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
22 if NORTHBRIDGE_INTEL_IVYBRIDGE
24 config DCACHE_RAM_BASE
27 config DCACHE_RAM_SIZE
30 config DCACHE_RAM_MRC_VAR_SIZE
33 config CPU_SPECIFIC_OPTIONS
43 bool "Enable VMX for virtualization"
46 Virtual Machine Extensions are provided in many x86 CPUs. These
47 provide various facilities for allowing a host OS to provide an
48 environment where potentially several guest OSes have only
49 limited access to the underlying hardware. This is achieved
50 without resorting to software trapping and/or instruction set
51 emulation (which would be very slow).
53 Intel's implementation of this is called VT-x. This option enables
54 VT-x this so that the OS that is booted by U-Boot can make use of
55 these facilities. If this option is not enabled, then the host OS
56 will be unable to support virtualisation, or it will run very