[edk2-devel] [edk2-platforms PATCH 2/2] Platform/RPi3: Improve the population of PlatformSmbiosDxe elements

Pete Batard pete at akeo.ie
Wed Sep 4 12:14:18 UTC 2019


This patch cleans up the population SMBIOS entries by removing elements
that we don't have data for, as well as properly filling the ones for
which we do, through the newly added queries from RpiFirmwareDxe.

String parsing code is also added to BIOSInfoUpdateSmbiosType0() so
that any numeric "x.y" value being passed in PcdFirmwareVersionString
will now be used to populate the BIOS major and minor.

Additional minor improvements are also applied, such as consistent use
of uppercase values.

Signed-off-by: Pete Batard <pete at akeo.ie>
---
 Platform/RaspberryPi/RPi3/Drivers/PlatformSmbiosDxe/PlatformSmbiosDxe.c   | 193 ++++++++++++--------
 Platform/RaspberryPi/RPi3/Drivers/PlatformSmbiosDxe/PlatformSmbiosDxe.inf |   1 +
 Platform/RaspberryPi/RPi3/RPi3.dsc                                        |   2 +-
 3 files changed, 117 insertions(+), 79 deletions(-)

diff --git a/Platform/RaspberryPi/RPi3/Drivers/PlatformSmbiosDxe/PlatformSmbiosDxe.c b/Platform/RaspberryPi/RPi3/Drivers/PlatformSmbiosDxe/PlatformSmbiosDxe.c
index bc35175279f2..66ffadd0cade 100644
--- a/Platform/RaspberryPi/RPi3/Drivers/PlatformSmbiosDxe/PlatformSmbiosDxe.c
+++ b/Platform/RaspberryPi/RPi3/Drivers/PlatformSmbiosDxe/PlatformSmbiosDxe.c
@@ -35,11 +35,14 @@
 #include <Library/UefiDriverEntryPoint.h>
 #include <Library/UefiLib.h>
 #include <Library/BaseLib.h>
+#include <Library/PcdLib.h>
 #include <Library/BaseMemoryLib.h>
 #include <Library/MemoryAllocationLib.h>
 #include <Library/UefiBootServicesTableLib.h>
 #include <Library/PrintLib.h>
 
+#define SMB_IS_DIGIT(c)  (((c) >= '0') && ((c) <= '9'))
+
 STATIC RASPBERRY_PI_FIRMWARE_PROTOCOL *mFwProtocol;
 
 /***********************************************************************
@@ -49,7 +52,7 @@ SMBIOS_TABLE_TYPE0 mBIOSInfoType0 = {
   { EFI_SMBIOS_TYPE_BIOS_INFORMATION, sizeof (SMBIOS_TABLE_TYPE0), 0 },
   1,                    // Vendor String
   2,                    // BiosVersion String
-  0x0,                  // BiosSegment
+  0,                    // BiosSegment
   3,                    // BiosReleaseDate String
   0x1F,                 // BiosSize
   {                     // BiosCharacteristics
@@ -97,23 +100,25 @@ SMBIOS_TABLE_TYPE0 mBIOSInfoType0 = {
           //  Boot1394IsSupported               :1;
           //  SmartBatteryIsSupported           :1;
           //  BIOSCharacteristicsExtensionBytes[1]
-    0x0e, //  BiosBootSpecIsSupported              :1;
+    0x0E, //  BiosBootSpecIsSupported              :1;
           //  FunctionKeyNetworkBootIsSupported    :1;
           //  TargetContentDistributionEnabled     :1;
           //  UefiSpecificationSupported           :1;
           //  VirtualMachineSupported              :1;
           //  ExtensionByte2Reserved               :3;
   },
-  0xFF,                    // SystemBiosMajorRelease
-  0xFF,                    // SystemBiosMinorRelease
-  0xFF,                    // EmbeddedControllerFirmwareMajorRelease
-  0xFF,                    // EmbeddedControllerFirmwareMinorRelease
+  0,                       // SystemBiosMajorRelease
+  0,                       // SystemBiosMinorRelease
+  0,                       // EmbeddedControllerFirmwareMajorRelease
+  0,                       // EmbeddedControllerFirmwareMinorRelease
 };
 
