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OvmfPkg/VirtNorFlashDxe: drop block I/O protocol implementation

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We never boot from NOR flash, and generally rely on the firmware volume
PI protocols to expose the contents. So drop the block I/O protocol
implementation from VirtNorFlashDxe.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Sunil V L <sunilvl@ventanamicro.com>
This commit is contained in:
Ard Biesheuvel
2022-10-24 17:12:08 +02:00
committed by mergify[bot]
parent 68d234989b
commit 83f11f9572
5 changed files with 45 additions and 154 deletions
Download Patch File Download Diff File Expand all files Collapse all files

55
OvmfPkg/VirtNorFlashDxe/VirtNorFlashFvb.c
View File

@@ -89,7 +89,7 @@ InitializeFvAndVariableStoreHeaders (
}
// Check if the size of the area is at least one block size
if ((NvStorageVariableSize <= 0) || (NvStorageVariableSize / Instance->Media.BlockSize <= 0)) {
if ((NvStorageVariableSize <= 0) || (NvStorageVariableSize / Instance->BlockSize <= 0)) {
DEBUG ((
DEBUG_ERROR,
"%a: NvStorageVariableSize is 0x%x, should be atleast one block size\n",
@@ -99,7 +99,7 @@ InitializeFvAndVariableStoreHeaders (
return EFI_INVALID_PARAMETER;
}
if ((NvStorageFtwWorkingSize <= 0) || (NvStorageFtwWorkingSize / Instance->Media.BlockSize <= 0)) {
if ((NvStorageFtwWorkingSize <= 0) || (NvStorageFtwWorkingSize / Instance->BlockSize <= 0)) {
DEBUG ((
DEBUG_ERROR,
"%a: NvStorageFtwWorkingSize is 0x%x, should be atleast one block size\n",
@@ -109,7 +109,7 @@ InitializeFvAndVariableStoreHeaders (
return EFI_INVALID_PARAMETER;
}
if ((NvStorageFtwSpareSize <= 0) || (NvStorageFtwSpareSize / Instance->Media.BlockSize <= 0)) {
if ((NvStorageFtwSpareSize <= 0) || (NvStorageFtwSpareSize / Instance->BlockSize <= 0)) {
DEBUG ((
DEBUG_ERROR,
"%a: NvStorageFtwSpareSize is 0x%x, should be atleast one block size\n",
@@ -120,9 +120,9 @@ InitializeFvAndVariableStoreHeaders (
}
// Ensure the Variable area Base Addresses are aligned on a block size boundaries
if ((NvStorageVariableBase % Instance->Media.BlockSize != 0) ||
(NvStorageFtwWorkingBase % Instance->Media.BlockSize != 0) ||
(NvStorageFtwSpareBase % Instance->Media.BlockSize != 0))
if ((NvStorageVariableBase % Instance->BlockSize != 0) ||
(NvStorageFtwWorkingBase % Instance->BlockSize != 0) ||
(NvStorageFtwSpareBase % Instance->BlockSize != 0))
{
DEBUG ((DEBUG_ERROR, "%a: NvStorage Base addresses must be aligned to block size boundaries", __FUNCTION__));
return EFI_INVALID_PARAMETER;
@@ -149,8 +149,8 @@ InitializeFvAndVariableStoreHeaders (
);
FirmwareVolumeHeader->HeaderLength = sizeof (EFI_FIRMWARE_VOLUME_HEADER) + sizeof (EFI_FV_BLOCK_MAP_ENTRY);
FirmwareVolumeHeader->Revision = EFI_FVH_REVISION;
FirmwareVolumeHeader->BlockMap[0].NumBlocks = Instance->Media.LastBlock + 1;
FirmwareVolumeHeader->BlockMap[0].Length = Instance->Media.BlockSize;
FirmwareVolumeHeader->BlockMap[0].NumBlocks = Instance->LastBlock + 1;
FirmwareVolumeHeader->BlockMap[0].Length = Instance->BlockSize;
FirmwareVolumeHeader->BlockMap[1].NumBlocks = 0;
FirmwareVolumeHeader->BlockMap[1].Length = 0;
FirmwareVolumeHeader->Checksum = CalculateCheckSum16 ((UINT16 *)FirmwareVolumeHeader, FirmwareVolumeHeader->HeaderLength);
@@ -284,9 +284,6 @@ FvbGetAttributes (
)
{
EFI_FVB_ATTRIBUTES_2 FlashFvbAttributes;
NOR_FLASH_INSTANCE *Instance;
Instance = INSTANCE_FROM_FVB_THIS (This);
FlashFvbAttributes = (EFI_FVB_ATTRIBUTES_2)(
