[Top] [All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Xen-users] VGA PASSTHROUGH not working :(

My Grub is :
[root@localhost ~]# cat /boot/grub2/grub.cfg 
#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by grub2-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#

### BEGIN /etc/grub.d/00_header ###
set pager=1

if [ -s $prefix/grubenv ]; then
  load_env
fi
if [ "${next_entry}" ] ; then
   set default="${next_entry}"
   set next_entry=
   save_env next_entry
   set boot_once=true
else
   set default="${saved_entry}"
fi

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
}

terminal_output console
if [ x$feature_timeout_style = xy ] ; then
  set timeout_style=menu
  set timeout=5
# Fallback normal timeout code in case the timeout_style feature is
# unavailable.
else
  set timeout=5
fi
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/01_users ###
if [ -f ${prefix}/user.cfg ]; then
  source ${prefix}/user.cfg
  if [ -n "${GRUB2_PASSWORD}" ]; then
    set superusers="root"
    export superusers
    password_pbkdf2 root ${GRUB2_PASSWORD}
  fi
fi
### END /etc/grub.d/01_users ###

### BEGIN /etc/grub.d/10_linux ###
menuentry 'Fedora (4.4.7-300.fc23.x86_64) 23 (Server Edition)' --class fedora --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-4.4.7-300.fc23.x86_64-advanced-5a537009-00b1-4f8c-a547-26dd00707ee9' {
load_video
set gfxpayload=keep
insmod gzio
insmod part_msdos
insmod lvm
insmod ext2
set root='lvmid/3p7jxo-Dwtm-NABs-2s0k-pL7d-8j86-Lo3aFr/YUlEaE-gsRR-1slu-Z70H-QWiX-saVL-s7gWsZ'
if [ x$feature_platform_search_hint = xy ]; then
 search --no-floppy --fs-uuid --set=root --hint='lvmid/3p7jxo-Dwtm-NABs-2s0k-pL7d-8j86-Lo3aFr/YUlEaE-gsRR-1slu-Z70H-QWiX-saVL-s7gWsZ'  5a537009-00b1-4f8c-a547-26dd00707ee9
else
 search --no-floppy --fs-uuid --set=root 5a537009-00b1-4f8c-a547-26dd00707ee9
fi
linux16 /boot/vmlinuz-4.4.7-300.fc23.x86_64 root=/dev/mapper/fedora-root00 ro rd.lvm.lv=fedora/root00 rd.lvm.lv=fedora/swap rhgb quiet 
initrd16 /boot/initramfs-4.4.7-300.fc23.x86_64.img
}
menuentry 'Fedora (4.2.3-300.fc23.x86_64) 23 (Server Edition)' --class fedora --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-4.2.3-300.fc23.x86_64-advanced-5a537009-00b1-4f8c-a547-26dd00707ee9' {
load_video
set gfxpayload=keep
insmod gzio
insmod part_msdos
insmod lvm
insmod ext2
set root='lvmid/3p7jxo-Dwtm-NABs-2s0k-pL7d-8j86-Lo3aFr/YUlEaE-gsRR-1slu-Z70H-QWiX-saVL-s7gWsZ'
if [ x$feature_platform_search_hint = xy ]; then
 search --no-floppy --fs-uuid --set=root --hint='lvmid/3p7jxo-Dwtm-NABs-2s0k-pL7d-8j86-Lo3aFr/YUlEaE-gsRR-1slu-Z70H-QWiX-saVL-s7gWsZ'  5a537009-00b1-4f8c-a547-26dd00707ee9
else
 search --no-floppy --fs-uuid --set=root 5a537009-00b1-4f8c-a547-26dd00707ee9
fi
linux16 /boot/vmlinuz-4.2.3-300.fc23.x86_64 root=/dev/mapper/fedora-root00 ro rd.lvm.lv=fedora/root00 rd.lvm.lv=fedora/swap rhgb quiet 
initrd16 /boot/initramfs-4.2.3-300.fc23.x86_64.img
}
menuentry 'Fedora (0-rescue-0fa9e7453b15478390033c60f3b03e9b) 23 (Server Edition)' --class fedora --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-0-rescue-0fa9e7453b15478390033c60f3b03e9b-advanced-5a537009-00b1-4f8c-a547-26dd00707ee9' {
load_video
insmod gzio
insmod part_msdos
insmod lvm
insmod ext2
set root='lvmid/3p7jxo-Dwtm-NABs-2s0k-pL7d-8j86-Lo3aFr/YUlEaE-gsRR-1slu-Z70H-QWiX-saVL-s7gWsZ'
if [ x$feature_platform_search_hint = xy ]; then
 search --no-floppy --fs-uuid --set=root --hint='lvmid/3p7jxo-Dwtm-NABs-2s0k-pL7d-8j86-Lo3aFr/YUlEaE-gsRR-1slu-Z70H-QWiX-saVL-s7gWsZ'  5a537009-00b1-4f8c-a547-26dd00707ee9
else
 search --no-floppy --fs-uuid --set=root 5a537009-00b1-4f8c-a547-26dd00707ee9
fi
linux16 /boot/vmlinuz-0-rescue-0fa9e7453b15478390033c60f3b03e9b root=/dev/mapper/fedora-root00 ro rd.lvm.lv=fedora/root00 rd.lvm.lv=fedora/swap rhgb quiet 
initrd16 /boot/initramfs-0-rescue-0fa9e7453b15478390033c60f3b03e9b.img
}

