Commit Graph

7435 Commits

Author SHA1 Message Date
Peter Maydell
0f01b9fdd4 Block layer patches:
- Active mirror (blockdev-mirror copy-mode=write-blocking)
 - bdrv_drain_*() fixes and test cases
 - Fix crash with scsi-hd and drive_del
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Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging

Block layer patches:

- Active mirror (blockdev-mirror copy-mode=write-blocking)
- bdrv_drain_*() fixes and test cases
- Fix crash with scsi-hd and drive_del

# gpg: Signature made Mon 18 Jun 2018 17:44:10 BST
# gpg:                using RSA key 7F09B272C88F2FD6
# 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: (35 commits)
  iotests: Add test for active mirroring
  block/mirror: Add copy mode QAPI interface
  block/mirror: Add active mirroring
  job: Add job_progress_increase_remaining()
  block/mirror: Add MirrorBDSOpaque
  block/dirty-bitmap: Add bdrv_dirty_iter_next_area
  test-hbitmap: Add non-advancing iter_next tests
  hbitmap: Add @advance param to hbitmap_iter_next()
  block: Generalize should_update_child() rule
  block/mirror: Use source as a BdrvChild
  block/mirror: Wait for in-flight op conflicts
  block/mirror: Use CoQueue to wait on in-flight ops
  block/mirror: Convert to coroutines
  block/mirror: Pull out mirror_perform()
  block: fix QEMU crash with scsi-hd and drive_del
  test-bdrv-drain: Test graph changes in drain_all section
  block: Allow graph changes in bdrv_drain_all_begin/end sections
  block: ignore_bds_parents parameter for drain functions
  block: Move bdrv_drain_all_begin() out of coroutine context
  block: Allow AIO_WAIT_WHILE with NULL ctx
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-19 16:04:43 +01:00
Peter Maydell
59926de998 vga: add ramfb, print virglrenderer version
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Merge remote-tracking branch 'remotes/kraxel/tags/vga-20180618-pull-request' into staging

vga: add ramfb, print virglrenderer version

# gpg: Signature made Mon 18 Jun 2018 10:57:38 BST
# gpg:                using RSA key 4CB6D8EED3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>"
# Primary key fingerprint: A032 8CFF B93A 17A7 9901  FE7D 4CB6 D8EE D3E8 7138

* remotes/kraxel/tags/vga-20180618-pull-request:
  Add ramfb MAINTAINERS entry
  hw/display: add standalone ramfb device
  hw/display: add ramfb, a simple boot framebuffer living in guest ram
  configure: print virglrenderer version

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-19 13:43:35 +01:00
Max Reitz
481debaa32 block/mirror: Add copy mode QAPI interface
This patch allows the user to specify whether to use active or only
background mode for mirror block jobs.  Currently, this setting will
remain constant for the duration of the entire block job.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Message-id: 20180613181823.13618-14-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
2018-06-18 17:05:16 +02:00
Max Reitz
62f1360059 job: Add job_progress_increase_remaining()
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20180613181823.13618-12-mreitz@redhat.com
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2018-06-18 17:05:11 +02:00
Max Reitz
72d10a9421 block/dirty-bitmap: Add bdrv_dirty_iter_next_area
This new function allows to look for a consecutively dirty area in a
dirty bitmap.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 20180613181823.13618-10-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
2018-06-18 17:04:57 +02:00
Max Reitz
a33fbb4f8b hbitmap: Add @advance param to hbitmap_iter_next()
This new parameter allows the caller to just query the next dirty
position without moving the iterator.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 20180613181823.13618-8-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
2018-06-18 17:04:55 +02:00
Kevin Wolf
0f12264e7a block: Allow graph changes in bdrv_drain_all_begin/end sections
bdrv_drain_all_*() used bdrv_next() to iterate over all root nodes and
did a subtree drain for each of them. This works fine as long as the
graph is static, but sadly, reality looks different.

If the graph changes so that root nodes are added or removed, we would
have to compensate for this. bdrv_next() returns each root node only
once even if it's the root node for multiple BlockBackends or for a
monitor-owned block driver tree, which would only complicate things.

The much easier and more obviously correct way is to fundamentally
change the way the functions work: Iterate over all BlockDriverStates,
no matter who owns them, and drain them individually. Compensation is
only necessary when a new BDS is created inside a drain_all section.
Removal of a BDS doesn't require any action because it's gone afterwards
anyway.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-06-18 15:03:25 +02:00
Kevin Wolf
6cd5c9d7b2 block: ignore_bds_parents parameter for drain functions
In the future, bdrv_drained_all_begin/end() will drain all invidiual
nodes separately rather than whole subtrees. This means that we don't
want to propagate the drain to all parents any more: If the parent is a
BDS, it will already be drained separately. Recursing to all parents is
unnecessary work and would make it an O(n²) operation.

