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1. Enabled SSP(StorageSecurityCommandProtocol) for ATA devices.

Browse Source 
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11614 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
hhuan13 2011-05-04 02:38:43 +00:00
parent c777fc45b5
commit c24097a59f
4 changed files with 622 additions and 13 deletions
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287
MdeModulePkg/Bus/Ata/AtaBusDxe/AtaBus.c
View File

@ -72,6 +72,10 @@ ATA_DEVICE gAtaDeviceTemplate = {
AtaDiskInfoWhichIde
},
NULL, // DevicePath
{
AtaStorageSecurityReceiveData,
AtaStorageSecuritySendData
},
NULL, // AtaBusDriverData
0, // Port
0, // PortMultiplierPort
@ -327,6 +331,23 @@ RegisterAtaDevice (
goto Done;
}
//
// See if the ata device support trust computing feature or not.
// If yes, then install Storage Security Protocol at the ata device handle.
//
if ((AtaDevice->IdentifyData->trusted_computing_support & BIT0) != 0) {
DEBUG ((EFI_D_INFO, "Found TCG support in Port %x PortMultiplierPort %x\n", Port, PortMultiplierPort));
Status = gBS->InstallProtocolInterface (
&AtaDevice->Handle,
&gEfiStorageSecurityCommandProtocolGuid,
EFI_NATIVE_INTERFACE,
&AtaDevice->StorageSecurity
);
if (EFI_ERROR (Status)) {
goto Done;
}
}
gBS->OpenProtocol (
AtaBusDriverData->Controller,
&gEfiAtaPassThruProtocolGuid,
@ -370,13 +391,15 @@ UnregisterAtaDevice (
IN EFI_HANDLE Handle
)
{
EFI_STATUS Status;
EFI_BLOCK_IO_PROTOCOL *BlockIo;
EFI_BLOCK_IO2_PROTOCOL *BlockIo2;
ATA_DEVICE *AtaDevice;
EFI_ATA_PASS_THRU_PROTOCOL *AtaPassThru;
BlockIo2 = NULL;
BlockIo = NULL;
EFI_STATUS Status;
EFI_BLOCK_IO_PROTOCOL *BlockIo;
EFI_BLOCK_IO2_PROTOCOL *BlockIo2;
ATA_DEVICE *AtaDevice;
EFI_ATA_PASS_THRU_PROTOCOL *AtaPassThru;
EFI_STORAGE_SECURITY_COMMAND_PROTOCOL *StorageSecurity;
BlockIo2 = NULL;
BlockIo = NULL;
Status = gBS->OpenProtocol (
Handle,
@ -451,6 +474,37 @@ UnregisterAtaDevice (
return Status;
}
//
// If Storage Security Command Protocol is installed, then uninstall this protocol.
//
Status = gBS->OpenProtocol (
Handle,
&gEfiStorageSecurityCommandProtocolGuid,
(VOID **) &StorageSecurity,
This->DriverBindingHandle,
Controller,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
if (!EFI_ERROR (Status)) {
Status = gBS->UninstallProtocolInterface (
Handle,
&gEfiStorageSecurityCommandProtocolGuid,
&AtaDevice->StorageSecurity
);
if (EFI_ERROR (Status)) {
gBS->OpenProtocol (
Controller,
&gEfiAtaPassThruProtocolGuid,
(VOID **) &AtaPassThru,
This->DriverBindingHandle,
Handle,
EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
);
return Status;
}
}
ReleaseAtaResources (AtaDevice);
return Status;
}
@ -1321,6 +1375,225 @@ AtaDiskInfoWhichIde (
return EFI_SUCCESS;
}
/**
Send a security protocol command to a device that receives data and/or the result
of one or more commands sent by SendData.
The ReceiveData function sends a security protocol command to the given MediaId.
The security protocol command sent is defined by SecurityProtocolId and contains
the security protocol specific data SecurityProtocolSpecificData. The function
returns the data from the security protocol command in PayloadBuffer.
