David Kiarie [Tue, 20 Sep 2016 15:42:34 +0000 (18:42 +0300)]
hw/i386: AMD IOMMU IVRS table
Add IVRS table for AMD IOMMU. Generate IVRS or DMAR
depending on emulated IOMMU.
Signed-off-by: David Kiarie <davidkiarie4@gmail.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
David Kiarie [Tue, 20 Sep 2016 15:42:33 +0000 (18:42 +0300)]
hw/i386: Introduce AMD IOMMU
Add AMD IOMMU emulaton to Qemu in addition to Intel IOMMU.
The IOMMU does basic translation, error checking and has a
minimal IOTLB implementation. This IOMMU bypassed the need
for target aborts by responding with IOMMU_NONE access rights
and exempts the region 0xfee00000-0xfeefffff from translation
as it is the q35 interrupt region.
We advertise features that are not yet implemented to please
the Linux IOMMU driver.
IOTLB aims at implementing commands on real IOMMUs which is
essential for debugging and may not offer any performance
benefits
Signed-off-by: David Kiarie <davidkiarie4@gmail.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
David Kiarie [Tue, 20 Sep 2016 15:42:32 +0000 (18:42 +0300)]
hw/i386/trace-events: Add AMD IOMMU trace events
Signed-off-by: David Kiarie <davidkiarie4@gmail.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
David Kiarie [Tue, 20 Sep 2016 15:42:31 +0000 (18:42 +0300)]
hw/pci: Prepare for AMD IOMMU
Introduce PCI macros from for use by AMD IOMMU
Signed-off-by: David Kiarie <davidkiarie4@gmail.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Stefan Hajnoczi [Wed, 21 Sep 2016 15:52:26 +0000 (16:52 +0100)]
virtio: handle virtqueue_get_head() errors
Stop processing the vring if virtqueue_get_head() fetches an
out-of-bounds head index.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Stefan Hajnoczi [Wed, 21 Sep 2016 15:52:25 +0000 (16:52 +0100)]
virtio: handle virtqueue_num_heads() errors
If the avail ring index is bogus virtqueue_num_heads() must return
-EINVAL.
The only caller is virtqueue_get_avail_bytes(). Return saying no bytes
are available when virtqueue_num_heads() fails.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Stefan Hajnoczi [Wed, 21 Sep 2016 15:52:24 +0000 (16:52 +0100)]
virtio: handle virtqueue_read_next_desc() errors
Stop processing the vring if an avail ring index is invalid.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Stefan Hajnoczi [Wed, 21 Sep 2016 15:52:23 +0000 (16:52 +0100)]
virtio: use unsigned int for virtqueue_get_avail_bytes() index
The virtio code uses int, unsigned int, and uint16_t for virtqueue
indices. The uint16_t is used for the low-level descriptor layout in
virtio_ring.h while code that isn't concerned with descriptor layout can
use unsigned int.
Use of int is problematic because it can result in signed/unsigned
comparison and incompatible int*/unsigned int* pointer types.
Make the virtqueue_get_avail_bytes() 'i' variable unsigned int. This
eliminates the need to introduce casts and modify code further in the
patches that follow.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Stefan Hajnoczi [Wed, 21 Sep 2016 15:52:22 +0000 (16:52 +0100)]
virtio: handle virtqueue_get_avail_bytes() errors
If the vring is invalid, tell the caller no bytes are available and mark
the device broken.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Stefan Hajnoczi [Wed, 21 Sep 2016 15:52:21 +0000 (16:52 +0100)]
virtio: handle virtqueue_map_desc() errors
Errors can occur during virtqueue_pop(), especially in
virtqueue_map_desc(). In order to handle this we must unmap iov[]
before returning NULL. The caller will consider the virtqueue empty and
the virtio_error() call will have marked the device broken.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Stefan Hajnoczi [Wed, 21 Sep 2016 15:52:20 +0000 (16:52 +0100)]
virtio: migrate vdev->broken flag
Send a subsection if the vdev->broken flag is set. This allows live
migration of broken virtio devices.
