* [PATCH v1 0/2] Add PEI BlockIO support for ATA AHCI mode devices
@ 2019-04-02 5:15 Hao Wu
2019-04-02 5:15 ` [PATCH v1 1/2] MdeModulePkg/AhciPei: Limit max transfer blocknum for 48-bit address Hao Wu
2019-04-02 5:15 ` [PATCH v1 2/2] MdeModulePkg/AhciPei: Add PEI BlockIO support Hao Wu
0 siblings, 2 replies; 3+ messages in thread
From: Hao Wu @ 2019-04-02 5:15 UTC (permalink / raw)
To: edk2-devel; +Cc: Hao Wu, Ray Ni, Eric Dong, Jian J Wang
The series is also available at:
https://github.com/hwu25/edk2/tree/ahci_pei_blockio_v1
The series will add the PEI BlockIO support for ATA AHCI mode devices.
Cc: Ray Ni <ray.ni@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Jian J Wang <jian.j.wang@intel.com>
Hao Wu (2):
MdeModulePkg/AhciPei: Limit max transfer blocknum for 48-bit address
MdeModulePkg/AhciPei: Add PEI BlockIO support
MdeModulePkg/Bus/Ata/AhciPei/AhciPei.inf | 4 +
MdeModulePkg/Bus/Ata/AhciPei/AhciPei.h | 30 ++
MdeModulePkg/Bus/Ata/AhciPei/AhciPeiBlockIo.h | 264 ++++++++++
MdeModulePkg/Bus/Ata/AhciPei/AhciMode.c | 125 ++++-
MdeModulePkg/Bus/Ata/AhciPei/AhciPei.c | 35 +-
MdeModulePkg/Bus/Ata/AhciPei/AhciPeiBlockIo.c | 533 ++++++++++++++++++++
6 files changed, 989 insertions(+), 2 deletions(-)
create mode 100644 MdeModulePkg/Bus/Ata/AhciPei/AhciPeiBlockIo.h
create mode 100644 MdeModulePkg/Bus/Ata/AhciPei/AhciPeiBlockIo.c
--
2.12.0.windows.1
^ permalink raw reply [flat|nested] 3+ messages in thread
* [PATCH v1 1/2] MdeModulePkg/AhciPei: Limit max transfer blocknum for 48-bit address
2019-04-02 5:15 [PATCH v1 0/2] Add PEI BlockIO support for ATA AHCI mode devices Hao Wu
@ 2019-04-02 5:15 ` Hao Wu
2019-04-02 5:15 ` [PATCH v1 2/2] MdeModulePkg/AhciPei: Add PEI BlockIO support Hao Wu
1 sibling, 0 replies; 3+ messages in thread
From: Hao Wu @ 2019-04-02 5:15 UTC (permalink / raw)
To: edk2-devel; +Cc: Hao Wu, Ray Ni, Eric Dong, Jian J Wang
REF:https://bugzilla.tianocore.org/show_bug.cgi?id=1483
Due to the limited resource on the VTd DMA buffer size in the PEI phase,
the driver will limit the maximum transfer block number for 48-bit
addressing.
This commit aims to prevent the potential failure on calls to the IOMMU
'Map' service.
Cc: Ray Ni <ray.ni@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Jian J Wang <jian.j.wang@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
---
MdeModulePkg/Bus/Ata/AhciPei/AhciMode.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/MdeModulePkg/Bus/Ata/AhciPei/AhciMode.c b/MdeModulePkg/Bus/Ata/AhciPei/AhciMode.c
index 54df31906f..939c5dbf4e 100644
--- a/MdeModulePkg/Bus/Ata/AhciPei/AhciMode.c
+++ b/MdeModulePkg/Bus/Ata/AhciPei/AhciMode.c
@@ -55,7 +55,12 @@ UINT8 mAtaTrustCommands[2] = {
// Look up table (Lba48Bit) for maximum transfer block number
//
#define MAX_28BIT_TRANSFER_BLOCK_NUM 0x100
-#define MAX_48BIT_TRANSFER_BLOCK_NUM 0xFFFF
+//
+// Due to limited resource on VTd PEI DMA buffer size, driver limits the
+// maximum transfer block number for 48-bit addressing.
+// Setting to 0x800 here means 1M bytes for device with 512-byte block size.
+//
+#define MAX_48BIT_TRANSFER_BLOCK_NUM 0x800
UINT32 mMaxTransferBlockNumber[2] = {
MAX_28BIT_TRANSFER_BLOCK_NUM,
--
2.12.0.windows.1
^ permalink raw reply related [flat|nested] 3+ messages in thread
* [PATCH v1 2/2] MdeModulePkg/AhciPei: Add PEI BlockIO support
2019-04-02 5:15 [PATCH v1 0/2] Add PEI BlockIO support for ATA AHCI mode devices Hao Wu
2019-04-02 5:15 ` [PATCH v1 1/2] MdeModulePkg/AhciPei: Limit max transfer blocknum for 48-bit address Hao Wu
@ 2019-04-02 5:15 ` Hao Wu
1 sibling, 0 replies; 3+ messages in thread
From: Hao Wu @ 2019-04-02 5:15 UTC (permalink / raw)
To: edk2-devel; +Cc: Hao Wu, Ray Ni, Eric Dong, Jian J Wang
REF:https://bugzilla.tianocore.org/show_bug.cgi?id=1483
This commit will add the PEI BlockIO (2) PPIs support for AHCI mode ATA
devices.