### END /etc/grub.d/10_linux ###

### BEGIN /etc/grub.d/20_linux_xen ###
menuentry 'Fedora, with Xen hypervisor' --class fedora --class gnu-linux --class gnu --class os --class xen $menuentry_id_option 'xen-gnulinux-simple-5a537009-00b1-4f8c-a547-26dd00707ee9' {
insmod part_msdos
insmod lvm
insmod ext2
set root='lvmid/3p7jxo-Dwtm-NABs-2s0k-pL7d-8j86-Lo3aFr/YUlEaE-gsRR-1slu-Z70H-QWiX-saVL-s7gWsZ'
if [ x$feature_platform_search_hint = xy ]; then
 search --no-floppy --fs-uuid --set=root --hint='lvmid/3p7jxo-Dwtm-NABs-2s0k-pL7d-8j86-Lo3aFr/YUlEaE-gsRR-1slu-Z70H-QWiX-saVL-s7gWsZ'  5a537009-00b1-4f8c-a547-26dd00707ee9
else
 search --no-floppy --fs-uuid --set=root 5a537009-00b1-4f8c-a547-26dd00707ee9
fi
echo 'Loading Xen 4.5.3 ...'
        if [ "$grub_platform" = "pc" -o "$grub_platform" = "" ]; then
            xen_rm_opts=
        else
            xen_rm_opts="no-real-mode edd=off"
        fi
multiboot /boot/xen-4.5.3.gz intel_iommu=on placeholder  ${xen_rm_opts}
echo 'Loading Linux 4.4.7-300.fc23.x86_64 ...'
module /boot/vmlinuz-4.4.7-300.fc23.x86_64 placeholder root=/dev/mapper/fedora-root00 ro rd.lvm.lv=fedora/root00 rd.lvm.lv=fedora/swap rhgb quiet 
echo 'Loading initial ramdisk ...'
module --nounzip   /boot/initramfs-4.4.7-300.fc23.x86_64.img
}
submenu 'Advanced options for Fedora (with Xen hypervisor)' $menuentry_id_option 'gnulinux-advanced-5a537009-00b1-4f8c-a547-26dd00707ee9' {
submenu 'Xen hypervisor, version 4.5.3' $menuentry_id_option 'xen-hypervisor-4.5.3-5a537009-00b1-4f8c-a547-26dd00707ee9' {
menuentry 'Fedora, with Xen 4.5.3 and Linux 4.4.7-300.fc23.x86_64' --class fedora --class gnu-linux --class gnu --class os --class xen $menuentry_id_option 'xen-gnulinux-4.4.7-300.fc23.x86_64-advanced-5a537009-00b1-4f8c-a547-26dd00707ee9' {
insmod part_msdos
insmod lvm
insmod ext2
set root='lvmid/3p7jxo-Dwtm-NABs-2s0k-pL7d-8j86-Lo3aFr/YUlEaE-gsRR-1slu-Z70H-QWiX-saVL-s7gWsZ'
if [ x$feature_platform_search_hint = xy ]; then
 search --no-floppy --fs-uuid --set=root --hint='lvmid/3p7jxo-Dwtm-NABs-2s0k-pL7d-8j86-Lo3aFr/YUlEaE-gsRR-1slu-Z70H-QWiX-saVL-s7gWsZ'  5a537009-00b1-4f8c-a547-26dd00707ee9
else
 search --no-floppy --fs-uuid --set=root 5a537009-00b1-4f8c-a547-26dd00707ee9
fi
echo 'Loading Xen 4.5.3 ...'
       if [ "$grub_platform" = "pc" -o "$grub_platform" = "" ]; then
