Bug 571170 – app-emulation/xen-4.6.0-r5 with app-emulation/xen-tools USE="hvm qemu" - fails to use pci passthrough - libxl: error: libxl_pci.c:999:do_pci_add: xc_assign_device failed: Operation not permitted

• Status: RESOLVED INVALID
• Product: Gentoo Linux

[Description Tomáš Mózes 2016-01-07 15:22:28 UTC]

I'm trying to boot a Windows XP machine with configuration:
builder = "hvm"
name = "vm"
memory = 3000
vcpus = 2
vif = [ '' ]
disk = [ 'phy:/dev/vg_data/vm,hda,w' ]
usbdevice='tablet'
pci=['00:1a.0']

GRUB_CMDLINE_LINUX="... xen-pciback.hide=(00:1a.0)"

# xl create vm.conf
libxl: error: libxl_pci.c:999:do_pci_add: xc_assign_device failed: Operation not permitted
libxl: error: libxl_create.c:1424:domcreate_attach_pci: libxl_device_pci_add failed: -3
libxl: error: libxl.c:1591:libxl__destroy_domid: non-existant domain 3
libxl: error: libxl.c:1549:domain_destroy_callback: unable to destroy guest with domid 3
libxl: error: libxl.c:1476:domain_destroy_cb: destruction of domain 3 failed

When I remove the pci=[ ... line from the configuration, it boots properly. It works with Xen 4.5.2.

# grep -i xen /usr/src/linux/.config
CONFIG_XEN=y
CONFIG_XEN_DOM0=y
CONFIG_XEN_PVHVM=y
CONFIG_XEN_MAX_DOMAIN_MEMORY=500
CONFIG_XEN_SAVE_RESTORE=y
# CONFIG_XEN_DEBUG_FS is not set
CONFIG_XEN_PVH=y
CONFIG_PCI_XEN=y
CONFIG_XEN_PCIDEV_FRONTEND=y
CONFIG_XEN_BLKDEV_FRONTEND=y
CONFIG_XEN_BLKDEV_BACKEND=y
# CONFIG_XEN_SCSI_FRONTEND is not set
CONFIG_XEN_NETDEV_FRONTEND=y
CONFIG_XEN_NETDEV_BACKEND=y
CONFIG_INPUT_XEN_KBDDEV_FRONTEND=y
CONFIG_HVC_XEN=y
CONFIG_HVC_XEN_FRONTEND=y
# CONFIG_XEN_WDT is not set
CONFIG_XEN_FBDEV_FRONTEND=y
# Xen driver support
CONFIG_XEN_BALLOON=y
CONFIG_XEN_SCRUB_PAGES=y
CONFIG_XEN_DEV_EVTCHN=y
CONFIG_XEN_BACKEND=y
CONFIG_XENFS=y
CONFIG_XEN_COMPAT_XENFS=y
CONFIG_XEN_SYS_HYPERVISOR=y
CONFIG_XEN_XENBUS_FRONTEND=y
CONFIG_XEN_GNTDEV=y
CONFIG_XEN_GRANT_DEV_ALLOC=y
CONFIG_SWIOTLB_XEN=y
CONFIG_XEN_PCIDEV_BACKEND=y
CONFIG_XEN_PRIVCMD=y
CONFIG_XEN_ACPI_PROCESSOR=y
CONFIG_XEN_MCE_LOG=y
CONFIG_XEN_HAVE_PVMMU=y
CONFIG_XEN_EFI=y
CONFIG_XEN_AUTO_XLATE=y
CONFIG_XEN_ACPI=y