For devices supporting the SCSI command set, the security protocol command is sent
using the SECURITY PROTOCOL IN command defined in SPC-4.
For devices supporting the ATA command set, the security protocol command is sent
using one of the TRUSTED RECEIVE commands defined in ATA8-ACS if PayloadBufferSize
is non-zero.
If the PayloadBufferSize is zero, the security protocol command is sent using the
Trusted Non-Data command defined in ATA8-ACS.
If PayloadBufferSize is too small to store the available data from the security
protocol command, the function shall copy PayloadBufferSize bytes into the
PayloadBuffer and return EFI_WARN_BUFFER_TOO_SMALL.
If PayloadBuffer or PayloadTransferSize is NULL and PayloadBufferSize is non-zero,
the function shall return EFI_INVALID_PARAMETER.
If the given MediaId does not support security protocol commands, the function shall
return EFI_UNSUPPORTED. If there is no media in the device, the function returns
EFI_NO_MEDIA. If the MediaId is not the ID for the current media in the device,
the function returns EFI_MEDIA_CHANGED.
If the security protocol fails to complete within the Timeout period, the function
shall return EFI_TIMEOUT.
If the security protocol command completes without an error, the function shall
return EFI_SUCCESS. If the security protocol command completes with an error, the
function shall return EFI_DEVICE_ERROR.
@param This Indicates a pointer to the calling context.
@param MediaId ID of the medium to receive data from.
@param Timeout The timeout, in 100ns units, to use for the execution
of the security protocol command. A Timeout value of 0
means that this function will wait indefinitely for the
security protocol command to execute. If Timeout is greater
than zero, then this function will return EFI_TIMEOUT
if the time required to execute the receive data command
is greater than Timeout.
@param SecurityProtocolId The value of the "Security Protocol" parameter of
the security protocol command to be sent.
@param SecurityProtocolSpecificData The value of the "Security Protocol Specific" parameter
of the security protocol command to be sent.
@param PayloadBufferSize Size in bytes of the payload data buffer.
@param PayloadBuffer A pointer to a destination buffer to store the security
protocol command specific payload data for the security
protocol command. The caller is responsible for having
either implicit or explicit ownership of the buffer.
@param PayloadTransferSize A pointer to a buffer to store the size in bytes of the
data written to the payload data buffer.
@retval EFI_SUCCESS The security protocol command completed successfully.
@retval EFI_WARN_BUFFER_TOO_SMALL The PayloadBufferSize was too small to store the available
data from the device. The PayloadBuffer contains the truncated data.
@retval EFI_UNSUPPORTED The given MediaId does not support security protocol commands.
@retval EFI_DEVICE_ERROR The security protocol command completed with an error.
@retval EFI_NO_MEDIA There is no media in the device.
@retval EFI_MEDIA_CHANGED The MediaId is not for the current media.
@retval EFI_INVALID_PARAMETER The PayloadBuffer or PayloadTransferSize is NULL and
PayloadBufferSize is non-zero.
@retval EFI_TIMEOUT A timeout occurred while waiting for the security
protocol command to execute.
**/
EFI_STATUS
EFIAPI
AtaStorageSecurityReceiveData (
IN EFI_STORAGE_SECURITY_COMMAND_PROTOCOL *This,
IN UINT32 MediaId,
IN UINT64 Timeout,
IN UINT8 SecurityProtocolId,
IN UINT16 SecurityProtocolSpecificData,
IN UINTN PayloadBufferSize,
OUT VOID *PayloadBuffer,
OUT UINTN *PayloadTransferSize
)
{
EFI_STATUS Status;
ATA_DEVICE *Private;
DEBUG ((EFI_D_INFO, "EFI Storage Security Protocol - Read"));
if ((PayloadBuffer == NULL || PayloadTransferSize == NULL) && PayloadBufferSize != 0) {
return EFI_INVALID_PARAMETER;
}
Status = EFI_SUCCESS;
Private = ATA_DEVICE_FROM_STORAGE_SECURITY (This);
if (MediaId != Private->BlockIo.Media->MediaId) {
return EFI_MEDIA_CHANGED;
}
if (!Private->BlockIo.Media->MediaPresent) {
return EFI_NO_MEDIA;
}
Status = TrustTransferAtaDevice (
Private,
PayloadBuffer,
SecurityProtocolId,
SecurityProtocolSpecificData,
PayloadBufferSize,
FALSE,
Timeout,
PayloadTransferSize
);
return Status;
}
/**
Send a security protocol command to a device.
