[PATCH v2 2/2] MdeModulePkg/AhciPei: Use PCI_DEVICE_PPI to manage AHCI device


Maciej Czajkowski
 

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3907

This change modifies AhciPei library to allow usage both EDKII_PCI_DEVICE_PPI
and EDKII_PEI_ATA_AHCI_HOST_CONTROLLER_PPI to manage ATA HDD working under
AHCI mode.

Cc: Hao A Wu <hao.a.wu@...>
Cc: Ray Ni <ray.ni@...>
Cc: Liming Gao <gaoliming@...>
Signed-off-by: Maciej Czajkowski <maciej.czajkowski@...>
---

Notes:
v2 changes:
- added missing function descriptions
- moved controller initialization from PCI_DEVICE_PPI to seperate funciton
in order to reduce code duplication
- added DevicePathLib BASE instance to the MdeModulePkg.dec to allow PEIMs to consume it

MdeModulePkg/Bus/Ata/AhciPei/AhciPei.c | 585 ++++++++++++++------
MdeModulePkg/Bus/Ata/AhciPei/DevicePath.c | 44 --
MdeModulePkg/Bus/Ata/AhciPei/AhciPei.h | 17 +-
MdeModulePkg/Bus/Ata/AhciPei/AhciPei.inf | 5 +-
MdeModulePkg/MdeModulePkg.dsc | 1 +
5 files changed, 430 insertions(+), 222 deletions(-)

diff --git a/MdeModulePkg/Bus/Ata/AhciPei/AhciPei.c b/MdeModulePkg/Bus/Ata/AhciPei/AhciPei.c
index 208b7e9a3606..8ad98dc76bc1 100644
--- a/MdeModulePkg/Bus/Ata/AhciPei/AhciPei.c
+++ b/MdeModulePkg/Bus/Ata/AhciPei/AhciPei.c
@@ -9,6 +9,47 @@
**/

#include "AhciPei.h"
+#include <Ppi/PciDevice.h>
+#include <Library/DevicePathLib.h>
+#include <IndustryStandard/Pci.h>
+
+/**
+ Callback for EDKII_ATA_AHCI_HOST_CONTROLLER_PPI installation.
+
+ @param[in] PeiServices Pointer to PEI Services Table.
+ @param[in] NotifyDescriptor Pointer to the descriptor for the Notification
+ event that caused this function to execute.
+ @param[in] Ppi Pointer to the PPI data associated with this function.
+
+ @retval EFI_SUCCESS The function completes successfully
+
+**/
+EFI_STATUS
+EFIAPI
+AtaAhciHostControllerPpiInstallationCallback (
+ IN EFI_PEI_SERVICES **PeiServices,
+ IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,
+ IN VOID *Ppi
+ );
+
+/**
+ Callback for EDKII_PCI_DEVICE_PPI installation.
+
+ @param[in] PeiServices Pointer to PEI Services Table.
+ @param[in] NotifyDescriptor Pointer to the descriptor for the Notification
+ event that caused this function to execute.
+ @param[in] Ppi Pointer to the PPI data associated with this function.
+
+ @retval EFI_SUCCESS The function completes successfully
+
+**/
+EFI_STATUS
+EFIAPI
+AtaAhciPciDevicePpiInstallationCallback (
+ IN EFI_PEI_SERVICES **PeiServices,
+ IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,
+ IN VOID *Ppi
+ );

EFI_PEI_PPI_DESCRIPTOR mAhciAtaPassThruPpiListTemplate = {
(EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
@@ -40,6 +81,18 @@ EFI_PEI_NOTIFY_DESCRIPTOR mAhciEndOfPeiNotifyListTemplate = {
AhciPeimEndOfPei
};

+EFI_PEI_NOTIFY_DESCRIPTOR mAtaAhciHostControllerNotify = {
+ (EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
+ &gEdkiiPeiAtaAhciHostControllerPpiGuid,
+ AtaAhciHostControllerPpiInstallationCallback
+};
+
+EFI_PEI_NOTIFY_DESCRIPTOR mPciDevicePpiNotify = {
+ (EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
+ &gEdkiiPeiPciDevicePpiGuid,
+ AtaAhciPciDevicePpiInstallationCallback
+};
+
/**
Free the DMA resources allocated by an ATA AHCI controller.

