diff options
Diffstat (limited to 'OvmfPkg')
| -rw-r--r-- | OvmfPkg/Include/IndustryStandard/LsiScsi.h | 64 | ||||
| -rw-r--r-- | OvmfPkg/LsiScsiDxe/LsiScsi.c | 408 | ||||
| -rw-r--r-- | OvmfPkg/LsiScsiDxe/LsiScsi.h | 21 | ||||
| -rw-r--r-- | OvmfPkg/LsiScsiDxe/LsiScsiDxe.inf | 3 | ||||
| -rw-r--r-- | OvmfPkg/OvmfPkg.dec | 3 |
5 files changed, 498 insertions, 1 deletions
diff --git a/OvmfPkg/Include/IndustryStandard/LsiScsi.h b/OvmfPkg/Include/IndustryStandard/LsiScsi.h index 185e553..01d7532 100644 --- a/OvmfPkg/Include/IndustryStandard/LsiScsi.h +++ b/OvmfPkg/Include/IndustryStandard/LsiScsi.h @@ -25,6 +25,19 @@ #define LSI_REG_DSP 0x2C
#define LSI_REG_SIST0 0x42
#define LSI_REG_SIST1 0x43
+#define LSI_REG_CSBC 0xDC
+
+//
+// The status bits for DMA Status (DSTAT)
+//
+#define LSI_DSTAT_IID BIT0
+#define LSI_DSTAT_R BIT1
+#define LSI_DSTAT_SIR BIT2
+#define LSI_DSTAT_SSI BIT3
+#define LSI_DSTAT_ABRT BIT4
+#define LSI_DSTAT_BF BIT5
+#define LSI_DSTAT_MDPE BIT6
+#define LSI_DSTAT_DFE BIT7
//
// The status bits for Interrupt Status Zero (ISTAT0)
@@ -38,4 +51,55 @@ #define LSI_ISTAT0_SRST BIT6
#define LSI_ISTAT0_ABRT BIT7
+//
+// The status bits for SCSI Interrupt Status Zero (SIST0)
+//
+#define LSI_SIST0_PAR BIT0
+#define LSI_SIST0_RST BIT1
+#define LSI_SIST0_UDC BIT2
+#define LSI_SIST0_SGE BIT3
+#define LSI_SIST0_RSL BIT4
+#define LSI_SIST0_SEL BIT5
+#define LSI_SIST0_CMP BIT6
+#define LSI_SIST0_MA BIT7
+
+//
+// The status bits for SCSI Interrupt Status One (SIST1)
+//
+#define LSI_SIST1_HTH BIT0
+#define LSI_SIST1_GEN BIT1
+#define LSI_SIST1_STO BIT2
+#define LSI_SIST1_R3 BIT3
+#define LSI_SIST1_SBMC BIT4
+#define LSI_SIST1_R5 BIT5
+#define LSI_SIST1_R6 BIT6
+#define LSI_SIST1_R7 BIT7
+
+//
+// LSI 53C895A Script Instructions
+//
+#define LSI_INS_TYPE_BLK 0x00000000
+#define LSI_INS_TYPE_IO BIT30
+#define LSI_INS_TYPE_TC BIT31
+
+#define LSI_INS_BLK_SCSIP_DAT_OUT 0x00000000
+#define LSI_INS_BLK_SCSIP_DAT_IN BIT24
+#define LSI_INS_BLK_SCSIP_CMD BIT25
+#define LSI_INS_BLK_SCSIP_STAT (BIT24 | BIT25)
+#define LSI_INS_BLK_SCSIP_MSG_OUT (BIT25 | BIT26)
+#define LSI_INS_BLK_SCSIP_MSG_IN (BIT24 | BIT25 | BIT26)
+
+#define LSI_INS_IO_OPC_SEL 0x00000000
+#define LSI_INS_IO_OPC_WAIT_RESEL BIT28
+
+#define LSI_INS_TC_CP BIT17
+#define LSI_INS_TC_JMP BIT19
+#define LSI_INS_TC_RA BIT23
+
+#define LSI_INS_TC_OPC_JMP 0x00000000
+#define LSI_INS_TC_OPC_INT (BIT27 | BIT28)
+
+#define LSI_INS_TC_SCSIP_DAT_OUT 0x00000000
+#define LSI_INS_TC_SCSIP_MSG_IN (BIT24 | BIT25 | BIT26)
+
#endif // _LSI_SCSI_H_