The subsection is only sent if vdev->broken has been set. In most cases
the flag will be clear and no subsection will be sent.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Stefan Hajnoczi [Wed, 21 Sep 2016 15:52:19 +0000 (16:52 +0100)]
virtio: stop virtqueue processing if device is broken
QEMU prints an error message and exits when the device enters an invalid
state. Terminating the process is heavy-handed. The guest may still be
able to function even if there is a bug in a virtio guest driver.
Moreover, exiting is a bug in nested virtualization where a nested guest
could DoS other nested guests by killing a pass-through virtio device.
I don't think this configuration is possible today but it is likely in
the future.
If the broken flag is set, do not process virtqueues or write back used
descriptors. The broken flag can be cleared again by resetting the
device.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Igor Mammedov [Mon, 19 Sep 2016 08:32:34 +0000 (10:32 +0200)]
target-i386: turn off CPU.l3-cache only for 2.7 and older machine types
commit (14c985cff target-i386: present virtual L3 cache info for vcpus)
misplaced compat property putting it in new 2.8 machine type
which would effectively to disable feature until 2.9 is released.
Intent of commit probably should be to disable feature for 2.7
and older while allowing not yet released 2.8 to have feature
enabled by default.
virtio back end uses set of buffers to facilitate I/O operations.
If its size is too large, 'cpu_physical_memory_map' could return
a null address. This would result in a null dereference while
un-mapping descriptors. Add check to avoid it.
Reported-by: Qinghao Tang <luodalongde@gmail.com> Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Check that qemu disconnects the backend that doesn't have the previously
acked features.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This test just checks that 2 virtio-net queues can be setup over
vhost-user and waits for them to be started.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Peter Maydell [Fri, 23 Sep 2016 15:15:33 +0000 (16:15 +0100)]
Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging
Block layer patches
# gpg: Signature made Fri 23 Sep 2016 12:59:46 BST
# gpg: using RSA key 0x7F09B272C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"
# Primary key fingerprint: DC3D EB15 9A9A F95D 3D74 56FE 7F09 B272 C88F 2FD6
* remotes/kevin/tags/for-upstream: (33 commits)
block: Remove BB interface from blockdev-add/del
qemu-iotests/141: Avoid blockdev-add with id
block: Avoid printing NULL string in error messages
qemu-iotests/139: Avoid blockdev-add with id
qemu-iotests/124: Avoid blockdev-add with id
qemu-iotests/118: Avoid blockdev-add with id
qemu-iotests/117: Avoid blockdev-add with id
qemu-iotests/087: Avoid blockdev-add with id
qemu-iotests/081: Avoid blockdev-add with id
qemu-iotests/071: Avoid blockdev-add with id
qemu-iotests/067: Avoid blockdev-add with id
qemu-iotests/041: Avoid blockdev-add with id
qemu-iotests/118: Test media change with qdev name
block: Accept device model name for block_set_io_throttle
block: Accept device model name for blockdev-change-medium
block: Accept device model name for eject
block: Accept device model name for x-blockdev-remove-medium
block: Accept device model name for x-blockdev-insert-medium
block: Accept device model name for blockdev-open/close-tray
qdev-monitor: Add blk_by_qdev_id()
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Fri, 23 Sep 2016 13:26:12 +0000 (14:26 +0100)]
Merge remote-tracking branch 'remotes/dgibson/tags/ppc-for-2.8-20160923' into staging
ppc patch queue 2016-09-23
This pull request supersedes ppc-for-2.8-20160922. There was a clang
build error in that, and I've also added one extra patch in the new pull.