@@ -111,33 +164,30 @@ AhciPeimEndOfPei (
}

/**
- Entry point of the PEIM.
+ Initialize and install PrivateData PPIs.

- @param[in] FileHandle Handle of the file being invoked.
- @param[in] PeiServices Describes the list of possible PEI Services.
-
- @retval EFI_SUCCESS PPI successfully installed.
+ @param[in] MmioBase MMIO base address of specific AHCI controller
+ @param[in] DevicePath A pointer to the EFI_DEVICE_PATH_PROTOCOL
+ structure.
+ @param[in] DevicePathLength Length of the device path.

+ @retval EFI_SUCCESS AHCI controller initialized and PPIs installed
+ @retval others Failed to initialize AHCI controller
**/
EFI_STATUS
-EFIAPI
-AtaAhciPeimEntry (
- IN EFI_PEI_FILE_HANDLE FileHandle,
- IN CONST EFI_PEI_SERVICES **PeiServices
+AtaAhciInitPrivateData (
+ IN UINTN MmioBase,
+ IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,
+ IN UINTN DevicePathLength
)
{
- EFI_STATUS Status;
- EFI_BOOT_MODE BootMode;
- EDKII_ATA_AHCI_HOST_CONTROLLER_PPI *AhciHcPpi;
- UINT8 Controller;
- UINTN MmioBase;
- UINTN DevicePathLength;
- EFI_DEVICE_PATH_PROTOCOL *DevicePath;
- UINT32 PortBitMap;
- PEI_AHCI_CONTROLLER_PRIVATE_DATA *Private;
- UINT8 NumberOfPorts;
+ EFI_STATUS Status;
+ UINT32 PortBitMap;
+ UINT8 NumberOfPorts;
+ PEI_AHCI_CONTROLLER_PRIVATE_DATA *Private;
+ EFI_BOOT_MODE BootMode;

- DEBUG ((DEBUG_INFO, "%a: Enters.\n", __FUNCTION__));
+ DEBUG ((DEBUG_INFO, "Initializing private data for ATA\n"));