More specifically, the driver will consume the ATA AHCI host controller
PPI for ATA controllers working under AHCI code within the system. And
then produces the below additional PPIs for each controller:
EFI PEI Recovery Block IO PPI
EFI PEI Recovery Block IO2 PPI
Cc: Ray Ni <ray.ni@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Jian J Wang <jian.j.wang@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
---
MdeModulePkg/Bus/Ata/AhciPei/AhciPei.inf | 4 +
MdeModulePkg/Bus/Ata/AhciPei/AhciPei.h | 30 ++
MdeModulePkg/Bus/Ata/AhciPei/AhciPeiBlockIo.h | 264 ++++++++++
MdeModulePkg/Bus/Ata/AhciPei/AhciMode.c | 118 +++++
MdeModulePkg/Bus/Ata/AhciPei/AhciPei.c | 35 +-
MdeModulePkg/Bus/Ata/AhciPei/AhciPeiBlockIo.c | 533 ++++++++++++++++++++
6 files changed, 983 insertions(+), 1 deletion(-)
diff --git a/MdeModulePkg/Bus/Ata/AhciPei/AhciPei.inf b/MdeModulePkg/Bus/Ata/AhciPei/AhciPei.inf
index e02d2272fb..00f29a6b71 100644
--- a/MdeModulePkg/Bus/Ata/AhciPei/AhciPei.inf
+++ b/MdeModulePkg/Bus/Ata/AhciPei/AhciPei.inf
@@ -32,6 +32,8 @@
[Sources]
AhciPei.c
AhciPei.h
+ AhciPeiBlockIo.c
+ AhciPeiBlockIo.h
AhciPeiPassThru.c
AhciPeiPassThru.h
AhciPeiS3.c
@@ -60,6 +62,8 @@
gEdkiiIoMmuPpiGuid ## CONSUMES
gEfiEndOfPeiSignalPpiGuid ## CONSUMES
gEdkiiPeiAtaPassThruPpiGuid ## SOMETIMES_PRODUCES
+ gEfiPeiVirtualBlockIoPpiGuid ## SOMETIMES_PRODUCES
+ gEfiPeiVirtualBlockIo2PpiGuid ## SOMETIMES_PRODUCES
gEdkiiPeiStorageSecurityCommandPpiGuid ## SOMETIMES_PRODUCES
[Guids]
diff --git a/MdeModulePkg/Bus/Ata/AhciPei/AhciPei.h b/MdeModulePkg/Bus/Ata/AhciPei/AhciPei.h
index b2c586de54..e544de5f16 100644
--- a/MdeModulePkg/Bus/Ata/AhciPei/AhciPei.h
+++ b/MdeModulePkg/Bus/Ata/AhciPei/AhciPei.h
@@ -26,6 +26,7 @@
#include <Ppi/IoMmu.h>
#include <Ppi/EndOfPeiPhase.h>
#include <Ppi/AtaPassThru.h>
+#include <Ppi/BlockIo.h>
#include <Ppi/BlockIo2.h>
#include <Ppi/StorageSecurityCommand.h>
@@ -42,6 +43,7 @@
typedef struct _PEI_AHCI_CONTROLLER_PRIVATE_DATA PEI_AHCI_CONTROLLER_PRIVATE_DATA;
#include "AhciPeiPassThru.h"
+#include "AhciPeiBlockIo.h"
#include "AhciPeiStorageSecurity.h"
//
@@ -319,6 +321,8 @@ struct _PEI_AHCI_CONTROLLER_PRIVATE_DATA {
EFI_ATA_PASS_THRU_MODE AtaPassThruMode;
EDKII_PEI_ATA_PASS_THRU_PPI AtaPassThruPpi;
+ EFI_PEI_RECOVERY_BLOCK_IO_PPI BlkIoPpi;
+ EFI_PEI_RECOVERY_BLOCK_IO2_PPI BlkIo2Ppi;
EDKII_PEI_STORAGE_SECURITY_CMD_PPI StorageSecurityPpi;
EFI_PEI_PPI_DESCRIPTOR AtaPassThruPpiList;
EFI_PEI_PPI_DESCRIPTOR BlkIoPpiList;
@@ -561,6 +565,32 @@ AhciModeInitialization (
);
/**
+ Transfer data from ATA device.
+
+ This function performs one ATA pass through transaction to transfer data from/to
+ ATA device. It chooses the appropriate ATA command and protocol to invoke PassThru
+ interface of ATA pass through.
+
+ @param[in] DeviceData A pointer to PEI_AHCI_ATA_DEVICE_DATA structure.
+ @param[in,out] Buffer The pointer to the current transaction buffer.
+ @param[in] StartLba The starting logical block address to be accessed.
+ @param[in] TransferLength The block number or sector count of the transfer.
+ @param[in] IsWrite Indicates whether it is a write operation.
+
+ @retval EFI_SUCCESS The data transfer is complete successfully.
+ @return others Some error occurs when transferring data.
+
+**/
+EFI_STATUS
+TransferAtaDevice (
+ IN PEI_AHCI_ATA_DEVICE_DATA *DeviceData,
+ IN OUT VOID *Buffer,
+ IN EFI_LBA StartLba,
+ IN UINT32 TransferLength,
+ IN BOOLEAN IsWrite
+ );
+
+/**
Trust transfer data from/to ATA device.
This function performs one ATA pass through transaction to do a trust transfer
diff --git a/MdeModulePkg/Bus/Ata/AhciPei/AhciPeiBlockIo.h b/MdeModulePkg/Bus/Ata/AhciPei/AhciPeiBlockIo.h
new file mode 100644
index 0000000000..c30c202111
--- /dev/null
+++ b/MdeModulePkg/Bus/Ata/AhciPei/AhciPeiBlockIo.h
@@ -0,0 +1,264 @@
+/** @file
+ The AhciPei driver is used to manage ATA hard disk device working under AHCI
+ mode at PEI phase.
+
+ Copyright (c) 2019, 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.
+
+**/
+
+#ifndef _AHCI_PEI_BLOCKIO_H_
+#define _AHCI_PEI_BLOCKIO_H_
+
+//
+// ATA hard disk device for EFI_PEI_BLOCK_DEVICE_TYPE
+//
+#define EDKII_PEI_BLOCK_DEVICE_TYPE_ATA_HARD_DISK 8
+
+/**
+ Gets the count of block I/O devices that one specific block driver detects.
+
+ This function is used for getting the count of block I/O devices that one
+ specific block driver detects. If no device is detected, then the function
+ will return zero.
+
+ @param[in] PeiServices General-purpose services that are available
+ to every PEIM.
+ @param[in] This Indicates the EFI_PEI_RECOVERY_BLOCK_IO_PPI
+ instance.
+ @param[out] NumberBlockDevices The number of block I/O devices discovered.
+
+ @retval EFI_SUCCESS The operation performed successfully.
+
+**/
+EFI_STATUS
+EFIAPI
+AhciBlockIoGetDeviceNo (
+ IN EFI_PEI_SERVICES **PeiServices,
+ IN EFI_PEI_RECOVERY_BLOCK_IO_PPI *This,
+ OUT UINTN *NumberBlockDevices
+ );
+
+/**
+ Gets a block device's media information.
+
+ This function will provide the caller with the specified block device's media
+ information. If the media changes, calling this function will update the media
+ information accordingly.
+
+ @param[in] PeiServices General-purpose services that are available to every
+ PEIM
+ @param[in] This Indicates the EFI_PEI_RECOVERY_BLOCK_IO_PPI instance.
