[ros-diffs] [tkreuzer] 34728: forgot this one: a stubbed out loader.c copied from i386
tkreuzer at svn.reactos.org
tkreuzer at svn.reactos.org
Thu Jul 24 04:30:36 CEST 2008
Author: tkreuzer
Date: Wed Jul 23 21:30:36 2008
New Revision: 34728
URL: http://svn.reactos.org/svn/reactos?rev=34728&view=rev
Log:
forgot this one: a stubbed out loader.c copied from i386
Added:
branches/ros-amd64-bringup/reactos/boot/freeldr/freeldr/arch/amd64/loader.c (with props)
Added: branches/ros-amd64-bringup/reactos/boot/freeldr/freeldr/arch/amd64/loader.c
URL: http://svn.reactos.org/svn/reactos/branches/ros-amd64-bringup/reactos/boot/freeldr/freeldr/arch/amd64/loader.c?rev=34728&view=auto
==============================================================================
--- branches/ros-amd64-bringup/reactos/boot/freeldr/freeldr/arch/amd64/loader.c (added)
+++ branches/ros-amd64-bringup/reactos/boot/freeldr/freeldr/arch/amd64/loader.c [iso-8859-1] Wed Jul 23 21:30:36 2008
@@ -1,0 +1,216 @@
+/*
+ * FreeLoader
+ * Copyright (C) 1998-2003 Brian Palmer <brianp at sginet.com>
+ * Copyright (C) 2005 Alex Ionescu <alex at relsoft.net>
+ *
+ * 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
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * 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.
+ */
+#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 KernelBase;
+extern ROS_KERNEL_ENTRY_POINT KernelEntryPoint;
+/* FUNCTIONS *****************************************************************/
+
+/*++
+ * FrLdrStartup
+ * INTERNAL
+ *
+ * Prepares the system for loading the Kernel.
+ *
+ * Params:
+ * Magic - Multiboot Magic
+ *
+ * Returns:
+ * None.
+ *
+ * Remarks:
+ * None.
+ *
+ *--*/
+VOID
+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
+}
+
Propchange: branches/ros-amd64-bringup/reactos/boot/freeldr/freeldr/arch/amd64/loader.c
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