Included in this set of ppc and spapr patches are:
* TCG implementations for more POWER9 instructions
* Some preliminary XICS fixes in preparataion for the pnv machine type
* A significant ADB (Macintosh kbd/mouse) cleanup
* Some conversions to use trace instead of debug macros
* Fixes to correctly handle global TLB flush synchronization in
TCG. This is already a bug, but it will have much more impact
when we get MTTCG
* Add more qtest testcases for Power
* Some MAINTAINERS updates
* Assorted bugfixes
* Add the basics of NUMA associativity to the spapr PCI host bridge
This touches some test files and monitor.c which are technically
outside the ppc code, but coming through this tree because the changes
are primarily of interest to ppc.
* remotes/dgibson/tags/ppc-for-2.8-20160923: (45 commits)
spapr_pci: Add numa node id
monitor: fix crash for platforms without a CPU 0
linux-user: ppc64: fix ARCH_206 bit in AT_HWCAP
ppc/kvm: Mark 64kB page size support as disabled if not available
ppc/xics: An ICS with offset 0 is assumed to be uninitialized
ppc/xics: account correct irq status
Enable H_CLEAR_MOD and H_CLEAR_REF hypercalls on KVM/PPC64.
target-ppc: tlbie/tlbivax should have global effect
target-ppc: add flag in check_tlb_flush()
target-ppc: add TLB_NEED_LOCAL_FLUSH flag
spapr: Introduce sPAPRCPUCoreClass
target-ppc: implement darn instruction
target-ppc: add stxsi[bh]x instruction
target-ppc: add lxsi[bw]zx instruction
target-ppc: add xxspltib instruction
target-ppc: consolidate store conditional
target-ppc: move out stqcx impementation
target-ppc: consolidate load with reservation
target-ppc: convert st[16,32,64]r to use new macro
target-ppc: convert st64 to use new macro
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Fri, 23 Sep 2016 12:10:43 +0000 (13:10 +0100)]
Merge remote-tracking branch 'remotes/famz/tags/various-pull-request' into staging
# gpg: Signature made Fri 23 Sep 2016 05:58:28 BST
# gpg: using RSA key 0xCA35624C6A9171C6
# gpg: Good signature from "Fam Zheng <famz@redhat.com>"
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 5003 7CB7 9706 0F76 F021 AD56 CA35 624C 6A91 71C6
* remotes/famz/tags/various-pull-request: (23 commits)
docker: exec $CMD
docker: Terminate instances at SIGTERM and SIGHUP
docker: Support showing environment information
docker: Print used options before doing configure
docker: Flatten default target list in test-quick
docker: Update fedora image to latest
docker: Generate /packages.txt in ubuntu image
docker: Generate /packages.txt in fedora image
docker: Generate /packages.txt in centos6 image
tests: Ignore test-uuid
Add UUID files to MAINTAINERS
tests: Add uuid tests
uuid: Tighten uuid parse
vl: Switch qemu_uuid to QemuUUID
configure: Remove detection code for UUID
tests: No longer dependent on CONFIG_UUID
crypto: Switch to QEMU UUID API
vpc: Use QEMU UUID API
vdi: Use QEMU UUID API
vhdx: Use QEMU UUID API
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
# Conflicts:
# tests/Makefile.include
Kevin Wolf [Wed, 21 Sep 2016 12:56:11 +0000 (14:56 +0200)]
block: Remove BB interface from blockdev-add/del
With this patch, blockdev-add always works on a node level, i.e. it
creates a BDS, but no BB. Consequently, x-blockdev-del doesn't need the
'device' option any more, but 'node-name' becomes mandatory.
Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
Kevin Wolf [Wed, 21 Sep 2016 12:56:09 +0000 (14:56 +0200)]
block: Avoid printing NULL string in error messages
Even for nodes that have a BlockBackend attached, bdrv_get_parent_name()
can return NULL if the BB is anonymous (e.g. it belongs to a block job
or a device that was created with a drive=<node-name> option).
Remove the information from the error message. The user probably knows
already why the node is still in use.
Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
Kevin Wolf [Wed, 21 Sep 2016 12:56:08 +0000 (14:56 +0200)]
qemu-iotests/139: Avoid blockdev-add with id
We want to remove the 'id' option for blockdev-add. This removes one
user of the option and makes it use only node names.
