diff options
| -rw-r--r-- | MdeModulePkg/Universal/SmbiosDxe/SmbiosDxe.c | 293 | ||||
| -rw-r--r-- | MdeModulePkg/Universal/SmbiosDxe/SmbiosDxe.h | 11 |
2 files changed, 191 insertions, 113 deletions
diff --git a/MdeModulePkg/Universal/SmbiosDxe/SmbiosDxe.c b/MdeModulePkg/Universal/SmbiosDxe/SmbiosDxe.c index 8b2efa14a1..56ece92c9a 100644 --- a/MdeModulePkg/Universal/SmbiosDxe/SmbiosDxe.c +++ b/MdeModulePkg/Universal/SmbiosDxe/SmbiosDxe.c @@ -105,15 +105,15 @@ SMBIOS_TABLE_ENTRY_POINT EntryPointStructureData = { /**
- Get the full size of smbios structure including optional strings that follow the formatted structure.
+ Get the full size of SMBIOS structure including optional strings that follow the formatted structure.
@param This The EFI_SMBIOS_PROTOCOL instance.
- @param Head Pointer to the beginning of smbios structure.
+ @param Head Pointer to the beginning of SMBIOS structure.
@param Size The returned size.
@param NumberOfStrings The returned number of optional strings that follow the formatted structure.
@retval EFI_SUCCESS Size retured in Size.
- @retval EFI_INVALID_PARAMETER Input smbios structure mal-formed or Size is NULL.
+ @retval EFI_INVALID_PARAMETER Input SMBIOS structure mal-formed or Size is NULL.
**/
EFI_STATUS
@@ -187,7 +187,7 @@ GetSmbiosStructureSize ( Determin whether an SmbiosHandle has already in use.
- @param Head Pointer to the beginning of smbios structure.
+ @param Head Pointer to the beginning of SMBIOS structure.
@param Handle A unique handle will be assigned to the SMBIOS record.
@retval TRUE Smbios handle already in use.
@@ -409,6 +409,14 @@ SmbiosAdd ( ((EFI_SMBIOS_TABLE_HEADER*)Raw)->Handle = *SmbiosHandle;
//
+ // Some UEFI drivers (such as network) need some information in SMBIOS table.
+ // Here we create SMBIOS table and publish it in
+ // configuration table, so other UEFI drivers can get SMBIOS table from
+ // configuration table without depending on PI SMBIOS protocol.
+ //
+ SmbiosTableConstruction ();
+
+ //
// Leave critical section
//
EfiReleaseLock (&Private->DataLock);
@@ -499,7 +507,7 @@ SmbiosUpdateString ( if (Record->Handle == *SmbiosHandle) {
//
- // Find out the specified Smbios record
+ // Find out the specified SMBIOS record
//
if (*StringNumber > SmbiosEntry->RecordHeader->NumberOfStrings) {
EfiReleaseLock (&Private->DataLock);
@@ -538,6 +546,13 @@ SmbiosUpdateString ( TargetStrLen = AsciiStrLen(StrStart);
if (InputStrLen == TargetStrLen) {
AsciiStrCpy(StrStart, String);
+ //
+ // Some UEFI drivers (such as network) need some information in SMBIOS table.
+ // Here we create SMBIOS table and publish it in
+ // configuration table, so other UEFI drivers can get SMBIOS table from
+ // configuration table without depending on PI SMBIOS protocol.
+ //
+ SmbiosTableConstruction ();
EfiReleaseLock (&Private->DataLock);
return EFI_SUCCESS;
}
@@ -567,7 +582,7 @@ SmbiosUpdateString ( InternalRecord->NumberOfStrings = SmbiosEntry->RecordHeader->NumberOfStrings;
//
- // Copy smbios structure and optional strings.
+ // Copy SMBIOS structure and optional strings.
