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- Add RAM disk support to FreeLDR and to the NTLDR emulation layer in the kernel for non-clean archs (ppc and x86)

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svn path=/trunk/; revision=34204
This commit is contained in:
ReactOS Portable Systems Group 2008-06-30 02:42:12 +00:00
parent 96f1392d7b
commit e7756d443d
3 changed files with 19 additions and 0 deletions
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2
reactos/boot/freeldr/freeldr/reactos/reactos.c
View file

@ -601,6 +601,8 @@ LoadAndBootReactOS(PCSTR OperatingSystemName)
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)
{

2
reactos/include/reactos/rosldr.h
View file

@ -35,6 +35,8 @@ typedef struct _ROS_LOADER_PARAMETER_BLOCK
UCHAR Syms[12];
ULONG MmapLength;
ULONG MmapAddr;
ULONG RdLength;
ULONG RdAddr;
ULONG DrivesCount;
PARC_DISK_SIGNATURE DrivesAddr;
ULONG ConfigTable;

15
reactos/ntoskrnl/ke/freeldr.c
View file

@ -1149,6 +1149,21 @@ KiRosFrldrLpbToNtLpb(IN PROS_LOADER_PARAMETER_BLOCK RosLoaderBlock,
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;
strcpy(BldrCommandLine, RosLoaderBlock->CommandLine);