//
// Get the current boot mode.
@@ -149,19 +199,149 @@ AtaAhciPeimEntry (
}

//
- // Locate the ATA AHCI host controller PPI.
- //
- Status = PeiServicesLocatePpi (
- &gEdkiiPeiAtaAhciHostControllerPpiGuid,
- 0,
- NULL,
- (VOID **)&AhciHcPpi
- );
+ // Check validity of the device path of the ATA AHCI controller.
+ //
+ Status = AhciIsHcDevicePathValid (DevicePath, DevicePathLength);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((
+ DEBUG_ERROR,
+ "%a: The device path is invalid.\n",
+ __FUNCTION__
+ ));
+ return Status;
+ }
+
+ //
+ // For S3 resume performance consideration, not all ports on an ATA AHCI
+ // controller will be enumerated/initialized. The driver consumes the
+ // content within S3StorageDeviceInitList LockBox to get the ports that
+ // will be enumerated/initialized during S3 resume.
+ //
+ if (BootMode == BOOT_ON_S3_RESUME) {
+ NumberOfPorts = AhciS3GetEumeratePorts (DevicePath, DevicePathLength, &PortBitMap);
+ if (NumberOfPorts == 0) {
+ return EFI_SUCCESS;
+ }
+ } else {
+ PortBitMap = MAX_UINT32;
+ }
+
+ //
+ // Memory allocation for controller private data.
+ //
+ Private = AllocateZeroPool (sizeof (PEI_AHCI_CONTROLLER_PRIVATE_DATA));
+ if (Private == NULL) {
+ DEBUG ((
+ DEBUG_ERROR,
+ "%a: Fail to allocate private data.\n",
+ __FUNCTION__
+ ));
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ //
+ // Initialize controller private data.
+ //
+ Private->Signature = AHCI_PEI_CONTROLLER_PRIVATE_DATA_SIGNATURE;
+ Private->MmioBase = MmioBase;
+ Private->DevicePathLength = DevicePathLength;
+ Private->DevicePath = DevicePath;
+ Private->PortBitMap = PortBitMap;
+ InitializeListHead (&Private->DeviceList);
+
+ Status = AhciModeInitialization (Private);
if (EFI_ERROR (Status)) {
- DEBUG ((DEBUG_ERROR, "%a: Failed to locate AtaAhciHostControllerPpi.\n", __FUNCTION__));
- return EFI_UNSUPPORTED;
+ return Status;
+ }
+
+ Private->AtaPassThruMode.Attributes = EFI_ATA_PASS_THRU_ATTRIBUTES_PHYSICAL |
+ EFI_ATA_PASS_THRU_ATTRIBUTES_LOGICAL;
+ Private->AtaPassThruMode.IoAlign = sizeof (UINTN);
+ Private->AtaPassThruPpi.Revision = EDKII_PEI_ATA_PASS_THRU_PPI_REVISION;
+ Private->AtaPassThruPpi.Mode = &Private->AtaPassThruMode;
+ Private->AtaPassThruPpi.PassThru = AhciAtaPassThruPassThru;
+ Private->AtaPassThruPpi.GetNextPort = AhciAtaPassThruGetNextPort;
+ Private->AtaPassThruPpi.GetNextDevice = AhciAtaPassThruGetNextDevice;
+ Private->AtaPassThruPpi.GetDevicePath = AhciAtaPassThruGetDevicePath;
+ CopyMem (
+ &Private->AtaPassThruPpiList,
+ &mAhciAtaPassThruPpiListTemplate,
+ sizeof (EFI_PEI_PPI_DESCRIPTOR)
+ );
+ Private->AtaPassThruPpiList.Ppi = &Private->AtaPassThruPpi;
+ PeiServicesInstallPpi (&Private->AtaPassThruPpiList);
+
+ 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;
+ PeiServicesInstallPpi (&Private->BlkIoPpiList);
+
+ 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->BlkIo2PpiList);
+
+ if (Private->TrustComputingDevices != 0) {
+ DEBUG ((
+ DEBUG_INFO,
+ "%a: Security Security Command PPI will be produced.\n",
+ __FUNCTION__
+ ));
+ Private->StorageSecurityPpi.Revision = EDKII_STORAGE_SECURITY_PPI_REVISION;
+ Private->StorageSecurityPpi.GetNumberofDevices = AhciStorageSecurityGetDeviceNo;
+ Private->StorageSecurityPpi.GetDevicePath = AhciStorageSecurityGetDevicePath;
+ Private->StorageSecurityPpi.ReceiveData = AhciStorageSecurityReceiveData;
+ Private->StorageSecurityPpi.SendData = AhciStorageSecuritySendData;
+ CopyMem (
+ &Private->StorageSecurityPpiList,
+ &mAhciStorageSecurityPpiListTemplate,
+ sizeof (EFI_PEI_PPI_DESCRIPTOR)
+ );
+ Private->StorageSecurityPpiList.Ppi = &Private->StorageSecurityPpi;
+ PeiServicesInstallPpi (&Private->StorageSecurityPpiList);
}

