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#1 2013-07-10 15:09:38
- abarahc
- Member
- Registered: 2010-04-30
- Posts: 128
xen vga passthrough
Hello everybody! Sorry if I posted in the wrong board, but I really did not know where it would fit.
Well, I've been on the wiki and read all about xen. There is no specific instruction on how I use the vga passthrough. So I went on the Xen wiki. I managed some clues of what to do. One is related to flags that should enable to run Xen.
http://wiki.xen.org/wiki/Mainline_Linux_Kernel_Configs
So I went on the arch wiki again. I read about how could recompile the kernel and install the new version of the same by pacman. Flags activated, many hours of compilation. The build of the new kernel was installed and ready.
I installed the package XEN located in AUR. I noticed that it downloads a kernel with XEN name. There in the arch wiki as well as in the xen wiki, which is necessary to modify the grub boot to do this special XEN kernel. I made the change. Researched how the procedure could be done to vga passthrough, but it did not work.
So i realized that there are two possibilities to run a virtual machine.
1 - Using XEND
and the other used when boot the XEN kernel.
2 - (xenstored, xendomaind, and some others I've forgotten at the moment)
Option 2 is not possible to use it when using the vanilla kernel (even after the change of flags) but in the arch wiki is saying that the vanilla kernel is already suffcient to run xen, but because the xen package in AUR downloads an extra called xen kernel?
A i'm using a notebook with an NVIDIA 630M, so i've bumblebeed running here. If more info is need, just ask and i'll post. I really really need to test this vga passthrough working on :'/
here are some links that i've been reading
http://wiki.xen.org/wiki/Xen_PCI_Passth … assthrough
http://wiki.xen.org/wiki/Xen_VGA_Passthrough
http://wiki.xen.org/wiki/Xen_VGA_Passth … d_Adapters
http://wiki.xen.org/wiki/Secondary_GPU_Passthrough
here are some configs i've using
This is the virtual machine config. If this config i can boot normaly, but no VGA with NVIDIA. Em enable gfx_passthru, the machine cant boot. I've tryied do attach it do to PCI list via xl command, but not positive results. Xen always complain about the device cant be attached or what else 
name = "xenwin"
arch_libdir = 'lib64'
kernel = "/usr/lib/xen/boot/hvmloader"
builder='hvm'
memory = 4096
vcpus = 2
shadow_memory = 8
#vif = [ 'type=ioemu, bridge=tmpbridge' ]
#acpi = 1
#apic = 1
#boot_disk = [ 'file:/archives/vm/xenwin7.img,hda,w']
disk = ['file:/archives/vm/xenwin7.img,hda,w','file:/archives/vm/iso/winseven32.iso,hdc:cdrom,r']
#device_model = '/usr/lib64/xen/bin/qemu-dm'
boot = "c"
#boot = "dc"#only for installation
sdl = 1
vnc = 0
pea=1
nx=1
stdvga=0
videoram=256
usb=1
#vncconsole = 1
#vncpasswd = ''
#serial = 'pty'
#usbdevice = 'tablet'
#stdvga = 0
#iommu=soft
#gfx_passthru = 1
#pci=['01:00.0']
#pci = [ '01:00.0' ]
#tsc_mode = 0
#viridian = 1
pci = [
'01:00.0'
]grub
#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#
### BEGIN /etc/grub.d/00_header ###
insmod part_gpt
insmod part_msdos
if [ -s $prefix/grubenv ]; then
load_env
fi
set default="0"
if [ x"${feature_menuentry_id}" = xy ]; then
menuentry_id_option="--id"
else
menuentry_id_option=""
fi
export menuentry_id_option
if [ "${prev_saved_entry}" ]; then
set saved_entry="${prev_saved_entry}"
save_env saved_entry
set prev_saved_entry=
save_env prev_saved_entry
set boot_once=true
fi
function savedefault {
if [ -z "${boot_once}" ]; then
saved_entry="${chosen}"
save_env saved_entry
fi
}
function load_video {
if [ x$feature_all_video_module = xy ]; then
insmod all_video
else
insmod efi_gop
insmod efi_uga
insmod ieee1275_fb
insmod vbe
insmod vga
insmod video_bochs
insmod video_cirrus
fi
}
if [ x$feature_default_font_path = xy ] ; then
font=unicode
else
insmod part_gpt
insmod ext2
set root='hd0,gpt2'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2 --hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2 60a137b9-8cd5-47c9-ade3-4812e06e6dcd
else
search --no-floppy --fs-uuid --set=root 60a137b9-8cd5-47c9-ade3-4812e06e6dcd
fi
font="/usr/share/grub/unicode.pf2"
fi
if loadfont $font ; then
set gfxmode=auto
load_video
insmod gfxterm
set locale_dir=$prefix/locale
set lang=en_US
insmod gettext
fi
terminal_input console
terminal_output gfxterm
set timeout=5
### END /etc/grub.d/00_header ###
### BEGIN /etc/grub.d/09_xen ###
menuentry 'Xen 4.2.2 / Arch GNU/Linux, with Linux linux' --class xen --class arch --class gnu-linux --class gnu --class os {
insmod part_gpt
insmod fat
set root='hd0,gpt1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt1 --hint-efi=hd0,gpt1 --hint-baremetal=ahci0,gpt1 3D6B-9469
else
search --no-floppy --fs-uuid --set=root 3D6B-9469
fi
echo 'Loading Xen 4.2.2 ...'
