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