GRUB_TIMEOUT=5
GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)"
GRUB_DEFAULT=saved
GRUB_DISABLE_SUBMENU=true
GRUB_TERMINAL_OUTPUT="gfxterm"
GRUB_CMDLINE_LINUX="rd.luks.uuid=luks-878dd9b7-fc12-4283-8802-999f47aab5ab rd.lvm.lv=qubes_dom0/root vconsole.font=latarcyrheb-sun16 rd.lvm.lv=qubes_dom0/swap $([ -x /usr/sbin/rhcrashkernel-param ] && /usr/sbin/rhcrashkernel-param || :) modprobe=xen-pciback.passthrough=1 xen-pciback.permissive xen-pciback.hide=(04:00.0)(04:00.1)(00:14.2)(06:00.0) rhgb quiet"
GRUB_CMDLINE_XEN_DEFAULT="console=none dom0_max_vcpus=2 dom0_vcpus_pin iommu=pt iommu=1 swiotlb=force watchdog e820-mtrr-clip=false extra_guest_irqs=,18 lapic x2apic=false irqpoll amd_iommu_dump debug,verbose apic_verbosity=debug e820-verbose=true ivrs_ioapic[2]=00:14.0 loglvl=all guest_loglvl=all unrestricted_guest=1 msi=1"
#GRUB_CMDLINE_LINUX_DEFAULT="radeon.blacklist=1 radeon.modeset=0 rd.driver.blacklist=radeon rd.blacklist=radeon"
GRUB_CMDLINE_LINUX_DEFAULT=""
GRUB_DISABLE_RECOVERY="true"
GRUB_THEME="/boot/grub2/themes/system/theme.txt"

##
#dom0_max_vcpus=2  <=    makes sure you allocate resources only for the actual number of vcpus you need in dom0 (2 cpus)
#dom0_vcpus_pin    <=    pin dom0 vcpus to their respective pcpus
#iommu=pt          <=    IOMMU passthrough, can improve performance of I/O devices on host
#iommu=1           <=    enable i/o virtualization (IOMMU/VT-d), which is disabled by default
#swiotlb=force     <=    force using of bounce buffers even if they wouldn't be automatically used by the kernel
#watchdog          <=    run an NMI watchdog on each processor, if a processor is stuck longer then the 'watchdog_timeout' a panic occurs
#e820-mtrr-clip=false  <=    specifies if RAM should be clipped to the highest cacheable MTRR.
#lapic             <=    force the use of the local APIC on a uniprocessor system, even if left disabled by the BIOS
#x2apic=false      <=    do not permit the x2apic setup for SMP environments
#irqpoll           <=    when an interrupt is not handled search all handlers for it. Also check all handlers each timer interrupt. Intended to get systems with badly broken firmware running.
#amd_iommu_dump debug,verbose    <=    enable AMD IOMMU driver options to dump the APIC tables for AMD IOMMU during IOMMU initialization
#apic_verbosity=debug   <=    increase the verbosity of the APIC code from the default value.
#e820-verbose=true      <=    enables verbose output when processing e820 information and applying clipping
#ivrs_ioapic[2]=00:14.0 <=    force the use of [<seg>:]<bus>:<device>.<func> as device ID of IO-APIC <ioapic> instead of the one specified by the IVHD sub-tables of the IVRS ACPI table.
#loglvl=all             <=    set the logging level for Xen (all = error, warning, info, debug)
#guest_loglvl=all       <=    set the logging level for Xen guests (all = error, warning, info, debug)
#unrestricted_guest=1   <=    (not 100% sure here, need to do more testing with this option)
#msi=1                  <=    force Xen to use PCI-MSI (Message Signal Interrupt)
#
##
# kernel command-line parameters @ https://www.kernel.org/doc/Documentation/kernel-parameters.txt
#
# Xen command-line parameters @ http://xenbits.xenproject.org/docs/unstable/misc/xen-command-line.html
#   -OR- http://xenbits.xen.org/docs/4.4-testing/misc/xen-command-line.html
##