Some test cases that used to work with an unattached BlockBackend are
removed, either because they don't make sense with an attached device or
because the equivalent test case with an attached device already exists.
Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
Kevin Wolf [Wed, 21 Sep 2016 12:56:04 +0000 (14:56 +0200)]
qemu-iotests/087: Avoid blockdev-add with id
We want to remove the 'id' option for blockdev-add. This removes one
user of the option and makes it use only node names.
The test cases that test conflicts between the 'id' option to
blockdev-add and existing block devices or the 'node-name' of the same
command can be removed because it won't be possible to specify this at
the end of the series.
Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
Kevin Wolf [Wed, 21 Sep 2016 12:56:01 +0000 (14:56 +0200)]
qemu-iotests/067: Avoid blockdev-add with id
We want to remove the 'id' option for blockdev-add. This removes one
user of the option and makes it use only node names.
In order to keep the test meaningful, some instances of query-block that
want to check whether the node still exists and would now turn up empty
must be converted to query-named-block-nodes (which also return the
protocol level node, but that shouldn't hurt).
Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
Kevin Wolf [Tue, 20 Sep 2016 11:38:49 +0000 (13:38 +0200)]
qemu-iotests/118: Test media change with qdev name
We just added the option to use qdev device names in all device related
block QMP commands. This patch converts some of the test cases in 118 to
use qdev device names instead of BlockBackend names to cover the new
way. It converts cases for each of the media change commands, but only
for CD-ROM and not everywhere, so that the old way is still tested, too.
Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
Kevin Wolf [Tue, 20 Sep 2016 11:38:45 +0000 (13:38 +0200)]
block: Accept device model name for x-blockdev-remove-medium
In order to remove the need for BlockBackend names in the external API,
we want to allow qdev device names in all device related commands.
This converts x-blockdev-remove-medium to accept a qdev device name.
As the command is experimental, we can still remove the 'device' option
that uses the BlockBackend name. This requires some test case changes
and is left for another series.
Kevin Wolf [Tue, 20 Sep 2016 11:38:44 +0000 (13:38 +0200)]
block: Accept device model name for x-blockdev-insert-medium
In order to remove the need for BlockBackend names in the external API,
we want to allow qdev device names in all device related commands.
This converts x-blockdev-insert-medium to accept a qdev device name.
As the command is experimental, we can still remove the 'device' option
that uses the BlockBackend name. This requires some test case changes
and is left for another series.
Alberto Garcia [Thu, 15 Sep 2016 14:53:04 +0000 (17:53 +0300)]
commit: Add 'base' to the reopen queue before 'overlay_bs'
Now that we're checking for duplicates in the reopen queue, there's no
need to force a specific order in which the queue is constructed so we
can revert 3db2bd5508c86a1605258bc77c9672d93b5c350e.
Since both ways of constructing the queue are now valid, this patch
doesn't have any effect on the behavior of QEMU and is not strictly
necessary. However it can help us check that the fix for the reopen
queue is robust: if it stops working properly at some point, iotest
040 will break.
Signed-off-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Alberto Garcia [Thu, 15 Sep 2016 14:53:03 +0000 (17:53 +0300)]
block: Don't queue the same BDS twice in bdrv_reopen_queue_child()
bdrv_reopen_queue_child() assumes that a BlockDriverState is never
added twice to BlockReopenQueue.
That's however not the case: commit_start() adds 'base' (and its
children) to a new reopen queue, and then 'overlay_bs' (and its
children, which include 'base') to the same queue. The effect of this
is that the first set of options is ignored and overriden by the
second.
We fixed this by swapping the order in which both BDSs were added to
the queue in 3db2bd5508c86a1605258bc77c9672d93b5c350e. This patch
checks if a BDS is already in the reopen queue and keeps its options.
