diff options
Diffstat (limited to 'OvmfPkg/Library/LoadLinuxLib/Linux.c')
| -rw-r--r-- | OvmfPkg/Library/LoadLinuxLib/Linux.c | 670 |
1 files changed, 0 insertions, 670 deletions
diff --git a/OvmfPkg/Library/LoadLinuxLib/Linux.c b/OvmfPkg/Library/LoadLinuxLib/Linux.c deleted file mode 100644 index 9c996adfbb..0000000000 --- a/OvmfPkg/Library/LoadLinuxLib/Linux.c +++ /dev/null @@ -1,670 +0,0 @@ -/** @file
-
- Copyright (c) 2011 - 2014, Intel Corporation. All rights reserved.<BR>
-
- This program and the accompanying materials
- are licensed and made available under the terms and conditions of the BSD License
- which accompanies this distribution. The full text of the license may be found at
- http://opensource.org/licenses/bsd-license.php
-
- THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
- WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-
-**/
-
-#include "LoadLinuxLib.h"
-
-
-/**
- A simple check of the kernel setup image
-
- An assumption is made that the size of the data is at least the
- size of struct boot_params.
-
- @param[in] KernelSetup - The kernel setup image
-
- @retval EFI_SUCCESS - The kernel setup looks valid and supported
- @retval EFI_INVALID_PARAMETER - KernelSetup was NULL
- @retval EFI_UNSUPPORTED - The kernel setup is not valid or supported
-
-**/
-STATIC
-EFI_STATUS
-EFIAPI
-BasicKernelSetupCheck (
- IN VOID *KernelSetup
- )
-{
- return LoadLinuxCheckKernelSetup(KernelSetup, sizeof (struct boot_params));
-}
-
-
-EFI_STATUS
-EFIAPI
-LoadLinuxCheckKernelSetup (
- IN VOID *KernelSetup,
- IN UINTN KernelSetupSize
- )
-{
- struct boot_params *Bp;
-
- if (KernelSetup == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- if (KernelSetupSize < sizeof (*Bp)) {
- return EFI_UNSUPPORTED;
- }
-
- Bp = (struct boot_params*) KernelSetup;
-
- if ((Bp->hdr.signature != 0xAA55) || // Check boot sector signature
- (Bp->hdr.header != SETUP_HDR) ||
- (Bp->hdr.version < 0x205) || // We only support relocatable kernels
- (!Bp->hdr.relocatable_kernel)
- ) {
- return EFI_UNSUPPORTED;
- } else {
- return EFI_SUCCESS;
- }
-}
-
-
-UINTN
-EFIAPI
-LoadLinuxGetKernelSize (
- IN VOID *KernelSetup,
- IN UINTN KernelSize
- )
-{
- struct boot_params *Bp;
-
- if (EFI_ERROR (BasicKernelSetupCheck (KernelSetup))) {
- return 0;
- }
-
- Bp = (struct boot_params*) KernelSetup;
-
- if (Bp->hdr.version > 0x20a) {
- return Bp->hdr.init_size;
- } else {
- //
- // Add extra size for kernel decompression
- //
- return 3 * KernelSize;
- }
-}
-
-
-VOID*
-EFIAPI
-LoadLinuxAllocateKernelSetupPages (
- IN UINTN Pages
- )
-{
- EFI_STATUS Status;
- EFI_PHYSICAL_ADDRESS Address;
-
- Address = BASE_1GB;
- Status = gBS->AllocatePages (
- AllocateMaxAddress,
- EfiLoaderData,
- Pages,
- &Address
- );
- if (!EFI_ERROR (Status)) {
- return (VOID*)(UINTN) Address;
- } else {
- return NULL;
- }
-}
-
-EFI_STATUS
-EFIAPI
-LoadLinuxInitializeKernelSetup (