//
CopyMem (Raw, SmbiosEntry->RecordHeader + 1, Record->Length + TargetStrOffset);
CopyMem ((VOID*)((UINTN)Raw + Record->Length + TargetStrOffset), String, InputStrLen + 1);
@@ -588,6 +603,13 @@ SmbiosUpdateString ( //
RemoveEntryList(Link);
FreePool(SmbiosEntry);
+ //
+ // Some UEFI drivers (such as network) need some information in SMBIOS table.
+ // Here we create SMBIOS table and publish it in
+ // configuration table, so other UEFI drivers can get SMBIOS table from
+ // configuration table without depending on PI SMBIOS protocol.
+ //
+ SmbiosTableConstruction ();
EfiReleaseLock (&Private->DataLock);
return EFI_SUCCESS;
}
@@ -663,6 +685,13 @@ SmbiosRemove ( break;
}
}
+ //
+ // Some UEFI drivers (such as network) need some information in SMBIOS table.
+ // Here we create SMBIOS table and publish it in
+ // configuration table, so other UEFI drivers can get SMBIOS table from
+ // configuration table without depending on PI SMBIOS protocol.
+ //
+ SmbiosTableConstruction ();
EfiReleaseLock (&Private->DataLock);
return EFI_SUCCESS;
}
@@ -691,7 +720,6 @@ SmbiosRemove ( If a NULL pointer is passed in no data will be returned
@retval EFI_SUCCESS SMBIOS record information was successfully returned in Record.
- SmbiosHandle is the handle of the current SMBIOS record
@retval EFI_NOT_FOUND The SMBIOS record with SmbiosHandle was the last available record.
**/
@@ -740,7 +768,7 @@ SmbiosGetNext ( }
//
- // Start this round search from the next Smbios handle
+ // Start this round search from the next SMBIOS handle
//
if (!StartPointFound && (*SmbiosHandle == SmbiosTableHeader->Handle)) {
StartPointFound = TRUE;
@@ -767,9 +795,65 @@ SmbiosGetNext ( }
+/**
+ Allow the caller to discover all of the SMBIOS records.
+
+ @param This The EFI_SMBIOS_PROTOCOL instance.
+ @param CurrentSmbiosEntry On exit, points to the SMBIOS entry on the list which includes the returned SMBIOS record information.
+ If *CurrentSmbiosEntry is NULL on entry, then the first SMBIOS entry on the list will be returned.
+ @param Record On exit, points to the SMBIOS Record consisting of the formatted area followed by
+ the unformatted area. The unformatted area optionally contains text strings.
+
+ @retval EFI_SUCCESS SMBIOS record information was successfully returned in Record.
+ *CurrentSmbiosEntry points to the SMBIOS entry which includes the returned SMBIOS record information.
+ @retval EFI_NOT_FOUND There is no more SMBIOS entry.
+
+**/
+EFI_STATUS
+EFIAPI
+GetNextSmbiosRecord (
+ IN CONST EFI_SMBIOS_PROTOCOL *This,
+ IN OUT EFI_SMBIOS_ENTRY **CurrentSmbiosEntry,
+ OUT EFI_SMBIOS_TABLE_HEADER **Record
+ )
+{
+ LIST_ENTRY *Link;
+ LIST_ENTRY *Head;
+ SMBIOS_INSTANCE *Private;
+ EFI_SMBIOS_ENTRY *SmbiosEntry;
+ EFI_SMBIOS_TABLE_HEADER *SmbiosTableHeader;
+
+ Private = SMBIOS_INSTANCE_FROM_THIS (This);
+ if (*CurrentSmbiosEntry == NULL) {
+ //
+ // Get the beginning of SMBIOS entry.
+ //
+ Head = &Private->DataListHead;
+ } else {
+ //
+ // Get previous SMBIOS entry and make it as start point.
+ //
+ Head = &(*CurrentSmbiosEntry)->Link;
+ }
+
+ Link = Head->ForwardLink;
+
+ if (Link == &Private->DataListHead) {
+ //
+ // If no more SMBIOS entry in the list, return not found.
