2 # From Coreboot src/northbridge/intel/sandybridge/Kconfig
4 # Copyright (C) 2010 Google Inc.
6 # SPDX-License-Identifier: GPL-2.0
8 config NORTHBRIDGE_INTEL_IVYBRIDGE
10 select CACHE_MRC_BIN if HAVE_MRC
12 imply ENABLE_MRC_CACHE
13 imply ENV_IS_IN_SPI_FLASH
23 if NORTHBRIDGE_INTEL_IVYBRIDGE
25 config DCACHE_RAM_BASE
28 config DCACHE_RAM_SIZE
31 config DCACHE_RAM_MRC_VAR_SIZE
34 config CPU_SPECIFIC_OPTIONS
44 bool "Enable VMX for virtualization"
47 Virtual Machine Extensions are provided in many x86 CPUs. These
48 provide various facilities for allowing a host OS to provide an
49 environment where potentially several guest OSes have only
50 limited access to the underlying hardware. This is achieved
51 without resorting to software trapping and/or instruction set
52 emulation (which would be very slow).
54 Intel's implementation of this is called VT-x. This option enables
55 VT-x this so that the OS that is booted by U-Boot can make use of
56 these facilities. If this option is not enabled, then the host OS
57 will be unable to support virtualisation, or it will run very