- IN VOID *KernelSetup
- )
-{
- EFI_STATUS Status;
- UINTN SetupEnd;
- struct boot_params *Bp;
-
- Status = BasicKernelSetupCheck (KernelSetup);
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- Bp = (struct boot_params*) KernelSetup;
-
- SetupEnd = 0x202 + (Bp->hdr.jump & 0xff);
-
- //
- // Clear all but the setup_header
- //
- ZeroMem (KernelSetup, 0x1f1);
- ZeroMem (((UINT8 *)KernelSetup) + SetupEnd, 4096 - SetupEnd);
- DEBUG ((EFI_D_INFO, "Cleared kernel setup 0-0x1f1, 0x%Lx-0x1000\n",
- (UINT64)SetupEnd));
-
- return EFI_SUCCESS;
-}
-
-VOID*
-EFIAPI
-LoadLinuxAllocateKernelPages (
- IN VOID *KernelSetup,
- IN UINTN Pages
- )
-{
- EFI_STATUS Status;
- EFI_PHYSICAL_ADDRESS KernelAddress;
- UINT32 Loop;
- struct boot_params *Bp;
-
- if (EFI_ERROR (BasicKernelSetupCheck (KernelSetup))) {
- return NULL;
- }
-
- Bp = (struct boot_params*) KernelSetup;
-
- for (Loop = 1; Loop < 512; Loop++) {
- KernelAddress = MultU64x32 (
- 2 * Bp->hdr.kernel_alignment,
- Loop
- );
- Status = gBS->AllocatePages (
- AllocateAddress,
- EfiLoaderData,
- Pages,
- &KernelAddress
- );
- if (!EFI_ERROR (Status)) {
- return (VOID*)(UINTN) KernelAddress;
- }
- }
-
- return NULL;
-}
-
-
-VOID*
-EFIAPI
-LoadLinuxAllocateCommandLinePages (
- IN UINTN Pages
- )
-{
- EFI_STATUS Status;
- EFI_PHYSICAL_ADDRESS Address;
-
- Address = 0xa0000;
- Status = gBS->AllocatePages (
- AllocateMaxAddress,
- EfiLoaderData,
- Pages,
- &Address
- );
- if (!EFI_ERROR (Status)) {
- return (VOID*)(UINTN) Address;
- } else {
- return NULL;
- }
-}
-
-
-VOID*
-EFIAPI
-LoadLinuxAllocateInitrdPages (
- IN VOID *KernelSetup,
- IN UINTN Pages
- )
-{
- EFI_STATUS Status;
- EFI_PHYSICAL_ADDRESS Address;
-
- struct boot_params *Bp;
-
- if (EFI_ERROR (BasicKernelSetupCheck (KernelSetup))) {
- return NULL;
- }
-
- Bp = (struct boot_params*) KernelSetup;
-
- Address = (EFI_PHYSICAL_ADDRESS)(UINTN) Bp->hdr.ramdisk_max;
- Status = gBS->AllocatePages (
- AllocateMaxAddress,
- EfiLoaderData,
- Pages,
- &Address
- );
- if (!EFI_ERROR (Status)) {
- return (VOID*)(UINTN) Address;
- } else {
- return NULL;
- }
-}
-
-
-STATIC
-VOID
-SetupLinuxMemmap (
- IN OUT struct boot_params *Bp
- )
-{
- EFI_STATUS Status;
- UINT8 TmpMemoryMap[1];
- UINTN MapKey;
- UINTN DescriptorSize;
- UINT32 DescriptorVersion;
- UINTN MemoryMapSize;
- EFI_MEMORY_DESCRIPTOR *MemoryMap;
- EFI_MEMORY_DESCRIPTOR *MemoryMapPtr;
- UINTN Index;
- struct efi_info *Efi;
- struct e820_entry *LastE820;
- struct e820_entry *E820;
- UINTN E820EntryCount;
- EFI_PHYSICAL_ADDRESS LastEndAddr;
-
- //
- // Get System MemoryMapSize
- //
- MemoryMapSize = sizeof (TmpMemoryMap);
- Status = gBS->GetMemoryMap (
- &MemoryMapSize,
- (EFI_MEMORY_DESCRIPTOR *)TmpMemoryMap,
- &MapKey,
- &DescriptorSize,
- &DescriptorVersion
- );
- ASSERT (Status == EFI_BUFFER_TOO_SMALL);
- //
- // Enlarge space here, because we will allocate pool now.