The SendData function sends a security protocol command containing the payload
PayloadBuffer to the given MediaId. The security protocol command sent is
defined by SecurityProtocolId and contains the security protocol specific data
SecurityProtocolSpecificData. If the underlying protocol command requires a
specific padding for the command payload, the SendData function shall add padding
bytes to the command payload to satisfy the padding requirements.
For devices supporting the SCSI command set, the security protocol command is sent
using the SECURITY PROTOCOL OUT command defined in SPC-4.
For devices supporting the ATA command set, the security protocol command is sent
using one of the TRUSTED SEND commands defined in ATA8-ACS if PayloadBufferSize
is non-zero. If the PayloadBufferSize is zero, the security protocol command is
sent using the Trusted Non-Data command defined in ATA8-ACS.
If PayloadBuffer is NULL and PayloadBufferSize is non-zero, the function shall
return EFI_INVALID_PARAMETER.
If the given MediaId does not support security protocol commands, the function
shall return EFI_UNSUPPORTED. If there is no media in the device, the function
returns EFI_NO_MEDIA. If the MediaId is not the ID for the current media in the
device, the function returns EFI_MEDIA_CHANGED.
If the security protocol fails to complete within the Timeout period, the function
shall return EFI_TIMEOUT.
If the security protocol command completes without an error, the function shall return
EFI_SUCCESS. If the security protocol command completes with an error, the function
shall return EFI_DEVICE_ERROR.
@param This Indicates a pointer to the calling context.
@param MediaId ID of the medium to receive data from.
@param Timeout The timeout, in 100ns units, to use for the execution
of the security protocol command. A Timeout value of 0
means that this function will wait indefinitely for the
security protocol command to execute. If Timeout is greater
than zero, then this function will return EFI_TIMEOUT
if the time required to execute the receive data command
is greater than Timeout.
@param SecurityProtocolId The value of the "Security Protocol" parameter of
the security protocol command to be sent.
@param SecurityProtocolSpecificData The value of the "Security Protocol Specific" parameter
of the security protocol command to be sent.
@param PayloadBufferSize Size in bytes of the payload data buffer.
@param PayloadBuffer A pointer to a destination buffer to store the security
protocol command specific payload data for the security
protocol command.
@retval EFI_SUCCESS The security protocol command completed successfully.
@retval EFI_UNSUPPORTED The given MediaId does not support security protocol commands.
@retval EFI_DEVICE_ERROR The security protocol command completed with an error.
@retval EFI_NO_MEDIA There is no media in the device.
@retval EFI_MEDIA_CHANGED The MediaId is not for the current media.
@retval EFI_INVALID_PARAMETER The PayloadBuffer is NULL and PayloadBufferSize is non-zero.
@retval EFI_TIMEOUT A timeout occurred while waiting for the security
protocol command to execute.