           xen_rm_opts=
       else
           xen_rm_opts="no-real-mode edd=off"
       fi
multiboot /boot/xen-4.5.3.gz intel_iommu=on placeholder   ${xen_rm_opts}
echo 'Loading Linux 4.4.7-300.fc23.x86_64 ...'
module /boot/vmlinuz-4.4.7-300.fc23.x86_64 placeholder root=/dev/mapper/fedora-root00 ro rd.lvm.lv=fedora/root00 rd.lvm.lv=fedora/swap rhgb quiet 
echo 'Loading initial ramdisk ...'
module --nounzip   /boot/initramfs-4.4.7-300.fc23.x86_64.img
}
menuentry 'Fedora, with Xen 4.5.3 and Linux 4.2.3-300.fc23.x86_64' --class fedora --class gnu-linux --class gnu --class os --class xen $menuentry_id_option 'xen-gnulinux-4.2.3-300.fc23.x86_64-advanced-5a537009-00b1-4f8c-a547-26dd00707ee9' {
insmod part_msdos
insmod lvm
insmod ext2
set root='lvmid/3p7jxo-Dwtm-NABs-2s0k-pL7d-8j86-Lo3aFr/YUlEaE-gsRR-1slu-Z70H-QWiX-saVL-s7gWsZ'
if [ x$feature_platform_search_hint = xy ]; then
 search --no-floppy --fs-uuid --set=root --hint='lvmid/3p7jxo-Dwtm-NABs-2s0k-pL7d-8j86-Lo3aFr/YUlEaE-gsRR-1slu-Z70H-QWiX-saVL-s7gWsZ'  5a537009-00b1-4f8c-a547-26dd00707ee9
else
 search --no-floppy --fs-uuid --set=root 5a537009-00b1-4f8c-a547-26dd00707ee9
fi
echo 'Loading Xen 4.5.3 ...'
       if [ "$grub_platform" = "pc" -o "$grub_platform" = "" ]; then
           xen_rm_opts=
       else
           xen_rm_opts="no-real-mode edd=off"
       fi
multiboot /boot/xen-4.5.3.gz intel_iommu=on placeholder   ${xen_rm_opts}
echo 'Loading Linux 4.2.3-300.fc23.x86_64 ...'
module /boot/vmlinuz-4.2.3-300.fc23.x86_64 placeholder root=/dev/mapper/fedora-root00 ro rd.lvm.lv=fedora/root00 rd.lvm.lv=fedora/swap rhgb quiet 
echo 'Loading initial ramdisk ...'
module --nounzip   /boot/initramfs-4.2.3-300.fc23.x86_64.img
}
}
submenu 'Xen hypervisor, version 4.5' $menuentry_id_option 'xen-hypervisor-4.5-5a537009-00b1-4f8c-a547-26dd00707ee9' {
menuentry 'Fedora, with Xen 4.5 and Linux 4.4.7-300.fc23.x86_64' --class fedora --class gnu-linux --class gnu --class os --class xen $menuentry_id_option 'xen-gnulinux-4.4.7-300.fc23.x86_64-advanced-5a537009-00b1-4f8c-a547-26dd00707ee9' {
insmod part_msdos
insmod lvm
insmod ext2
set root='lvmid/3p7jxo-Dwtm-NABs-2s0k-pL7d-8j86-Lo3aFr/YUlEaE-gsRR-1slu-Z70H-QWiX-saVL-s7gWsZ'
if [ x$feature_platform_search_hint = xy ]; then
