4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IA-32/x64 AsmDisablePaging32()
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync This program and the accompanying materials
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync are licensed and made available under the terms and conditions of the BSD License
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync which accompanies this distribution. The full text of the license may be found at
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Disables the 32-bit paging mode on the CPU.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Disables the 32-bit paging mode on the CPU and returns to 32-bit protected
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync mode. This function assumes the current execution mode is 32-paged protected
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync mode. This function is only available on IA-32. After the 32-bit paging mode
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync is disabled, control is transferred to the function specified by EntryPoint
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync using the new stack specified by NewStack and passing in the parameters
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync specified by Context1 and Context2. Context1 and Context2 are optional and
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync may be NULL. The function EntryPoint must never return.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync If the current execution mode is not 32-bit paged mode, then ASSERT().
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync If EntryPoint is NULL, then ASSERT().
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync If NewStack is NULL, then ASSERT().
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync There are a number of constraints that must be followed before calling this
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync 1) Interrupts must be disabled.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync 2) The caller must be in 32-bit paged mode.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync 3) CR0, CR3, and CR4 must be compatible with 32-bit paged mode.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync 4) CR3 must point to valid page tables that guarantee that the pages for
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync this function and the stack are identity mapped.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param EntryPoint A pointer to function to call with the new stack after
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync paging is disabled.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param Context1 A pointer to the context to pass into the EntryPoint
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync function as the first parameter after paging is disabled.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param Context2 A pointer to the context to pass into the EntryPoint
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync function as the second parameter after paging is
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param NewStack A pointer to the new stack to use for the EntryPoint
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync function after paging is disabled.