[ros-arm-bringup] 34204: - Add RAM disk support to FreeLDR and to the NTLDR emulation layer in the kernel for non-clean archs (ppc and x86)

Author: ros-arm-bringup
Date: Sun Jun 29 21:42:12 2008
New Revision: 34204

URL: http://svn.reactos.org/svn/reactos?rev=34204&view=rev
Log:
- Add RAM disk support to FreeLDR and to the NTLDR emulation layer in the kernel for
non-clean archs (ppc and x86)

Modified:
    trunk/reactos/boot/freeldr/freeldr/reactos/reactos.c
    trunk/reactos/include/reactos/rosldr.h
    trunk/reactos/ntoskrnl/ke/freeldr.c

Modified: trunk/reactos/boot/freeldr/freeldr/reactos/reactos.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/boot/freeldr/freeldr/react…
==============================================================================
--- trunk/reactos/boot/freeldr/freeldr/reactos/reactos.c [iso-8859-1] (original)
+++ trunk/reactos/boot/freeldr/freeldr/reactos/reactos.c [iso-8859-1] Sun Jun 29 21:42:12
2008
@@ -601,6 +601,8 @@
 	LoaderBlock.ModsCount = 0;
 	LoaderBlock.ModsAddr = reactos_modules;
     LoaderBlock.DrivesAddr = reactos_arc_disk_info;
+    LoaderBlock.RdAddr = (ULONG)gRamDiskBase;
+    LoaderBlock.RdLength = gRamDiskSize;
     LoaderBlock.MmapLength = (unsigned
long)MachGetMemoryMap((PBIOS_MEMORY_MAP)reactos_memory_map, 32) * sizeof(memory_map_t);
     if (LoaderBlock.MmapLength)
     {

Modified: trunk/reactos/include/reactos/rosldr.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/include/reactos/rosldr.h?r…
==============================================================================
--- trunk/reactos/include/reactos/rosldr.h [iso-8859-1] (original)
+++ trunk/reactos/include/reactos/rosldr.h [iso-8859-1] Sun Jun 29 21:42:12 2008
@@ -35,6 +35,8 @@
     UCHAR Syms[12];
     ULONG MmapLength;
     ULONG MmapAddr;
+    ULONG RdLength;
+    ULONG RdAddr;
     ULONG DrivesCount;
     PARC_DISK_SIGNATURE DrivesAddr;
     ULONG ConfigTable;

Modified: trunk/reactos/ntoskrnl/ke/freeldr.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/ke/freeldr.c?rev=…
==============================================================================
--- trunk/reactos/ntoskrnl/ke/freeldr.c [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/ke/freeldr.c [iso-8859-1] Sun Jun 29 21:42:12 2008
@@ -1148,6 +1148,21 @@
                               KERNEL_DESCRIPTOR_PAGE(RosEntry->ModEnd),
                               0,
                               &Base);
+    
+    //
+    // Check if we have a ramdisk
+    //
+    if ((RosLoaderBlock->RdAddr) && (RosLoaderBlock->RdLength))
+    {
+        //
+        // Build a descriptor for it
+        //
+        KiRosAllocateNtDescriptor(LoaderXIPRom,
+                                  KERNEL_DESCRIPTOR_PAGE(RosLoaderBlock->RdAddr),
+                                  (RosLoaderBlock->RdLength + PAGE_SIZE - 1) >>
PAGE_SHIFT,
+                                  0,
+                                  &Base);
+    }
 
     /* Setup command line */
     LoaderBlock->LoadOptions = BldrCommandLine;