+ //
+ return EFI_NOT_FOUND;
+ }
+
+ SmbiosEntry = SMBIOS_ENTRY_FROM_LINK(Link);
+ SmbiosTableHeader = (EFI_SMBIOS_TABLE_HEADER*)(SmbiosEntry->RecordHeader + 1);
+ *Record = SmbiosTableHeader;
+ *CurrentSmbiosEntry = SmbiosEntry;
+ return EFI_SUCCESS;
+}
/**
- Assembles Smbios table from the SMBIOS protocol. Produce Table
+ Assembles SMBIOS table from the SMBIOS protocol. Produce Table
Entry Point and return the pointer to it.
@param TableEntryPointStructure On exit, points to the SMBIOS entrypoint structure.
@@ -794,54 +878,18 @@ SmbiosCreateTable ( EFI_PHYSICAL_ADDRESS PhysicalAddress;
EFI_SMBIOS_TABLE_HEADER *SmbiosRecord;
EFI_SMBIOS_TABLE_END_STRUCTURE EndStructure;
+ EFI_SMBIOS_ENTRY *CurrentSmbiosEntry;
+ UINTN PreAllocatedPages;
Status = EFI_SUCCESS;
BufferPointer = NULL;
//
- // Initialize the EntryPointStructure with initial values.
+ // Get Smbios protocol to traverse SMBIOS records.
//
- if (EntryPointStructure == NULL) {
- //
- // Allocate memory (below 4GB)
- //
- PhysicalAddress = 0xffffffff;
- Status = gBS->AllocatePages (
- AllocateMaxAddress,
- EfiReservedMemoryType,
- EFI_SIZE_TO_PAGES (sizeof (SMBIOS_TABLE_ENTRY_POINT)),
- &PhysicalAddress
- );
- if (EFI_ERROR (Status)) {
- return EFI_OUT_OF_RESOURCES;
- }
+ SmbiosProtocol = &mPrivateData.Smbios;
- EntryPointStructure = (SMBIOS_TABLE_ENTRY_POINT *) (UINTN) PhysicalAddress;
-
- CopyMem (
- EntryPointStructure,
- &EntryPointStructureData,
- sizeof (SMBIOS_TABLE_ENTRY_POINT)
- );
- }
-
- //
- // Free the original image
- //
- if (EntryPointStructure->TableAddress != 0) {
- FreePages (
- (VOID*)(UINTN)EntryPointStructure->TableAddress,
- EFI_SIZE_TO_PAGES (EntryPointStructure->TableLength)
- );
- EntryPointStructure->TableAddress = 0;
- }
-
- //
- // Locate smbios protocol to traverse smbios records.
- //
- Status = gBS->LocateProtocol (&gEfiSmbiosProtocolGuid, NULL, (VOID **) &SmbiosProtocol);
- ASSERT_EFI_ERROR (Status);
- ASSERT (SmbiosProtocol != NULL);
+ PreAllocatedPages = EFI_SIZE_TO_PAGES (EntryPointStructure->TableLength);
//
// Make some statistics about all the structures
@@ -849,19 +897,13 @@ SmbiosCreateTable ( EntryPointStructure->NumberOfSmbiosStructures = 0;
EntryPointStructure->TableLength = 0;
EntryPointStructure->MaxStructureSize = 0;
- SmbiosHandle = 0;
//
// Calculate EPS Table Length
//
+ CurrentSmbiosEntry = NULL;
do {
- Status = SmbiosProtocol->GetNext (
- SmbiosProtocol,
- &SmbiosHandle,
- NULL,
- &SmbiosRecord,
- NULL
- );
+ Status = GetNextSmbiosRecord (SmbiosProtocol, &CurrentSmbiosEntry, &SmbiosRecord);
if (Status == EFI_SUCCESS) {
GetSmbiosStructureSize(SmbiosProtocol, SmbiosRecord, &RecordSize, &NumOfStr);