@@ -294,17 +291,12 @@ FvbGetAttributes (
EFI_FVB2_READ_STATUS | // Reads are currently enabled
EFI_FVB2_STICKY_WRITE | // A block erase is required to flip bits into EFI_FVB2_ERASE_POLARITY
EFI_FVB2_MEMORY_MAPPED | // It is memory mapped
EFI_FVB2_ERASE_POLARITY // After erasure all bits take this value (i.e. '1')
EFI_FVB2_ERASE_POLARITY | // After erasure all bits take this value (i.e. '1')
EFI_FVB2_WRITE_STATUS | // Writes are currently enabled
EFI_FVB2_WRITE_ENABLED_CAP // Writes may be enabled
);
// Check if it is write protected
if (Instance->Media.ReadOnly != TRUE) {
FlashFvbAttributes = FlashFvbAttributes |
EFI_FVB2_WRITE_STATUS | // Writes are currently enabled
EFI_FVB2_WRITE_ENABLED_CAP; // Writes may be enabled
}
*Attributes = FlashFvbAttributes;
DEBUG ((DEBUG_BLKIO, "FvbGetAttributes(0x%X)\n", *Attributes));
@@ -418,15 +410,15 @@ FvbGetBlockSize (
Instance = INSTANCE_FROM_FVB_THIS (This);
DEBUG ((DEBUG_BLKIO, "FvbGetBlockSize(Lba=%ld, BlockSize=0x%x, LastBlock=%ld)\n", Lba, Instance->Media.BlockSize, Instance->Media.LastBlock));
DEBUG ((DEBUG_BLKIO, "FvbGetBlockSize(Lba=%ld, BlockSize=0x%x, LastBlock=%ld)\n", Lba, Instance->BlockSize, Instance->LastBlock));
if (Lba > Instance->Media.LastBlock) {
DEBUG ((DEBUG_ERROR, "FvbGetBlockSize: ERROR - Parameter LBA %ld is beyond the last Lba (%ld).\n", Lba, Instance->Media.LastBlock));
if (Lba > Instance->LastBlock) {
DEBUG ((DEBUG_ERROR, "FvbGetBlockSize: ERROR - Parameter LBA %ld is beyond the last Lba (%ld).\n", Lba, Instance->LastBlock));
Status = EFI_INVALID_PARAMETER;
} else {
// This is easy because in this platform each NorFlash device has equal sized blocks.
*BlockSize = (UINTN)Instance->Media.BlockSize;
*NumberOfBlocks = (UINTN)(Instance->Media.LastBlock - Lba + 1);
*BlockSize = (UINTN)Instance->BlockSize;
*NumberOfBlocks = (UINTN)(Instance->LastBlock - Lba + 1);
DEBUG ((DEBUG_BLKIO, "FvbGetBlockSize: *BlockSize=0x%x, *NumberOfBlocks=0x%x.\n", *BlockSize, *NumberOfBlocks));
@@ -498,7 +490,7 @@ FvbRead (
TempStatus = EFI_SUCCESS;
// Cache the block size to avoid de-referencing pointers all the time
BlockSize = Instance->Media.BlockSize;
BlockSize = Instance->BlockSize;
DEBUG ((DEBUG_BLKIO, "FvbRead: Check if (Offset=0x%x + NumBytes=0x%x) <= BlockSize=0x%x\n", Offset, *NumBytes, BlockSize));
@@ -669,13 +661,6 @@ FvbEraseBlocks (
Status = EFI_SUCCESS;
// Detect WriteDisabled state
if (Instance->Media.ReadOnly == TRUE) {
// Firmware volume is in WriteDisabled state
DEBUG ((DEBUG_ERROR, "FvbEraseBlocks: ERROR - Device is in WriteDisabled state.\n"));
return EFI_ACCESS_DENIED;
}
// Before erasing, check the entire list of parameters to ensure all specified blocks are valid
VA_START (Args, This);
@@ -698,9 +683,9 @@ FvbEraseBlocks (
"FvbEraseBlocks: Check if: ( StartingLba=%ld + NumOfLba=%Lu - 1 ) > LastBlock=%ld.\n",
Instance->StartLba + StartingLba,
(UINT64)NumOfLba,
Instance->Media.LastBlock
Instance->LastBlock
));
if ((NumOfLba == 0) || ((Instance->StartLba + StartingLba + NumOfLba - 1) > Instance->Media.LastBlock)) {
if ((NumOfLba == 0) || ((Instance->StartLba + StartingLba + NumOfLba - 1) > Instance->LastBlock)) {
VA_END (Args);
DEBUG ((DEBUG_ERROR, "FvbEraseBlocks: ERROR - Lba range goes past the last Lba.\n"));
Status = EFI_INVALID_PARAMETER;
@@ -733,7 +718,7 @@ FvbEraseBlocks (
BlockAddress = GET_NOR_BLOCK_ADDRESS (
Instance->RegionBaseAddress,
Instance->StartLba + StartingLba,
Instance->Media.BlockSize
Instance->BlockSize
);
// Erase it