#
# Copyright 2014, NICTA
#
# This software may be distributed and modified according to the terms of
# the GNU General Public License version 2. Note that NO WARRANTY is provided.
# See "LICENSE_GPLv2.txt" for details.
#
# @TAG(NICTA_GPL)
#

menuconfig LIB_SEL4_VMM
    bool "seL4 VMM Library"
    depends on LIB_SEL4 && HAVE_LIBC && LIB_PCI && LIB_CPIO
    select HAVE_SEL4_LIBS
    default y
    help
        VMM library on sel4.

config VMM_VESA_FRAMEBUFFER
    bool "Expose VESA Frame Buffer"
    depends on LIB_SEL4_VMM
    default y
    help
        Support for mapping the VESA frame buffer frames into the guest OS.
        This option is useful for working around non-working video drivers otherwise,
        due to missing features or such.

config LIB_VMM_DEBUG
    bool "Enable VMM debug output"
    depends on LIB_SEL4_VMM
    default true

config LIB_VMM_DEBUG_LEVEL
    int "VMM Debug Output"
    depends on LIB_VMM_DEBUG
    default 3
    help
        Debug verbosity level.
        5 levels for debug messages:
           0: Always printout 
           1: Main entry point in a module
           2: 2nd level entry point in a module
           3: Main entry point of a function 
           4: Details inside a function

config LIB_VMM_VMX_TIMER_DEBUG
    bool "Use VMX Pre-Emption timer for debugging"
    depends on LIB_VMM_DEBUG
    default false
    help
        Will cause a regular vmexit to happen based on VMX pre-emption
        timer. At each exit the guest state will be printed out. This
        can be used to aid debugging when running a guest causes nothing
        to appear to happen

config LIB_VMM_VMX_TIMER_TIMEOUT
    int "Cycles between VMX timer pre-emptions"
    depends on LIB_VMM_VMX_TIMER_DEBUG
    default 4000
    help
        Cycles between timer exits. Time spent loading the VMCS context
        count, so setting this too low may result in the guest making
        no progress

config VMM_IGNORE_EPT_VIOLATION
    bool "Ignore EPT Violations"
    depends on LIB_SEL4_VMM
    default n
    help
        If set then EPT faults will be ignored and the guest will be resumed