- //
- MemoryMapSize += EFI_PAGE_SIZE;
- Status = gBS->AllocatePool (
- EfiLoaderData,
- MemoryMapSize,
- (VOID **) &MemoryMap
- );
- ASSERT_EFI_ERROR (Status);
-
- //
- // Get System MemoryMap
- //
- Status = gBS->GetMemoryMap (
- &MemoryMapSize,
- MemoryMap,
- &MapKey,
- &DescriptorSize,
- &DescriptorVersion
- );
- ASSERT_EFI_ERROR (Status);
-
- LastE820 = NULL;
- E820 = &Bp->e820_map[0];
- E820EntryCount = 0;
- LastEndAddr = 0;
- MemoryMapPtr = MemoryMap;
- for (Index = 0; Index < (MemoryMapSize / DescriptorSize); Index++) {
- UINTN E820Type = 0;
-
- if (MemoryMap->NumberOfPages == 0) {
- continue;
- }
-
- switch(MemoryMap->Type) {
- case EfiReservedMemoryType:
- case EfiRuntimeServicesCode:
- case EfiRuntimeServicesData:
- case EfiMemoryMappedIO:
- case EfiMemoryMappedIOPortSpace:
- case EfiPalCode:
- E820Type = E820_RESERVED;
- break;
-
- case EfiUnusableMemory:
- E820Type = E820_UNUSABLE;
- break;
-
- case EfiACPIReclaimMemory:
- E820Type = E820_ACPI;
- break;
-
- case EfiLoaderCode:
- case EfiLoaderData:
- case EfiBootServicesCode:
- case EfiBootServicesData:
- case EfiConventionalMemory:
- E820Type = E820_RAM;
- break;
-
- case EfiACPIMemoryNVS:
- E820Type = E820_NVS;
- break;
-
- default:
- DEBUG ((
- EFI_D_ERROR,
- "Invalid EFI memory descriptor type (0x%x)!\n",
- MemoryMap->Type
- ));
- continue;
- }
-
- if ((LastE820 != NULL) &&
- (LastE820->type == (UINT32) E820Type) &&
- (MemoryMap->PhysicalStart == LastEndAddr)) {
- LastE820->size += EFI_PAGES_TO_SIZE ((UINTN) MemoryMap->NumberOfPages);
- LastEndAddr += EFI_PAGES_TO_SIZE ((UINTN) MemoryMap->NumberOfPages);
- } else {
- if (E820EntryCount >= (sizeof (Bp->e820_map) / sizeof (Bp->e820_map[0]))) {
- break;
- }
- E820->type = (UINT32) E820Type;
- E820->addr = MemoryMap->PhysicalStart;
- E820->size = EFI_PAGES_TO_SIZE ((UINTN) MemoryMap->NumberOfPages);
- LastE820 = E820;
- LastEndAddr = E820->addr + E820->size;
- E820++;
- E820EntryCount++;
- }
-
- //
- // Get next item
- //
- MemoryMap = (EFI_MEMORY_DESCRIPTOR *)((UINTN)MemoryMap + DescriptorSize);
- }
- Bp->e820_entries = (UINT8) E820EntryCount;
-
- Efi = &Bp->efi_info;
- Efi->efi_systab = (UINT32)(UINTN) gST;
- Efi->efi_memdesc_size = (UINT32) DescriptorSize;
- Efi->efi_memdesc_version = DescriptorVersion;
- Efi->efi_memmap = (UINT32)(UINTN) MemoryMapPtr;
- Efi->efi_memmap_size = (UINT32) MemoryMapSize;
-#ifdef MDE_CPU_IA32
- Efi->efi_loader_signature = SIGNATURE_32 ('E', 'L', '3', '2');
-#else
- Efi->efi_systab_hi = (UINT32) (((UINT64)(UINTN) gST) >> 32);
- Efi->efi_memmap_hi = (UINT32) (((UINT64)(UINTN) MemoryMapPtr) >> 32);
- Efi->efi_loader_signature = SIGNATURE_32 ('E', 'L', '6', '4');
-#endif
-
- gBS->ExitBootServices (gImageHandle, MapKey);
-}
-
-
-EFI_STATUS
-EFIAPI
-LoadLinuxSetCommandLine (
- IN OUT VOID *KernelSetup,
