further developed GetMemoryMap application

4 files changed, 13 insertions, 86 deletions

diff --git a/memtestEDK/Memtest/GetMemoryMap/GetMemoryMap.c b/memtestEDK/Memtest/GetMemoryMap/GetMemoryMap.c
index 926849c..3300552 100644
--- a/memtestEDK/Memtest/GetMemoryMap/GetMemoryMap.c
+++ b/memtestEDK/Memtest/GetMemoryMap/GetMemoryMap.c
@@ -1,7 +1,3 @@
-#include <stdio.h>
-//#include <stdlib.h>
-
-
 #include <Uefi.h>
 #include <Library/UefiLib.h>
 #include <Library/UefiApplicationEntryPoint.h>
@@ -33,41 +29,6 @@ const CHAR16 *memory_types[] =
     L"EfiPalCode",
 };
 
-void printToFile() {
-   /* Variable to store user content */
-    char data[DATA_SIZE];
-
-    /* File pointer to hold reference to our file */
-    FILE * fPtr;
-
-
-    /* 
-     * Open file in w (write) mode. 
-     * "data/file1.txt" is complete path to create file
-     */
-    fPtr = fopen("data/file1.txt", "w");
-
-
-    /* fopen() return NULL if last operation was unsuccessful */
-    if(fPtr == NULL)
-    {
-        /* File not created hence exit */
-        printf("Unable to create file.\n");
-    }
-
-
-    /* Write data to file */
-    fputs(data, fPtr);
-
-
-    /* Close file to save file data */
-    fclose(fPtr);
-
-
-    /* Success message */
-    printf("File created and saved successfully. :) \n");
-}
-
 EFI_STATUS
 EFIAPI
 UefiMain (
@@ -75,7 +36,8 @@ UefiMain (
   IN EFI_SYSTEM_TABLE  *SystemTable
   )
 {
-  Print(L"Application to get Memory Map\n");
+
+  Print(L"Application to get Memory Map\n\n");
 
   UINTN MemoryMapSize = 0;
   EFI_MEMORY_DESCRIPTOR *memoryMap = NULL;
@@ -86,65 +48,30 @@ UefiMain (
 
   EFI_BOOT_SERVICES *bs = SystemTable->BootServices;
 
+  /* Allocate the buffer for the MemoryMap. As the memory map changes every time we query it, the
+  size also may change. So we allocate a new buffer until it has sufficient space for the MemoryMap.
+  */
   Status = bs->GetMemoryMap(&MemoryMapSize, memoryMap, &LocalMapKey, &DescriptorSize, &DescriptorVersion);
-/*  Print(L"MemoryMapSize: %d\n", MemoryMapSize); // size needed if the buffer was to small
-  Print(L"memoryMap pointer: %p\n", memoryMap);
-  Print(L"This time through the memory map loop, status = %r\n",Status);*/
   do {
-/*    Print(L"Buffer was too small!\n");
-    Print(L"Trying with size %d\n", (UINTN) (MemoryMapSize + 1) );
-    Print(L"MemoryMapSize: %d\n", MemoryMapSize); // size needed if the buffer was to small
-    Print(L"MemoryMap pointer: %p\n", memoryMap);*/
-
     Status = bs->AllocatePool(EfiLoaderData, (UINTN) (MemoryMapSize + 1) , (void **)&memoryMap);
-/*
-    Print(L"Status = %r\n", Status);
-    Print(L"MemoryMap pointer: %p\n", memoryMap);
-*/
     Status = bs->GetMemoryMap(&MemoryMapSize, memoryMap, &LocalMapKey, &DescriptorSize, &DescriptorVersion);
-/*    Print(L"Status = %r\n", Status);
-    Print(L"After GetMemoryMap\n");
-    Print(L"MemoryMapSize: %d\n", MemoryMapSize); // size needed if the buffer was to small
-    Print(L"memoryMap pointer: %p\n", memoryMap);
-    Print(L"This time through the memory map loop, status = %r\n",Status);*/
   } while (Status == EFI_BUFFER_TOO_SMALL);
 
   if (Status != EFI_SUCCESS) {
     Print(L"Status = %r\n", Status);
+    return Status;
   }
 