+CHAR8 mBiosVersion[128] = "EDK2-DEV";
+
 CHAR8 *mBIOSInfoType0Strings[] = {
-  "https://github.com/andreiw/RaspberryPiPkg",             // Vendor String
-  "Raspberry Pi 64-bit UEFI (" __DATE__ " " __TIME__ ")",  // BiosVersion String
-  __DATE__,
+  "TianoCore",                    // Vendor
+  mBiosVersion,                   // Version
+  __DATE__ " " __TIME__,          // Release Date
   NULL
 };
 
@@ -132,42 +137,19 @@ SMBIOS_TABLE_TYPE1 mSysInfoType1 = {
   6,    // Family String
 };
 
-#define PROD_BASE     8
-#define PROD_KNOWN   13
-#define PROD_UNKNOWN 11
-CHAR8 *ProductNames[] = {
-  /* 8 */ "3",
-  /* 9 */ "Zero",
-  /* 10 */ "CM3",
-  /* 11 */ "???",
-  /* 12 */ "Zero W",
-  /* 13 */ "3B+"
-};
-
-#define MANU_UNKNOWN 0
-#define MANU_KNOWN   4
-#define MANU_BASE    1
-CHAR8 *ManufNames[] = {
-  "???",
-  /* 0 */ "Sony",
-  /* 1 */ "Egoman",
-  /* 2 */ "Embest",
-  /* 3 */ "Sony Japan",
-  /* 4 */ "Embest"
-};
-
-CHAR8 mSysInfoManufName[sizeof ("Sony Japan")];
-CHAR8 mSysInfoProductName[sizeof ("64-bit Raspberry Pi XXXXXX (rev. xxxxxxxx)")];
+CHAR8 mSysInfoManufName[128];
+CHAR8 mSysInfoProductName[128];
+CHAR8 mSysInfoVersionName[128];
 CHAR8 mSysInfoSerial[sizeof (UINT64) * 2 + 1];
 CHAR8 mSysInfoSKU[sizeof (UINT64) * 2 + 1];
 
 CHAR8 *mSysInfoType1Strings[] = {
   mSysInfoManufName,
   mSysInfoProductName,
-  mSysInfoProductName,
+  mSysInfoVersionName,
   mSysInfoSerial,
   mSysInfoSKU,
-  "edk2",
+  "Raspberry Pi",
   NULL
 };
 
@@ -180,7 +162,7 @@ SMBIOS_TABLE_TYPE2 mBoardInfoType2 = {
   2,    // ProductName String
   3,    // Version String
   4,    // SerialNumber String
-  5,    // AssetTag String
+  0,    // AssetTag String
   {     // FeatureFlag
     1,    //  Motherboard           :1;
     0,    //  RequiresDaughterCard  :1;
@@ -189,7 +171,7 @@ SMBIOS_TABLE_TYPE2 mBoardInfoType2 = {
     0,    //  HotSwappable          :1;
     0,    //  Reserved              :3;
   },
-  6,    // LocationInChassis String
+  0,                        // LocationInChassis String
   0,                        // ChassisHandle;
   BaseBoardTypeMotherBoard, // BoardType;
   0,                        // NumberOfContainedObjectHandles;
@@ -198,10 +180,8 @@ SMBIOS_TABLE_TYPE2 mBoardInfoType2 = {
 CHAR8 *mBoardInfoType2Strings[] = {
   mSysInfoManufName,
   mSysInfoProductName,
-  mSysInfoProductName,
+  mSysInfoVersionName,
   mSysInfoSerial,
-  "None",
-  mSysInfoSKU,
   NULL
 };
 
