Commit Graph

10 Commits

Author SHA1 Message Date
Hao Wu 6558fd7311 MdeModulePkg RamDiskDxe: Not use hardcode 'SectionInstance' to locate SSDT
This commit will scan all the EFI raw section instances within the
module's FV to make sure the NVDIMM root device SSDT can be properly
located.

Cc: Feng Tian <feng.tian@intel.com>
Cc: Zhang Chao B <chao.b.zhang@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Chao Zhang <chao.b.zhang@intel.com>
2016-07-20 15:07:19 +08:00
Hao Wu 3ab7066e8d MdeModulePkg RamDiskDxe: Fix VS2010 build error
Potentially uninitialized local variables 'TableKey' and 'TableHeader'
might be used in functions RamDiskPublishNfit() and RamDiskUnpublishNfit()
in file RamDiskProtocol.c.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Qiu Shumin <shumin.qiu@intel.com>
2016-05-30 11:44:57 +08:00
Hao Wu 09abc63675 MdeModulePkg RamDiskDxe: Fix wrong HII behavior for more than 8 RAM disks
The RamDiskDxe driver originally uses a variable-length HII varstore to
retrieve the HII checkbox status of each registered RAM disk.

However, HII does not support the variable-length varstore feature.
Therefore, only the checkbox status for the first 8 RAM disks are tracked
for the following definition of HII varstore structure considering the
alignment:

typedef struct {
  UINT64    Size;
  UINT8     RamDiskList[0];
  } RAM_DISK_CONFIGURATION;

This commit uses the private data of each registered RAM disks to track
the HII checkbox status instead to resolve the issue.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Feng Tian <feng.tian@intel.com>
2016-05-10 11:08:57 +08:00
Hao Wu 07a3fecd4c MdeModulePkg RamDiskDxe: Report ACPI NFIT for reserved memory RAM disks
The RamDiskDxe now will report RAM disks with reserved memory type to NFIT
in the ACPI table.

This commit will also make sure that an NVDIMM root device exists in the
\SB scope before reporting any RAM disk to NFIT.

To properly report the NVDIMM root device, one will need to append the
following content in the [Rule.Common.DXE_DRIVER] field in platform FDF
files:

RAW ACPI  Optional                |.acpi
RAW ASL   Optional                |.aml

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Feng Tian <feng.tian@intel.com>
Reviewed-by: Samer El-Haj-Mahmoud <elhaj@hpe.com>
2016-05-10 08:45:11 +08:00
Samer El-Haj-Mahmoud 5eae4ff002 MdeModulePkg RamDiskDxe: Fix incorrect RAM disk memory address calculation
EndingAddress is calculated incorrectly. Original code calculates it as
(StartingAddress + Size). Correct value should be (StartingAddress +
Size - 1.

Note:
Besides the changes made by Samer, Hao also fixed a similar issue in
RamDiskImpl.c

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Samer El-Haj-Mahmoud <elhaj@hpe.com>
Signed-off-by: Tapan Shah <tapandshah@hpe.com>
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Tapan Shah <tapandshah@hpe.com>
2016-03-31 13:08:44 +08:00
Hao Wu 6a9bc80154 MdeModulePkg RamDiskDxe: Remove unnecessary TPL raise operations
There is no asynchronous operations to the registered RAM disks link list
maintained within RamDiskDxe driver, therefore, the TPL raise and restore
operations when dealing with the link list are unnecessary.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Feng Tian <feng.tian@intel.com>
2016-03-23 13:38:19 +08:00
Hao Wu 28620e603d MdeModulePkg RamDiskDxe: Uninstall DEVICE_PATH_PROTOCOL with correct param
Previously, the code uninstalls the DEVICE_PATH_PROTOCOL with the device
path given by caller of the 'RamDiskUnregister' function. The given device
path might be different from the one used to install the
DEVICE_PATH_PROTOCOL.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Feng Tian <feng.tian@intel.com>
2016-03-23 13:38:10 +08:00
Hao Wu 21a976e4c0 MdeModulePkg RamDiskDxe: Remove unnecessary 'DisconnectController' calls
The 'DisconnectController' function calls after
'UninstallMultipleProtocolInterfaces' are unnecessary, since
'DisconnectController' is called inside function
'UninstallMultipleProtocolInterfaces'.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Feng Tian <feng.tian@intel.com>
2016-03-23 13:38:01 +08:00
Hao Wu 216fefa3f5 MdeModulePkg RamDiskDxe: Install Block I/O 2 Protocol on RAM disk devices
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Samer El-Haj-Mahmoud <elhaj@hpe.com>
Reviewed-by: Feng Tian <feng.tian@intel.com>
2016-02-29 13:51:19 +08:00
Hao Wu 20752cb8e7 MdeModulePkg: Add RamDiskDxe driver implementation
The RamDiskDxe driver will:
1. Produce the EFI RAM Disk Protocol
2. Install RAM disk device path and block I/O related protocols on the
   RAM disk device handle.
3. Install RAM disk configuration form to HII database

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Samer El-Haj-Mahmoud <elhaj@hpe.com>
Reviewed-by: Feng Tian <feng.tian@intel.com>
2016-02-29 13:51:08 +08:00