Signed-off-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Alberto Garcia [Thu, 15 Sep 2016 14:53:02 +0000 (17:53 +0300)]
block: Add "read-only" to the options QDict
This adds the "read-only" option to the QDict. One important effect of
this change is that when a child inherits options from its parent, the
existing "read-only" mode can be preserved if it was explicitly set
previously.
This addresses scenarios like this:
[E] <- [D] <- [C] <- [B] <- [A]
In this case, if we reopen [D] with read-only=off, and later reopen
[B], then [D] will not inherit read-only=on from its parent during the
bdrv_reopen_queue_child() stage.
The BDRV_O_RDWR flag is not removed yet, but its keep in sync with the
value of the "read-only" option.
Signed-off-by: Alberto Garcia <berto@igalia.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Alberto Garcia [Thu, 15 Sep 2016 14:53:01 +0000 (17:53 +0300)]
block: Update bs->open_flags earlier in bdrv_open_common()
We're only doing this immediately before opening the image, but
bs->open_flags is used earlier in the function. At the moment this is
not causing problems because none of the checked flags are modified by
update_flags_from_options(), but this will change when we introduce
the "read-only" option.
This patch calls update_flags_from_options() at the beginning of the
function, immediately after creating the QemuOpts.
Signed-off-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Alberto Garcia [Thu, 15 Sep 2016 14:53:00 +0000 (17:53 +0300)]
block: Set BDRV_O_ALLOW_RDWR and snapshot_options before storing the flags
If an image is opened with snapshot=on, its flags are modified by
bdrv_backing_options() and then bs->open_flags is updated accordingly.
This last step is unnecessary if we calculate the new flags before
setting bs->open_flags.
Soon we'll introduce the "read-only" option, and then we'll need to
be able to modify its value in the QDict when snapshot=on. This is
more cumbersome if bs->options is already set. This patch simplifies
that. Other than that, there are no semantic changes. Although it
might seem that bs->options can have a different value now because
it is stored after calling bdrv_backing_options(), this call doesn't
actually modify them in this scenario.
The code that sets BDRV_O_ALLOW_RDWR is also moved for the same
reason.
Signed-off-by: Alberto Garcia <berto@igalia.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
tests: allow to specify list of formats to test for check-block.sh
This would make code better and allow to test specific format.
Signed-off-by: Denis V. Lunev <den@openvz.org> CC: Stefan Hajnoczi <stefanha@redhat.com> CC: Kevin Wolf <kwolf@redhat.com> CC: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
The copy_sectors() code was originally using the 'sector'
parameter for encryption, which was passed in by the caller
from the QCowL2Meta.offset field (aka the guest logical
offset).
After the change, the code is using 'cluster_offset' which
was passed in from QCow2L2Meta.alloc_offset field (aka the
host physical offset).
This would cause the data to be encrypted using an incorrect
initialization vector which will in turn cause later reads
to return garbage.
Although current qcow2 built-in encryption is blocked from
usage in the emulator, one could still hit this if writing
to the file via qemu-{img,io,nbd} commands.
Cc: qemu-stable@nongnu.org Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* remotes/bonzini/tags/for-upstream:
kvm: fix events.flags (KVM_VCPUEVENT_VALID_SMM) overwritten by 0
scripts: Add a script to check for bug URLs in the git log
msmouse: Fix segfault caused by free the chr before chardev cleanup.
iscsi: Fix divide-by-zero regression on raw SG devices
kvm: apic: set APIC base as part of kvm_apic_put
target-i386: introduce kvm_put_one_msr
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Such output may be further improved by providing strace-related functions
that handle only particular syscalls, but this is beyond the scope of
this patch.
Signed-off-by: Aleksandar Markovic <aleksandar.markovic@imgtec.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Acked-by: Riku Voipio <riku.voipio@linaro.org> Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
linux-user: Add missing TARGET_EDQUOT error code for Mips
EDQUOT is defined for Mips platform in Linux kernel in such a way
that it has different value than on most other platforms. However,
correspondent TARGET_EDQUOT for Mips is missing in Qemu code. Moreover,
TARGET_EDQUOT is missing from the table for conversion of error codes
from host to target. This patch fixes these problems.