diff --git a/OvmfPkg/LsiScsiDxe/LsiScsi.c b/OvmfPkg/LsiScsiDxe/LsiScsi.c index 9859632..ed5fc3b 100644 --- a/OvmfPkg/LsiScsiDxe/LsiScsi.c +++ b/OvmfPkg/LsiScsiDxe/LsiScsi.c @@ -45,6 +45,60 @@ Out8 ( STATIC
EFI_STATUS
+Out32 (
+ IN LSI_SCSI_DEV *Dev,
+ IN UINT32 Addr,
+ IN UINT32 Data
+ )
+{
+ return Dev->PciIo->Io.Write (
+ Dev->PciIo,
+ EfiPciIoWidthUint32,
+ PCI_BAR_IDX0,
+ Addr,
+ 1,
+ &Data
+ );
+}
+
+STATIC
+EFI_STATUS
+In8 (
+ IN LSI_SCSI_DEV *Dev,
+ IN UINT32 Addr,
+ OUT UINT8 *Data
+ )
+{
+ return Dev->PciIo->Io.Read (
+ Dev->PciIo,
+ EfiPciIoWidthUint8,
+ PCI_BAR_IDX0,
+ Addr,
+ 1,
+ Data
+ );
+}
+
+STATIC
+EFI_STATUS
+In32 (
+ IN LSI_SCSI_DEV *Dev,
+ IN UINT32 Addr,
+ OUT UINT32 *Data
+ )
+{
+ return Dev->PciIo->Io.Read (
+ Dev->PciIo,
+ EfiPciIoWidthUint32,
+ PCI_BAR_IDX0,
+ Addr,
+ 1,
+ Data
+ );
+}
+
+STATIC
+EFI_STATUS
LsiScsiReset (
IN LSI_SCSI_DEV *Dev
)
@@ -141,6 +195,357 @@ LsiScsiCheckRequest ( return EFI_SUCCESS;
}
+/**
+
+ Interpret the request packet from the Extended SCSI Pass Thru Protocol and
+ compose the script to submit the command and data to the controller.
+
+ @param[in] Dev The LSI 53C895A SCSI device the packet targets.
+
+ @param[in] Target The SCSI target controlled by the LSI 53C895A SCSI
+ device.
+
+ @param[in] Lun The Logical Unit Number under the SCSI target.
+
+ @param[in out] Packet The Extended SCSI Pass Thru Protocol packet.
+
+
+ @retval EFI_SUCCESS The Extended SCSI Pass Thru Protocol packet was valid.
+
+ @return Otherwise, invalid or unsupported parameters were
+ detected. Status codes are meant for direct forwarding
+ by the EFI_EXT_SCSI_PASS_THRU_PROTOCOL.PassThru()
+ implementation.
+
+ **/
+STATIC
+EFI_STATUS
+LsiScsiProcessRequest (
+ IN LSI_SCSI_DEV *Dev,
+ IN UINT8 Target,
+ IN UINT64 Lun,
+ IN OUT EFI_EXT_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *Packet
+ )
+{
+ EFI_STATUS Status;
+ UINT32 *Script;
+ UINT8 *Cdb;
+ UINT8 *MsgOut;
+ UINT8 *MsgIn;
+ UINT8 *ScsiStatus;
+ UINT8 *Data;
+ UINT8 DStat;
+ UINT8 SIst0;
+ UINT8 SIst1;
+ UINT32 Csbc;
+ UINT32 CsbcBase;
+ UINT32 Transferred;
+
+ Script = Dev->Dma->Script;
+ Cdb = Dev->Dma->Cdb;
+ Data = Dev->Dma->Data;
+ MsgIn = Dev->Dma->MsgIn;
+ MsgOut = &Dev->Dma->MsgOut;
+ ScsiStatus = &Dev->Dma->Status;
+
+ *ScsiStatus = 0xFF;
+
+ DStat = 0;
+ SIst0 = 0;
+ SIst1 = 0;
+
+ SetMem (Cdb, sizeof Dev->Dma->Cdb, 0x00);
+ CopyMem (Cdb, Packet->Cdb, Packet->CdbLength);
+
+ //
+ // Fetch the first Cumulative SCSI Byte Count (CSBC).
+ //
+ // CSBC is a cumulative counter of the actual number of bytes that have been
+ // transferred across the SCSI bus during data phases, i.e. it will not
+ // count bytes sent in command, status, message in and out phases.