@@ -890,38 +932,44 @@ SmbiosCreateTable ( if (sizeof (EndStructure) > EntryPointStructure->MaxStructureSize) {
EntryPointStructure->MaxStructureSize = (UINT16) sizeof (EndStructure);
}
-
- //
- // Allocate memory (below 4GB)
- //
- PhysicalAddress = 0xffffffff;
- Status = gBS->AllocatePages (
- AllocateMaxAddress,
- EfiReservedMemoryType,
- EFI_SIZE_TO_PAGES (EntryPointStructure->TableLength),
- &PhysicalAddress
- );
- if (EFI_ERROR (Status)) {
- FreePages ((VOID*) EntryPointStructure, EFI_SIZE_TO_PAGES (sizeof (SMBIOS_TABLE_ENTRY_POINT)));
- EntryPointStructure = NULL;
- return EFI_OUT_OF_RESOURCES;
- }
- EntryPointStructure->TableAddress = (UINT32) PhysicalAddress;
+ if (EFI_SIZE_TO_PAGES (EntryPointStructure->TableLength) > PreAllocatedPages) {
+ //
+ // If new SMBIOS talbe size exceeds the original pre-allocated page,
+ // it is time to re-allocate memory (below 4GB).
+ //
+ if (EntryPointStructure->TableAddress != 0) {
+ //
+ // Free the original pre-allocated page
+ //
+ FreePages (
+ (VOID*)(UINTN)EntryPointStructure->TableAddress,
+ PreAllocatedPages
+ );
+ EntryPointStructure->TableAddress = 0;
+ }
+
+ PhysicalAddress = 0xffffffff;
+ Status = gBS->AllocatePages (
+ AllocateMaxAddress,
+ EfiReservedMemoryType,
+ EFI_SIZE_TO_PAGES (EntryPointStructure->TableLength),
+ &PhysicalAddress
+ );
+ if (EFI_ERROR (Status)) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+ EntryPointStructure->TableAddress = (UINT32) PhysicalAddress;
+ }
//
// Assemble the tables
//
- BufferPointer = (UINT8 *) (UINTN) PhysicalAddress;
- SmbiosHandle = 0;
+ BufferPointer = (UINT8 *) (UINTN) EntryPointStructure->TableAddress;
+ CurrentSmbiosEntry = NULL;
do {
- Status = SmbiosProtocol->GetNext (
- SmbiosProtocol,
- &SmbiosHandle,
- NULL,
- &SmbiosRecord,
- NULL
- );
+ Status = GetNextSmbiosRecord (SmbiosProtocol, &CurrentSmbiosEntry, &SmbiosRecord);
+
if (Status == EFI_SUCCESS) {
GetSmbiosStructureSize(SmbiosProtocol, SmbiosRecord, &RecordSize, &NumOfStr);
CopyMem (BufferPointer, SmbiosRecord, RecordSize);
@@ -950,21 +998,13 @@ SmbiosCreateTable ( return EFI_SUCCESS;
}
-
-
/**
- Installs the Smbios Table to the System Table. This function gets called
- when the EFI_EVENT_SIGNAL_READY_TO_BOOT gets signaled
-
- @param Event The event to signal
- @param Context Event contex
-
+ Create SMBIOS Table and install it to the System Table.
**/
VOID
EFIAPI
SmbiosTableConstruction (
- IN EFI_EVENT Event,
- IN VOID *Context
+ VOID
)
{
UINT8 *Eps;
@@ -976,10 +1016,9 @@ SmbiosTableConstruction ( }
}
-
/**
- Driver to produce Smbios protocol and register event for constructing SMBIOS table.
+ Driver to produce Smbios protocol and pre-allocate 1 page for the final SMBIOS table.
