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