+ //
+ Status = In32 (Dev, LSI_REG_CSBC, &CsbcBase);
+ if (EFI_ERROR (Status)) {
+ goto Error;
+ }
+
+ //
+ // Clean up the DMA buffer for the script.
+ //
+ SetMem (Script, sizeof Dev->Dma->Script, 0x00);
+
+ //
+ // Compose the script to transfer data between the host and the device.
+ //
+ // References:
+ // * LSI53C895A PCI to Ultra2 SCSI Controller Version 2.2
+ // - Chapter 5 SCSI SCRIPT Instruction Set
+ // * SEABIOS lsi-scsi driver
+ //
+ // All instructions used here consist of 2 32bit words. The first word
+ // contains the command to execute. The second word is loaded into the
+ // DMA SCRIPTS Pointer Save (DSPS) register as either the DMA address
+ // for data transmission or the address/offset for the jump command.
+ // Some commands, such as the selection of the target, don't need to
+ // transfer data through DMA or jump to another instruction, then DSPS
+ // has to be zero.
+ //
+ // There are 3 major parts in this script. The first part (1~3) contains
+ // the instructions to select target and LUN and send the SCSI command
+ // from the request packet. The second part (4~7) is to handle the
+ // potential disconnection and prepare for the data transmission. The
+ // instructions in the third part (8~10) transmit the given data and
+ // collect the result. Instruction 11 raises the interrupt and marks the
+ // end of the script.
+ //
+
+ //
+ // 1. Select target.
+ //
+ *Script++ = LSI_INS_TYPE_IO | LSI_INS_IO_OPC_SEL | (UINT32)Target << 16;
+ *Script++ = 0x00000000;
+
+ //
+ // 2. Select LUN.
+ //
+ *MsgOut = 0x80 | (UINT8) Lun; // 0x80: Identify bit
+ *Script++ = LSI_INS_TYPE_BLK | LSI_INS_BLK_SCSIP_MSG_OUT |
+ (UINT32)sizeof Dev->Dma->MsgOut;
+ *Script++ = LSI_SCSI_DMA_ADDR (Dev, MsgOut);
+
+ //
+ // 3. Send the SCSI Command.
+ //
+ *Script++ = LSI_INS_TYPE_BLK | LSI_INS_BLK_SCSIP_CMD |
+ (UINT32)sizeof Dev->Dma->Cdb;
+ *Script++ = LSI_SCSI_DMA_ADDR (Dev, Cdb);
+
+ //
+ // 4. Check whether the current SCSI phase is "Message In" or not
+ // and jump to 7 if it is.
+ // Note: LSI_INS_TC_RA stands for "Relative Address Mode", so the
+ // offset 0x18 in the second word means jumping forward
+ // 3 (0x18/8) instructions.
+ //
+ *Script++ = LSI_INS_TYPE_TC | LSI_INS_TC_OPC_JMP |
+ LSI_INS_TC_SCSIP_MSG_IN | LSI_INS_TC_RA |
+ LSI_INS_TC_CP;
+ *Script++ = 0x00000018;
+
+ //
+ // 5. Read "Message" from the initiator to trigger reselect.
+ //
+ *Script++ = LSI_INS_TYPE_BLK | LSI_INS_BLK_SCSIP_MSG_IN |
+ (UINT32)sizeof Dev->Dma->MsgIn;
+ *Script++ = LSI_SCSI_DMA_ADDR (Dev, MsgIn);
+
+ //
+ // 6. Wait reselect.
+ //
+ *Script++ = LSI_INS_TYPE_IO | LSI_INS_IO_OPC_WAIT_RESEL;
+ *Script++ = 0x00000000;
+
+ //
+ // 7. Read "Message" from the initiator again
+ //
+ *Script++ = LSI_INS_TYPE_BLK | LSI_INS_BLK_SCSIP_MSG_IN |
+ (UINT32)sizeof Dev->Dma->MsgIn;
+ *Script++ = LSI_SCSI_DMA_ADDR (Dev, MsgIn);
+
+ //
+ // 8. Set the DMA command for the read/write operations.
+ // Note: Some requests, e.g. "TEST UNIT READY", do not come with
+ // allocated InDataBuffer or OutDataBuffer. We skip the DMA
+ // data command for those requests or this script would fail
+ // with LSI_SIST0_SGE due to the zero data length.
+ //
+ // LsiScsiCheckRequest() prevents both integer overflows in the command
+ // opcodes, and buffer overflows.
