diff options
Diffstat (limited to 'OvmfPkg/QemuFlashFvbServicesRuntimeDxe/QemuFlash.c')
| -rw-r--r-- | OvmfPkg/QemuFlashFvbServicesRuntimeDxe/QemuFlash.c | 90 |
1 files changed, 45 insertions, 45 deletions
diff --git a/OvmfPkg/QemuFlashFvbServicesRuntimeDxe/QemuFlash.c b/OvmfPkg/QemuFlashFvbServicesRuntimeDxe/QemuFlash.c index d19997032e..54f859de9f 100644 --- a/OvmfPkg/QemuFlashFvbServicesRuntimeDxe/QemuFlash.c +++ b/OvmfPkg/QemuFlashFvbServicesRuntimeDxe/QemuFlash.c @@ -24,23 +24,21 @@ #define CLEARED_ARRAY_STATUS 0x00
+UINT8 *mFlashBase;
-UINT8 *mFlashBase;
-
-STATIC UINTN mFdBlockSize = 0;
-STATIC UINTN mFdBlockCount = 0;
+STATIC UINTN mFdBlockSize = 0;
+STATIC UINTN mFdBlockCount = 0;
STATIC
-volatile UINT8*
+volatile UINT8 *
QemuFlashPtr (
- IN EFI_LBA Lba,
- IN UINTN Offset
+ IN EFI_LBA Lba,
+ IN UINTN Offset
)
{
return mFlashBase + ((UINTN)Lba * mFdBlockSize) + Offset;
}
-
/**
Determines if the QEMU flash memory device is present.
@@ -54,22 +52,23 @@ QemuFlashDetected ( VOID
)
{
- BOOLEAN FlashDetected;
+ BOOLEAN FlashDetected;
volatile UINT8 *Ptr;
- UINTN Offset;
- UINT8 OriginalUint8;
- UINT8 ProbeUint8;
+ UINTN Offset;
+ UINT8 OriginalUint8;
+ UINT8 ProbeUint8;
FlashDetected = FALSE;
- Ptr = QemuFlashPtr (0, 0);
+ Ptr = QemuFlashPtr (0, 0);
for (Offset = 0; Offset < mFdBlockSize; Offset++) {
- Ptr = QemuFlashPtr (0, Offset);
+ Ptr = QemuFlashPtr (0, Offset);
ProbeUint8 = *Ptr;
- if (ProbeUint8 != CLEAR_STATUS_CMD &&
- ProbeUint8 != READ_STATUS_CMD &&
- ProbeUint8 != CLEARED_ARRAY_STATUS) {
+ if ((ProbeUint8 != CLEAR_STATUS_CMD) &&
+ (ProbeUint8 != READ_STATUS_CMD) &&
+ (ProbeUint8 != CLEARED_ARRAY_STATUS))
+ {
break;
}
}
@@ -91,20 +90,23 @@ QemuFlashDetected ( // the FD appears as ROM and not as FLASH, but report FLASH anyway because
// FLASH behavior can be simulated using VMGEXIT.