+ CopyMem (
+ &Private->EndOfPeiNotifyList,
+ &mAhciEndOfPeiNotifyListTemplate,
+ sizeof (EFI_PEI_NOTIFY_DESCRIPTOR)
+ );
+ PeiServicesNotifyPpi (&Private->EndOfPeiNotifyList);
+
+ return EFI_SUCCESS;
+}
+
+/**
+ Initialize AHCI controller from EDKII_ATA_AHCI_HOST_CONTROLLER_PPI instance.
+
+ @param[in] AhciHcPpi Pointer to the AHCI Host Controller PPI instance.
+
+ @retval EFI_SUCCESS PPI successfully installed.
+**/
+EFI_STATUS
+AtaAhciInitPrivateDataFromHostControllerPpi (
+ IN EDKII_ATA_AHCI_HOST_CONTROLLER_PPI *AhciHcPpi
+ )
+{
+ UINT8 Controller;
+ UINTN MmioBase;
+ UINTN DevicePathLength;
+ EFI_DEVICE_PATH_PROTOCOL *DevicePath;
+ EFI_STATUS Status;
+
Controller = 0;
MmioBase = 0;
while (TRUE) {
@@ -193,65 +373,7 @@ AtaAhciPeimEntry (
return Status;
}

- //
- // Check validity of the device path of the ATA AHCI controller.
- //
- Status = AhciIsHcDevicePathValid (DevicePath, DevicePathLength);
- if (EFI_ERROR (Status)) {
- DEBUG ((
- DEBUG_ERROR,
- "%a: The device path is invalid for Controller %d.\n",
- __FUNCTION__,
- Controller
- ));
- Controller++;
- continue;
- }
-
- //
- // For S3 resume performance consideration, not all ports on an ATA AHCI
- // controller will be enumerated/initialized. The driver consumes the
- // content within S3StorageDeviceInitList LockBox to get the ports that
- // will be enumerated/initialized during S3 resume.
- //
- if (BootMode == BOOT_ON_S3_RESUME) {
- NumberOfPorts = AhciS3GetEumeratePorts (DevicePath, DevicePathLength, &PortBitMap);
- if (NumberOfPorts == 0) {
- //
- // No ports need to be enumerated for this controller.
- //
- Controller++;
- continue;
- }
- } else {
- PortBitMap = MAX_UINT32;
- }
-
- //
- // Memory allocation for controller private data.
- //
- Private = AllocateZeroPool (sizeof (PEI_AHCI_CONTROLLER_PRIVATE_DATA));
- if (Private == NULL) {
- DEBUG ((
- DEBUG_ERROR,
- "%a: Fail to allocate private data for Controller %d.\n",
- __FUNCTION__,
- Controller
- ));
- return EFI_OUT_OF_RESOURCES;
- }
-
- //
- // Initialize controller private data.
- //
- Private->Signature = AHCI_PEI_CONTROLLER_PRIVATE_DATA_SIGNATURE;
- Private->MmioBase = MmioBase;
- Private->DevicePathLength = DevicePathLength;
- Private->DevicePath = DevicePath;
- Private->PortBitMap = PortBitMap;
- InitializeListHead (&Private->DeviceList);
-
- Status = AhciModeInitialization (Private);
+ Status = AtaAhciInitPrivateData (MmioBase, DevicePath, DevicePathLength);
if (EFI_ERROR (Status)) {
DEBUG ((
DEBUG_ERROR,
@@ -260,86 +382,229 @@ AtaAhciPeimEntry (
Controller,
Status
));
- Controller++;
- continue;
- }
-
- Private->AtaPassThruMode.Attributes = EFI_ATA_PASS_THRU_ATTRIBUTES_PHYSICAL |
- EFI_ATA_PASS_THRU_ATTRIBUTES_LOGICAL;
- Private->AtaPassThruMode.IoAlign = sizeof (UINTN);
- Private->AtaPassThruPpi.Revision = EDKII_PEI_ATA_PASS_THRU_PPI_REVISION;
- Private->AtaPassThruPpi.Mode = &Private->AtaPassThruMode;
- Private->AtaPassThruPpi.PassThru = AhciAtaPassThruPassThru;
- Private->AtaPassThruPpi.GetNextPort = AhciAtaPassThruGetNextPort;
- Private->AtaPassThruPpi.GetNextDevice = AhciAtaPassThruGetNextDevice;
- Private->AtaPassThruPpi.GetDevicePath = AhciAtaPassThruGetDevicePath;
- CopyMem (
- &Private->AtaPassThruPpiList,
- &mAhciAtaPassThruPpiListTemplate,
- sizeof (EFI_PEI_PPI_DESCRIPTOR)
- );
- Private->AtaPassThruPpiList.Ppi = &Private->AtaPassThruPpi;
- PeiServicesInstallPpi (&Private->AtaPassThruPpiList);
-
- 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;
- PeiServicesInstallPpi (&Private->BlkIoPpiList);
-
- 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->BlkIo2PpiList);
-
- if (Private->TrustComputingDevices != 0) {
+ } else {
DEBUG ((
DEBUG_INFO,
- "%a: Security Security Command PPI will be produced for Controller %d.\n",
+ "%a: Controller %d has been successfully initialized.\n",
__FUNCTION__,
Controller
));
- Private->StorageSecurityPpi.Revision = EDKII_STORAGE_SECURITY_PPI_REVISION;
- Private->StorageSecurityPpi.GetNumberofDevices = AhciStorageSecurityGetDeviceNo;
- Private->StorageSecurityPpi.GetDevicePath = AhciStorageSecurityGetDevicePath;
- Private->StorageSecurityPpi.ReceiveData = AhciStorageSecurityReceiveData;
- Private->StorageSecurityPpi.SendData = AhciStorageSecuritySendData;
- CopyMem (
- &Private->StorageSecurityPpiList,
- &mAhciStorageSecurityPpiListTemplate,
- sizeof (EFI_PEI_PPI_DESCRIPTOR)
- );
- Private->StorageSecurityPpiList.Ppi = &Private->StorageSecurityPpi;
- PeiServicesInstallPpi (&Private->StorageSecurityPpiList);
}