+ //
+ if (Packet->InTransferLength > 0) {
+ ASSERT (Packet->DataDirection == EFI_EXT_SCSI_DATA_DIRECTION_READ);
+ ASSERT (Packet->InTransferLength <= sizeof Dev->Dma->Data);
+ *Script++ = LSI_INS_TYPE_BLK | LSI_INS_BLK_SCSIP_DAT_IN |
+ Packet->InTransferLength;
+ *Script++ = LSI_SCSI_DMA_ADDR (Dev, Data);
+ } else if (Packet->OutTransferLength > 0) {
+ ASSERT (Packet->DataDirection == EFI_EXT_SCSI_DATA_DIRECTION_WRITE);
+ ASSERT (Packet->OutTransferLength <= sizeof Dev->Dma->Data);
+ CopyMem (Data, Packet->OutDataBuffer, Packet->OutTransferLength);
+ *Script++ = LSI_INS_TYPE_BLK | LSI_INS_BLK_SCSIP_DAT_OUT |
+ Packet->OutTransferLength;
+ *Script++ = LSI_SCSI_DMA_ADDR (Dev, Data);
+ }
+
+ //
+ // 9. Get the SCSI status.
+ //
+ *Script++ = LSI_INS_TYPE_BLK | LSI_INS_BLK_SCSIP_STAT |
+ (UINT32)sizeof Dev->Dma->Status;
+ *Script++ = LSI_SCSI_DMA_ADDR (Dev, Status);
+
+ //
+ // 10. Get the SCSI message.
+ //
+ *Script++ = LSI_INS_TYPE_BLK | LSI_INS_BLK_SCSIP_MSG_IN |
+ (UINT32)sizeof Dev->Dma->MsgIn;
+ *Script++ = LSI_SCSI_DMA_ADDR (Dev, MsgIn);
+
+ //
+ // 11. Raise the interrupt to end the script.
+ //
+ *Script++ = LSI_INS_TYPE_TC | LSI_INS_TC_OPC_INT |
+ LSI_INS_TC_SCSIP_DAT_OUT | LSI_INS_TC_JMP;
+ *Script++ = 0x00000000;
+
+ //
+ // Make sure the size of the script doesn't exceed the buffer.
+ //
+ ASSERT (Script <= Dev->Dma->Script + ARRAY_SIZE (Dev->Dma->Script));
+
+ //
+ // The controller starts to execute the script once the DMA Script
+ // Pointer (DSP) register is set.
+ //
+ Status = Out32 (Dev, LSI_REG_DSP, LSI_SCSI_DMA_ADDR (Dev, Script));
+ if (EFI_ERROR (Status)) {
+ goto Error;
+ }
+
+ //
+ // Poll the device registers (DSTAT, SIST0, and SIST1) until the SIR
+ // bit sets.
+ //
+ for(;;) {
+ Status = In8 (Dev, LSI_REG_DSTAT, &DStat);
+ if (EFI_ERROR (Status)) {
+ goto Error;
+ }
+ Status = In8 (Dev, LSI_REG_SIST0, &SIst0);
+ if (EFI_ERROR (Status)) {
+ goto Error;
+ }
+ Status = In8 (Dev, LSI_REG_SIST1, &SIst1);
+ if (EFI_ERROR (Status)) {
+ goto Error;
+ }
+
+ if (SIst0 != 0 || SIst1 != 0) {
+ goto Error;
+ }
+
+ //
+ // Check the SIR (SCRIPTS Interrupt Instruction Received) bit.
+ //
+ if (DStat & LSI_DSTAT_SIR) {
+ break;
+ }
+
+ gBS->Stall (Dev->StallPerPollUsec);
+ }
+
+ //
+ // Check if everything is good.
+ // SCSI Message Code 0x00: COMMAND COMPLETE
+ // SCSI Status Code 0x00: Good
+ //
+ if (MsgIn[0] != 0 || *ScsiStatus != 0) {
+ goto Error;
+ }
+
+ //
+ // Fetch CSBC again to calculate the transferred bytes and update
+ // InTransferLength/OutTransferLength.
+ //
+ // Note: The number of transferred bytes is bounded by
+ // "sizeof Dev->Dma->Data", so it's safe to subtract CsbcBase
+ // from Csbc. If the CSBC register wraps around, the correct
+ // difference is ensured by the standard C modular arithmetic.