+ @param[in] DeviceIndex Specifies the block device to which the function wants
+ to talk. Because the driver that implements Block I/O
+ PPIs will manage multiple block devices, the PPIs that
+ want to talk to a single device must specify the
+ device index that was assigned during the enumeration
+ process. This index is a number from one to
+ NumberBlockDevices.
+ @param[out] MediaInfo The media information of the specified block media.
+ The caller is responsible for the ownership of this
+ data structure.
+
+ @par Note:
+ The MediaInfo structure describes an enumeration of possible block device
+ types. This enumeration exists because no device paths are actually passed
+ across interfaces that describe the type or class of hardware that is publishing
+ the block I/O interface. This enumeration will allow for policy decisions
+ in the Recovery PEIM, such as "Try to recover from legacy floppy first,
+ LS-120 second, CD-ROM third." If there are multiple partitions abstracted
+ by a given device type, they should be reported in ascending order; this
+ order also applies to nested partitions, such as legacy MBR, where the
+ outermost partitions would have precedence in the reporting order. The
+ same logic applies to systems such as IDE that have precedence relationships
+ like "Master/Slave" or "Primary/Secondary". The master device should be
+ reported first, the slave second.
+
+ @retval EFI_SUCCESS Media information about the specified block device
+ was obtained successfully.
+ @retval EFI_DEVICE_ERROR Cannot get the media information due to a hardware
+ error.
+
+**/
+EFI_STATUS
+EFIAPI
+AhciBlockIoGetMediaInfo (
+ IN EFI_PEI_SERVICES **PeiServices,
+ IN EFI_PEI_RECOVERY_BLOCK_IO_PPI *This,
+ IN UINTN DeviceIndex,
+ OUT EFI_PEI_BLOCK_IO_MEDIA *MediaInfo
+ );
+
+/**
+ Reads the requested number of blocks from the specified block device.
+
+ The function reads the requested number of blocks from the device. All the
+ blocks are read, or an error is returned. If there is no media in the device,
+ the function returns EFI_NO_MEDIA.
+
+ @param[in] PeiServices General-purpose services that are available to
+ every PEIM.
+ @param[in] This Indicates the EFI_PEI_RECOVERY_BLOCK_IO_PPI instance.
+ @param[in] DeviceIndex Specifies the block device to which the function wants
+ to talk. Because the driver that implements Block I/O
+ PPIs will manage multiple block devices, PPIs that
+ want to talk to a single device must specify the device
+ index that was assigned during the enumeration process.
+ This index is a number from one to NumberBlockDevices.
+ @param[in] StartLBA The starting logical block address (LBA) to read from
+ on the device
+ @param[in] BufferSize The size of the Buffer in bytes. This number must be
+ a multiple of the intrinsic block size of the device.
+ @param[out] Buffer A pointer to the destination buffer for the data.
+ The caller is responsible for the ownership of the
+ buffer.
+
+ @retval EFI_SUCCESS The data was read correctly from the device.
+ @retval EFI_DEVICE_ERROR The device reported an error while attempting
+ to perform the read operation.
+ @retval EFI_INVALID_PARAMETER The read request contains LBAs that are not
+ valid, or the buffer is not properly aligned.
+ @retval EFI_NO_MEDIA There is no media in the device.
+ @retval EFI_BAD_BUFFER_SIZE The BufferSize parameter is not a multiple of
+ the intrinsic block size of the device.
+
+**/
+EFI_STATUS
+EFIAPI
+AhciBlockIoReadBlocks (
+ IN EFI_PEI_SERVICES **PeiServices,
+ IN EFI_PEI_RECOVERY_BLOCK_IO_PPI *This,
+ IN UINTN DeviceIndex,
+ IN EFI_PEI_LBA StartLBA,
+ IN UINTN BufferSize,
+ OUT VOID *Buffer
+ );
+
+/**
+ Gets the count of block I/O devices that one specific block driver detects.
+
+ This function is used for getting the count of block I/O devices that one
+ specific block driver detects. If no device is detected, then the function
+ will return zero.
+
+ @param[in] PeiServices General-purpose services that are available
+ to every PEIM.
+ @param[in] This Indicates the EFI_PEI_RECOVERY_BLOCK_IO2_PPI
+ instance.
+ @param[out] NumberBlockDevices The number of block I/O devices discovered.
+
+ @retval EFI_SUCCESS The operation performed successfully.
+
+**/
+EFI_STATUS
+EFIAPI
+AhciBlockIoGetDeviceNo2 (
+ IN EFI_PEI_SERVICES **PeiServices,
+ IN EFI_PEI_RECOVERY_BLOCK_IO2_PPI *This,
+ OUT UINTN *NumberBlockDevices
+ );
+
+/**
+ Gets a block device's media information.
+
+ This function will provide the caller with the specified block device's media
+ information. If the media changes, calling this function will update the media
+ information accordingly.
+
+ @param[in] PeiServices General-purpose services that are available to every
+ PEIM
+ @param[in] This Indicates the EFI_PEI_RECOVERY_BLOCK_IO2_PPI instance.
+ @param[in] DeviceIndex Specifies the block device to which the function wants
+ to talk. Because the driver that implements Block I/O
+ PPIs will manage multiple block devices, the PPIs that
+ want to talk to a single device must specify the
+ device index that was assigned during the enumeration
+ process. This index is a number from one to
+ NumberBlockDevices.
+ @param[out] MediaInfo The media information of the specified block media.
+ The caller is responsible for the ownership of this
+ data structure.
+
+ @par Note:
+ The MediaInfo structure describes an enumeration of possible block device
+ types. This enumeration exists because no device paths are actually passed
+ across interfaces that describe the type or class of hardware that is publishing
+ the block I/O interface. This enumeration will allow for policy decisions
+ in the Recovery PEIM, such as "Try to recover from legacy floppy first,
+ LS-120 second, CD-ROM third." If there are multiple partitions abstracted
+ by a given device type, they should be reported in ascending order; this
+ order also applies to nested partitions, such as legacy MBR, where the
+ outermost partitions would have precedence in the reporting order. The
+ same logic applies to systems such as IDE that have precedence relationships
+ like "Master/Slave" or "Primary/Secondary". The master device should be
+ reported first, the slave second.
+
+ @retval EFI_SUCCESS Media information about the specified block device
+ was obtained successfully.
+ @retval EFI_DEVICE_ERROR Cannot get the media information due to a hardware
+ error.