//
- DEBUG ((DEBUG_INFO,
- "QEMU Flash: SEV-ES enabled, assuming FD behaves as FLASH\n"));
+ DEBUG ((
+ DEBUG_INFO,
+ "QEMU Flash: SEV-ES enabled, assuming FD behaves as FLASH\n"
+ ));
return TRUE;
}
OriginalUint8 = *Ptr;
- *Ptr = CLEAR_STATUS_CMD;
- ProbeUint8 = *Ptr;
- if (OriginalUint8 != CLEAR_STATUS_CMD &&
- ProbeUint8 == CLEAR_STATUS_CMD) {
+ *Ptr = CLEAR_STATUS_CMD;
+ ProbeUint8 = *Ptr;
+ if ((OriginalUint8 != CLEAR_STATUS_CMD) &&
+ (ProbeUint8 == CLEAR_STATUS_CMD))
+ {
DEBUG ((DEBUG_INFO, "QemuFlashDetected => FD behaves as RAM\n"));
*Ptr = OriginalUint8;
} else {
- *Ptr = READ_STATUS_CMD;
+ *Ptr = READ_STATUS_CMD;
ProbeUint8 = *Ptr;
if (ProbeUint8 == OriginalUint8) {
DEBUG ((DEBUG_INFO, "QemuFlashDetected => FD behaves as ROM\n"));
@@ -114,16 +116,18 @@ QemuFlashDetected ( } else if (ProbeUint8 == CLEARED_ARRAY_STATUS) {
DEBUG ((DEBUG_INFO, "QemuFlashDetected => FD behaves as FLASH\n"));
FlashDetected = TRUE;
- *Ptr = READ_ARRAY_CMD;
+ *Ptr = READ_ARRAY_CMD;
}
}
- DEBUG ((DEBUG_INFO, "QemuFlashDetected => %a\n",
- FlashDetected ? "Yes" : "No"));
+ DEBUG ((
+ DEBUG_INFO,
+ "QemuFlashDetected => %a\n",
+ FlashDetected ? "Yes" : "No"
+ ));
return FlashDetected;
}
-
/**
Read from QEMU Flash
@@ -136,10 +140,10 @@ QemuFlashDetected ( **/
EFI_STATUS
QemuFlashRead (
- IN EFI_LBA Lba,
- IN UINTN Offset,
- IN UINTN *NumBytes,
- IN UINT8 *Buffer
+ IN EFI_LBA Lba,
+ IN UINTN Offset,
+ IN UINTN *NumBytes,
+ IN UINT8 *Buffer
)
{
UINT8 *Ptr;
@@ -155,14 +159,13 @@ QemuFlashRead ( //
// Get flash address
//
- Ptr = (UINT8*) QemuFlashPtr (Lba, Offset);
+ Ptr = (UINT8 *)QemuFlashPtr (Lba, Offset);
CopyMem (Buffer, Ptr, *NumBytes);
return EFI_SUCCESS;
}
-
/**
Write to QEMU Flash
@@ -175,10 +178,10 @@ QemuFlashRead ( **/
EFI_STATUS
QemuFlashWrite (
- IN EFI_LBA Lba,
- IN UINTN Offset,
- IN UINTN *NumBytes,
- IN UINT8 *Buffer
+ IN EFI_LBA Lba,
+ IN UINTN Offset,
+ IN UINTN *NumBytes,
+ IN UINT8 *Buffer
)
{
volatile UINT8 *Ptr;
@@ -213,7 +216,6 @@ QemuFlashWrite ( return EFI_SUCCESS;
}
-
/**
Erase a QEMU Flash block
@@ -222,7 +224,7 @@ QemuFlashWrite ( **/
EFI_STATUS
QemuFlashEraseBlock (
- IN EFI_LBA Lba
+ IN EFI_LBA Lba
)
{
volatile UINT8 *Ptr;
@@ -237,7 +239,6 @@ QemuFlashEraseBlock ( return EFI_SUCCESS;
}
-
/**
Initializes QEMU flash memory support
@@ -250,16 +251,16 @@ QemuFlashInitialize ( VOID
)
{
- mFlashBase = (UINT8*)(UINTN) PcdGet32 (PcdOvmfFdBaseAddress);
+ mFlashBase = (UINT8 *)(UINTN)PcdGet32 (PcdOvmfFdBaseAddress);
mFdBlockSize = PcdGet32 (PcdOvmfFirmwareBlockSize);
- ASSERT(PcdGet32 (PcdOvmfFirmwareFdSize) % mFdBlockSize == 0);
+ ASSERT (PcdGet32 (PcdOvmfFirmwareFdSize) % mFdBlockSize == 0);
mFdBlockCount = PcdGet32 (PcdOvmfFirmwareFdSize) / mFdBlockSize;
//
// execute module specific hooks before probing the flash
//
QemuFlashBeforeProbe (
- (EFI_PHYSICAL_ADDRESS)(UINTN) mFlashBase,
+ (EFI_PHYSICAL_ADDRESS)(UINTN)mFlashBase,
mFdBlockSize,
mFdBlockCount
);
@@ -271,4 +272,3 @@ QemuFlashInitialize ( return EFI_SUCCESS;
}
-
|