+ //
+ Status = In32 (Dev, LSI_REG_CSBC, &Csbc);
+ if (EFI_ERROR (Status)) {
+ goto Error;
+ }
+
+ Transferred = Csbc - CsbcBase;
+ if (Packet->InTransferLength > 0) {
+ if (Transferred <= Packet->InTransferLength) {
+ Packet->InTransferLength = Transferred;
+ } else {
+ goto Error;
+ }
+ } else if (Packet->OutTransferLength > 0) {
+ if (Transferred <= Packet->OutTransferLength) {
+ Packet->OutTransferLength = Transferred;
+ } else {
+ goto Error;
+ }
+ }
+
+ //
+ // Copy Data to InDataBuffer if necessary.
+ //
+ if (Packet->DataDirection == EFI_EXT_SCSI_DATA_DIRECTION_READ) {
+ CopyMem (Packet->InDataBuffer, Data, Packet->InTransferLength);
+ }
+
+ //
+ // Always set SenseDataLength to 0.
+ // The instructions of LSI53C895A don't reply sense data. Instead, it
+ // relies on the SCSI command, "REQUEST SENSE", to get sense data. We set
+ // SenseDataLength to 0 to notify ScsiDiskDxe that there is no sense data
+ // written even if this request is processed successfully, so that It will
+ // issue "REQUEST SENSE" later to retrieve sense data.
+ //
+ Packet->SenseDataLength = 0;
+ Packet->HostAdapterStatus = EFI_EXT_SCSI_STATUS_HOST_ADAPTER_OK;
+ Packet->TargetStatus = EFI_EXT_SCSI_STATUS_TARGET_GOOD;
+
+ return EFI_SUCCESS;
+
+Error:
+ DEBUG ((DEBUG_VERBOSE, "%a: dstat: %02X, sist0: %02X, sist1: %02X\n",
+ __FUNCTION__, DStat, SIst0, SIst1));
+ //
+ // Update the request packet to reflect the status.
+ //
+ if (*ScsiStatus != 0xFF) {
+ Packet->TargetStatus = *ScsiStatus;
+ } else {
+ Packet->TargetStatus = EFI_EXT_SCSI_STATUS_TARGET_TASK_ABORTED;
+ }
+
+ if (SIst0 & LSI_SIST0_PAR) {
+ Packet->HostAdapterStatus = EFI_EXT_SCSI_STATUS_HOST_ADAPTER_PARITY_ERROR;
+ } else if (SIst0 & LSI_SIST0_RST) {
+ Packet->HostAdapterStatus = EFI_EXT_SCSI_STATUS_HOST_ADAPTER_BUS_RESET;
+ } else if (SIst0 & LSI_SIST0_UDC) {
+ //
+ // The target device is disconnected unexpectedly. According to UEFI spec,
+ // this is TIMEOUT_COMMAND.
+ //
+ Packet->HostAdapterStatus = EFI_EXT_SCSI_STATUS_HOST_ADAPTER_TIMEOUT_COMMAND;
+ } else if (SIst0 & LSI_SIST0_SGE) {
+ Packet->HostAdapterStatus = EFI_EXT_SCSI_STATUS_HOST_ADAPTER_DATA_OVERRUN_UNDERRUN;
+ } else if (SIst1 & LSI_SIST1_HTH) {
+ Packet->HostAdapterStatus = EFI_EXT_SCSI_STATUS_HOST_ADAPTER_TIMEOUT;
+ } else if (SIst1 & LSI_SIST1_GEN) {
+ Packet->HostAdapterStatus = EFI_EXT_SCSI_STATUS_HOST_ADAPTER_TIMEOUT;
+ } else if (SIst1 & LSI_SIST1_STO) {
+ Packet->HostAdapterStatus = EFI_EXT_SCSI_STATUS_HOST_ADAPTER_SELECTION_TIMEOUT;
+ } else {
+ Packet->HostAdapterStatus = EFI_EXT_SCSI_STATUS_HOST_ADAPTER_OTHER;
+ }
+
+ //
+ // SenseData may be used to inspect the error. Since we don't set sense data,
+ // SenseDataLength has to be 0.