+
+**/
+EFI_STATUS
+EFIAPI
+AhciBlockIoGetMediaInfo2 (
+ IN EFI_PEI_SERVICES **PeiServices,
+ IN EFI_PEI_RECOVERY_BLOCK_IO2_PPI *This,
+ IN UINTN DeviceIndex,
+ OUT EFI_PEI_BLOCK_IO2_MEDIA *MediaInfo
+ );
+
+/**
+ Reads the requested number of blocks from the specified block device.
+
+ The function reads the requested number of blocks from the device. All the
+ blocks are read, or an error is returned. If there is no media in the device,
+ the function returns EFI_NO_MEDIA.
+
+ @param[in] PeiServices General-purpose services that are available to
+ every PEIM.
+ @param[in] This Indicates the EFI_PEI_RECOVERY_BLOCK_IO2_PPI instance.
+ @param[in] DeviceIndex Specifies the block device to which the function wants
+ to talk. Because the driver that implements Block I/O
+ PPIs will manage multiple block devices, PPIs that
+ want to talk to a single device must specify the device
+ index that was assigned during the enumeration process.
+ This index is a number from one to NumberBlockDevices.
+ @param[in] StartLBA The starting logical block address (LBA) to read from
+ on the device
+ @param[in] BufferSize The size of the Buffer in bytes. This number must be
+ a multiple of the intrinsic block size of the device.
+ @param[out] Buffer A pointer to the destination buffer for the data.
+ The caller is responsible for the ownership of the
+ buffer.
+
+ @retval EFI_SUCCESS The data was read correctly from the device.
+ @retval EFI_DEVICE_ERROR The device reported an error while attempting
+ to perform the read operation.
+ @retval EFI_INVALID_PARAMETER The read request contains LBAs that are not
+ valid, or the buffer is not properly aligned.
+ @retval EFI_NO_MEDIA There is no media in the device.
+ @retval EFI_BAD_BUFFER_SIZE The BufferSize parameter is not a multiple of
+ the intrinsic block size of the device.
+
+**/
+EFI_STATUS
+EFIAPI
+AhciBlockIoReadBlocks2 (
+ IN EFI_PEI_SERVICES **PeiServices,
+ IN EFI_PEI_RECOVERY_BLOCK_IO2_PPI *This,
+ IN UINTN DeviceIndex,
+ IN EFI_PEI_LBA StartLBA,
+ IN UINTN BufferSize,
+ OUT VOID *Buffer
+ );
+
+#endif
diff --git a/MdeModulePkg/Bus/Ata/AhciPei/AhciMode.c b/MdeModulePkg/Bus/Ata/AhciPei/AhciMode.c
index 939c5dbf4e..18e8d8b52d 100644
--- a/MdeModulePkg/Bus/Ata/AhciPei/AhciMode.c
+++ b/MdeModulePkg/Bus/Ata/AhciPei/AhciMode.c
@@ -1879,6 +1879,124 @@ AhciModeInitialization (
}
/**
+ Transfer data from ATA device.
+
+ This function performs one ATA pass through transaction to transfer data from/to
+ ATA device. It chooses the appropriate ATA command and protocol to invoke PassThru
+ interface of ATA pass through.
+
+ @param[in] DeviceData A pointer to PEI_AHCI_ATA_DEVICE_DATA structure.
+ @param[in,out] Buffer The pointer to the current transaction buffer.
+ @param[in] StartLba The starting logical block address to be accessed.
+ @param[in] TransferLength The block number or sector count of the transfer.
+ @param[in] IsWrite Indicates whether it is a write operation.
+
+ @retval EFI_SUCCESS The data transfer is complete successfully.
+ @return others Some error occurs when transferring data.
+
+**/
+EFI_STATUS
+TransferAtaDevice (
+ IN PEI_AHCI_ATA_DEVICE_DATA *DeviceData,
+ IN OUT VOID *Buffer,
+ IN EFI_LBA StartLba,
+ IN UINT32 TransferLength,
+ IN BOOLEAN IsWrite
+ )
+{
+ PEI_AHCI_CONTROLLER_PRIVATE_DATA *Private;
+ EDKII_PEI_ATA_PASS_THRU_PPI *AtaPassThru;
+ EFI_ATA_COMMAND_BLOCK Acb;
+ EFI_ATA_PASS_THRU_COMMAND_PACKET Packet;
+
+ Private = DeviceData->Private;
+ AtaPassThru = &Private->AtaPassThruPpi;
+
+ //
+ // Ensure Lba48Bit and IsWrite are valid boolean values
+ //
+ ASSERT ((UINTN) DeviceData->Lba48Bit < 2);
+ ASSERT ((UINTN) IsWrite < 2);
+ if (((UINTN) DeviceData->Lba48Bit >= 2) ||
+ ((UINTN) IsWrite >= 2)) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ //
+ // Prepare for ATA command block.
+ //
+ ZeroMem (&Acb, sizeof (EFI_ATA_COMMAND_BLOCK));
+ Acb.AtaCommand = mAtaCommands[DeviceData->Lba48Bit][IsWrite];
+ Acb.AtaSectorNumber = (UINT8) StartLba;
+ Acb.AtaCylinderLow = (UINT8) RShiftU64 (StartLba, 8);
+ Acb.AtaCylinderHigh = (UINT8) RShiftU64 (StartLba, 16);
+ Acb.AtaDeviceHead = (UINT8) (BIT7 | BIT6 | BIT5 |
+ (DeviceData->PortMultiplier == 0xFFFF ?
+ 0 : (DeviceData->PortMultiplier << 4)));
+ Acb.AtaSectorCount = (UINT8) TransferLength;
+ if (DeviceData->Lba48Bit) {
+ Acb.AtaSectorNumberExp = (UINT8) RShiftU64 (StartLba, 24);
+ Acb.AtaCylinderLowExp = (UINT8) RShiftU64 (StartLba, 32);
+ Acb.AtaCylinderHighExp = (UINT8) RShiftU64 (StartLba, 40);
+ Acb.AtaSectorCountExp = (UINT8) (TransferLength >> 8);
+ } else {
+ Acb.AtaDeviceHead = (UINT8) (Acb.AtaDeviceHead | RShiftU64 (StartLba, 24));
+ }
+
+ //
+ // Prepare for ATA pass through packet.
