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/f... ============================================================================== --- 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@sginet.com + * Copyright (C) 2005 Alex Ionescu alex@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 ------------------------------------------------------------------------------ svn:eol-style = native
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tkreuzer＠svn.reactos.org