multiboot /xen-4.2.2.gz /xen-4.2.2.gz xsave=1
echo Loading Linux linux ...
module /vmlinuz-linux /vmlinuz-linux root=UUID=60a137b9-8cd5-47c9-ade3-4812e06e6dcd ro console=tty0
echo "Loading initial ramdisk ..."
module /initramfs-linux.img
}
### END /etc/grub.d/09_xen ###
### BEGIN /etc/grub.d/10_linux ###
menuentry 'Arch Linux, with Linux core repo kernel' --class arch --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-core repo kernel-true-60a137b9-8cd5-47c9-ade3-4812e06e6dcd' {
load_video
set gfxpayload=keep
insmod gzio
insmod part_gpt
insmod fat
set root='hd0,gpt1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt1 --hint-efi=hd0,gpt1 --hint-baremetal=ahci0,gpt1 3D6B-9469
else
search --no-floppy --fs-uuid --set=root 3D6B-9469
fi
echo 'Loading Linux core repo kernel ...'
linux /vmlinuz-linux root=UUID=60a137b9-8cd5-47c9-ade3-4812e06e6dcd ro quiet xen-pciback.hide=(01:00.0)
echo 'Loading initial ramdisk ...'
initrd /initramfs-linux.img
}
menuentry 'Arch Linux, with Linux core repo kernel (Fallback initramfs)' --class arch --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-core repo kernel-fallback-60a137b9-8cd5-47c9-ade3-4812e06e6dcd' {
load_video
set gfxpayload=keep
insmod gzio
insmod part_gpt
insmod fat
set root='hd0,gpt1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt1 --hint-efi=hd0,gpt1 --hint-baremetal=ahci0,gpt1 3D6B-9469
else
search --no-floppy --fs-uuid --set=root 3D6B-9469
fi
echo 'Loading Linux core repo kernel ...'
linux /vmlinuz-linux root=UUID=60a137b9-8cd5-47c9-ade3-4812e06e6dcd ro quiet
echo 'Loading initial ramdisk ...'