- CopyMem (
- &Private->EndOfPeiNotifyList,
- &mAhciEndOfPeiNotifyListTemplate,
- sizeof (EFI_PEI_NOTIFY_DESCRIPTOR)
- );
- PeiServicesNotifyPpi (&Private->EndOfPeiNotifyList);
-
- DEBUG ((
- DEBUG_INFO,
- "%a: Controller %d has been successfully initialized.\n",
- __FUNCTION__,
- Controller
- ));
Controller++;
}

return EFI_SUCCESS;
}
+
+/**
+ Callback for EDKII_ATA_AHCI_HOST_CONTROLLER_PPI installation.
+
+ @param[in] PeiServices Pointer to PEI Services Table.
+ @param[in] NotifyDescriptor Pointer to the descriptor for the Notification
+ event that caused this function to execute.
+ @param[in] Ppi Pointer to the PPI data associated with this function.
+
+ @retval EFI_SUCCESS The function completes successfully
+ @retval Others Cannot initialize AHCI controller for given device
+**/
+EFI_STATUS
+EFIAPI
+AtaAhciHostControllerPpiInstallationCallback (
+ IN EFI_PEI_SERVICES **PeiServices,
+ IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,
+ IN VOID *Ppi
+ )
+{
+ EDKII_ATA_AHCI_HOST_CONTROLLER_PPI *AhciHcPpi;
+
+ if (Ppi == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ AhciHcPpi = (EDKII_ATA_AHCI_HOST_CONTROLLER_PPI *)Ppi;
+
+ return AtaAhciInitPrivateDataFromHostControllerPpi (AhciHcPpi);
+}
+
+/**
+ Initialize AHCI controller from fiven PCI_DEVICE_PPI.
+
+ @param[in] PciDevice Pointer to the PCI Device PPI instance.
+
+ @retval EFI_SUCCESS The function completes successfully
+ @retval Others Cannot initialize AHCI controller for given device
+**/
+EFI_STATUS
+AtaAhciInitPrivateDataFromPciDevice (
+ EDKII_PCI_DEVICE_PPI *PciDevice
+ )
+{
+ EFI_STATUS Status;
+ PCI_TYPE00 PciData;
+ UINTN MmioBase;
+ EFI_DEVICE_PATH_PROTOCOL *DevicePath;
+ UINTN DevicePathLength;
+
+ //
+ // Now further check the PCI header: Base Class (offset 0x0B) and
+ // Sub Class (offset 0x0A). This controller should be an SATA controller
+ //
+ Status = PciDevice->PciIo.Pci.Read (
+ &PciDevice->PciIo,
+ EfiPciIoWidthUint8,
+ PCI_CLASSCODE_OFFSET,
+ sizeof (PciData.Hdr.ClassCode),
+ PciData.Hdr.ClassCode
+ );
+ if (EFI_ERROR (Status)) {
+ return EFI_UNSUPPORTED;
+ }
+
+ if (!IS_PCI_IDE (&PciData) && !IS_PCI_SATADPA (&PciData)) {
+ return EFI_UNSUPPORTED;
+ }
+
+ Status = PciDevice->PciIo.Attributes (
+ &PciDevice->PciIo,
+ EfiPciIoAttributeOperationSet,
+ EFI_PCI_DEVICE_ENABLE,
+ NULL
+ );
+ if (EFI_ERROR (Status)) {
+ return EFI_UNSUPPORTED;
+ }
+
+ Status = PciDevice->PciIo.Pci.Read (
+ &PciDevice->PciIo,
+ EfiPciIoWidthUint32,
+ 0x24,
+ sizeof (UINTN),
+ &MmioBase
+ );
+ if (EFI_ERROR (Status)) {
+ return EFI_UNSUPPORTED;
+ }
+
+ DevicePathLength = GetDevicePathSize (PciDevice->DevicePath);
+ DevicePath = PciDevice->DevicePath;
+
+ Status = AtaAhciInitPrivateData (MmioBase, DevicePath, DevicePathLength);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((
+ DEBUG_INFO,
+ "%a: Failed to init controller, with Status - %r\n",
+ __FUNCTION__,
+ Status
+ ));
+ }