+ //
+ ZeroMem (&Packet, sizeof (EFI_ATA_PASS_THRU_COMMAND_PACKET));
+ if (IsWrite) {
+ Packet.OutDataBuffer = Buffer;
+ Packet.OutTransferLength = TransferLength;
+ } else {
+ Packet.InDataBuffer = Buffer;
+ Packet.InTransferLength = TransferLength;
+ }
+ Packet.Asb = NULL;
+ Packet.Acb = &Acb;
+ Packet.Protocol = mAtaPassThruCmdProtocols[IsWrite];
+ Packet.Length = EFI_ATA_PASS_THRU_LENGTH_SECTOR_COUNT;
+ //
+ // |------------------------|-----------------|
+ // | ATA PIO Transfer Mode | Transfer Rate |
+ // |------------------------|-----------------|
+ // | PIO Mode 0 | 3.3Mbytes/sec |
+ // |------------------------|-----------------|
+ // | PIO Mode 1 | 5.2Mbytes/sec |
+ // |------------------------|-----------------|
+ // | PIO Mode 2 | 8.3Mbytes/sec |
+ // |------------------------|-----------------|
+ // | PIO Mode 3 | 11.1Mbytes/sec |
+ // |------------------------|-----------------|
+ // | PIO Mode 4 | 16.6Mbytes/sec |
+ // |------------------------|-----------------|
+ //
+ // As AtaBus is used to manage ATA devices, we have to use the lowest transfer
+ // rate to calculate the possible maximum timeout value for each read/write
+ // operation. The timout value is rounded up to nearest integar and here an
+ // additional 30s is added to follow ATA spec in which it mentioned that the
+ // device may take up to 30s to respond commands in the Standby/Idle mode.
+ //
+ // Calculate the maximum timeout value for PIO read/write operation.
+ //
+ Packet.Timeout = TIMER_PERIOD_SECONDS (
+ DivU64x32 (
+ MultU64x32 (TransferLength, DeviceData->Media.BlockSize),
+ 3300000
+ ) + 31
+ );
+
+ return AtaPassThru->PassThru (
+ AtaPassThru,
+ DeviceData->Port,
+ DeviceData->PortMultiplier,
+ &Packet
+ );
+}
+
+/**
Trust transfer data from/to ATA device.
This function performs one ATA pass through transaction to do a trust transfer
diff --git a/MdeModulePkg/Bus/Ata/AhciPei/AhciPei.c b/MdeModulePkg/Bus/Ata/AhciPei/AhciPei.c
index 6df3d2c8d1..30966eeef0 100644
--- a/MdeModulePkg/Bus/Ata/AhciPei/AhciPei.c
+++ b/MdeModulePkg/Bus/Ata/AhciPei/AhciPei.c
@@ -18,11 +18,23 @@
#include "AhciPei.h"
EFI_PEI_PPI_DESCRIPTOR mAhciAtaPassThruPpiListTemplate = {
- (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
+ EFI_PEI_PPI_DESCRIPTOR_PPI,
&gEdkiiPeiAtaPassThruPpiGuid,
NULL
};
+EFI_PEI_PPI_DESCRIPTOR mAhciBlkIoPpiListTemplate = {
+ EFI_PEI_PPI_DESCRIPTOR_PPI,
+ &gEfiPeiVirtualBlockIoPpiGuid,
+ NULL
+};
+
+EFI_PEI_PPI_DESCRIPTOR mAhciBlkIo2PpiListTemplate = {
+ (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
+ &gEfiPeiVirtualBlockIo2PpiGuid,
+ NULL
+};
+
EFI_PEI_PPI_DESCRIPTOR mAhciStorageSecurityPpiListTemplate = {
(EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
&gEdkiiPeiStorageSecurityCommandPpiGuid,
@@ -270,6 +282,27 @@ AtaAhciPeimEntry (
sizeof (EFI_PEI_PPI_DESCRIPTOR)
);
Private->AtaPassThruPpiList.Ppi = &Private->AtaPassThruPpi;
+
+ Private->BlkIoPpi.GetNumberOfBlockDevices = AhciBlockIoGetDeviceNo;
+ Private->BlkIoPpi.GetBlockDeviceMediaInfo = AhciBlockIoGetMediaInfo;
+ Private->BlkIoPpi.ReadBlocks = AhciBlockIoReadBlocks;
+ CopyMem (
+ &Private->BlkIoPpiList,
+ &mAhciBlkIoPpiListTemplate,
+ sizeof (EFI_PEI_PPI_DESCRIPTOR)
+ );
+ Private->BlkIoPpiList.Ppi = &Private->BlkIoPpi;
+
+ Private->BlkIo2Ppi.Revision = EFI_PEI_RECOVERY_BLOCK_IO2_PPI_REVISION;
+ Private->BlkIo2Ppi.GetNumberOfBlockDevices = AhciBlockIoGetDeviceNo2;
+ Private->BlkIo2Ppi.GetBlockDeviceMediaInfo = AhciBlockIoGetMediaInfo2;
+ Private->BlkIo2Ppi.ReadBlocks = AhciBlockIoReadBlocks2;
+ CopyMem (
+ &Private->BlkIo2PpiList,
+ &mAhciBlkIo2PpiListTemplate,
+ sizeof (EFI_PEI_PPI_DESCRIPTOR)
+ );
+ Private->BlkIo2PpiList.Ppi = &Private->BlkIo2Ppi;
PeiServicesInstallPpi (&Private->AtaPassThruPpiList);
if (Private->TrustComputingDevices != 0) {
diff --git a/MdeModulePkg/Bus/Ata/AhciPei/AhciPeiBlockIo.c b/MdeModulePkg/Bus/Ata/AhciPei/AhciPeiBlockIo.c
new file mode 100644
index 0000000000..ff4247cb62
--- /dev/null
+++ b/MdeModulePkg/Bus/Ata/AhciPei/AhciPeiBlockIo.c
@@ -0,0 +1,533 @@
+/** @file
+ The AhciPei driver is used to manage ATA hard disk device working under AHCI
+ mode at PEI phase.
+
+ Copyright (c) 2019, 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 "AhciPei.h"
+
+/**
+ Traverse the attached ATA devices list to find out the device with given index.
+
+ @param[in] Private A pointer to the PEI_AHCI_CONTROLLER_PRIVATE_DATA
+ instance.
+ @param[in] DeviceIndex The device index.
+
+ @retval The pointer to the PEI_AHCI_ATA_DEVICE_DATA structure of the device
+ info to access.