initrd /initramfs-linux-fallback.img
}
### END /etc/grub.d/10_linux ###
### BEGIN /etc/grub.d/20_linux_xen ###
### END /etc/grub.d/20_linux_xen ###
### BEGIN /etc/grub.d/20_memtest86+ ###
### END /etc/grub.d/20_memtest86+ ###
### BEGIN /etc/grub.d/30_os-prober ###
### END /etc/grub.d/30_os-prober ###
### BEGIN /etc/grub.d/40_custom ###
# This file provides an easy way to add custom menu entries. Simply type the
# menu entries you want to add after this comment. Be careful not to change
# the 'exec tail' line above.
### END /etc/grub.d/40_custom ###
### BEGIN /etc/grub.d/41_custom ###
if [ -f ${config_directory}/custom.cfg ]; then
source ${config_directory}/custom.cfg
elif [ -z "${config_directory}" -a -f $prefix/custom.cfg ]; then
source $prefix/custom.cfg;
fi
### END /etc/grub.d/41_custom ###lspci
00:00.0 Host bridge: Intel Corporation 3rd Gen Core processor DRAM Controller (rev 09)
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor PCI Express Root Port (rev 09)
00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09)
00:14.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB xHCI Host Controller (rev 04)
00:16.0 Communication controller: Intel Corporation 7 Series/C210 Series Chipset Family MEI Controller #1 (rev 04)
00:1a.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation 7 Series/C210 Series Chipset Family High Definition Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 1 (rev c4)
00:1c.1 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 2 (rev c4)
00:1d.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation HM76 Express Chipset LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation 7 Series Chipset Family 6-port SATA Controller [AHCI mode] (rev 04)
00:1f.3 SMBus: Intel Corporation 7 Series/C210 Series Chipset Family SMBus Controller (rev 04)
01:00.0 VGA compatible controller: NVIDIA Corporation GF108M [GeForce GT 630M] (rev a1)
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168 PCI Express Gigabit Ethernet controller (rev 07)
03:00.0 Network controller: Qualcomm Atheros AR9485 Wireless Network Adapter (rev 01)lsmod
Module Size Used by
nls_cp437 5953 1
vfat 10119 1
fat 49421 1 vfat
intel_powerclamp 8802 0
coretemp 6102 0
kvm_intel 125437 0
snd_hda_codec_hdmi 29298 1
uvcvideo 72921 0
i915 563638 2
kvm 390263 1 kvm_intel
videobuf2_vmalloc 3304 1 uvcvideo
videobuf2_memops 2367 1 videobuf2_vmalloc
videobuf2_core 27541 1 uvcvideo
videodev 105273 2 uvcvideo,videobuf2_core
media 10309 2 uvcvideo,videodev
snd_hda_codec_realtek 30893 1
ums_realtek 7327 0
intel_agp 10936 1 i915
intel_gtt 12664 2 i915,intel_agp
snd_hda_intel 35816 4
arc4 2000 2
drm_kms_helper 35086 1 i915
joydev 9695 0
drm 230045 3 i915,drm_kms_helper
ath9k 88740 0
ath9k_common 2096 1 ath9k
ath9k_hw 373214 2 ath9k_common,ath9k
ath 15489 3 ath9k_common,ath9k,ath9k_hw
mac80211 488494 1 ath9k
asus_nb_wmi 6280 0
asus_wmi 16274 1 asus_nb_wmi
r8169 56491 0
iTCO_wdt 5407 0
iTCO_vendor_support 1929 1 iTCO_wdt
crc32_pclmul 2987 0
snd_hda_codec 145920 3 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_intel
sparse_keymap 3114 1 asus_wmi
mii 4059 1 r8169
i2c_algo_bit 5391 1 i915
cfg80211 452332 3 ath,ath9k,mac80211
crc32c_intel 14249 0
mei 58142 0
ghash_clmulni_intel 4469 0
aesni_intel 45385 1
aes_x86_64 7399 1 aesni_intel
xts 3007 1 aesni_intel
lrw 3565 1 aesni_intel
gf128mul 6018 2 lrw,xts
pci_hotplug 22930 1 asus_wmi
psmouse 84588 0
serio_raw 5041 0
i2c_i801 11269 0
mxm_wmi 1467 0
i2c_core 22479 6 drm,i915,i2c_i801,drm_kms_helper,i2c_algo_bit,videodev
snd_hwdep 6364 1 snd_hda_codec
rfkill 15626 3 cfg80211,asus_wmi
pcspkr 2027 0
lpc_ich 12849 0
ablk_helper 1972 1 aesni_intel
cryptd 8537 3 ghash_clmulni_intel,aesni_intel,ablk_helper
ac 2536 0
thermal 8652 0
battery 6970 0
fan 2753 0
wmi 8347 2 mxm_wmi,asus_wmi
acpi_cpufreq 10726 0
microcode 13204 0
evdev 9912 18
video 11203 2 i915,asus_wmi
mperf 1235 1 acpi_cpufreq
button 4669 1 i915
processor 27555 1 acpi_cpufreq
ext4 486052 2
crc16 1359 1 ext4
mbcache 5930 1 ext4
jbd2 85240 1 ext4
usb_storage 47063 1 ums_realtek
hid_generic 1153 0
usbhid 40956 0
hid 87539 2 hid_generic,usbhid
sr_mod 14930 0
sd_mod 30858 4
cdrom 35104 1 sr_mod
ahci 22696 3
libahci 21201 1 ahci
libata 171414 2 ahci,libahci
ehci_pci 4120 0
xhci_hcd 89711 0
ehci_hcd 47343 1 ehci_pci
scsi_mod 129660 4 usb_storage,libata,sd_mod,sr_mod
usbcore 177059 7 uvcvideo,ums_realtek,usb_storage,ehci_hcd,ehci_pci,usbhid,xhci_hcd
usb_common 954 1 usbcore
snd_pcm_oss 38479 0
snd_mixer_oss 14995 1 snd_pcm_oss
snd_pcm 76860 5 snd_pcm_oss,snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel
snd_page_alloc 7298 2 snd_pcm,snd_hda_intel
snd_timer 18687 2 snd_pcm
snd 58893 15 snd_hda_codec_realtek,snd_pcm_oss,snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_pcm,snd_hda_codec,snd_hda_intel,snd_mixer_oss
soundcore 5418 1 snduser@localhost $ grep -rnw "." -e "hacking"
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