+ //
+ Packet->SenseDataLength = 0;
+
+ return EFI_DEVICE_ERROR;
+}
+
//
// The next seven functions implement EFI_EXT_SCSI_PASS_THRU_PROTOCOL
// for the LSI 53C895A SCSI Controller. Refer to UEFI Spec 2.3.1 + Errata C,
@@ -168,7 +573,7 @@ LsiScsiPassThru ( return Status;
}
- return EFI_UNSUPPORTED;
+ return LsiScsiProcessRequest (Dev, *Target, Lun, Packet);
}
EFI_STATUS
@@ -474,6 +879,7 @@ LsiScsiControllerStart ( );
Dev->MaxTarget = PcdGet8 (PcdLsiScsiMaxTargetLimit);
Dev->MaxLun = PcdGet8 (PcdLsiScsiMaxLunLimit);
+ Dev->StallPerPollUsec = PcdGet32 (PcdLsiScsiStallPerPollUsec);
Status = gBS->OpenProtocol (
ControllerHandle,
diff --git a/OvmfPkg/LsiScsiDxe/LsiScsi.h b/OvmfPkg/LsiScsiDxe/LsiScsi.h index 05deeed..6ecf523 100644 --- a/OvmfPkg/LsiScsiDxe/LsiScsi.h +++ b/OvmfPkg/LsiScsiDxe/LsiScsi.h @@ -14,6 +14,11 @@ typedef struct {
//
+ // Allocate 32 UINT32 entries for the script and it's sufficient for
+ // 16 instructions.
+ //
+ UINT32 Script[32];
+ //
// The max size of CDB is 32.
//
UINT8 Cdb[32];
@@ -25,6 +30,18 @@ typedef struct { // Count (DBC), a 24-bit register, so the maximum is 0xFFFFFF (16MB-1).
//
UINT8 Data[SIZE_64KB];
+ //
+ // For SCSI Message In phase
+ //
+ UINT8 MsgIn[2];
+ //
+ // For SCSI Message Out phase
+ //
+ UINT8 MsgOut;
+ //
+ // For SCSI Status phase
+ //
+ UINT8 Status;
} LSI_SCSI_DMA_BUFFER;
typedef struct {
@@ -34,6 +51,7 @@ typedef struct { EFI_PCI_IO_PROTOCOL *PciIo;
UINT8 MaxTarget;
UINT8 MaxLun;
+ UINT32 StallPerPollUsec;
LSI_SCSI_DMA_BUFFER *Dma;
EFI_PHYSICAL_ADDRESS DmaPhysical;
VOID *DmaMapping;
@@ -46,6 +64,9 @@ typedef struct { #define LSI_SCSI_FROM_PASS_THRU(PassThruPtr) \
CR (PassThruPtr, LSI_SCSI_DEV, PassThru, LSI_SCSI_DEV_SIGNATURE)
+#define LSI_SCSI_DMA_ADDR(Dev, MemberName) \
+ ((UINT32)(Dev->DmaPhysical + OFFSET_OF (LSI_SCSI_DMA_BUFFER, MemberName)))
+
//
// Probe, start and stop functions of this driver, called by the DXE core for
diff --git a/OvmfPkg/LsiScsiDxe/LsiScsiDxe.inf b/OvmfPkg/LsiScsiDxe/LsiScsiDxe.inf index 6111449..4c7abce 100644 --- a/OvmfPkg/LsiScsiDxe/LsiScsiDxe.inf +++ b/OvmfPkg/LsiScsiDxe/LsiScsiDxe.inf @@ -41,3 +41,6 @@ [FixedPcd]
gUefiOvmfPkgTokenSpaceGuid.PcdLsiScsiMaxTargetLimit ## CONSUMES
gUefiOvmfPkgTokenSpaceGuid.PcdLsiScsiMaxLunLimit ## CONSUMES
+
+[Pcd]
+ gUefiOvmfPkgTokenSpaceGuid.PcdLsiScsiStallPerPollUsec ## CONSUMES
diff --git a/OvmfPkg/OvmfPkg.dec b/OvmfPkg/OvmfPkg.dec index ca13a3c..f16c00a 100644 --- a/OvmfPkg/OvmfPkg.dec +++ b/OvmfPkg/OvmfPkg.dec @@ -179,6 +179,9 @@ gUefiOvmfPkgTokenSpaceGuid.PcdLsiScsiMaxTargetLimit|7|UINT8|0x3b
gUefiOvmfPkgTokenSpaceGuid.PcdLsiScsiMaxLunLimit|0|UINT8|0x3c
+ ## Microseconds to stall between polling for LsiScsi request result
+ gUefiOvmfPkgTokenSpaceGuid.PcdLsiScsiStallPerPollUsec|5|UINT32|0x3d
+
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFlashNvStorageEventLogBase|0x0|UINT32|0x8
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFlashNvStorageEventLogSize|0x0|UINT32|0x9
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFirmwareFdSize|0x0|UINT32|0xa
|