+
+ return EFI_SUCCESS;
+}
+
+/**
+ Callback for EDKII_PCI_DEVICE_PPI installation.
+
+ @param[in] PeiServices Pointer to PEI Services Table.
+ @param[in] NotifyDescriptor Pointer to the descriptor for the Notification
+ event that caused this function to execute.
+ @param[in] Ppi Pointer to the PPI data associated with this function.
+
+ @retval EFI_SUCCESS The function completes successfully
+ @retval Others Cannot initialize AHCI controller for given device
+**/
+EFI_STATUS
+EFIAPI
+AtaAhciPciDevicePpiInstallationCallback (
+ IN EFI_PEI_SERVICES **PeiServices,
+ IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,
+ IN VOID *Ppi
+ )
+{
+ EDKII_PCI_DEVICE_PPI *PciDevice;
+
+ PciDevice = (EDKII_PCI_DEVICE_PPI *)Ppi;
+
+ return AtaAhciInitPrivateDataFromPciDevice (PciDevice);
+}
+
+/**
+ Initialize AHCI controller from EDKII_ATA_AHCI_HOST_CONTROLLER_PPI instances found in the system.
+
+ @retval EFI_SUCCESS The function completes successfully
+**/
+EFI_STATUS
+AtaAhciInitPrivateDataFromPciDevices (
+ VOID
+ )
+{
+ EFI_STATUS Status;
+ UINTN ControllerIndex;
+ EDKII_PCI_DEVICE_PPI *PciDevice;
+
+ Status = EFI_SUCCESS;
+ for (ControllerIndex = 0; Status != EFI_NOT_FOUND; ControllerIndex++) {
+ Status = PeiServicesLocatePpi (
+ &gEdkiiPeiPciDevicePpiGuid,
+ ControllerIndex,
+ NULL,
+ (VOID **)&PciDevice
+ );
+ if (EFI_ERROR (Status)) {
+ continue;
+ }
+
+ AtaAhciInitPrivateDataFromPciDevice (PciDevice);
+
+ //
+ // Override the status to continue the for loop
+ //
+ Status = EFI_SUCCESS;
+ }
+
+ return EFI_SUCCESS;
+}
+
+/**
+ Entry point of the PEIM.
+
+ @param[in] FileHandle Handle of the file being invoked.
+ @param[in] PeiServices Describes the list of possible PEI Services.
+
+ @retval EFI_SUCCESS PPI successfully installed.
+
+**/
+EFI_STATUS
+EFIAPI
+AtaAhciPeimEntry (
+ IN EFI_PEI_FILE_HANDLE FileHandle,
+ IN CONST EFI_PEI_SERVICES **PeiServices
+ )
+{
+ EFI_STATUS Status;
+ EDKII_ATA_AHCI_HOST_CONTROLLER_PPI *AhciHcPpi;
+
+ DEBUG ((DEBUG_INFO, "%a: Enters.\n", __FUNCTION__));
+
+ PeiServicesNotifyPpi (&mAtaAhciHostControllerNotify);
+
+ PeiServicesNotifyPpi (&mPciDevicePpiNotify);
+
+ AtaAhciInitPrivateDataFromPciDevices ();
+
+ //
+ // Locate the ATA AHCI host controller PPI.
+ //
+ Status = PeiServicesLocatePpi (
+ &gEdkiiPeiAtaAhciHostControllerPpiGuid,
+ 0,
+ NULL,
+ (VOID **)&AhciHcPpi
+ );
+ if (!EFI_ERROR (Status)) {
+ DEBUG ((DEBUG_ERROR, "%a: Using AtaAhciHostControllerPpi to initialize private data.\n", __FUNCTION__));
+ Status = AtaAhciInitPrivateDataFromHostControllerPpi (AhciHcPpi);
+ }
+
+ return Status;
+}
diff --git a/MdeModulePkg/Bus/Ata/AhciPei/DevicePath.c b/MdeModulePkg/Bus/Ata/AhciPei/DevicePath.c
index 81f8743d40d8..cf0955929dde 100644
--- a/MdeModulePkg/Bus/Ata/AhciPei/DevicePath.c
+++ b/MdeModulePkg/Bus/Ata/AhciPei/DevicePath.c
@@ -38,50 +38,6 @@ EFI_DEVICE_PATH_PROTOCOL mAhciEndDevicePathNodeTemplate = {
}
};