**/
EFI_STATUS
EFIAPI
AtaStorageSecuritySendData (
IN EFI_STORAGE_SECURITY_COMMAND_PROTOCOL *This,
IN UINT32 MediaId,
IN UINT64 Timeout,
IN UINT8 SecurityProtocolId,
IN UINT16 SecurityProtocolSpecificData,
IN UINTN PayloadBufferSize,
IN VOID *PayloadBuffer
)
{
EFI_STATUS Status;
ATA_DEVICE *Private;
DEBUG ((EFI_D_INFO, "EFI Storage Security Protocol - Send"));
if ((PayloadBuffer == NULL) && (PayloadBufferSize != 0)) {
return EFI_INVALID_PARAMETER;
}
Status = EFI_SUCCESS;
Private = ATA_DEVICE_FROM_STORAGE_SECURITY (This);
if (MediaId != Private->BlockIo.Media->MediaId) {
return EFI_MEDIA_CHANGED;
}
Status = TrustTransferAtaDevice (
Private,
PayloadBuffer,
SecurityProtocolId,
SecurityProtocolSpecificData,
PayloadBufferSize,
TRUE,
Timeout,
NULL
);
return Status;
}
/**
The user Entry Point for module AtaBus. The user code starts with this function.

208
MdeModulePkg/Bus/Ata/AtaBusDxe/AtaBus.h
View File

@ -25,6 +25,7 @@
#include <Protocol/BlockIo2.h>
#include <Protocol/DiskInfo.h>
#include <Protocol/DevicePath.h>
#include <Protocol/StorageSecurityCommand.h>
#include <Library/DebugLib.h>
#include <Library/UefiDriverEntryPoint.h>
@ -75,10 +76,10 @@
//
#define MAX_MODEL_NAME_LEN 40
#define ATA_TASK_SIGNATURE SIGNATURE_32 ('A', 'T', 'S', 'K')
#define ATA_DEVICE_SIGNATURE SIGNATURE_32 ('A', 'B', 'I', 'D')
#define ATA_TASK_SIGNATURE SIGNATURE_32 ('A', 'T', 'S', 'K')
#define ATA_DEVICE_SIGNATURE SIGNATURE_32 ('A', 'B', 'I', 'D')
#define IS_ALIGNED(addr, size) (((UINTN) (addr) & (size - 1)) == 0)
#define IS_ALIGNED(addr, size) (((UINTN) (addr) & (size - 1)) == 0)
//
// Task for the non blocking I/O
@ -114,6 +115,7 @@ typedef struct {
EFI_BLOCK_IO_MEDIA BlockMedia;
EFI_DISK_INFO_PROTOCOL DiskInfo;
EFI_DEVICE_PATH_PROTOCOL *DevicePath;
EFI_STORAGE_SECURITY_COMMAND_PROTOCOL StorageSecurity;
ATA_BUS_DRIVER_DATA *AtaBusDriverData;
UINT16 Port;
@ -137,12 +139,13 @@ typedef struct {
EFI_UNICODE_STRING_TABLE *ControllerNameTable;
CHAR16 ModelName[MAX_MODEL_NAME_LEN + 1];
LIST_ENTRY AtaTaskList;
LIST_ENTRY AtaTaskList;
} ATA_DEVICE;
#define ATA_DEVICE_FROM_BLOCK_IO(a) CR (a, ATA_DEVICE, BlockIo, ATA_DEVICE_SIGNATURE)
#define ATA_DEVICE_FROM_BLOCK_IO2(a) CR (a, ATA_DEVICE, BlockIo2, ATA_DEVICE_SIGNATURE)
#define ATA_DEVICE_FROM_DISK_INFO(a) CR (a, ATA_DEVICE, DiskInfo, ATA_DEVICE_SIGNATURE)
#define ATA_DEVICE_FROM_STORAGE_SECURITY(a) CR (a, ATA_DEVICE, StorageSecurity, ATA_DEVICE_SIGNATURE)
#define ATA_AYNS_TASK_FROM_ENTRY(a) CR (a, ATA_BUS_ASYN_TASK, TaskEntry, ATA_TASK_SIGNATURE)
//
@ -262,6 +265,45 @@ AccessAtaDevice(
IN BOOLEAN IsWrite,
IN OUT EFI_BLOCK_IO2_TOKEN *Token
);
/**
Trust transfer data from/to ATA device.
This function performs one ATA pass through transaction to do a trust transfer from/to
ATA device. It chooses the appropriate ATA command and protocol to invoke PassThru
interface of ATA pass through.