@@ -214,7 +194,7 @@ SMBIOS_TABLE_TYPE3 mEnclosureInfoType3 = {
   MiscChassisEmbeddedPc,    // Type;
   2,                        // Version String
   3,                        // SerialNumber String
-  4,                        // AssetTag String
+  0,                        // AssetTag String
   ChassisStateSafe,         // BootupState;
   ChassisStateSafe,         // PowerSupplyState;
   ChassisStateSafe,         // ThermalState;
@@ -230,7 +210,6 @@ CHAR8 *mEnclosureInfoType3Strings[] = {
   mSysInfoManufName,
   mSysInfoProductName,
   mSysInfoSerial,
-  "None",
   NULL
 };
 
@@ -240,9 +219,9 @@ CHAR8 *mEnclosureInfoType3Strings[] = {
 SMBIOS_TABLE_TYPE4 mProcessorInfoType4 = {
   { EFI_SMBIOS_TYPE_PROCESSOR_INFORMATION, sizeof (SMBIOS_TABLE_TYPE4), 0},
   1,                    // Socket String
-  CentralProcessor,       // ProcessorType;                                   ///< The enumeration value from PROCESSOR_TYPE_DATA.
+  CentralProcessor,     // ProcessorType;                     ///< The enumeration value from PROCESSOR_TYPE_DATA.
   ProcessorFamilyIndicatorFamily2, // ProcessorFamily;        ///< The enumeration value from PROCESSOR_FAMILY2_DATA.
-  2,                    // ProcessorManufacture String;
+  2,                    // ProcessorManufacturer String;
   {                     // ProcessorId;
     {  // PROCESSOR_SIGNATURE
       0, //  ProcessorSteppingId:4;
@@ -306,9 +285,9 @@ SMBIOS_TABLE_TYPE4 mProcessorInfoType4 = {
   0,                      // L1CacheHandle;
   0,                      // L2CacheHandle;
   0,                      // L3CacheHandle;
-  4,                      // SerialNumber;
-  5,                      // AssetTag;
-  6,                      // PartNumber;
+  0,                      // SerialNumber;
+  0,                      // AssetTag;
+  0,                      // PartNumber;
   4,                      // CoreCount;
   4,                      // EnabledCoreCount;
   4,                      // ThreadCount;
@@ -316,13 +295,12 @@ SMBIOS_TABLE_TYPE4 mProcessorInfoType4 = {
   ProcessorFamilyARM,     // ARM Processor Family;
 };
 
+CHAR8 mCpuName[128] = "Unknown ARM CPU";
+
 CHAR8 *mProcessorInfoType4Strings[] = {
   "Socket",
-  "ARM",
-  "BCM2837 ARMv8",
-  "1.0",
-  "1.0",
-  "1.0",
+  "Broadcom",
+  mCpuName,
   NULL
 };
 
