Introduces the below PPI:
struct EDKII_NVM_EXPRESS_HOST_CONTROLLER_PPI {
EDKII_NVM_EXPRESS_HC_GET_MMIO_BAR GetNvmeHcMmioBar;
EDKII_NVM_EXPRESS_HC_GET_DEVICE_PATH GetNvmeHcDevicePath;
};
The GetNvmeHcMmioBar service will provide the caller with the MMIO BAR
address of each NVMe HC within the system;
The GetNvmeHcDevicePath service will provide the caller with the device
path information of each NVMe HC.
Cc: Star Zeng <star.z...@intel.com>
Cc: Eric Dong <eric.d...@intel.com>
Cc: Ruiyu Ni <ruiyu...@intel.com>
Cc: Jiewen Yao <jiewen....@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Hao Wu <hao.a...@intel.com>
---
MdeModulePkg/Include/Ppi/NvmExpressHostController.h | 97 ++++++++++++++++++++
MdeModulePkg/MdeModulePkg.dec | 3 +
2 files changed, 100 insertions(+)
diff --git a/MdeModulePkg/Include/Ppi/NvmExpressHostController.h
b/MdeModulePkg/Include/Ppi/NvmExpressHostController.h
new file mode 100644
index 0000000000..de9ae4a59c
--- /dev/null
+++ b/MdeModulePkg/Include/Ppi/NvmExpressHostController.h
@@ -0,0 +1,97 @@
+/** @file
+
+ Copyright (c) 2018, 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 _EDKII_NVM_EXPRESS_HOST_CONTROLLER_PPI_H_
+#define _EDKII_NVM_EXPRESS_HOST_CONTROLLER_PPI_H_
+
+#include <Protocol/DevicePath.h>
+
+///
+/// Global ID for the EDKII_NVM_EXPRESS_HOST_CONTROLLER_PPI.
+///
+#define EDKII_NVME_EXPRESS_HOST_CONTROLLER_PPI_GUID \
+ { \
+ 0xcae3aa63, 0x676f, 0x4da3, { 0xbd, 0x50, 0x6c, 0xc5, 0xed, 0xde, 0x9a,
0xad } \
+ }
+
+//
+// Forward declaration for the EDKII_NVM_EXPRESS_HOST_CONTROLLER_PPI.
+//
+typedef struct _EDKII_NVM_EXPRESS_HOST_CONTROLLER_PPI
EDKII_NVM_EXPRESS_HOST_CONTROLLER_PPI;
+
+/**
+ Get the MMIO base address of NVM Express host controller.
+
+ @param[in] PeiServices Describes the list of possible PEI Services.
+ @param[in] This The PPI instance pointer.
+ @param[in] ControllerId The ID of the NVM Express host controller.
+ @param[out] MmioBar The MMIO base address of the controller.
+
+ @retval EFI_SUCCESS The operation succeeds.
+ @retval EFI_INVALID_PARAMETER The parameters are invalid.
+ @retval EFI_NOT_FOUND The specified NVM Express host controller
not
+ found.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EDKII_NVM_EXPRESS_HC_GET_MMIO_BAR) (
+ IN EFI_PEI_SERVICES **PeiServices,
+ IN EDKII_NVM_EXPRESS_HOST_CONTROLLER_PPI *This,
+ IN UINT8 ControllerId,
+ OUT UINTN *MmioBar
+ );
+
+/**
+ Get the device path of NVM Express host controller.
+
+ @param[in] PeiServices Describes the list of possible PEI Services.
+ @param[in] This The PPI instance pointer.
+ @param[in] ControllerId The ID of the NVM Express host controller.
+ @param[out] DevicePathLenth The length of the device path in bytes
specified
+ by DevicePath.
+ @param[out] DevicePath The device path of NVM Express host
controller.
+ The caller is responsible for freeing it.
+ This field re-uses EFI Device Path Protocol
as
+ defined by Section 10.2 EFI Device Path
Protocol
+ of UEFI 2.7 Specification.
+
+ @retval EFI_SUCCESS The operation succeeds.
+ @retval EFI_INVALID_PARAMETER The parameters are invalid.
+ @retval EFI_NOT_FOUND The specified NVM Express host controller
not
+ found.
+ @retval EFI_OUT_OF_RESOURCES The operation fails due to lack of
resources.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EDKII_NVM_EXPRESS_HC_GET_DEVICE_PATH) (
+ IN EFI_PEI_SERVICES **PeiServices,
+ IN EDKII_NVM_EXPRESS_HOST_CONTROLLER_PPI *This,
+ IN UINT8 ControllerId,
+ OUT UINTN *DevicePathLenth,
+ OUT EFI_DEVICE_PATH_PROTOCOL **DevicePath
+ );
+
+//
+// This PPI contains a set of services to interact with the NVM Express host
+// controller.
+//
+struct _EDKII_NVM_EXPRESS_HOST_CONTROLLER_PPI {
+ EDKII_NVM_EXPRESS_HC_GET_MMIO_BAR GetNvmeHcMmioBar;
+ EDKII_NVM_EXPRESS_HC_GET_DEVICE_PATH GetNvmeHcDevicePath;
+};
+
+extern EFI_GUID gEdkiiPeiNvmExpressHostControllerPpiGuid;
+
+#endif
diff --git a/MdeModulePkg/MdeModulePkg.dec b/MdeModulePkg/MdeModulePkg.dec
index 3802b6e0b8..8d7c97ee91 100644
--- a/MdeModulePkg/MdeModulePkg.dec
+++ b/MdeModulePkg/MdeModulePkg.dec
@@ -471,6 +471,9 @@
## Include/Ppi/PlatformSpecificResetHandler.h
gEdkiiPlatformSpecificResetHandlerPpiGuid = { 0x75cf14ae, 0x3441, 0x49dc, {
0xaa, 0x10, 0xbb, 0x35, 0xa7, 0xba, 0x8b, 0xab } }
+ ## Include/Ppi/NvmExpressHostController.h
+ gEdkiiPeiNvmExpressHostControllerPpiGuid = { 0xcae3aa63, 0x676f, 0x4da3, {
0xbd, 0x50, 0x6c, 0xc5, 0xed, 0xde, 0x9a, 0xad } }
+
[Protocols]
## Load File protocol provides capability to load and unload EFI image into
memory and execute it.
# Include/Protocol/LoadPe32Image.h
--
2.12.0.windows.1
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