 search --no-floppy --fs-uuid --set=root --hint='lvmid/3p7jxo-Dwtm-NABs-2s0k-pL7d-8j86-Lo3aFr/YUlEaE-gsRR-1slu-Z70H-QWiX-saVL-s7gWsZ'  5a537009-00b1-4f8c-a547-26dd00707ee9
else
 search --no-floppy --fs-uuid --set=root 5a537009-00b1-4f8c-a547-26dd00707ee9
fi
echo 'Loading Xen 4.5 ...'
       if [ "$grub_platform" = "pc" -o "$grub_platform" = "" ]; then
           xen_rm_opts=
       else
           xen_rm_opts="no-real-mode edd=off"
       fi
multiboot /boot/xen-4.5.gz intel_iommu=on placeholder   ${xen_rm_opts}
echo 'Loading Linux 4.4.7-300.fc23.x86_64 ...'
module /boot/vmlinuz-4.4.7-300.fc23.x86_64 placeholder root=/dev/mapper/fedora-root00 ro rd.lvm.lv=fedora/root00 rd.lvm.lv=fedora/swap rhgb quiet 
echo 'Loading initial ramdisk ...'
module --nounzip   /boot/initramfs-4.4.7-300.fc23.x86_64.img
}
menuentry 'Fedora, with Xen 4.5 and Linux 4.2.3-300.fc23.x86_64' --class fedora --class gnu-linux --class gnu --class os --class xen $menuentry_id_option 'xen-gnulinux-4.2.3-300.fc23.x86_64-advanced-5a537009-00b1-4f8c-a547-26dd00707ee9' {
insmod part_msdos
insmod lvm
insmod ext2
set root='lvmid/3p7jxo-Dwtm-NABs-2s0k-pL7d-8j86-Lo3aFr/YUlEaE-gsRR-1slu-Z70H-QWiX-saVL-s7gWsZ'
if [ x$feature_platform_search_hint = xy ]; then
 search --no-floppy --fs-uuid --set=root --hint='lvmid/3p7jxo-Dwtm-NABs-2s0k-pL7d-8j86-Lo3aFr/YUlEaE-gsRR-1slu-Z70H-QWiX-saVL-s7gWsZ'  5a537009-00b1-4f8c-a547-26dd00707ee9
else
 search --no-floppy --fs-uuid --set=root 5a537009-00b1-4f8c-a547-26dd00707ee9
fi
echo 'Loading Xen 4.5 ...'
       if [ "$grub_platform" = "pc" -o "$grub_platform" = "" ]; then
           xen_rm_opts=
       else
           xen_rm_opts="no-real-mode edd=off"
       fi
multiboot /boot/xen-4.5.gz intel_iommu=on placeholder   ${xen_rm_opts}
echo 'Loading Linux 4.2.3-300.fc23.x86_64 ...'
module /boot/vmlinuz-4.2.3-300.fc23.x86_64 placeholder root=/dev/mapper/fedora-root00 ro rd.lvm.lv=fedora/root00 rd.lvm.lv=fedora/swap rhgb quiet 
echo 'Loading initial ramdisk ...'
module --nounzip   /boot/initramfs-4.2.3-300.fc23.x86_64.img
}
}
submenu 'Xen hypervisor, version xen' $menuentry_id_option 'xen-hypervisor-xen-5a537009-00b1-4f8c-a547-26dd00707ee9' {
menuentry 'Fedora, with Xen xen and Linux 4.4.7-300.fc23.x86_64' --class fedora --class gnu-linux --class gnu --class os --class xen $menuentry_id_option 'xen-gnulinux-4.4.7-300.fc23.x86_64-advanced-5a537009-00b1-4f8c-a547-26dd00707ee9' {