@@ -430,7 +408,7 @@ SMBIOS_TABLE_TYPE17 mMemDevInfoType17 = {
   0x0400,     // Size; // When bit 15 is 0: Size in MB
               // When bit 15 is 1: Size in KB, and continues in ExtendedSize
   MemoryFormFactorUnknown, // FormFactor;                     ///< The enumeration value from MEMORY_FORM_FACTOR.
-  0xff,       // DeviceSet;
+  0xFF,       // DeviceSet;
   1,          // DeviceLocator String
   2,          // BankLocator String
   MemoryTypeDram,         // MemoryType;                     ///< The enumeration value from MEMORY_DEVICE_TYPE.
@@ -618,6 +596,70 @@ BIOSInfoUpdateSmbiosType0 (
   VOID
   )
 {
+  UINT32 FirmwareRevision = 0;
+  EFI_STATUS Status = EFI_SUCCESS;
+  INTN   i;
+  INTN   State = 0;
+  INTN   Value[2];
+
+  // Populate the Firmware major and minor.
+  Status = mFwProtocol->GetFirmwareRevision (&FirmwareRevision);
+  if (EFI_ERROR (Status)) {
+    DEBUG ((DEBUG_ERROR, "Failed to get firmware revision: %r\n", Status));
+  } else {
+    // This expects Broadcom / The Raspberry Pi Foundation to switch to
+    // less nonsensical VideoCore firmware revisions in the future...
+    mBIOSInfoType0.EmbeddedControllerFirmwareMajorRelease =
+      (UINT8)((FirmwareRevision >> 16) & 0xFF);
+    mBIOSInfoType0.EmbeddedControllerFirmwareMinorRelease =
+      (UINT8)(FirmwareRevision & 0xFF);
+  }
+
+  // mBiosVersion, which is referenced in mBIOSInfoType0Strings,
+  // is not modified if the following call fails.
+  UnicodeStrToAsciiStrS ((CHAR16*)PcdGetPtr (PcdFirmwareVersionString),
+    mBiosVersion, sizeof (mBiosVersion));
+
+  // Look for a "x.y" numeric string anywhere in mBiosVersion and
+  // try to parse it to populate the BIOS major and minor.
+  for (i = 0; (i < AsciiStrLen (mBiosVersion)) && (State < 4); i++) {
+    switch (State) {
+    case 0:
+      if (!SMB_IS_DIGIT (mBiosVersion[i]))
+        break;
+      Value[0] = Value[1] = 0;
+      State++;
+      // Fall through
+    case 1:
+    case 3:
+      if (SMB_IS_DIGIT (mBiosVersion[i])) {
+        Value[State / 2] = (Value[State / 2] * 10) + (mBiosVersion[i] - '0');
+        if (Value[State / 2] > 255) {
+          while (SMB_IS_DIGIT (mBiosVersion[i + 1]))
+            i++;
+          // Reset our state (we may have something like "Firmware X83737.1 v1.23")
+          State = 0;
+        }
+      } else {
+        State++;
+      }
+      if (State != 2)
+        break;
+      // Fall through
+    case 2:
+      if ((mBiosVersion[i] == '.') && (SMB_IS_DIGIT (mBiosVersion[i + 1]))) {
+        State++;
+      } else {
+        State = 0;
+      }
+      break;
+    }
+  }
+  if ((State == 3) || (State == 4)) {
+    mBIOSInfoType0.SystemBiosMajorRelease = (UINT8)Value[0];
+    mBIOSInfoType0.SystemBiosMinorRelease = (UINT8)Value[1];
+  }
+
   LogSmbiosData ((EFI_SMBIOS_TABLE_HEADER*)&mBIOSInfoType0, mBIOSInfoType0Strings, NULL);
 }
 
@@ -631,7 +673,7 @@ I64ToHexString (
   IN UINT64 Value
   )
 {
-  static CHAR8 ItoH[] = { '0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F' };
+  STATIC CHAR8 ItoH[] = { '0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F' };
   UINT8 StringInx;
   INT8 NibbleInx;
 
@@ -664,34 +706,25 @@ SysInfoUpdateSmbiosType1 (
   UINT32 BoardRevision = 0;
   EFI_STATUS Status = EFI_SUCCESS;
   UINT64 BoardSerial = 0;
-  UINTN Prod = PROD_UNKNOWN;
-  UINTN Manu = MANU_UNKNOWN;
+  INTN Prod = -1;
+  INTN Manu = -1;
 
   Status = mFwProtocol->GetModelRevision (&BoardRevision);
   if (EFI_ERROR (Status)) {
     DEBUG ((DEBUG_ERROR, "Failed to get board model: %r\n", Status));
   } else {
     Prod = (BoardRevision >> 4) & 0xFF;
+    Manu = (BoardRevision >> 16) & 0x0F;
   }
 
-  if (Prod > PROD_KNOWN) {
-    Prod = PROD_UNKNOWN;
-  }
-  Prod -= PROD_BASE;
-  AsciiSPrint (mSysInfoProductName, sizeof (mSysInfoProductName),
-    "64-bit Raspberry Pi %a (rev. %x)", ProductNames[Prod], BoardRevision);
-
-  Manu = (BoardRevision >> 16) & 0xF;
-  if (Manu > MANU_KNOWN) {
-    Manu = MANU_UNKNOWN;
-  } else {
-    Manu += MANU_BASE;
-  }
-  AsciiSPrint (mSysInfoManufName, sizeof (mSysInfoManufName), "%a", ManufNames[Manu]);
+  AsciiStrCpyS (mSysInfoProductName, sizeof (mSysInfoProductName),
+    mFwProtocol->GetModelName (Prod));
+  AsciiStrCpyS (mSysInfoManufName, sizeof (mSysInfoManufName),
+    mFwProtocol->GetManufacturerName (Manu));
+  AsciiSPrint (mSysInfoVersionName, sizeof (mSysInfoVersionName),
+    "%X", BoardRevision);
 
