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MdeModulePkg RamDiskDxe: Not use hardcode 'SectionInstance' to locate SSDT

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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>
This commit is contained in:
Hao Wu 2016-07-12 20:10:42 +08:00
parent 6596018924
commit 6558fd7311
1 changed files with 36 additions and 22 deletions
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58
MdeModulePkg/Universal/Disk/RamDiskDxe/RamDiskProtocol.c
View File

@ -75,35 +75,49 @@ RamDiskPublishSsdt (
{
EFI_STATUS Status;
EFI_ACPI_DESCRIPTION_HEADER *Table;
UINTN SectionInstance;
UINTN TableSize;
Status = GetSectionFromFv (
&gEfiCallerIdGuid,
EFI_SECTION_RAW,
1,
(VOID **) &Table,
&TableSize
);
ASSERT_EFI_ERROR (Status);
Status = EFI_SUCCESS;
SectionInstance = 0;
ASSERT (Table->OemTableId == SIGNATURE_64 ('R', 'a', 'm', 'D', 'i', 's', 'k', ' '));
//
// Scan all the EFI raw section instances in FV to find the NVDIMM root
// device SSDT.
//
while (TRUE) {
Status = GetSectionFromFv (
&gEfiCallerIdGuid,
EFI_SECTION_RAW,
SectionInstance,
(VOID **) &Table,
&TableSize
);
if (EFI_ERROR (Status)) {
break;
}
Status = mAcpiTableProtocol->InstallAcpiTable (
mAcpiTableProtocol,
Table,
TableSize,
&mRamDiskSsdtTableKey
);
ASSERT_EFI_ERROR (Status);
if (Table->OemTableId == SIGNATURE_64 ('R', 'a', 'm', 'D', 'i', 's', 'k', ' ')) {
Status = mAcpiTableProtocol->InstallAcpiTable (
mAcpiTableProtocol,
Table,
TableSize,
&mRamDiskSsdtTableKey
);
ASSERT_EFI_ERROR (Status);
if (!EFI_ERROR (Status)) {
mRamDiskSsdtTableKeyValid = TRUE;
} else {
mRamDiskSsdtTableKeyValid = FALSE;
if (!EFI_ERROR (Status)) {
mRamDiskSsdtTableKeyValid = TRUE;
}
FreePool (Table);
return Status;
} else {
FreePool (Table);
SectionInstance++;
}
}
FreePool (Table);
return Status;
}