Portage 2.2.26 (python 3.4.3-final-0, default/linux/amd64/13.0, gcc-4.8.5, glibc-2.21-r1, 4.1.15-gentoo x86_64)
=================================================================
                         System Settings
=================================================================
System uname: Linux-4.1.15-gentoo-x86_64-Intel-R-_Xeon-R-_CPU_E5-2420_v2_@_2.20GHz-with-gentoo-2.2
KiB Mem:     3869828 total,   3403980 free
KiB Swap:          0 total,         0 free
Timestamp of repository gentoo: Wed, 06 Jan 2016 15:45:01 +0000
sh bash 4.3_p42-r1
ld GNU ld (Gentoo 2.25.1 p1.1) 2.25.1
app-shells/bash:          4.3_p42-r1::gentoo
dev-lang/perl:            5.20.2::gentoo
dev-lang/python:          2.7.10-r1::gentoo, 3.3.5-r1::gentoo, 3.4.3-r1::gentoo
dev-util/cmake:           3.2.2::gentoo
dev-util/pkgconfig:       0.28-r2::gentoo
sys-apps/baselayout:      2.2::gentoo
sys-apps/openrc:          0.18.4::gentoo
sys-apps/sandbox:         2.6-r1::gentoo
sys-devel/autoconf:       2.69::gentoo
sys-devel/automake:       1.14.1::gentoo, 1.15::gentoo
sys-devel/binutils:       2.25.1-r1::gentoo
sys-devel/gcc:            4.8.5::gentoo, 4.9.3::gentoo
sys-devel/gcc-config:     1.7.3::gentoo
sys-devel/libtool:        2.4.6::gentoo
sys-devel/make:           4.1-r1::gentoo
sys-kernel/linux-headers: 4.1::gentoo (virtual/os-headers)
sys-libs/glibc:           2.21-r1::gentoo
Repositories:

ACCEPT_KEYWORDS="amd64"
ACCEPT_LICENSE="*"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-mtune=native -O2 -pipe"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/share/gnupg/qualified.txt"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo"
CXXFLAGS="-mtune=native -O2 -pipe"
DISTDIR="/usr/portage/distfiles"
FCFLAGS="-O2 -pipe"
FEATURES="assume-digests binpkg-logs config-protect-if-modified distlocks ebuild-locks fixlafiles merge-sync news parallel-fetch preserve-libs protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync xattr"
FFLAGS="-O2 -pipe"
GENTOO_MIRRORS="http://tux.rainside.sk/gentoo/ http://gentoo.wheel.sk/"
LDFLAGS="-Wl,-O1 -Wl,--as-needed"
MAKEOPTS="-j12"
PKGDIR="/usr/portage/packages"
PORTAGE_CONFIGROOT="/"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --omit-dir-times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages"
PORTAGE_TMPDIR="/var/tmp"
USE="acl amd64 berkdb bzip2 cli cracklib crypt cxx dri fortran gdbm iconv mmx mmxext modules multilib ncurses nptl openmp pam pcre readline seccomp session sse sse2 ssl tcpd unicode xattr zlib" ABI_X86="64" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" APACHE2_MODULES="authn_core authz_core socache_shmcb unixd actions alias auth_basic authn_alias authn_anon authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache cgi cgid dav dav_fs dav_lock deflate dir disk_cache env expires ext_filter file_cache filter headers include info log_config logio mem_cache mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" CALLIGRA_FEATURES="kexi words flow plan sheets stage tables krita karbon braindump author" CAMERAS="ptp2" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" CPU_FLAGS_X86="aes avx mmx mmxext popcnt sse sse2 sse3 sse4_1 sse4_2 ssse3" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf superstar2 timing tsip tripmate tnt ublox ubx" INPUT_DEVICES="keyboard mouse evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-5" PYTHON_SINGLE_TARGET="python2_7" PYTHON_TARGETS="python2_7 python3_4" RUBY_TARGETS="ruby20 ruby21" USERLAND="GNU" VIDEO_CARDS="fbdev glint intel mach64 mga nouveau nv r128 radeon savage sis tdfx trident vesa via vmware dummy v4l" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq steal rawnat logmark ipmark dhcpmac delude chaos account"
Unset:  CC, CPPFLAGS, CTARGET, CXX, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LANG, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, USE_PYTHON

=================================================================
                        Package Settings
=================================================================

app-emulation/xen-4.5.2-r3::gentoo was built with the following:
USE="-custom-cflags -debug -efi -flask -xsm" ABI_X86="64"
CFLAGS=""


app-emulation/xen-tools-4.5.2-r3::gentoo was built with the following:
USE="hvm pam qemu screen -api -custom-cflags -debug -doc -flask (-ocaml) -ovmf -pygrub -python -static-libs -system-qemu -system-seabios" ABI_X86="64" PYTHON_TARGETS="python2_7"
CFLAGS=""
CXXFLAGS="-mtune=native -O2 -pipe -fno-strict-overflow"
LDFLAGS=""

[Comment 1 Tomáš Mózes 2016-12-23 00:24:18 UTC]

pci=[’00:1a.0,rdm_policy=relaxed’] did the trick...