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[metal] Allow programs larger than 440 KiB to run in bare metal mode (#685)

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* [metal] Copy program pages to extended memory at startup
* [metal] Reclaim base memory pages for later app use
* [metal] Load program pages beyond 1st 440 KiB to extended memory

o//examples/hellolua.com now runs correctly under QEMU (in
legacy BIOS mode).

* [metal] Place GDT in read/write segment

The CPU absolutely needs to alter the GDT when loading the
task register (via ltr).  To account for this, I move the
GDT into a read/write data section.  There is still a "rump"
read-only GDT in the text section that is used by the real
mode bootloader.

We also delay the loading of the task register (ltr) until
after the IDT and TSS are finally set up.

* [metal] Get examples/vga2.c serial output working for UEFI boot
* [metal] Get examples/vga2.c VGA output working for UEFI boot
* [metal] Allow munmap() to reclaim dynamically allocated pages
* Place TLS sections right after .text, not after embedded zip file

Co-authored-by: tkchia <tkchia-cosmo@gmx.com>
This commit is contained in:
tkchia 2022-12-18 09:51:20 +08:00 • committed by GitHub
parent 120079b0a6
commit 0da47c51de
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
16 changed files with 725 additions and 191 deletions
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80
libc/nt/efi.h
View file

@ -97,6 +97,12 @@
0x8E, 0x3F, 0x00, 0xA0, 0xC9, 0x69, 0x72, 0x3B \
} \
}
#define GRAPHICS_OUTPUT_PROTOCOL \
{ \
0x9042A9DE, 0x23DC, 0x4A38, { \
0x96, 0xFB, 0x7A, 0xDE, 0xD0, 0x80, 0x51, 0x6A \
} \
}
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
@ -113,6 +119,7 @@ COSMOPOLITAN_C_START_
typedef struct _EFI_SIMPLE_TEXT_INPUT_PROTOCOL EFI_SIMPLE_TEXT_INPUT_PROTOCOL;
typedef struct _EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL;
typedef struct _EFI_GRAPHICS_OUTPUT_PROTOCOL EFI_GRAPHICS_OUTPUT_PROTOCOL;
typedef enum {
EfiReservedMemoryType,
@ -214,6 +221,54 @@ typedef struct {
bool CursorVisible;
} EFI_SIMPLE_TEXT_OUTPUT_MODE;
typedef enum {
PixelRedGreenBlueReserved8BitPerColor,
PixelBlueGreenRedReserved8BitPerColor,
PixelBitMask,
PixelBltOnly,
PixelFormatMax
} EFI_GRAPHICS_PIXEL_FORMAT;
typedef struct {
uint32_t RedMask;
uint32_t GreenMask;
uint32_t BlueMask;
uint32_t ReservedMask;
} EFI_PIXEL_BITMASK;
typedef struct {
uint32_t Version;
uint32_t HorizontalResolution;
uint32_t VerticalResolution;
EFI_GRAPHICS_PIXEL_FORMAT PixelFormat;
EFI_PIXEL_BITMASK PixelInformation;
uint32_t PixelsPerScanLine;
} EFI_GRAPHICS_OUTPUT_MODE_INFORMATION;
typedef struct {
uint8_t Blue;
uint8_t Green;
uint8_t Red;
uint8_t Reserved;
} EFI_GRAPHICS_OUTPUT_BLT_PIXEL;
typedef enum {
EfiBltVideoFill,
EfiBltVideoToBltBuffer,
EfiBltBufferToVideo,
EfiBltVideoToVideo,
EfiGraphicsOutputBltOperationMax
} EFI_GRAPHICS_OUTPUT_BLT_OPERATION;
typedef struct {
uint32_t MaxMode;
uint32_t Mode;
EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *Info;
uint32_t SizeOfInfo;
uint64_t FrameBufferBase;
uint32_t FrameBufferSize;
} EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE;
typedef struct {
uint64_t Signature;
uint32_t Revision;
@ -300,6 +355,9 @@ typedef EFI_STATUS(EFIAPI *EFI_SET_WATCHDOG_TIMER)(uintptr_t Timeout,
uint64_t WatchdogCode,
uintptr_t DataSize,
char16_t *opt_WatchdogData);
typedef EFI_STATUS(EFIAPI *EFI_LOCATE_PROTOCOL)(EFI_GUID *Protocol,
void *Registration,
void *Interface);
typedef EFI_STATUS(EFIAPI *EFI_SET_TIME)(EFI_TIME *Time);
typedef EFI_STATUS(EFIAPI *EFI_GET_TIME)(
@ -343,6 +401,19 @@ typedef EFI_STATUS(EFIAPI *EFI_TEXT_SET_CURSOR_POSITION)(
typedef EFI_STATUS(EFIAPI *EFI_TEXT_ENABLE_CURSOR)(
EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This, bool Visible);
typedef EFI_STATUS(EFIAPI *EFI_GRAPHICS_OUTPUT_PROTOCOL_QUERY_MODE)(
EFI_GRAPHICS_OUTPUT_PROTOCOL *This, uint32_t ModeNumber,
uint32_t *SizeOfInfo, EFI_GRAPHICS_OUTPUT_MODE_INFORMATION **Info);
typedef EFI_STATUS(EFIAPI *EFI_GRAPHICS_OUTPUT_PROTOCOL_SET_MODE)(
EFI_GRAPHICS_OUTPUT_PROTOCOL *This, uint32_t ModeNumber);
typedef EFI_STATUS(EFIAPI *EFI_GRAPHICS_OUTPUT_PROTOCOL_BLT)(
EFI_GRAPHICS_OUTPUT_PROTOCOL *This,
EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BltBuffer,
EFI_GRAPHICS_OUTPUT_BLT_OPERATION BltOperation,
uint32_t SourceX, uint32_t SourceY,
uint32_t DestinationX, uint32_t DestinationY,
uint32_t Width, uint32_t Height, uint32_t Delta);
typedef EFI_STATUS(EFIAPI *EFI_HANDLE_PROTOCOL)(EFI_HANDLE Handle,
EFI_GUID *Protocol,
void *out_Interface);
@ -414,7 +485,7 @@ typedef struct {
void *OpenProtocolInformation;
void *ProtocolsPerHandle;
void *LocateHandleBuffer;
void *LocateProtocol;
EFI_LOCATE_PROTOCOL LocateProtocol;
void *InstallMultipleProtocolInterfaces;
void *UninstallMultipleProtocolInterfaces;
void *CalculateCrc32;
@ -458,6 +529,13 @@ struct _EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL {
EFI_SIMPLE_TEXT_OUTPUT_MODE *Mode;
};
struct _EFI_GRAPHICS_OUTPUT_PROTOCOL {
EFI_GRAPHICS_OUTPUT_PROTOCOL_QUERY_MODE QueryMode;
EFI_GRAPHICS_OUTPUT_PROTOCOL_SET_MODE SetMode;
EFI_GRAPHICS_OUTPUT_PROTOCOL_BLT Blt;
EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE *Mode;
};
typedef struct {
uint32_t Revision;
EFI_HANDLE ParentHandle;