+
+**/
+PEI_AHCI_ATA_DEVICE_DATA *
+SearchDeviceByIndex (
+ IN PEI_AHCI_CONTROLLER_PRIVATE_DATA *Private,
+ IN UINTN DeviceIndex
+ )
+{
+ PEI_AHCI_ATA_DEVICE_DATA *DeviceData;
+ LIST_ENTRY *Node;
+
+ Node = GetFirstNode (&Private->DeviceList);
+ while (!IsNull (&Private->DeviceList, Node)) {
+ DeviceData = AHCI_PEI_ATA_DEVICE_INFO_FROM_THIS (Node);
+
+ if (DeviceData->DeviceIndex == DeviceIndex) {
+ return DeviceData;
+ }
+
+ Node = GetNextNode (&Private->DeviceList, Node);
+ }
+
+ return NULL;
+}
+
+/**
+ Read a number of blocks from ATA device.
+
+ This function performs ATA pass through transactions to read data from ATA device.
+ It may separate the read request into several ATA pass through transactions.
+
+ @param[in] DeviceData The pointer to the PEI_AHCI_ATA_DEVICE_DATA
+ data structure.
+ @param[in,out] Buffer The pointer to the current transaction buffer.
+ @param[in] StartLba The starting logical block address to be accessed.
+ @param[in] NumberOfBlocks The block number or sector count of the transfer.
+
+ @retval EFI_SUCCESS The data transfer is complete successfully.
+ @return Others Some error occurs when transferring data.
+
+**/
+EFI_STATUS
+AccessAtaDevice (
+ IN PEI_AHCI_ATA_DEVICE_DATA *DeviceData,
+ IN OUT UINT8 *Buffer,
+ IN EFI_LBA StartLba,
+ IN UINTN NumberOfBlocks
+ )
+{
+ EFI_STATUS Status;
+ UINTN MaxTransferBlockNumber;
+ UINTN TransferBlockNumber;
+ UINTN BlockSize;
+
+ //
+ // Ensure Lba48Bit is a valid boolean value
+ //
+ ASSERT ((UINTN) DeviceData->Lba48Bit < 2);
+ if ((UINTN) DeviceData->Lba48Bit >= 2) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ Status = EFI_SUCCESS;
+ MaxTransferBlockNumber = mMaxTransferBlockNumber[DeviceData->Lba48Bit];
+ BlockSize = DeviceData->Media.BlockSize;
+
+ do {
+ if (NumberOfBlocks > MaxTransferBlockNumber) {
+ TransferBlockNumber = MaxTransferBlockNumber;
+ NumberOfBlocks -= MaxTransferBlockNumber;
+ } else {
+ TransferBlockNumber = NumberOfBlocks;
+ NumberOfBlocks = 0;
+ }
+ DEBUG ((
+ DEBUG_BLKIO, "%a: Blocking AccessAtaDevice, TransferBlockNumber = %x; StartLba = %x\n",
+ __FUNCTION__, TransferBlockNumber, StartLba
+ ));
+
+ Status = TransferAtaDevice (
+ DeviceData,
+ Buffer,
+ StartLba,
+ (UINT32) TransferBlockNumber,
+ FALSE // Read
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ StartLba += TransferBlockNumber;
+ Buffer += TransferBlockNumber * BlockSize;
+ } while (NumberOfBlocks > 0);
+
+ return Status;
+}
+
+/**
+ Read specified bytes from Lba from the device.
+
+ @param[in] DeviceData The pointer to the PEI_AHCI_ATA_DEVICE_DATA data structure.
+ @param[out] Buffer The Buffer used to store the Data read from the device.
+ @param[in] StartLba The start block number.
+ @param[in] BufferSize Total bytes to be read.
+
+ @retval EFI_SUCCESS Data are read from the device.
+ @retval Others Fail to read all the data.
+
+**/
+EFI_STATUS
+AhciRead (
+ IN PEI_AHCI_ATA_DEVICE_DATA *DeviceData,
+ OUT VOID *Buffer,
+ IN EFI_LBA StartLba,
+ IN UINTN BufferSize
+ )
+{
+ EFI_STATUS Status;
+ UINTN BlockSize;
+ UINTN NumberOfBlocks;
+
+ //
+ // Check parameters.
+ //
+ if (Buffer == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ if (BufferSize == 0) {
+ return EFI_SUCCESS;
+ }
+
+ BlockSize = DeviceData->Media.BlockSize;
+ if ((BufferSize % BlockSize) != 0) {
+ return EFI_BAD_BUFFER_SIZE;
+ }
+
+ if (StartLba > DeviceData->Media.LastBlock) {
+ return EFI_INVALID_PARAMETER;
+ }
+ NumberOfBlocks = BufferSize / BlockSize;
+ if (NumberOfBlocks - 1 > DeviceData->Media.LastBlock - StartLba) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ //
+ // Invoke low level AtaDevice Access Routine.
+ //
+ Status = AccessAtaDevice (DeviceData, Buffer, StartLba, NumberOfBlocks);
+
+ return Status;
+}
+
+
+/**
+ Gets the count of block I/O devices that one specific block driver detects.
+
+ This function is used for getting the count of block I/O devices that one
+ specific block driver detects. If no device is detected, then the function
+ will return zero.
+
+ @param[in] PeiServices General-purpose services that are available
+ to every PEIM.
+ @param[in] This Indicates the EFI_PEI_RECOVERY_BLOCK_IO_PPI
+ instance.
+ @param[out] NumberBlockDevices The number of block I/O devices discovered.
+
+ @retval EFI_SUCCESS The operation performed successfully.
+
+**/
+EFI_STATUS
+EFIAPI
+AhciBlockIoGetDeviceNo (
+ IN EFI_PEI_SERVICES **PeiServices,
+ IN EFI_PEI_RECOVERY_BLOCK_IO_PPI *This,
+ OUT UINTN *NumberBlockDevices
+ )
+{
+ PEI_AHCI_CONTROLLER_PRIVATE_DATA *Private;
+
+ if (This == NULL || NumberBlockDevices == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ Private = GET_AHCI_PEIM_HC_PRIVATE_DATA_FROM_THIS_BLKIO (This);
+ *NumberBlockDevices = Private->ActiveDevices;
+
+ return EFI_SUCCESS;
+}
+
+/**
+ Gets a block device's media information.
+
+ This function will provide the caller with the specified block device's media
+ information. If the media changes, calling this function will update the media
+ information accordingly.
+
+ @param[in] PeiServices General-purpose services that are available to every
+ PEIM
+ @param[in] This Indicates the EFI_PEI_RECOVERY_BLOCK_IO_PPI instance.