@param AtaDevice The ATA child device involved for the operation.
@param Buffer The pointer to the current transaction buffer.
@param SecurityProtocolId The value of the "Security Protocol" parameter of
the security protocol command to be sent.
@param SecurityProtocolSpecificData The value of the "Security Protocol Specific" parameter
of the security protocol command to be sent.
@param TransferLength The block number or sector count of the transfer.
@param IsTrustSend Indicates whether it is a trust send operation or not.
@param Timeout The timeout, in 100ns units, to use for the execution
of the security protocol command. A Timeout value of 0
means that this function will wait indefinitely for the
security protocol command to execute. If Timeout is greater
than zero, then this function will return EFI_TIMEOUT
if the time required to execute the receive data command
is greater than Timeout.
@retval EFI_SUCCESS The data transfer is complete successfully.
@return others Some error occurs when transferring data.
**/
EFI_STATUS
EFIAPI
TrustTransferAtaDevice (
IN OUT ATA_DEVICE *AtaDevice,
IN OUT VOID *Buffer,
IN UINT8 SecurityProtocolId,
IN UINT16 SecurityProtocolSpecificData,
IN UINTN TransferLength,
IN BOOLEAN IsTrustSend,
IN UINT64 Timeout,
OUT UINTN *TransferLengthOut
);
//
// Protocol interface prototypes
@ -822,4 +864,162 @@ AtaDiskInfoWhichIde (
OUT UINT32 *IdeDevice
);
/**
Send a security protocol command to a device that receives data and/or the result
of one or more commands sent by SendData.
The ReceiveData function sends a security protocol command to the given MediaId.
The security protocol command sent is defined by SecurityProtocolId and contains
the security protocol specific data SecurityProtocolSpecificData. The function
returns the data from the security protocol command in PayloadBuffer.
For devices supporting the SCSI command set, the security protocol command is sent
using the SECURITY PROTOCOL IN command defined in SPC-4.
For devices supporting the ATA command set, the security protocol command is sent
using one of the TRUSTED RECEIVE commands defined in ATA8-ACS if PayloadBufferSize
is non-zero.
If the PayloadBufferSize is zero, the security protocol command is sent using the
Trusted Non-Data command defined in ATA8-ACS.
If PayloadBufferSize is too small to store the available data from the security
protocol command, the function shall copy PayloadBufferSize bytes into the
PayloadBuffer and return EFI_WARN_BUFFER_TOO_SMALL.
If PayloadBuffer or PayloadTransferSize is NULL and PayloadBufferSize is non-zero,
the function shall return EFI_INVALID_PARAMETER.
If the given MediaId does not support security protocol commands, the function shall
return EFI_UNSUPPORTED. If there is no media in the device, the function returns
EFI_NO_MEDIA. If the MediaId is not the ID for the current media in the device,
the function returns EFI_MEDIA_CHANGED.
If the security protocol fails to complete within the Timeout period, the function
shall return EFI_TIMEOUT.
If the security protocol command completes without an error, the function shall
return EFI_SUCCESS. If the security protocol command completes with an error, the
function shall return EFI_DEVICE_ERROR.
@param This Indicates a pointer to the calling context.
@param MediaId ID of the medium to receive data from.
@param Timeout The timeout, in 100ns units, to use for the execution
of the security protocol command. A Timeout value of 0
means that this function will wait indefinitely for the
security protocol command to execute. If Timeout is greater
than zero, then this function will return EFI_TIMEOUT
if the time required to execute the receive data command
is greater than Timeout.
@param SecurityProtocolId The value of the "Security Protocol" parameter of
the security protocol command to be sent.
@param SecurityProtocolSpecificData The value of the "Security Protocol Specific" parameter
of the security protocol command to be sent.
@param PayloadBufferSize Size in bytes of the payload data buffer.
@param PayloadBuffer A pointer to a destination buffer to store the security
protocol command specific payload data for the security
protocol command. The caller is responsible for having
either implicit or explicit ownership of the buffer.