- IN CHAR8 *CommandLine
- )
-{
- EFI_STATUS Status;
- struct boot_params *Bp;
-
- Status = BasicKernelSetupCheck (KernelSetup);
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- Bp = (struct boot_params*) KernelSetup;
-
- Bp->hdr.cmd_line_ptr = (UINT32)(UINTN) CommandLine;
-
- return EFI_SUCCESS;
-}
-
-
-EFI_STATUS
-EFIAPI
-LoadLinuxSetInitrd (
- IN OUT VOID *KernelSetup,
- IN VOID *Initrd,
- IN UINTN InitrdSize
- )
-{
- EFI_STATUS Status;
- struct boot_params *Bp;
-
- Status = BasicKernelSetupCheck (KernelSetup);
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- Bp = (struct boot_params*) KernelSetup;
-
- Bp->hdr.ramdisk_start = (UINT32)(UINTN) Initrd;
- Bp->hdr.ramdisk_len = (UINT32) InitrdSize;
-
- return EFI_SUCCESS;
-}
-
-
-STATIC VOID
-FindBits (
- unsigned long Mask,
- UINT8 *Pos,
- UINT8 *Size
- )
-{
- UINT8 First, Len;
-
- First = 0;
- Len = 0;
-
- if (Mask) {
- while (!(Mask & 0x1)) {
- Mask = Mask >> 1;
- First++;
- }
-
- while (Mask & 0x1) {
- Mask = Mask >> 1;
- Len++;
- }
- }
- *Pos = First;
- *Size = Len;
-}
-
-
-STATIC
-EFI_STATUS
-SetupGraphicsFromGop (
- struct screen_info *Si,
- EFI_GRAPHICS_OUTPUT_PROTOCOL *Gop
- )
-{
- EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *Info;
- EFI_STATUS Status;
- UINTN Size;
-
- Status = Gop->QueryMode(Gop, Gop->Mode->Mode, &Size, &Info);
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- /* We found a GOP */
-
- /* EFI framebuffer */
- Si->orig_video_isVGA = 0x70;
-
- Si->orig_x = 0;
- Si->orig_y = 0;
- Si->orig_video_page = 0;
- Si->orig_video_mode = 0;
- Si->orig_video_cols = 0;
- Si->orig_video_lines = 0;
- Si->orig_video_ega_bx = 0;
- Si->orig_video_points = 0;
-
- Si->lfb_base = (UINT32) Gop->Mode->FrameBufferBase;
- Si->lfb_size = (UINT32) Gop->Mode->FrameBufferSize;
- Si->lfb_width = (UINT16) Info->HorizontalResolution;
- Si->lfb_height = (UINT16) Info->VerticalResolution;
- Si->pages = 1;
- Si->vesapm_seg = 0;
- Si->vesapm_off = 0;
-
- if (Info->PixelFormat == PixelRedGreenBlueReserved8BitPerColor) {
- Si->lfb_depth = 32;
- Si->red_size = 8;
- Si->red_pos = 0;
- Si->green_size = 8;
- Si->green_pos = 8;
- Si->blue_size = 8;
- Si->blue_pos = 16;
- Si->rsvd_size = 8;
- Si->rsvd_pos = 24;
- Si->lfb_linelength = (UINT16) (Info->PixelsPerScanLine * 4);
-
- } else if (Info->PixelFormat == PixelBlueGreenRedReserved8BitPerColor) {
- Si->lfb_depth = 32;
- Si->red_size = 8;
- Si->red_pos = 16;
- Si->green_size = 8;
- Si->green_pos = 8;
- Si->blue_size = 8;
- Si->blue_pos = 0;
- Si->rsvd_size = 8;
- Si->rsvd_pos = 24;
- Si->lfb_linelength = (UINT16) (Info->PixelsPerScanLine * 4);
- } else if (Info->PixelFormat == PixelBitMask) {
- FindBits(Info->PixelInformation.RedMask,
- &Si->red_pos, &Si->red_size);
- FindBits(Info->PixelInformation.GreenMask,