+ @param[in] DeviceIndex Specifies the block device to which the function wants
+ to talk. Because the driver that implements Block I/O
+ PPIs will manage multiple block devices, the PPIs that
+ want to talk to a single device must specify the
+ device index that was assigned during the enumeration
+ process. This index is a number from one to
+ NumberBlockDevices.
+ @param[out] MediaInfo The media information of the specified block media.
+ The caller is responsible for the ownership of this
+ data structure.
+
+ @par Note:
+ The MediaInfo structure describes an enumeration of possible block device
+ types. This enumeration exists because no device paths are actually passed
+ across interfaces that describe the type or class of hardware that is publishing
+ the block I/O interface. This enumeration will allow for policy decisions
+ in the Recovery PEIM, such as "Try to recover from legacy floppy first,
+ LS-120 second, CD-ROM third." If there are multiple partitions abstracted
+ by a given device type, they should be reported in ascending order; this
+ order also applies to nested partitions, such as legacy MBR, where the
+ outermost partitions would have precedence in the reporting order. The
+ same logic applies to systems such as IDE that have precedence relationships
+ like "Master/Slave" or "Primary/Secondary". The master device should be
+ reported first, the slave second.
+
+ @retval EFI_SUCCESS Media information about the specified block device
+ was obtained successfully.
+ @retval EFI_DEVICE_ERROR Cannot get the media information due to a hardware
+ error.
+
+**/
+EFI_STATUS
+EFIAPI
+AhciBlockIoGetMediaInfo (
+ IN EFI_PEI_SERVICES **PeiServices,
+ IN EFI_PEI_RECOVERY_BLOCK_IO_PPI *This,
+ IN UINTN DeviceIndex,
+ OUT EFI_PEI_BLOCK_IO_MEDIA *MediaInfo
+ )
+{
+ PEI_AHCI_CONTROLLER_PRIVATE_DATA *Private;
+ PEI_AHCI_ATA_DEVICE_DATA *DeviceData;
+
+ if (This == NULL || MediaInfo == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ Private = GET_AHCI_PEIM_HC_PRIVATE_DATA_FROM_THIS_BLKIO (This);
+ if ((DeviceIndex == 0) || (DeviceIndex > Private->ActiveDevices)) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ DeviceData = SearchDeviceByIndex (Private, DeviceIndex);
+ if (DeviceData == NULL) {
+ return EFI_NOT_FOUND;
+ }
+
+ MediaInfo->DeviceType = (EFI_PEI_BLOCK_DEVICE_TYPE) EDKII_PEI_BLOCK_DEVICE_TYPE_ATA_HARD_DISK;
+ MediaInfo->MediaPresent = TRUE;
+ MediaInfo->LastBlock = (UINTN) DeviceData->Media.LastBlock;
+ MediaInfo->BlockSize = DeviceData->Media.BlockSize;
+
+ return EFI_SUCCESS;
+}
+
+/**
+ Reads the requested number of blocks from the specified block device.
+
+ The function reads the requested number of blocks from the device. All the
+ blocks are read, or an error is returned. If there is no media in the device,
+ the function returns EFI_NO_MEDIA.
+
+ @param[in] PeiServices General-purpose services that are available to
+ every PEIM.
+ @param[in] This Indicates the EFI_PEI_RECOVERY_BLOCK_IO_PPI instance.
+ @param[in] DeviceIndex Specifies the block device to which the function wants
+ to talk. Because the driver that implements Block I/O
+ PPIs will manage multiple block devices, PPIs that
+ want to talk to a single device must specify the device
+ index that was assigned during the enumeration process.
+ This index is a number from one to NumberBlockDevices.
+ @param[in] StartLBA The starting logical block address (LBA) to read from
+ on the device
+ @param[in] BufferSize The size of the Buffer in bytes. This number must be
+ a multiple of the intrinsic block size of the device.
+ @param[out] Buffer A pointer to the destination buffer for the data.
+ The caller is responsible for the ownership of the
+ buffer.
+
+ @retval EFI_SUCCESS The data was read correctly from the device.
+ @retval EFI_DEVICE_ERROR The device reported an error while attempting
+ to perform the read operation.
+ @retval EFI_INVALID_PARAMETER The read request contains LBAs that are not
+ valid, or the buffer is not properly aligned.
+ @retval EFI_NO_MEDIA There is no media in the device.
+ @retval EFI_BAD_BUFFER_SIZE The BufferSize parameter is not a multiple of
+ the intrinsic block size of the device.
+
+**/
+EFI_STATUS
+EFIAPI
+AhciBlockIoReadBlocks (
+ IN EFI_PEI_SERVICES **PeiServices,
+ IN EFI_PEI_RECOVERY_BLOCK_IO_PPI *This,
+ IN UINTN DeviceIndex,
+ IN EFI_PEI_LBA StartLBA,
+ IN UINTN BufferSize,
+ OUT VOID *Buffer
+ )
+{
+ PEI_AHCI_CONTROLLER_PRIVATE_DATA *Private;
+ PEI_AHCI_ATA_DEVICE_DATA *DeviceData;
+
+ Private = GET_AHCI_PEIM_HC_PRIVATE_DATA_FROM_THIS_BLKIO (This);
+
+ //
+ // Check parameters
+ //
+ if ((This == NULL) ||
+ (DeviceIndex == 0) ||
+ (DeviceIndex > Private->ActiveDevices)) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ DeviceData = SearchDeviceByIndex (Private, DeviceIndex);
+ if (DeviceData == NULL) {
+ return EFI_NOT_FOUND;
+ }
+
+ return AhciRead (DeviceData, Buffer, StartLBA, BufferSize);
+}
+
+/**
+ Gets the count of block I/O devices that one specific block driver detects.
+
+ This function is used for getting the count of block I/O devices that one
+ specific block driver detects. If no device is detected, then the function
+ will return zero.
+
+ @param[in] PeiServices General-purpose services that are available
+ to every PEIM.
+ @param[in] This Indicates the EFI_PEI_RECOVERY_BLOCK_IO2_PPI
+ instance.
+ @param[out] NumberBlockDevices The number of block I/O devices discovered.
+
+ @retval EFI_SUCCESS The operation performed successfully.