-
-  Print(L"After GetMemoryMap\n");
-  Print(L"MemoryMapSize: %d\n", MemoryMapSize); // size needed if the buffer was to small
-  Print(L"MemoryMap pointer: %p\n", memoryMap);
-
-  EFI_MEMORY_DESCRIPTOR firstElement = *memoryMap;
   Print(L"memoryMap location: %p\n", memoryMap);
-  Print(L"Size of first element: %d\n", sizeof(firstElement));
-  Print(L"Type: %d\n", firstElement.Type);
-  Print(L"PhysicalStart: %p\n", firstElement.PhysicalStart);
-  Print(L"VirtualStart: %p\n", firstElement.VirtualStart);
-  Print(L"NumberOfPages: %d\n", firstElement.NumberOfPages);
-  Print(L"Attribute: %d\n", firstElement.Attribute);
-
-
-  EFI_MEMORY_DESCRIPTOR secondElement = *(memoryMap + 40);
-  Print(L"memoryMap location: %p\n", memoryMap);
-  Print(L"Size of first element: %d\n", sizeof(secondElement));
-  Print(L"Type: %d\n", secondElement.Type);
-  Print(L"PhysicalStart: %p\n", secondElement.PhysicalStart);
-  Print(L"VirtualStart: %p\n", secondElement.VirtualStart);
-  Print(L"NumberOfPages: %d\n", secondElement.NumberOfPages);
-  Print(L"Attribute: %d\n", secondElement.Attribute);
+  //Print(L"Size of first element (and all other elements): %d\n", sizeof(secondElement));
+  Print(L"DescriptorSize: %d\n", DescriptorSize);
+  Print(L"DescriptorVersion: %d\n\n\n", DescriptorVersion);
 
   uint8_t *startOfMemoryMap = (uint8_t *)memoryMap;
   uint8_t *endOfMemoryMap = startOfMemoryMap + MemoryMapSize;
-
   uint8_t *offset = startOfMemoryMap;
-
   uint32_t counter = 0;
   uint64_t totalPages = 0;
-
   EFI_MEMORY_DESCRIPTOR *desc = NULL;
 
   while(offset < endOfMemoryMap) {
@@ -161,11 +88,11 @@ UefiMain (
 
     offset += DescriptorSize;
     counter++;
-
-    uint64_t MemoryMapSize = totalPages * 4096;
-    Print(L"Memory detected: %d MB\n", MemoryMapSize / 1024 / 1024);
   }
 
+  
+  uint64_t MemoryMapSize = totalPages * 4096;
+  Print(L"Memory detected: %d MB\n\n", MemoryMapSize / 1024 / 1024);
 
   return EFI_SUCCESS;
 }
diff --git a/memtestEDK/Memtest/GetMemoryMap/TODO b/memtestEDK/Memtest/GetMemoryMap/TODO
deleted file mode 100644
index e69de29..0000000
--- a/memtestEDK/Memtest/GetMemoryMap/TODO
+++ /dev/null
diff --git a/memtestEDK/Memtest/ProtocolInformation/TODO b/memtestEDK/Memtest/ProtocolInformation/TODO
deleted file mode 100644
index e69de29..0000000
--- a/memtestEDK/Memtest/ProtocolInformation/TODO
+++ /dev/null
diff --git a/memtestEDK/Memtest/run.sh b/memtestEDK/Memtest/run.sh
index 6d98a65..742efca 100755
--- a/memtestEDK/Memtest/run.sh
+++ b/memtestEDK/Memtest/run.sh
@@ -3,7 +3,7 @@
 (cd ..;. edksetup.sh BaseTools; build -a X64 -p MdeModulePkg/MdeModulePkg.dsc)
 
 if [ $? -ne 0 ]; then exit 1; fi
-(cd ..; cp Build/MdeModule/DEBUG_GCC5/X64/ProtocolInformation.efi ../../git/working_dir/memtest86/test_code/hda-contents/)
+(cd ..; cp Build/MdeModule/DEBUG_GCC5/X64/ConfigurationTable.efi ../../git/working_dir/memtest86/test_code/hda-contents/)
 
 if [ $? -ne 0 ]; then exit 1; fi
 (cd ../../../git/working_dir/memtest86/test_code; sudo ./run.sh )