Without this patch, syscalls add_key(), keyctl(), link(), mkdir(), mknod(),
open(), rename(), request_key(), setxattr(), symlink(), and write() will not
be able to return the right error code in some scenarios on Mips platform.
(Some of these syscalls are not yet supported in Qemu, but once they are
supported, they will need correct EDQUOT handling.)
Signed-off-by: Aleksandar Markovic <aleksandar.markovic@imgtec.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Acked-by: Riku Voipio <riku.voipio@linaro.org> Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
linux-user: Fix certain argument alignment cases for Mips64
The function that is changed in this patch is supposed to indicate that
there was certain argument rearrangement related to 64-bit arguments on
32-bit platforms. The background on such rearrangements can be found,
for example, in the man page for syscall(2).
However, for 64-bit Mips architectures there is no such rearrangement,
and this patch reflects it.
Signed-off-by: Aleksandar Rikalo <aleksandar.rikalo@imgtec.com> Signed-off-by: Aleksandar Markovic <aleksandar.markovic@imgtec.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Leon Alrae <leon.alrae@imgtec.com> Acked-by: Riku Voipio <riku.voipio@linaro.org> Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
linux-user: Fix structure target_flock definition for Mips
Structure flock is defined for Mips in a way different from any
other platform. For reference, see Linux kernel source code files:
arch/mips/include/uapi/asm/fcntl.h, line 63 (for Mips)
include/uapi/asm-generic/fcntl.h, line 195 (for all other platforms)
This patch fix this problem, by amending structure target_flock,
for Mips only.
Besides, this patch fixes LTP tests fcntl11, fcntl17, fcntl19, fcntl20,
and fcntl21, which are currently failing, if executed in Qemu user mode
for Mips platforms.
Signed-off-by: Aleksandar Markovic <aleksandar.markovic@imgtec.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Leon Alrae <leon.alrae@imgtec.com> Acked-by: Riku Voipio <riku.voipio@linaro.org> Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
André Draszik [Mon, 25 Jul 2016 23:42:45 +0000 (00:42 +0100)]
target-mips: add 24KEc CPU definition
Define a new CPU definition supporting 24KEc cores, similar to
the existing 24Kc, but with added support for DSP instructions
and MIPS16e (and without FPU).
Signed-off-by: André Draszik <git@andred.net> Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Signed-off-by: Fam Zheng <famz@redhat.com>
Message-Id: <1474432046-325-14-git-send-email-famz@redhat.com> Reviewed-by: Jeff Cody <jcody@redhat.com> Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
sscanf is relatively loose (tolerate) on some invalid formats that we
should fail instead of generating a wrong uuid structure, like with
whitespaces and short strings.
Add and use a helper function to first check the format.
Signed-off-by: Fam Zheng <famz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Jeff Cody <jcody@redhat.com>
Message-Id: <1474432046-325-11-git-send-email-famz@redhat.com>
crypto now uses built-in uuid implementation, so this check is not
needed.
Signed-off-by: Fam Zheng <famz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Jeff Cody <jcody@redhat.com>
Message-Id: <1474432046-325-8-git-send-email-famz@redhat.com> Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
The uuid generation doesn't return error, so update the function
signature and calling code accordingly.
Signed-off-by: Fam Zheng <famz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Jeff Cody <jcody@redhat.com>
Message-Id: <1474432046-325-7-git-send-email-famz@redhat.com> Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
This removes our dependency to libuuid, so that the driver can always be
built.
Similar to how we handled data plane configure options, --enable-vhdx
and --disable-vhdx are also changed to a nop with a message saying it's
obsolete.
Signed-off-by: Fam Zheng <famz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Jeff Cody <jcody@redhat.com>
Message-Id: <1474432046-325-4-git-send-email-famz@redhat.com>
A number of different places across the code base use CONFIG_UUID. Some
of them are soft dependency, some are not built if libuuid is not
available, some come with dummy fallback, some throws runtime error.