- &Si->green_pos, &Si->green_size);
- FindBits(Info->PixelInformation.BlueMask,
- &Si->blue_pos, &Si->blue_size);
- FindBits(Info->PixelInformation.ReservedMask,
- &Si->rsvd_pos, &Si->rsvd_size);
- Si->lfb_depth = Si->red_size + Si->green_size +
- Si->blue_size + Si->rsvd_size;
- Si->lfb_linelength = (UINT16) ((Info->PixelsPerScanLine * Si->lfb_depth) / 8);
- } else {
- Si->lfb_depth = 4;
- Si->red_size = 0;
- Si->red_pos = 0;
- Si->green_size = 0;
- Si->green_pos = 0;
- Si->blue_size = 0;
- Si->blue_pos = 0;
- Si->rsvd_size = 0;
- Si->rsvd_pos = 0;
- Si->lfb_linelength = Si->lfb_width / 2;
- }
-
- return Status;
-}
-
-
-STATIC
-EFI_STATUS
-SetupGraphics (
- IN OUT struct boot_params *Bp
- )
-{
- EFI_STATUS Status;
- EFI_HANDLE *HandleBuffer;
- UINTN HandleCount;
- UINTN Index;
- EFI_GRAPHICS_OUTPUT_PROTOCOL *Gop;
-
- ZeroMem ((VOID*)&Bp->screen_info, sizeof(Bp->screen_info));
-
- Status = gBS->LocateHandleBuffer (
- ByProtocol,
- &gEfiGraphicsOutputProtocolGuid,
- NULL,
- &HandleCount,
- &HandleBuffer
- );
- if (!EFI_ERROR (Status)) {
- for (Index = 0; Index < HandleCount; Index++) {
- Status = gBS->HandleProtocol (
- HandleBuffer[Index],
- &gEfiGraphicsOutputProtocolGuid,
- (VOID*) &Gop
- );
- if (EFI_ERROR (Status)) {
- continue;
- }
-
- Status = SetupGraphicsFromGop (&Bp->screen_info, Gop);
- if (!EFI_ERROR (Status)) {
- FreePool (HandleBuffer);
- return EFI_SUCCESS;
- }
- }
-
- FreePool (HandleBuffer);
- }
-
- return EFI_NOT_FOUND;
-}
-
-
-STATIC
-EFI_STATUS
-SetupLinuxBootParams (
- IN OUT struct boot_params *Bp
- )
-{
- SetupGraphics (Bp);
-
- SetupLinuxMemmap (Bp);
-
- return EFI_SUCCESS;
-}
-
-
-EFI_STATUS
-EFIAPI
-LoadLinux (
- IN VOID *Kernel,
- IN OUT VOID *KernelSetup
- )
-{
- EFI_STATUS Status;
- struct boot_params *Bp;
-
- Status = BasicKernelSetupCheck (KernelSetup);
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- Bp = (struct boot_params *) KernelSetup;
-
- if (Bp->hdr.version < 0x205 || !Bp->hdr.relocatable_kernel) {
- //
- // We only support relocatable kernels
- //
- return EFI_UNSUPPORTED;
- }
-
- InitLinuxDescriptorTables ();
-
- Bp->hdr.code32_start = (UINT32)(UINTN) Kernel;
- if (Bp->hdr.version >= 0x20c && Bp->hdr.handover_offset &&
- (Bp->hdr.xloadflags & (sizeof (UINTN) == 4 ? BIT2 : BIT3))) {
- DEBUG ((EFI_D_INFO, "Jumping to kernel EFI handover point at ofs %x\n", Bp->hdr.handover_offset));
-
- DisableInterrupts ();
- JumpToUefiKernel ((VOID*) gImageHandle, (VOID*) gST, KernelSetup, Kernel);
- }
-
- //
- // Old kernels without EFI handover protocol
- //
- SetupLinuxBootParams (KernelSetup);
-
- DEBUG ((EFI_D_INFO, "Jumping to kernel\n"));
- DisableInterrupts ();
- SetLinuxDescriptorTables ();
- JumpToKernel (Kernel, (VOID*) KernelSetup);
-
- return EFI_SUCCESS;
-}
-
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