@param PayloadTransferSize A pointer to a buffer to store the size in bytes of the
data written to the payload data buffer.
@retval EFI_SUCCESS The security protocol command completed successfully.
@retval EFI_WARN_BUFFER_TOO_SMALL The PayloadBufferSize was too small to store the available
data from the device. The PayloadBuffer contains the truncated data.
@retval EFI_UNSUPPORTED The given MediaId does not support security protocol commands.
@retval EFI_DEVICE_ERROR The security protocol command completed with an error.
@retval EFI_NO_MEDIA There is no media in the device.
@retval EFI_MEDIA_CHANGED The MediaId is not for the current media.
@retval EFI_INVALID_PARAMETER The PayloadBuffer or PayloadTransferSize is NULL and
PayloadBufferSize is non-zero.
@retval EFI_TIMEOUT A timeout occurred while waiting for the security
protocol command to execute.
**/
EFI_STATUS
EFIAPI
AtaStorageSecurityReceiveData (
IN EFI_STORAGE_SECURITY_COMMAND_PROTOCOL *This,
IN UINT32 MediaId,
IN UINT64 Timeout,
IN UINT8 SecurityProtocolId,
IN UINT16 SecurityProtocolSpecificData,
IN UINTN PayloadBufferSize,
OUT VOID *PayloadBuffer,
OUT UINTN *PayloadTransferSize
);
/**
Send a security protocol command to a device.
The SendData function sends a security protocol command containing the payload
PayloadBuffer to the given MediaId. The security protocol command sent is
defined by SecurityProtocolId and contains the security protocol specific data
SecurityProtocolSpecificData. If the underlying protocol command requires a
specific padding for the command payload, the SendData function shall add padding
bytes to the command payload to satisfy the padding requirements.
For devices supporting the SCSI command set, the security protocol command is sent
using the SECURITY PROTOCOL OUT command defined in SPC-4.
For devices supporting the ATA command set, the security protocol command is sent
using one of the TRUSTED SEND commands defined in ATA8-ACS if PayloadBufferSize
is non-zero. If the PayloadBufferSize is zero, the security protocol command is
sent using the Trusted Non-Data command defined in ATA8-ACS.
If PayloadBuffer is NULL and PayloadBufferSize is non-zero, the function shall
return EFI_INVALID_PARAMETER.
If the given MediaId does not support security protocol commands, the function
shall return EFI_UNSUPPORTED. If there is no media in the device, the function
returns EFI_NO_MEDIA. If the MediaId is not the ID for the current media in the
device, the function returns EFI_MEDIA_CHANGED.
If the security protocol fails to complete within the Timeout period, the function
shall return EFI_TIMEOUT.
If the security protocol command completes without an error, the function shall return
EFI_SUCCESS. If the security protocol command completes with an error, the function
shall return EFI_DEVICE_ERROR.
@param This Indicates a pointer to the calling context.
@param MediaId ID of the medium to receive data from.
@param Timeout The timeout, in 100ns units, to use for the execution
of the security protocol command. A Timeout value of 0
means that this function will wait indefinitely for the
security protocol command to execute. If Timeout is greater
than zero, then this function will return EFI_TIMEOUT
if the time required to execute the receive data command
is greater than Timeout.
@param SecurityProtocolId The value of the "Security Protocol" parameter of
the security protocol command to be sent.
@param SecurityProtocolSpecificData The value of the "Security Protocol Specific" parameter
of the security protocol command to be sent.
@param PayloadBufferSize Size in bytes of the payload data buffer.
@param PayloadBuffer A pointer to a destination buffer to store the security
protocol command specific payload data for the security
protocol command.
@retval EFI_SUCCESS The security protocol command completed successfully.
@retval EFI_UNSUPPORTED The given MediaId does not support security protocol commands.
@retval EFI_DEVICE_ERROR The security protocol command completed with an error.
