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PrmPkg: Add initial PrmSsdtInstallDxe module

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Adds a new module that installs a PRM SSDT.

Note: A library class would allow a high degree of flexibility for
platforms that choose:
  1. To not install a PRM SSDT at all (using a NULL library instance)
  2. To install a specific PRM SSDT implementation

However, it is implemented as a driver since build tools are not
linking ACPI tables to drivers from linked library classes.

Cc: Andrew Fish <afish@apple.com>
Cc: Kang Gao <kang.gao@intel.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Michael Kubacki <michael.kubacki@microsoft.com>
Cc: Leif Lindholm <leif@nuviainc.com>
Cc: Benjamin You <benjamin.you@intel.com>
Cc: Liu Yun <yun.y.liu@intel.com>
Cc: Ankit Sinha <ankit.sinha@intel.com>
Cc: Nate DeSimone <nathaniel.l.desimone@intel.com>
Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com>
Acked-by: Michael D Kinney <michael.d.kinney@intel.com>
Acked-by: Liming Gao <gaoliming@byosoft.com.cn>
Acked-by: Leif Lindholm <quic_llindhol@quicinc.com>
Reviewed-by: Ankit Sinha <ankit.sinha@intel.com>
This commit is contained in:
Michael Kubacki
2020-05-20 10:56:03 -07:00
committed by mergify[bot]
parent f96517f4d0
commit 50e1432a40
6 changed files with 171 additions and 51 deletions
Download Patch File Download Diff File Expand all files Collapse all files

33
PrmPkg/PrmLoaderDxe/PrmLoaderDxe.c
View File

@@ -20,7 +20,6 @@
#include <Library/PrmContextBufferLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/UefiLib.h>
#include <Library/DxeServicesLib.h>
#include <Protocol/AcpiTable.h>
#include <Protocol/LoadedImage.h>
#include <Protocol/PrmConfig.h>
@@ -811,8 +810,6 @@ PublishPrmAcpiTable (
EFI_STATUS Status;
EFI_ACPI_TABLE_PROTOCOL *AcpiTableProtocol;
UINTN TableKey;
EFI_ACPI_DESCRIPTION_HEADER *Ssdt;
UINTN SsdtSize;
if (PrmAcpiDescriptionTable == NULL || PrmAcpiDescriptionTable->Header.Signature != PRM_TABLE_SIGNATURE) {
return EFI_INVALID_PARAMETER;
@@ -836,36 +833,6 @@ PublishPrmAcpiTable (
}
ASSERT_EFI_ERROR (Status);
//
// Load SSDT
//
Status = GetSectionFromFv (
&gEfiCallerIdGuid,
EFI_SECTION_RAW,
0,
(VOID **) &Ssdt,
&SsdtSize
);
ASSERT_EFI_ERROR (Status);
DEBUG ((DEBUG_INFO, "%a %a: SSDT loaded ...\n", _DBGMSGID_, __FUNCTION__));
//
// Update OEM ID
//
CopyMem (&Ssdt->OemId, PcdGetPtr (PcdAcpiDefaultOemId), sizeof (Ssdt->OemId));
//
// Publish the SSDT. Table is re-checksumed.
//
TableKey = 0;
Status = AcpiTableProtocol->InstallAcpiTable (
AcpiTableProtocol,
Ssdt,
SsdtSize,
&TableKey
);
ASSERT_EFI_ERROR (Status);
return Status;
}