It is hard to maintain, and hard to reason for users.
Since UUID is a simple standard with only a small number of operations,
it is cleaner to have a central support in libqemuutil. This patch adds
qemu_uuid_* functions that all uuid users in the code base can
rely on. Except for qemu_uuid_generate which is new code, all other
functions are just copy from existing fallbacks from other files.
Note that qemu_uuid_parse is moved without updating the function
signature to use QemuUUID, to keep this patch simple.
Signed-off-by: Fam Zheng <famz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Jeff Cody <jcody@redhat.com>
Message-Id: <1474432046-325-2-git-send-email-famz@redhat.com>
docker: Handle exceptions when looking for docker command
When trying to run docker tests on a host without the docker
command, we get the following Python backtrace:
$ make docker-test-quick@centos6 V=1
.../qemu/tests/docker/docker.py build qemu:centos6 .../qemu/tests/docker/dockerfiles/centos6.docker
Traceback (most recent call last):
File ".../qemu/tests/docker/docker.py", line 339, in <module>
sys.exit(main())
File ".../qemu/tests/docker/docker.py", line 336, in main
return args.cmdobj.run(args, argv)
File ".../qemu/tests/docker/docker.py", line 231, in run
dkr = Docker()
File ".../qemu/tests/docker/docker.py", line 98, in __init__
self._command = _guess_docker_command()
File ".../qemu/tests/docker/docker.py", line 41, in _guess_docker_command
stdout=DEVNULL, stderr=DEVNULL) == 0:
File "/usr/lib64/python2.7/subprocess.py", line 523, in call
return Popen(*popenargs, **kwargs).wait()
File "/usr/lib64/python2.7/subprocess.py", line 711, in __init__
errread, errwrite)
File "/usr/lib64/python2.7/subprocess.py", line 1343, in _execute_child
raise child_exception
OSError: [Errno 2] No such file or directory
.../qemu/tests/docker/Makefile.include:47: recipe for target 'docker-image-centos6' failed
make: *** [docker-image-centos6] Error 1
Change _guess_docker_command() to handle OSError exceptions
raised by subprocess.call(), so we will keep looking for other
commands and print a better error message.
New output will be:
$ make docker-test-quick@centos6 V=1
.../qemu/tests/docker/docker.py build qemu:centos6 .../qemu/tests/docker/dockerfiles/centos6.docker
Traceback (most recent call last):
File ".../qemu/tests/docker/docker.py", line 343, in <module>
sys.exit(main())
File ".../qemu/tests/docker/docker.py", line 340, in main
return args.cmdobj.run(args, argv)
File ".../qemu/tests/docker/docker.py", line 235, in run
dkr = Docker()
File ".../qemu/tests/docker/docker.py", line 102, in __init__
self._command = _guess_docker_command()
File ".../qemu/tests/docker/docker.py", line 49, in _guess_docker_command
commands_txt)
Exception: Cannot find working docker command. Tried:
docker
sudo -n docker
.../qemu/tests/docker/Makefile.include:47: recipe for target 'docker-image-centos6' failed
make: *** [docker-image-centos6] Error 1
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <1474369559-16903-1-git-send-email-ehabkost@redhat.com>
[exceptions.OSError -> OSError and drop the import. - Fam] Signed-off-by: Fam Zheng <famz@redhat.com>
This adds a numa id property to a PHB to allow linking passed PCI device
to CPU/memory. It is up to the management stack to do CPU/memory pinning
to the node with the actual PCI device.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
[dwg: Renamed property from "node" to "numa_node" to match the similar
one in the pxb device] Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
David Gibson [Wed, 21 Sep 2016 05:29:26 +0000 (15:29 +1000)]
monitor: fix crash for platforms without a CPU 0
Now that we allow CPU hot unplug on a few platforms, we can end up in a
situation where we don't have a CPU with index 0. Or at least we could,
if we didn't have code to explicitly prohibit unplug of CPU 0.