-/**
- Returns the 16-bit Length field of a device path node.
-
- Returns the 16-bit Length field of the device path node specified by Node.
- Node is not required to be aligned on a 16-bit boundary, so it is recommended
- that a function such as ReadUnaligned16() be used to extract the contents of
- the Length field.
-
- If Node is NULL, then ASSERT().
-
- @param Node A pointer to a device path node data structure.
-
- @return The 16-bit Length field of the device path node specified by Node.
-
-**/
-UINTN
-DevicePathNodeLength (
- IN CONST VOID *Node
- )
-{
- ASSERT (Node != NULL);
- return ReadUnaligned16 ((UINT16 *)&((EFI_DEVICE_PATH_PROTOCOL *)(Node))->Length[0]);
-}
-
-/**
- Returns a pointer to the next node in a device path.
-
- If Node is NULL, then ASSERT().
-
- @param Node A pointer to a device path node data structure.
-
- @return a pointer to the device path node that follows the device path node
- specified by Node.
-
-**/
-EFI_DEVICE_PATH_PROTOCOL *
-NextDevicePathNode (
- IN CONST VOID *Node
- )
-{
- ASSERT (Node != NULL);
- return (EFI_DEVICE_PATH_PROTOCOL *)((UINT8 *)(Node) + DevicePathNodeLength (Node));
-}
-
/**
Get the size of the current device path instance.

