This currently relies on the third-party IMQ patch (linuximq.net)
being present in dom0. The plan is to replace this with a direct hook
into netback eventually.
This patch includes a pared-down and patched copy of ebtables to
install IMQ on a VIF.
Signed-off-by: Brendan Cully <brendan@cs.ubc.ca>
This patch implements pci passthrough (hotplug and coldplug) in
libxenlight, it also adds three new commands to xl: pci-attach,
pci-detach and pci-list.
Currently flr on a device is done writing to
/sys/bus/pci/drivers/pciback/do_flr
pciback do_flr is present in both XCI and XCP 2.6.27 kernels.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
This patch makes sure that the domain name to domid conversion is
correct, cross referencing the information found on xenstore with the
list of running domains.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Alphabetize object files and guest config options for better
readability. Also remove svm interrupt prototypes which do not
exist.
Signed-off-by: Christoph Egger <Christoph.Egger@amd.com>
XenAPI (not xapi) has supported only LUN assignment mode for pvSCSI.
But at last, HOST assignment mode also is supported by these patches.
To support HOST assignment mode, these patches add PSCSI_HBA class
and DSCSI_HBA class to XenAPI.
Signed-off-by: Masaki Kanno <kanno.masaki@jp.fujitsu.com>
Blktap2 port of remus disk driver. Backwards compatable with blktap1
implementation.
Signed-off-by: Ryan O'Connor <rjo@cs.ubc.ca>
Signed-off-by: Brendan Cully <brendan@cs.ubc.ca>
Currently blktap2 opens a driver stack, closes it, and re-opens
it. This causes problems with our remus driver: the primary may
connect to the backup in between the first and second open.
This is a temporary fix.
Signed-off-by: Ryan O'Connor <rjo@cs.ubc.ca>
Blktap2 allows block device drivers to be layered to create more
advanced virtual block devices. However, composing a layered driver is
not exposed to the user. This patch fixes this, and allows the user to
explicitly specify a driver chain when starting a tapdisk process,
using the pipe character ('|') to explicitly seperate layers in a
blktap2 configuration string.
for example, the command:
~$ tapdisk2 -n "log:|aio:/path/to/file.img"
will create a blktap2 device where read and write requests are passed
to the 'log' driver, then forwarded to the 'aio' driver.
Signed-off-by: Ryan O'Connor <rjo@cs.ubc.ca>
The tail containing the final PFN table, VCPU contexts and
shared_info_page is buffered, then the read loop is restarted.
After the first pass, incoming pages are buffered until the next tail
is read, completing a new consistent checkpoint. At this point, the
memory changes are applied and the loop begins again. When the fd read
fails, the tail buffer is processed.
Signed-off-by: Brendan Cully <brendan@cs.ubc.ca>
In addition to VBD read/write request#, add VBD read/write sector#
also. It makes VBD throughput observation easier. As the method to get
such info is OS dependent, just Linux version code is added.
Signed-off-by: Yang Xiaowei <xiaowei.yang@intel.com>
This patch fixes the recent regressions pointed out by Dexuan, keeping
pci passthrough working with stubdom too. In particular calling
device_create when pci_state == 'Initialising' is a mistake because
the state is always Initialising when attaching a device while
device_create has too be called only when the pci backend is missing.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
- Use the device and inode information provided by losetup to find
if the vbd backing file is in use on another vbd.
- Use losetup to find a free loopback device.
Signed-off-by: Gary Grebus <gary.grebus@oracle.com>
Avoid races between hotplug "add" and "remove" leading to "leaked"
loopback devices.
- Don't setup loopback device if xend is no longer waiting for the
vbd.
- Use the lock file to avoid add/remove races.
Signed-off-by: Gary Grebus <gary.grebus@oracle.com>
- Originally the max vcpu number for HVM guest is 32, this patch
extend the number to 128 on x86_64 hypervisor. (For i386 hypervisor,
the max vcpu number is still 32).
- This patch extends the mp-table size to fit more vcpus.
- HVM PV driver should call VCPUOP_register_vcpu_info hypercall to
initialize the vcpu info if the vcpu number is more than 32.
Signed-off-by: Dongxiao Xu <dongxiao.xu@intel.com>
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Add support for Xen ocontext records to enable device polices. The
default policy will not be changed and instructions have been added to
enable the new functionality. Examples on how to use the new policy
language have been added but commented out. The newest version of
checkpolicy (>= 2.0.20) and libsepol (>= 2.0.39) is needed in order to
compile it. Devices can be labeled and enforced using the following
new commands; pirqcon, iomemcon, ioportcon and pcidevicecon.
Signed-off-by : George Coker <gscoker@alpha.ncsc.mil>
Signed-off-by : Paul Nuzzi <pjnuzzi@tycho.ncsc.mil>
The pause and unpause paths are currently broken due to a missing
slash. I took advantage of the opportunity to remove code repetition,
repeated strings that should point to the proper constants, etc
From: Andres Lagar Cavilla <andreslc@cs.toronto.edu>
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
This patch exposes the getenforce and setenforce functionality for the
Flask XSM module.
Signed-off-by : Machon Gregory <mbgrego@tycho.ncsc.mil>
Signed-off-by : George S. Coker, II <gscoker@alpha.ncsc.mil>
This patch adds securty checks for pci passthrough related hypercalls
to enforce that the current domain owns the resources that it is about
to remap. It also adds a call to xc_assign_device to xend and removes
the PRIVILEGED_STUBDOMS flags.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
check_sharing() in blktapctrl does not work.
- It accesses to xenstore by using wrong paths.
- It compares image paths including image types.
- It misjudges a return value of strcmp().
This patch fixes those mistakes.
Signed-off-by: Masaki Kanno <kanno.masaki@jp.fujitsu.com>
running qemu with valgrind I found I couple of small memory leaks in
libxc, this patch fixes them.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
1. Calling VDB.set_bootable(True) results in string 'True' in managed
config file. After xend restart, conversion int(bootable) in
server/blkif.py fails.
2. selection of bootable disks in XendDomainInfo.py requires
type(bootable) == int not str, otherwise all disks are taken as
bootable.
This patch converts the bootable flag always to int.
Signed-off-by: Lutz Dube <Lutz.Dube@ts.fujitsu.com>
This patch fixes the circular dependency problem in the toolstack that
prevented pci coldplug from working with stubdoms: after creating the
stubdom we wait for it to be properly initialized before going
further. We release the domain lock while we wait.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
The new nomigrate option can be set to non-zero in vm.cfg
(for both hvm and pvm) to disallow a guest from being
migrated or restored. (Save is still allowed for the purpose
of checkpointing.) The option persists into a save file
and is also communicated into the hypervisor, the latter
for the purposes of a to-be-added hypercall for communicating
to guests that migration is disallowed (which will be
used initially for userland TSC-related sensing, but may
find other uses).
Signed-off-by: Dan Magenheimer <dan.magenheimer@oracle.com>
Keir Fraser