Longer term we want to allow CPU 0 unplug, this patch is an early step in
allowing this, by removing an assumption in the monitor code that CPU 0
always exists.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
[dwg: Rewrote commit message to better explain background] Reviewed-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Michael Walle [Wed, 21 Sep 2016 09:57:05 +0000 (11:57 +0200)]
linux-user: ppc64: fix ARCH_206 bit in AT_HWCAP
Only the POWER[789] CPUs should have the ARCH_206 bit set. This is what the
linux kernel does. I guess this was also the intention of commit 0e019746.
We have to make sure all *206 bits are set.
Before this patch, the flags check in the GET_FEATURES2 macro returned true
if _any_ bit was set. This worked well as long as there was only one bit
set in the 'flag' parameter. But as explained before, we have to make sure
all bits in the 'flag' parameter are set.
Signed-off-by: Michael Walle <michael@walle.cc> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Thomas Huth [Wed, 21 Sep 2016 09:42:15 +0000 (11:42 +0200)]
ppc/kvm: Mark 64kB page size support as disabled if not available
QEMU currently refuses to start with KVM-PR and only prints out
qemu: fatal: Unknown MMU model 851972
when being started there. This is because commit 4322e8ced5aaac719
("ppc: Fix 64K pages support in full emulation") introduced a new
POWERPC_MMU_64K bit to indicate support for this page size, but
it never gets cleared on KVM-PR if the host kernel does not support
this. Thus we've got to turn off this bit in the mmu_model for KVM-PR.
Signed-off-by: Thomas Huth <thuth@redhat.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
ppc/xics: An ICS with offset 0 is assumed to be uninitialized
This will make life easier for dealing with dynamically configured
ICSes such as PHB3
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Fix inconsistent irq status, because of this in the trace logs, for e.g.
LSI status was 0x7, i.e. XICS_STATUS_ASSERTED, XICS_STATUS_SENT and
XICS_STATUS_REJECTED all set, which did not make sense. So the REJECTED
would have been set in earlier interrupt cycle, and then asserted and
sent in this current one.
Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Nathan Whitehorn [Tue, 30 Aug 2016 01:02:47 +0000 (01:02 +0000)]
Enable H_CLEAR_MOD and H_CLEAR_REF hypercalls on KVM/PPC64.
These are mandatory per PAPR and available on Linux 4.3 and newer kernels. The calls in question are required to run FreeBSD guests with reasonable performance, so enable them if possible.
Signed-off-by: Nathan Whitehorn <nwhitehorn@freebsd.org>
[dwg: Added a stub to fix compile without KVM (e.g. on x86 host)] Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
target-ppc: tlbie/tlbivax should have global effect
tlbie (BookS) and tlbivax (BookE) plus the H_CALLs(pseries) should have
a global effect.
Introduces TLB_NEED_GLOBAL_FLUSH flag. During lazy tlb flush, after
taking care of pending local flushes, check broadcast flush(at context
synchronizing event ptesync/tlbsync, etc) is needed. Depending on the
bitmask state of the tlb_need_flush, tlb is flushed from other cpus if
needed and the flags are cleared.
Suggested-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
[dwg: Use 'true' instead of '1' for call to check_tlb_flush()] Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
We flush the qemu TLB lazily. check_tlb_flush is called whenever we hit
a context synchronizing event or instruction that requires a pending
flush to be performed.
However, we fail to handle broadcast TLB flush operations. In order to
fix that efficiently, we want to differentiate whether check_tlb_flush()
needs to only apply pending local flushes (isync instructions,
interrupts, ...) or also global pending flush operations. The latter is
only needed when executing instructions that are defined architecturally
as synchronizing global TLB flush operations. This in our case is
ptesync on BookS and tlbsync on BookE along with the paravirtualized
hypervisor calls.
Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
[dwg: Changed gen_check_tlb_flush() to also take a bool, and fixed
some spelling errors in commit message] Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
projects / mirror_qemu.git / log