diff --git a/MdeModulePkg/Bus/Ata/AhciPei/AhciPei.h b/MdeModulePkg/Bus/Ata/AhciPei/AhciPei.h
index 43ad4639bd77..7332c4051a0c 100644
--- a/MdeModulePkg/Bus/Ata/AhciPei/AhciPei.h
+++ b/MdeModulePkg/Bus/Ata/AhciPei/AhciPei.h
@@ -29,6 +29,7 @@
#include <Library/BaseMemoryLib.h>
#include <Library/IoLib.h>
#include <Library/TimerLib.h>
+#include <Library/DevicePathLib.h>

//
// Structure forward declarations
@@ -631,22 +632,6 @@ TrustTransferAtaDevice (
OUT UINTN *TransferLengthOut
);

-/**
- Returns a pointer to the next node in a device path.
-
- If Node is NULL, then ASSERT().
-
- @param Node A pointer to a device path node data structure.
-
- @return a pointer to the device path node that follows the device path node
- specified by Node.
-
-**/
-EFI_DEVICE_PATH_PROTOCOL *
-NextDevicePathNode (
- IN CONST VOID *Node
- );
-
/**
Get the size of the current device path instance.

diff --git a/MdeModulePkg/Bus/Ata/AhciPei/AhciPei.inf b/MdeModulePkg/Bus/Ata/AhciPei/AhciPei.inf
index 912ff7a8ba4f..788660b33299 100644
--- a/MdeModulePkg/Bus/Ata/AhciPei/AhciPei.inf
+++ b/MdeModulePkg/Bus/Ata/AhciPei/AhciPei.inf
@@ -50,11 +50,13 @@ [LibraryClasses]
TimerLib
LockBoxLib
PeimEntryPoint
+ DevicePathLib

[Ppis]
gEdkiiPeiAtaAhciHostControllerPpiGuid ## CONSUMES
gEdkiiIoMmuPpiGuid ## CONSUMES
gEfiEndOfPeiSignalPpiGuid ## CONSUMES
+ gEdkiiPeiPciDevicePpiGuid ## CONSUMES
gEdkiiPeiAtaPassThruPpiGuid ## SOMETIMES_PRODUCES
gEfiPeiVirtualBlockIoPpiGuid ## SOMETIMES_PRODUCES
gEfiPeiVirtualBlockIo2PpiGuid ## SOMETIMES_PRODUCES
@@ -65,8 +67,7 @@ [Guids]

[Depex]
gEfiPeiMemoryDiscoveredPpiGuid AND
- gEfiPeiMasterBootModePpiGuid AND
- gEdkiiPeiAtaAhciHostControllerPpiGuid
+ gEfiPeiMasterBootModePpiGuid

[UserExtensions.TianoCore."ExtraFiles"]
AhciPeiExtra.uni
diff --git a/MdeModulePkg/MdeModulePkg.dsc b/MdeModulePkg/MdeModulePkg.dsc
index 90a0a7ec4a7c..45a8ec84ad69 100644
--- a/MdeModulePkg/MdeModulePkg.dsc
+++ b/MdeModulePkg/MdeModulePkg.dsc
@@ -117,6 +117,7 @@ [LibraryClasses.common.PEIM]
MemoryAllocationLib|MdePkg/Library/PeiMemoryAllocationLib/PeiMemoryAllocationLib.inf
ExtractGuidedSectionLib|MdePkg/Library/PeiExtractGuidedSectionLib/PeiExtractGuidedSectionLib.inf
LockBoxLib|MdeModulePkg/Library/SmmLockBoxLib/SmmLockBoxPeiLib.inf
+ DevicePathLib|MdePkg/Library/UefiDevicePathLib/UefiDevicePathLibBase.inf

[LibraryClasses.common.DXE_CORE]
HobLib|MdePkg/Library/DxeCoreHobLib/DxeCoreHobLib.inf
--
2.27.0.windows.1

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