[ros-diffs] [ion] 73741: [BOOTLIB]: Finish implementing Mmx86pMapMemoryRegions.

Author: ion
Date: Tue Feb  7 03:34:49 2017
New Revision: 73741

URL: http://svn.reactos.org/svn/reactos?rev=73741&view=rev
Log:
[BOOTLIB]: Finish implementing Mmx86pMapMemoryRegions.

Modified:
    trunk/reactos/boot/environ/lib/mm/i386/mmx86.c

Modified: trunk/reactos/boot/environ/lib/mm/i386/mmx86.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/boot/environ/lib/mm/i386/m…
==============================================================================
--- trunk/reactos/boot/environ/lib/mm/i386/mmx86.c	[iso-8859-1] (original)
+++ trunk/reactos/boot/environ/lib/mm/i386/mmx86.c	[iso-8859-1] Tue Feb  7 03:34:49 2017
@@ -677,6 +677,8 @@
     ULONGLONG Size;
     NTSTATUS Status;
     PVOID VirtualAddress;
+    BL_MEMORY_DESCRIPTOR_LIST FirmwareMdl;
+    PLIST_ENTRY Head, NextEntry;
 
     /* In phase 1 we don't initialize deferred mappings*/
     if (Phase == 1)
@@ -756,10 +758,59 @@
     /* In phase 1, also do UEFI mappings */
     if (Phase != 2)
     {
-        EfiPrintf(L"Phase 1 TODO UEFI mappings \r\n");
-    }
-
-    return STATUS_NOT_IMPLEMENTED;
+        /* Get the memory map */
+        MmMdInitializeListHead(&FirmwareMdl);
+        Status = MmFwGetMemoryMap(&FirmwareMdl, BL_MM_FLAG_REQUEST_COALESCING);
+        if (!NT_SUCCESS(Status))
+        {
+            return Status;
+        }
+
+        /* Iterate over it */
+        Head = FirmwareMdl.First;
+        NextEntry = Head->Flink;
+        while (NextEntry != Head)
+        {
+            /* Check if this is a UEFI-related descriptor, unless it's the self-map
page */
+            Descriptor = CONTAINING_RECORD(NextEntry, BL_MEMORY_DESCRIPTOR, ListEntry);
+            if (((Descriptor->Type == BlEfiBootMemory) ||
+                 (Descriptor->Type == BlEfiRuntimeMemory) ||
+                 (Descriptor->Type == BlLoaderMemory)) &&
+                ((Descriptor->BasePage << PAGE_SHIFT) !=
Mmx86SelfMapBase.QuadPart))
+            {
+                /* Identity-map it */
+                PhysicalAddress.QuadPart = Descriptor->BasePage << PAGE_SHIFT;
+                Status = Mmx86MapInitStructure((PVOID)((ULONG_PTR)Descriptor->BasePage
<< PAGE_SHIFT),
+                                               Descriptor->PageCount <<
PAGE_SHIFT,
+                                               PhysicalAddress);
+                if (!NT_SUCCESS(Status))
+                {
+                    return Status;
+                }
+            }
+
+            /* Move to the next descriptor */
+            NextEntry = NextEntry->Flink;
+        }
+
+        /* Reset */
+        NextEntry = Head->Flink;
+        while (NextEntry != Head)
+        {
+            /* Get the descriptor */
+            Descriptor = CONTAINING_RECORD(NextEntry, BL_MEMORY_DESCRIPTOR, ListEntry);
+
+            /* Skip to the next entry before we free */
+            NextEntry = NextEntry->Flink;
+
+            /* Remove and free it */
+            MmMdRemoveDescriptorFromList(&FirmwareMdl, Descriptor);
+            MmMdFreeDescriptor(Descriptor);
+        }
+    }
+
+    /* All library mappings identity mapped now */
+    return STATUS_SUCCESS;
 }
 
 NTSTATUS
@@ -1114,14 +1165,17 @@
 
         case BlPae:
 
+            /* We don't support PAE */
             Status = STATUS_NOT_SUPPORTED;
             break;
 
         default:
+
+            /* Invalid architecture type*/
             Status = STATUS_INVALID_PARAMETER;
             break;
     }
 
+    /* Back to caller */
     return Status;
-
-}
+}