insmod part_msdos
insmod lvm
insmod ext2
set root='lvmid/3p7jxo-Dwtm-NABs-2s0k-pL7d-8j86-Lo3aFr/YUlEaE-gsRR-1slu-Z70H-QWiX-saVL-s7gWsZ'
if [ x$feature_platform_search_hint = xy ]; then
 search --no-floppy --fs-uuid --set=root --hint='lvmid/3p7jxo-Dwtm-NABs-2s0k-pL7d-8j86-Lo3aFr/YUlEaE-gsRR-1slu-Z70H-QWiX-saVL-s7gWsZ'  5a537009-00b1-4f8c-a547-26dd00707ee9
else
 search --no-floppy --fs-uuid --set=root 5a537009-00b1-4f8c-a547-26dd00707ee9
fi
echo 'Loading Xen xen ...'
       if [ "$grub_platform" = "pc" -o "$grub_platform" = "" ]; then
           xen_rm_opts=
       else
           xen_rm_opts="no-real-mode edd=off"
       fi
multiboot /boot/xen.gz intel_iommu=on placeholder  ${xen_rm_opts}
echo 'Loading Linux 4.4.7-300.fc23.x86_64 ...'
module /boot/vmlinuz-4.4.7-300.fc23.x86_64 placeholder root=/dev/mapper/fedora-root00 ro rd.lvm.lv=fedora/root00 rd.lvm.lv=fedora/swap rhgb quiet 
echo 'Loading initial ramdisk ...'
module --nounzip   /boot/initramfs-4.4.7-300.fc23.x86_64.img
}
menuentry 'Fedora, with Xen xen and Linux 4.2.3-300.fc23.x86_64' --class fedora --class gnu-linux --class gnu --class os --class xen $menuentry_id_option 'xen-gnulinux-4.2.3-300.fc23.x86_64-advanced-5a537009-00b1-4f8c-a547-26dd00707ee9' {
insmod part_msdos
insmod lvm
insmod ext2
set root='lvmid/3p7jxo-Dwtm-NABs-2s0k-pL7d-8j86-Lo3aFr/YUlEaE-gsRR-1slu-Z70H-QWiX-saVL-s7gWsZ'
if [ x$feature_platform_search_hint = xy ]; then
 search --no-floppy --fs-uuid --set=root --hint='lvmid/3p7jxo-Dwtm-NABs-2s0k-pL7d-8j86-Lo3aFr/YUlEaE-gsRR-1slu-Z70H-QWiX-saVL-s7gWsZ'  5a537009-00b1-4f8c-a547-26dd00707ee9
else
 search --no-floppy --fs-uuid --set=root 5a537009-00b1-4f8c-a547-26dd00707ee9
fi
echo 'Loading Xen xen ...'
       if [ "$grub_platform" = "pc" -o "$grub_platform" = "" ]; then
           xen_rm_opts=
       else
           xen_rm_opts="no-real-mode edd=off"
       fi
multiboot /boot/xen.gz intel_iommu=on placeholder   ${xen_rm_opts}
echo 'Loading Linux 4.2.3-300.fc23.x86_64 ...'
module /boot/vmlinuz-4.2.3-300.fc23.x86_64 placeholder root=/dev/mapper/fedora-root00 ro rd.lvm.lv=fedora/root00 rd.lvm.lv=fedora/swap rhgb quiet 
echo 'Loading initial ramdisk ...'
module --nounzip   /boot/initramfs-4.2.3-300.fc23.x86_64.img
}
}
}

