapper(BS->FreePages, 2, (EFI_PHYSICAL_ADDRESS)initrd.ptr,
(initrd.size+PAGESIZE-1)/PAGESIZE);
initrd.ptr = NULL;
initrd.size = 0;
status = EFI_LOAD_ERROR;
}
}
}
}
}
}
// fall back to INITRD on filesystem
if(EFI_ERROR(status) || initrd.ptr==NULL){
// if the user presses any key now, we fallback to backup initrd
@ -1718,7 +1824,7 @@ gzerr: return report(EFI_COMPROMISED_DATA,L"Unable to uncompress");
// Symmetric Multi Processing support
#if USE_MP_SERVICES
status = uefi_call_wrapper(BS->LocateProtocol, 3, &mpspGuid, NULL, (void**)&mp);
if(!EFI_ERROR(status)) {
if(!EFI_ERROR(status) && mp) {
// override default values in bootboot struct
status = uefi_call_wrapper(mp->GetNumberOfProcessors, 3, mp, &i, &j);
if(!EFI_ERROR(status)) {