-  I64ToHexString (mSysInfoSKU,
-    sizeof (mSysInfoSKU),
-    BoardRevision);
+  I64ToHexString (mSysInfoSKU, sizeof (mSysInfoSKU), BoardRevision);
 
   Status = mFwProtocol->GetSerial (&BoardSerial);
   if (EFI_ERROR (Status)) {
@@ -702,9 +735,11 @@ SysInfoUpdateSmbiosType1 (
 
   DEBUG ((DEBUG_ERROR, "Board Serial Number: %a\n", mSysInfoSerial));
 
-  mSysInfoType1.Uuid.Data1 = *(UINT32*)"RPi3";
-  mSysInfoType1.Uuid.Data2 = 0x0;
-  mSysInfoType1.Uuid.Data3 = 0x0;
+  mSysInfoType1.Uuid.Data1 = BoardRevision;
+  mSysInfoType1.Uuid.Data2 = 0;
+  mSysInfoType1.Uuid.Data3 = 0;
+  // Swap endianness, so that the serial is more user-friendly as a UUID
+  BoardSerial = SwapBytes64 (BoardSerial);
   CopyMem (mSysInfoType1.Uuid.Data4, &BoardSerial, sizeof (BoardSerial));
 
   LogSmbiosData ((EFI_SMBIOS_TABLE_HEADER*)&mSysInfoType1, mSysInfoType1Strings, NULL);
@@ -763,6 +798,8 @@ ProcessorInfoUpdateSmbiosType4 (
     DEBUG ((DEBUG_INFO, "Current CPU speed: %uHz\n", Rate));
   }
 
+  AsciiStrCpyS (mCpuName, sizeof (mCpuName), mFwProtocol->GetCpuName (-1));
+
   LogSmbiosData ((EFI_SMBIOS_TABLE_HEADER*)&mProcessorInfoType4, mProcessorInfoType4Strings, NULL);
 }
 
diff --git a/Platform/RaspberryPi/RPi3/Drivers/PlatformSmbiosDxe/PlatformSmbiosDxe.inf b/Platform/RaspberryPi/RPi3/Drivers/PlatformSmbiosDxe/PlatformSmbiosDxe.inf
index f7c74f7f5456..fde194ea5d90 100644
--- a/Platform/RaspberryPi/RPi3/Drivers/PlatformSmbiosDxe/PlatformSmbiosDxe.inf
+++ b/Platform/RaspberryPi/RPi3/Drivers/PlatformSmbiosDxe/PlatformSmbiosDxe.inf
@@ -48,3 +48,4 @@ [Depex]
 
 [Pcd]
   gArmTokenSpaceGuid.PcdSystemMemorySize
+  gEfiMdeModulePkgTokenSpaceGuid.PcdFirmwareVersionString
diff --git a/Platform/RaspberryPi/RPi3/RPi3.dsc b/Platform/RaspberryPi/RPi3/RPi3.dsc
index 2b9e619ad55c..138d3691dc56 100644
--- a/Platform/RaspberryPi/RPi3/RPi3.dsc
+++ b/Platform/RaspberryPi/RPi3/RPi3.dsc
@@ -309,7 +309,7 @@ [PcdsFixedAtBuild.common]
 
   gEmbeddedTokenSpaceGuid.PcdDmaDeviceOffset|0xc0000000
 
-  gEfiMdeModulePkgTokenSpaceGuid.PcdFirmwareVersionString|L"edk2-1.0"
+  gEfiMdeModulePkgTokenSpaceGuid.PcdFirmwareVersionString|L"EDK2-DEV"
 
 !if $(SECURE_BOOT_ENABLE) == TRUE
   # override the default values from SecurityPkg to ensure images from all sources are verified in secure boot
-- 
2.21.0.windows.1


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