### END /etc/grub.d/20_linux_xen ###

### BEGIN /etc/grub.d/20_ppc_terminfo ###
### END /etc/grub.d/20_ppc_terminfo ###

### 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 ###


As you see, I added the parameter that you said but is it on right place?



On Monday, May 16, 2016 12:56 PM, De Coro Guillaume <guillaumedecoro@xxxxxxxxx> wrote:


Hi,

I'm not a great user of xen but I known several things. sm8ax1 is right. It seems you are missing IOMMU. Don't forget to add "intel_iommu=on" in your grub default. If it works you can see that in your dmesg:
[    0.000000] DMAR: IOMMU enabled
[    0.078793] DMAR-IR: IOAPIC id 2 under DRHD base  0xfed91000 IOMMU 1
[    0.865169] iommu: Adding device 0000:00:00.0 to group 0
[    0.865179] iommu: Adding device 0000:00:02.0 to group 1
[    0.865194] iommu: Adding device 0000:00:14.0 to group 2
[    0.865204] iommu: Adding device 0000:00:14.2 to group 2
[    0.865215] iommu: Adding device 0000:00:16.0 to group 3
[    0.865225] iommu: Adding device 0000:00:17.0 to group 4
[    0.865243] iommu: Adding device 0000:00:1c.0 to group 5
[    0.865257] iommu: Adding device 0000:00:1c.2 to group 5
[    0.865280] iommu: Adding device 0000:00:1f.0 to group 6
[    0.865294] iommu: Adding device 0000:00:1f.2 to group 6
[    0.865303] iommu: Adding device 0000:00:1f.3 to group 6
[    0.865312] iommu: Adding device 0000:00:1f.4 to group 6
[    0.865321] iommu: Adding device 0000:00:1f.6 to group 6
[    0.865329] iommu: Adding device 0000:01:00.0 to group 5
[    0.865338] iommu: Adding device 0000:02:00.0 to group 5

and about DMAR:

[    0.000000] ACPI: DMAR 0x00000000A52B3000 0000A8 (v01 INTEL  SKL      00000001 INTL 00000001)
[    0.000000] DMAR: IOMMU enabled
[    0.078747] DMAR: Host address width 39
[    0.078751] DMAR: DRHD base: 0x000000fed90000 flags: 0x0
[    0.078769] DMAR: dmar0: reg_base_addr fed90000 ver 1:0 cap 1c0000c40660462 ecap 7e3ff0505e
[    0.078775] DMAR: DRHD base: 0x000000fed91000 flags: 0x1
[    0.078781] DMAR: dmar1: reg_base_addr fed91000 ver 1:0 cap d2008c40660462 ecap f050da
[    0.078786] DMAR: RMRR base: 0x000000a4eff000 end: 0x000000a4f1efff
[    0.078789] DMAR: RMRR base: 0x000000a5800000 end: 0x000000a7ffffff
[    0.078793] DMAR-IR: IOAPIC id 2 under DRHD base  0xfed91000 IOMMU 1
[    0.078796] DMAR-IR: HPET id 0 under DRHD base 0xfed91000
[    0.078799] DMAR-IR: x2apic is disabled because BIOS sets x2apic opt out bit.
[    0.078801] DMAR-IR: Use 'intremap=no_x2apic_optout' to override the BIOS setting.
[    0.080255] DMAR-IR: Enabled IRQ remapping in xapic mode
[    0.864755] DMAR: No ATSR found
[    0.864868] DMAR: dmar0: Using Queued invalidation
[    0.864992] DMAR: dmar1: Using Queued invalidation
[    0.865000] DMAR: Setting RMRR:
[    0.865022] DMAR: Setting identity map for device 0000:00:02.0 [0xa5800000 - 0xa7ffffff]
[    0.865037] DMAR: Setting identity map for device 0000:00:14.0 [0xa4eff000 - 0xa4f1efff]
[    0.865047] DMAR: Prepare 0-16MiB unity mapping for LPC
[    0.865093] DMAR: Setting identity map for device 0000:00:1f.0 [0x0 - 0xffffff]
[    0.865112] DMAR: Intel(R) Virtualization Technology for Directed I/O

It's important not to claim your passthroughed hardware by dom0. Just use "pci_stub" parameters in your grub default. After that, your command "xl pci-assignable-list" will give your video card available.

About IGD passthrough, I'm working on it without success for monthes. Maybe I'm wrong, but XenGT build fail for me. I'm using an Intel i3 6100T with Intel HD 530. I saw that Xen 4.7 will handle some igd passthrough parameters. So wait and see... and try it :)

Ciao.

