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Oops, forget this file

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svn path=/trunk/; revision=1729
This commit is contained in:
David Welch 2001-03-25 11:48:18 +00:00
parent 51f1b4ac50
commit c2d9004a56
2 changed files with 108 additions and 5 deletions
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10
reactos/ntoskrnl/ke/i386/v86m.c
View file

@ -32,7 +32,7 @@
#include <internal/i386/segment.h>
#include <string.h>
//#define NDEBUG
#define NDEBUG
#include <internal/debug.h>
/* GLOBALS *******************************************************************/
@ -283,10 +283,10 @@ KeV86Exception(ULONG ExceptionNr, PKTRAP_FRAME Tf, ULONG address)
Ip = (PUCHAR)((Tf->Cs & 0xFFFF) * 16 + (Tf->Eip & 0xFFFF));
if (ExceptionNr != 14)
{
DbgPrint("ExceptionNr %d Ip[0] %x Ip[1] %x Ip[2] %x Ip[3] %x Tf->Cs %x "
"Tf->Eip %x\n", ExceptionNr, Ip[0], Ip[1], Ip[2], Ip[3], Tf->Cs,
Tf->Eip);
DbgPrint("VTf %x VTf->regs %x\n", VTf, VTf->regs);
DPRINT("ExceptionNr %d Ip[0] %x Ip[1] %x Ip[2] %x Ip[3] %x Tf->Cs %x "
"Tf->Eip %x\n", ExceptionNr, Ip[0], Ip[1], Ip[2], Ip[3], Tf->Cs,
Tf->Eip);
DPRINT("VTf %x VTf->regs %x\n", VTf, VTf->regs);
}
if (ExceptionNr == 6 &&
memcmp(Ip, VTf->regs->RecoveryInstruction, 4) == 0 &&

103
reactos/subsys/csrss/video.c Normal file
View file

@ -0,0 +1,103 @@
#include <ddk/ntddk.h>
ULONG
InitializeVideoAddressSpace(VOID)
{
OBJECT_ATTRIBUTES ObjectAttributes;
UNICODE_STRING PhysMemName;
NTSTATUS Status;
HANDLE PhysMemHandle;
PVOID BaseAddress;
LARGE_INTEGER Offset;
ULONG ViewSize;
PUCHAR TextMap;
CHAR IVT[1024];
/*
* Open the physical memory section
*/
RtlInitUnicodeString(&PhysMemName, L"\\Device\\PhysicalMemory");
InitializeObjectAttributes(&ObjectAttributes,
&PhysMemName,
0,
NULL,
NULL);
Status = NtOpenSection(&PhysMemHandle, SECTION_ALL_ACCESS,
&ObjectAttributes);
if (!NT_SUCCESS(Status))
{
DbgPrint("Couldn't open \\Device\\PhysicalMemory\n");
return(0);
}
/*
* Map the BIOS and device registers into the address space
*/
Offset.QuadPart = 0xa0000;
ViewSize = 0x100000 - 0xa0000;
BaseAddress = (PVOID)0xa0000;
Status = NtMapViewOfSection(PhysMemHandle,
NtCurrentProcess(),
&BaseAddress,
0,
8192,
&Offset,
&ViewSize,
ViewUnmap,
0,
PAGE_EXECUTE_READWRITE);
if (!NT_SUCCESS(Status))
{
DbgPrint("Couldn't map physical memory (%x)\n", Status);
NtClose(PhysMemHandle);
return(0);
}
NtClose(PhysMemHandle);
if (BaseAddress != (PVOID)0xa0000)
{
DbgPrint("Couldn't map physical memory at the right address "
"(was %x)\n", BaseAddress);
return(0);
}
/*
* Map some memory to use for the non-BIOS parts of the v86 mode address
* space
*/
BaseAddress = (PVOID)0x1;
ViewSize = 0xa0000 - 0x1000;
Status = ZwAllocateVirtualMemory(NtCurrentProcess(),
&BaseAddress,
0,
&ViewSize,
MEM_COMMIT,
PAGE_EXECUTE_READWRITE);
if (!NT_SUCCESS(Status))
{
DbgPrint("Failed to allocate virtual memory (Status %x)\n", Status);
return(0);
}
if (BaseAddress != (PVOID)0x0)
{
DbgPrint("Failed to allocate virtual memory at right address "
"(was %x)\n", BaseAddress);
return(0);
}
/*
* Get the real mode IVT from the kernel
*/
Status = NtVdmControl(0, IVT);
if (!NT_SUCCESS(Status))
{
DbgPrint("NtVdmControl failed (status %x)\n", Status);
return(0);
}
/*
* Copy the real mode IVT into the right place
*/
memcpy((PVOID)0x0, IVT, 1024);
return(1);
}