@param ImageHandle Module's image handle
@param SystemTable Pointer of EFI_SYSTEM_TABLE
@@ -996,7 +1035,7 @@ SmbiosDriverEntryPoint ( )
{
EFI_STATUS Status;
- EFI_EVENT ReadyToBootEvent;
+ EFI_PHYSICAL_ADDRESS PhysicalAddress;
mPrivateData.Signature = SMBIOS_INSTANCE_SIGNATURE;
mPrivateData.Smbios.Add = SmbiosAdd;
@@ -1009,7 +1048,52 @@ SmbiosDriverEntryPoint ( InitializeListHead (&mPrivateData.DataListHead);
InitializeListHead (&mPrivateData.AllocatedHandleListHead);
EfiInitializeLock (&mPrivateData.DataLock, TPL_NOTIFY);
+
+ //
+ // Initialize the EntryPointStructure with initial values.
+ // Allocate memory (below 4GB).
+ //
+ PhysicalAddress = 0xffffffff;
+ Status = gBS->AllocatePages (
+ AllocateMaxAddress,
+ EfiReservedMemoryType,
+ EFI_SIZE_TO_PAGES (sizeof (SMBIOS_TABLE_ENTRY_POINT)),
+ &PhysicalAddress
+ );
+ if (EFI_ERROR (Status)) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ EntryPointStructure = (SMBIOS_TABLE_ENTRY_POINT *) (UINTN) PhysicalAddress;
+ CopyMem (
+ EntryPointStructure,
+ &EntryPointStructureData,
+ sizeof (SMBIOS_TABLE_ENTRY_POINT)
+ );
+
+ //
+ // Pre-allocate 1 page for SMBIOS table below 4GB.
+ // SMBIOS table will be updated when new SMBIOS type is added or
+ // existing SMBIOS type is updated. If the total size of SMBIOS table exceeds 1 page,
+ // we will re-allocate new memory when creating whole SMBIOS table.
+ //
+ PhysicalAddress = 0xffffffff;
+ Status = gBS->AllocatePages (
+ AllocateMaxAddress,
+ EfiReservedMemoryType,
+ 1,
+ &PhysicalAddress
+ );
+ if (EFI_ERROR (Status)) {
+ FreePages ((VOID*) EntryPointStructure, EFI_SIZE_TO_PAGES (sizeof (SMBIOS_TABLE_ENTRY_POINT)));
+ EntryPointStructure = NULL;
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ EntryPointStructure->TableAddress = (UINT32) PhysicalAddress;
+ EntryPointStructure->TableLength = EFI_PAGES_TO_SIZE (1);
+
//
// Make a new handle and install the protocol
//
@@ -1021,20 +1105,5 @@ SmbiosDriverEntryPoint ( &mPrivateData.Smbios
);
- if (EFI_ERROR(Status)) {
- return Status;
- }
- //
- // Register the event to install SMBIOS Table into EFI System Table
- //
- Status = gBS->CreateEventEx (
- EVT_NOTIFY_SIGNAL,
- TPL_NOTIFY,
- SmbiosTableConstruction,
- NULL,
- &gEfiEventReadyToBootGuid,
- &ReadyToBootEvent
- );
-
return Status;
}
diff --git a/MdeModulePkg/Universal/SmbiosDxe/SmbiosDxe.h b/MdeModulePkg/Universal/SmbiosDxe/SmbiosDxe.h index 6000bda3cf..3c78b993bd 100644 --- a/MdeModulePkg/Universal/SmbiosDxe/SmbiosDxe.h +++ b/MdeModulePkg/Universal/SmbiosDxe/SmbiosDxe.h @@ -1,7 +1,7 @@ /** @file
This code supports the implementation of the Smbios protocol
-Copyright (c) 2009 - 2010, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2009 - 2011, 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
@@ -108,4 +108,13 @@ typedef struct { UINT8 Tailing[2];
} EFI_SMBIOS_TABLE_END_STRUCTURE;
+/**
+ Create Smbios Table and installs the Smbios Table to the System Table.
+**/
+VOID
+EFIAPI
+SmbiosTableConstruction (
+ VOID
+ );
+
#endif
|