+
+**/
+EFI_STATUS
+EFIAPI
+AhciBlockIoGetDeviceNo2 (
+ IN EFI_PEI_SERVICES **PeiServices,
+ IN EFI_PEI_RECOVERY_BLOCK_IO2_PPI *This,
+ OUT UINTN *NumberBlockDevices
+ )
+{
+ PEI_AHCI_CONTROLLER_PRIVATE_DATA *Private;
+
+ if (This == NULL || NumberBlockDevices == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ Private = GET_AHCI_PEIM_HC_PRIVATE_DATA_FROM_THIS_BLKIO2 (This);
+ *NumberBlockDevices = Private->ActiveDevices;
+
+ return EFI_SUCCESS;
+}
+
+/**
+ Gets a block device's media information.
+
+ This function will provide the caller with the specified block device's media
+ information. If the media changes, calling this function will update the media
+ information accordingly.
+
+ @param[in] PeiServices General-purpose services that are available to every
+ PEIM
+ @param[in] This Indicates the EFI_PEI_RECOVERY_BLOCK_IO2_PPI instance.
+ @param[in] DeviceIndex Specifies the block device to which the function wants
+ to talk. Because the driver that implements Block I/O
+ PPIs will manage multiple block devices, the PPIs that
+ want to talk to a single device must specify the
+ device index that was assigned during the enumeration
+ process. This index is a number from one to
+ NumberBlockDevices.
+ @param[out] MediaInfo The media information of the specified block media.
+ The caller is responsible for the ownership of this
+ data structure.
+
+ @par Note:
+ The MediaInfo structure describes an enumeration of possible block device
+ types. This enumeration exists because no device paths are actually passed
+ across interfaces that describe the type or class of hardware that is publishing
+ the block I/O interface. This enumeration will allow for policy decisions
+ in the Recovery PEIM, such as "Try to recover from legacy floppy first,
+ LS-120 second, CD-ROM third." If there are multiple partitions abstracted
+ by a given device type, they should be reported in ascending order; this
+ order also applies to nested partitions, such as legacy MBR, where the
+ outermost partitions would have precedence in the reporting order. The
+ same logic applies to systems such as IDE that have precedence relationships
+ like "Master/Slave" or "Primary/Secondary". The master device should be
+ reported first, the slave second.
+
+ @retval EFI_SUCCESS Media information about the specified block device
+ was obtained successfully.
+ @retval EFI_DEVICE_ERROR Cannot get the media information due to a hardware
+ error.
+
+**/
+EFI_STATUS
+EFIAPI
+AhciBlockIoGetMediaInfo2 (
+ IN EFI_PEI_SERVICES **PeiServices,
+ IN EFI_PEI_RECOVERY_BLOCK_IO2_PPI *This,
+ IN UINTN DeviceIndex,
+ OUT EFI_PEI_BLOCK_IO2_MEDIA *MediaInfo
+ )
+{
+ PEI_AHCI_CONTROLLER_PRIVATE_DATA *Private;
+ PEI_AHCI_ATA_DEVICE_DATA *DeviceData;
+
+ if (This == NULL || MediaInfo == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ Private = GET_AHCI_PEIM_HC_PRIVATE_DATA_FROM_THIS_BLKIO2 (This);
+ if ((DeviceIndex == 0) || (DeviceIndex > Private->ActiveDevices)) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ DeviceData = SearchDeviceByIndex (Private, DeviceIndex);
+ if (DeviceData == NULL) {
+ return EFI_NOT_FOUND;
+ }
+
+ CopyMem (
+ MediaInfo,
+ &DeviceData->Media,
+ sizeof (EFI_PEI_BLOCK_IO2_MEDIA)
+ );
+
+ return EFI_SUCCESS;
+}
+
+/**
+ Reads the requested number of blocks from the specified block device.
+
+ The function reads the requested number of blocks from the device. All the
+ blocks are read, or an error is returned. If there is no media in the device,
+ the function returns EFI_NO_MEDIA.
+
+ @param[in] PeiServices General-purpose services that are available to
+ every PEIM.
+ @param[in] This Indicates the EFI_PEI_RECOVERY_BLOCK_IO2_PPI instance.
+ @param[in] DeviceIndex Specifies the block device to which the function wants
+ to talk. Because the driver that implements Block I/O
+ PPIs will manage multiple block devices, PPIs that
+ want to talk to a single device must specify the device
+ index that was assigned during the enumeration process.
+ This index is a number from one to NumberBlockDevices.
+ @param[in] StartLBA The starting logical block address (LBA) to read from
+ on the device
+ @param[in] BufferSize The size of the Buffer in bytes. This number must be
+ a multiple of the intrinsic block size of the device.
+ @param[out] Buffer A pointer to the destination buffer for the data.
+ The caller is responsible for the ownership of the
+ buffer.
+
+ @retval EFI_SUCCESS The data was read correctly from the device.
+ @retval EFI_DEVICE_ERROR The device reported an error while attempting
+ to perform the read operation.
+ @retval EFI_INVALID_PARAMETER The read request contains LBAs that are not
+ valid, or the buffer is not properly aligned.
+ @retval EFI_NO_MEDIA There is no media in the device.
+ @retval EFI_BAD_BUFFER_SIZE The BufferSize parameter is not a multiple of
+ the intrinsic block size of the device.
+
+**/
+EFI_STATUS
+EFIAPI
+AhciBlockIoReadBlocks2 (
+ IN EFI_PEI_SERVICES **PeiServices,
+ IN EFI_PEI_RECOVERY_BLOCK_IO2_PPI *This,
+ IN UINTN DeviceIndex,
+ IN EFI_PEI_LBA StartLBA,
+ IN UINTN BufferSize,
+ OUT VOID *Buffer
+ )
+{
+ PEI_AHCI_CONTROLLER_PRIVATE_DATA *Private;
+
+ if (This == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ Private = GET_AHCI_PEIM_HC_PRIVATE_DATA_FROM_THIS_BLKIO2 (This);
+ return AhciBlockIoReadBlocks (
+ PeiServices,
+ &Private->BlkIoPpi,
+ DeviceIndex,
+ StartLBA,
+ BufferSize,
+ Buffer
+ );
+}
--
2.12.0.windows.1
^ permalink raw reply related [flat|nested] 3+ messages in thread
end of thread, other threads:[~2019-04-02 5:15 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2019-04-02 5:15 [PATCH v1 0/2] Add PEI BlockIO support for ATA AHCI mode devices Hao Wu
2019-04-02 5:15 ` [PATCH v1 1/2] MdeModulePkg/AhciPei: Limit max transfer blocknum for 48-bit address Hao Wu
2019-04-02 5:15 ` [PATCH v1 2/2] MdeModulePkg/AhciPei: Add PEI BlockIO support Hao Wu
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox