/*
* FreeLoader
- * Copyright (C) 1998-2003 Brian Palmer <brianp@sginet.com>
- * Copyright (C) 2005 Alex Ionescu <alex@relsoft.net>
+ * Copyright (C) 2008 - 2009 Timo Kreuzer (timo.kreuzer@reactor.org)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
-#define _NTSYSTEM_
#include <freeldr.h>
#define NDEBUG
#include <debug.h>
-#undef DbgPrint
/* Page Directory and Tables for non-PAE Systems */
-extern PAGE_DIRECTORY_X86 startup_pagedirectory;
-extern PAGE_DIRECTORY_X86 lowmem_pagetable;
-extern PAGE_DIRECTORY_X86 kernel_pagetable;
-extern PAGE_DIRECTORY_X86 hyperspace_pagetable;
-extern PAGE_DIRECTORY_X86 apic_pagetable;
-extern PAGE_DIRECTORY_X86 kpcr_pagetable;
-extern PAGE_DIRECTORY_X86 kuser_pagetable;
+extern ULONG_PTR NextModuleBase;
extern ULONG_PTR KernelBase;
+ULONG_PTR GdtBase, IdtBase, TssBase;
extern ROS_KERNEL_ENTRY_POINT KernelEntryPoint;
+
+PPAGE_DIRECTORY_AMD64 pPML4;
+PVOID pIdt, pGdt;
+
/* FUNCTIONS *****************************************************************/
+void
+EnableA20()
+{
+ /* Already done */
+}
+
/*++
* FrLdrStartup
* INTERNAL
NTAPI
FrLdrStartup(ULONG Magic)
{
- ASSERT(FALSE);
-#if 0
- /* Disable Interrupts */
- _disable();
-
- /* Re-initalize EFLAGS */
- Ke386EraseFlags();
-
- /* Initialize the page directory */
- FrLdrSetupPageDirectory();
-
- /* Initialize Paging, Write-Protection and Load NTOSKRNL */
- FrLdrSetupPae(Magic);
-#endif
-}
-
-/*++
- * FrLdrSetupPae
- * INTERNAL
- *
- * Configures PAE on a MP System, and sets the PDBR if it's supported, or if
- * the system is UP.
- *
- * Params:
- * Magic - Multiboot Magic
- *
- * Returns:
- * None.
- *
- * Remarks:
- * None.
- *
- *--*/
-VOID
-FASTCALL
-FrLdrSetupPae(ULONG Magic)
-{
-#if 0
- ULONG_PTR PageDirectoryBaseAddress = (ULONG_PTR)&startup_pagedirectory;
-
- /* Set the PDBR */
- __writecr3(PageDirectoryBaseAddress);
-
- /* Enable Paging and Write Protect*/
- __writecr0(__readcr0() | X86_CR0_PG | X86_CR0_WP);
-
- /* Jump to Kernel */
- (*KernelEntryPoint)(Magic, &LoaderBlock);
-#endif
-}
-
-/*++
- * FrLdrSetupPageDirectory
- * INTERNAL
- *
- * Sets up the ReactOS Startup Page Directory.
- *
- * Params:
- * None.
- *
- * Returns:
- * None.
- *
- * Remarks:
- * We are setting PDEs, but using the equvivalent (for our purpose) PTE structure.
- * As such, please note that PageFrameNumber == PageEntryNumber.
- *
- *--*/
-VOID
-FASTCALL
-FrLdrSetupPageDirectory(VOID)
-{
-#if 0
- PPAGE_DIRECTORY_X86 PageDir;
- ULONG KernelPageTableIndex;
- ULONG i;
-
- /* Get the Kernel Table Index */
- KernelPageTableIndex = KernelBase >> PDE_SHIFT;
-
- /* Get the Startup Page Directory */
- PageDir = (PPAGE_DIRECTORY_X86)&startup_pagedirectory;
-
- /* Set up the Low Memory PDE */
- PageDir->Pde[LowMemPageTableIndex].Valid = 1;
- PageDir->Pde[LowMemPageTableIndex].Write = 1;
- PageDir->Pde[LowMemPageTableIndex].PageFrameNumber = PaPtrToPfn(lowmem_pagetable);
-
- /* Set up the Kernel PDEs */
- PageDir->Pde[KernelPageTableIndex].Valid = 1;
- PageDir->Pde[KernelPageTableIndex].Write = 1;
- PageDir->Pde[KernelPageTableIndex].PageFrameNumber = PaPtrToPfn(kernel_pagetable);
- PageDir->Pde[KernelPageTableIndex + 1].Valid = 1;
- PageDir->Pde[KernelPageTableIndex + 1].Write = 1;
- PageDir->Pde[KernelPageTableIndex + 1].PageFrameNumber = PaPtrToPfn(kernel_pagetable + 4096);
-
- /* Set up the Startup PDE */
- PageDir->Pde[StartupPageTableIndex].Valid = 1;
- PageDir->Pde[StartupPageTableIndex].Write = 1;
- PageDir->Pde[StartupPageTableIndex].PageFrameNumber = PaPtrToPfn(startup_pagedirectory);
-
- /* Set up the Hyperspace PDE */
- PageDir->Pde[HyperspacePageTableIndex].Valid = 1;
- PageDir->Pde[HyperspacePageTableIndex].Write = 1;
- PageDir->Pde[HyperspacePageTableIndex].PageFrameNumber = PaPtrToPfn(hyperspace_pagetable);
-
- /* Set up the HAL PDE */
- PageDir->Pde[HalPageTableIndex].Valid = 1;
- PageDir->Pde[HalPageTableIndex].Write = 1;
- PageDir->Pde[HalPageTableIndex].PageFrameNumber = PaPtrToPfn(apic_pagetable);
-
- /* Set up Low Memory PTEs */
- PageDir = (PPAGE_DIRECTORY_X86)&lowmem_pagetable;
- for (i=0; i<1024; i++)
- {
- PageDir->Pde[i].Valid = 1;
- PageDir->Pde[i].Write = 1;
- PageDir->Pde[i].Owner = 1;
- PageDir->Pde[i].PageFrameNumber = PaToPfn(i * PAGE_SIZE);
- }
-
- /* Set up Kernel PTEs */
- PageDir = (PPAGE_DIRECTORY_X86)&kernel_pagetable;
- for (i=0; i<1536; i++)
- {
- PageDir->Pde[i].Valid = 1;
- PageDir->Pde[i].Write = 1;
- PageDir->Pde[i].PageFrameNumber = PaToPfn(KERNEL_BASE_PHYS + i * PAGE_SIZE);
- }
-
- /* Setup APIC Base */
- PageDir = (PPAGE_DIRECTORY_X86)&apic_pagetable;
- PageDir->Pde[0].Valid = 1;
- PageDir->Pde[0].Write = 1;
- PageDir->Pde[0].CacheDisable = 1;
- PageDir->Pde[0].WriteThrough = 1;
- PageDir->Pde[0].PageFrameNumber = PaToPfn(HAL_BASE);
- PageDir->Pde[0x200].Valid = 1;
- PageDir->Pde[0x200].Write = 1;
- PageDir->Pde[0x200].CacheDisable = 1;
- PageDir->Pde[0x200].WriteThrough = 1;
- PageDir->Pde[0x200].PageFrameNumber = PaToPfn(HAL_BASE + KERNEL_BASE_PHYS);
-
- /* Setup KUSER_SHARED_DATA Base */
- PageDir->Pde[0x1F0].Valid = 1;
- PageDir->Pde[0x1F0].Write = 1;
- PageDir->Pde[0x1F0].PageFrameNumber = 2;
-
- /* Setup KPCR Base*/
- PageDir->Pde[0x1FF].Valid = 1;
- PageDir->Pde[0x1FF].Write = 1;
- PageDir->Pde[0x1FF].PageFrameNumber = 1;
-
- /* Zero shared data */
- RtlZeroMemory((PVOID)(2 << MM_PAGE_SHIFT), PAGE_SIZE);
-#endif
+ DbgPrint("ReactOS loader is unsupported! Halting.\n", KernelEntryPoint);
+ for(;;);
}
projects / reactos.git / blobdiff