Le 14/05/2016 14:56, sm8ax1@xxxxxxxxxxx a écrit :
Well, it looks to me like you don't have an IOMMU. You can check your Intel processor http://ark.intel.com/ and look for "VT-d" support. There is probably a similar site for AMD, but they call it "IOMMU" support; same thing just different names. There might also be some way to check through `lshw` or `/proc/cpuinfo` or the like, but I don't know for sure.

The wiki mentions that generic PCI passthrough might still work on some graphics cards, even without an IOMMU, but I imagine your chances are pretty slim. Something to try perhaps is setting up your HVM to automatically start when the system is booted, with generic PCI passthrough enabled, and blacklist the module on the Dom0 and reboot. In theory this prevents the Dom0 driver from interfering with the HVM's configuration of the graphics card, but once again, it might work or it might not.

http://wiki.xen.org/wiki/Xen_VGA_Passthrough
http://wiki.xen.org/wiki/VTdHowTo

If that doesn't work, your options are buy a new PC/processor with an IOMMU, or use VNC, Spice, SDL, GTK, etc. with userspace frontends in the Dom0. Spice with the QXL video driver is likely to give you the best performance, but even it won't compete with that of VGA passthrough.

http://wiki.xen.org/wiki/SPICE_support_in_Xen

If you go the route of upgrading your hardware, XenGT (now called "GVT-v for Xen") is something else to look into. The idea behind it is to allow multiple VMs to simultaneously use VGA passthrough in a safe and performant manner by creating multiple virtual graphics cards at the hardware level. At least as of Jan 2015, XenGT is being developed out-of-tree, but I haven't followed up on it as to whether it's been merged (or abandoned). If I recall correctly, this is supported on Intel 6th generation and newer processors with Intel HD 6000+ graphics, but you should definitely double check that.

http://wiki.xen.org/wiki/XenGT
https://blog.xenproject.org/2014/03/11/xen-graphics-virtualization-xengt/
http://events.linuxfoundation.org/sites/events/files/slides/XenGT-LinuxCollaborationSummit-final_1.pdf

There used to be something called "Paravirtualized DRM", which probably worked like the paravirtualized framebuffer, only using the newer and faster Linux DRM API. This, I guess, would have allowed multiple rendering clients across multiple VMs to directly render their window contents just as they would on baremetal (with the PV DRM driver acting as a shim), without any kind of VGA/PCI passthrough. Unfortunately this effort has been abandoned, and I've been unable to track down the author or even the original code.

http://wiki.xen.org/wiki/Paravirtualized_DRM


Quoting Jason Long <hack3rcon@xxxxxxxxx>:
Hello.
I want to use my VGA in VM that running Windows 7, My VGA information is :
 
01:00.0 VGA compatible controller: NVIDIA Corporation GT218 [GeForce 210] (rev a2)
Subsystem: ASUSTeK Computer Inc. Device 8354
Kernel driver in use: nouveau
Kernel modules: nouveau
 
And :
 
[root@localhost ~]# xl pci-assignable-list 
[root@localhost ~]# 
 
And I added below lines to my VM config file :
 
gfx_passthru=0
acpi=1
pci=['01:00.0 ']
 
but when I want fire my VM, It show me below error :
 
libxl: error: libxl_pci.c:1089:libxl__device_pci_add: PCI device 0000:01:00.0 cannot be assigned - no IOMMU?
libxl: error: libxl_create.c:1405:domcreate_attach_pci: libxl_device_pci_add failed: -1
libxl: info: libxl.c:1698:devices_destroy_cb: forked pid 3365 for destroy of domain 3
 
How can I solve it?




-------------------------------------------------
ONLY AT VFEmail! - Use our Metadata Mitigator™ to keep your email out of the NSA's hands!
$24.95 ONETIME Lifetime accounts with Privacy Features!
No Bandwidth Quotas!   15GB disk space!
Commercial and Bulk Mail Options! 



_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxx
http://lists.xen.org/xen-users


_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxx
http://lists.xen.org/xen-users


_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxx
http://lists.xen.org/xen-users

 

©2013 Xen Project, A Linux Foundation Collaborative Project. All Rights Reserved.
Linux Foundation is a registered trademark of The Linux Foundation.
Xen Project is a trademark of The Linux Foundation.

Rackspace

Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.