@retval EFI_NO_MEDIA There is no media in the device.
@retval EFI_MEDIA_CHANGED The MediaId is not for the current media.
@retval EFI_INVALID_PARAMETER The PayloadBuffer is NULL and PayloadBufferSize is non-zero.
@retval EFI_TIMEOUT A timeout occurred while waiting for the security
protocol command to execute.
**/
EFI_STATUS
EFIAPI
AtaStorageSecuritySendData (
IN EFI_STORAGE_SECURITY_COMMAND_PROTOCOL *This,
IN UINT32 MediaId,
IN UINT64 Timeout,
IN UINT8 SecurityProtocolId,
IN UINT16 SecurityProtocolSpecificData,
IN UINTN PayloadBufferSize,
IN VOID *PayloadBuffer
);
#endif

2
MdeModulePkg/Bus/Ata/AtaBusDxe/AtaBusDxe.inf
View File

@ -66,6 +66,6 @@
gEfiBlockIo2ProtocolGuid # BY_START
gEfiAtaPassThruProtocolGuid # TO_START
gEfiDevicePathProtocolGuid # TO_START
gEfiStorageSecurityCommandProtocolGuid # BY_START

138
MdeModulePkg/Bus/Ata/AtaBusDxe/AtaPassThruExecute.c
View File

@ -3,7 +3,12 @@
This file implements the low level execution of ATA pass through transaction.
It transforms the high level identity, read/write, reset command to ATA pass
through command and protocol.
through command and protocol.
NOTE: This file aslo implements the StorageSecurityCommandProtocol(SSP). For input
parameter SecurityProtocolSpecificData, ATA spec has no explicitly definition
for Security Protocol Specific layout. This implementation uses big edian for
Cylinder register.
Copyright (c) 2009 - 2011, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
@ -19,6 +24,12 @@
#include "AtaBus.h"
#define ATA_CMD_TRUST_NON_DATA 0x5B
#define ATA_CMD_TRUST_RECEIVE 0x5C
#define ATA_CMD_TRUST_RECEIVE_DMA 0x5D
#define ATA_CMD_TRUST_SEND 0x5E
#define ATA_CMD_TRUST_SEND_DMA 0x5F
//
// Look up table (UdmaValid, IsWrite) for EFI_ATA_PASS_THRU_CMD_PROTOCOL
//
@ -59,6 +70,21 @@ UINT8 mAtaCommands[][2][2] = {
}
};
//
// Look up table (UdmaValid, IsTrustSend) for ATA_CMD
//
UINT8 mAtaTrustCommands[2][2] = {
{
ATA_CMD_TRUST_RECEIVE, // PIO read
ATA_CMD_TRUST_SEND // PIO write
},
{
ATA_CMD_TRUST_RECEIVE_DMA, // DMA read
ATA_CMD_TRUST_SEND_DMA // DMA write
}
};
//
// Look up table (Lba48Bit) for maximum transfer block number
//
@ -756,3 +782,113 @@ EXIT:
return Status;
}
/**
Trust transfer data from/to ATA device.
This function performs one ATA pass through transaction to do a trust transfer from/to
ATA device. It chooses the appropriate ATA command and protocol to invoke PassThru
interface of ATA pass through.
@param AtaDevice The ATA child device involved for the operation.
@param Buffer The pointer to the current transaction buffer.
@param SecurityProtocolId The value of the "Security Protocol" parameter of
the security protocol command to be sent.
@param SecurityProtocolSpecificData The value of the "Security Protocol Specific" parameter
of the security protocol command to be sent.
@param TransferLength The block number or sector count of the transfer.
@param IsTrustSend Indicates whether it is a trust send operation or not.
@param Timeout The timeout, in 100ns units, to use for the execution
of the security protocol command. A Timeout value of 0
means that this function will wait indefinitely for the
security protocol command to execute. If Timeout is greater
than zero, then this function will return EFI_TIMEOUT
if the time required to execute the receive data command
is greater than Timeout.
@retval EFI_SUCCESS The data transfer is complete successfully.
@return others Some error occurs when transferring data.
**/
EFI_STATUS
EFIAPI
TrustTransferAtaDevice (
IN OUT ATA_DEVICE *AtaDevice,
IN OUT VOID *Buffer,
IN UINT8 SecurityProtocolId,
IN UINT16 SecurityProtocolSpecificData,
IN UINTN TransferLength,
IN BOOLEAN IsTrustSend,
IN UINT64 Timeout,
OUT UINTN *TransferLengthOut
)
{
EFI_ATA_COMMAND_BLOCK *Acb;
EFI_ATA_PASS_THRU_COMMAND_PACKET *Packet;
EFI_STATUS Status;
VOID *NewBuffer;
EFI_ATA_PASS_THRU_PROTOCOL *AtaPassThru;
//
// Ensure AtaDevice->UdmaValid and IsTrustSend are valid boolean values
//
ASSERT ((UINTN) AtaDevice->UdmaValid < 2);
ASSERT ((UINTN) IsTrustSend < 2);
//
// Prepare for ATA command block.
//
Acb = ZeroMem (&AtaDevice->Acb, sizeof (*Acb));
if (TransferLength == 0) {
Acb->AtaCommand = ATA_CMD_TRUST_NON_DATA;
} else {
Acb->AtaCommand = mAtaTrustCommands[AtaDevice->UdmaValid][IsTrustSend];
}
Acb->AtaFeatures = SecurityProtocolId;
Acb->AtaSectorCount = (UINT8) (TransferLength / 512);
Acb->AtaSectorNumber = (UINT8) ((TransferLength / 512) >> 8);
//
// NOTE: ATA Spec has no explicitly definition for Security Protocol Specific layout.
// Here use big edian for Cylinder register.
//
Acb->AtaCylinderHigh = (UINT8) SecurityProtocolSpecificData;
Acb->AtaCylinderLow = (UINT8) (SecurityProtocolSpecificData >> 8);
Acb->AtaDeviceHead = (UINT8) (BIT7 | BIT6 | BIT5 | (AtaDevice->PortMultiplierPort << 4));
//
// Prepare for ATA pass through packet.
//
Packet = ZeroMem (&AtaDevice->Packet, sizeof (*Packet));
if (TransferLength == 0) {
Packet->InTransferLength = 0;
Packet->OutTransferLength = 0;
Packet->Protocol = EFI_ATA_PASS_THRU_PROTOCOL_ATA_NON_DATA;
} else if (IsTrustSend) {
//
// Check the alignment of the incoming buffer prior to invoking underlying ATA PassThru
//
AtaPassThru = AtaDevice->AtaBusDriverData->AtaPassThru;
if ((AtaPassThru->Mode->IoAlign > 1) && !IS_ALIGNED (Buffer, AtaPassThru->Mode->IoAlign)) {
NewBuffer = AllocateAlignedBuffer (AtaDevice, TransferLength);
CopyMem (NewBuffer, Buffer, TransferLength);
FreePool (Buffer);
Buffer = NewBuffer;
}
Packet->OutDataBuffer = Buffer;
Packet->OutTransferLength = (UINT32) TransferLength;
Packet->Protocol = mAtaPassThruCmdProtocols[AtaDevice->UdmaValid][IsTrustSend];
} else {
Packet->InDataBuffer = Buffer;
Packet->InTransferLength = (UINT32) TransferLength;
Packet->Protocol = mAtaPassThruCmdProtocols[AtaDevice->UdmaValid][IsTrustSend];
}
Packet->Length = EFI_ATA_PASS_THRU_LENGTH_BYTES;
Packet->Timeout = Timeout;
Status = AtaDevicePassThru (AtaDevice, NULL, NULL);
if (TransferLengthOut != NULL) {
if (! IsTrustSend) {
*TransferLengthOut = Packet->InTransferLength;
}
}
return Status;
}