Prepare the drain function for the changed drain_all by adding an
ignore_bds_parents parameter to the internal implementation that
prevents the propagation of the drain to BDS parents. We still (have to)
propagate it to non-BDS parents like BlockBackends or Jobs because those
are not drained separately.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-06-18 15:03:25 +02:00
Kevin Wolf
4d22bbf4ef block: Allow AIO_WAIT_WHILE with NULL ctx
bdrv_drain_all() wants to have a single polling loop for draining the
in-flight requests of all nodes. This means that the AIO_WAIT_WHILE()
condition relies on activity in multiple AioContexts, which is polled
from the mainloop context. We must therefore call AIO_WAIT_WHILE() from
the mainloop thread and use the AioWait notification mechanism.

Just randomly picking the AioContext of any non-mainloop thread would
work, but instead of bothering to find such a context in the caller, we
can just as well accept NULL for ctx.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-06-18 15:03:25 +02:00
Kevin Wolf
dcf94a23b1 block: Don't poll in parent drain callbacks
bdrv_do_drained_begin() is only safe if we have a single
BDRV_POLL_WHILE() after quiescing all affected nodes. We cannot allow
that parent callbacks introduce a nested polling loop that could cause
graph changes while we're traversing the graph.

Split off bdrv_do_drained_begin_quiesce(), which only quiesces a single
node without waiting for its requests to complete. These requests will
be waited for in the BDRV_POLL_WHILE() call down the call chain.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-06-18 15:03:25 +02:00
Kevin Wolf
fe4f0614ef block: Drain recursively with a single BDRV_POLL_WHILE()
Anything can happen inside BDRV_POLL_WHILE(), including graph
changes that may interfere with its callers (e.g. child list iteration
in recursive callers of bdrv_do_drained_begin).

Switch to a single BDRV_POLL_WHILE() call for the whole subtree at the
end of bdrv_do_drained_begin() to avoid such effects. The recursion
happens now inside the loop condition. As the graph can only change
between bdrv_drain_poll() calls, but not inside of it, doing the
recursion here is safe.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-06-18 15:03:25 +02:00
Kevin Wolf
89bd030533 block: Really pause block jobs on drain
We already requested that block jobs be paused in .bdrv_drained_begin,
but no guarantee was made that the job was actually inactive at the
point where bdrv_drained_begin() returned.

This introduces a new callback BdrvChildRole.bdrv_drained_poll() and
uses it to make bdrv_drain_poll() consider block jobs using the node to
be drained.

For the test case to work as expected, we have to switch from
block_job_sleep_ns() to qemu_co_sleep_ns() so that the test job is even
considered active and must be waited for when draining the node.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-06-18 15:03:25 +02:00
Kevin Wolf
1cc8e54ada block: Avoid unnecessary aio_poll() in AIO_WAIT_WHILE()
Commit 91af091f92 added an additional aio_poll() to BDRV_POLL_WHILE()
in order to make sure that all pending BHs are executed on drain. This
was the wrong place to make the fix, as it is useless overhead for all
other users of the macro and unnecessarily complicates the mechanism.

This patch effectively reverts said commit (the context has changed a
bit and the code has moved to AIO_WAIT_WHILE()) and instead polls in the
loop condition for drain.

The effect is probably hard to measure in any real-world use case
because actual I/O will dominate, but if I run only the initialisation
part of 'qemu-img convert' where it calls bdrv_block_status() for the
whole image to find out how much data there is copy, this phase actually
needs only roughly half the time after this patch.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
2018-06-18 15:03:25 +02:00
Gerd Hoffmann
94692dcd71 hw/display: add standalone ramfb device
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Tested-by: Laszlo Ersek <lersek@redhat.com>
Message-id: 20180613122948.18149-3-kraxel@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2018-06-18 11:22:15 +02:00
Gerd Hoffmann
995b30179b hw/display: add ramfb, a simple boot framebuffer living in guest ram
The boot framebuffer is expected to be configured by the firmware, so it
uses fw_cfg as interface.  Initialization goes as follows:

  (1) Check whenever etc/ramfb is present.
  (2) Allocate framebuffer from RAM.
  (3) Fill struct RAMFBCfg, write it to etc/ramfb.

Done.  You can write stuff to the framebuffer now, and it should appear
automagically on the screen.

Note that this isn't very efficient because it does a full display
update on each refresh.  No dirty tracking.  Dirty tracking would have
to be active for the whole ram slot, so that wouldn't be very efficient
either.  For a boot display which is active for a short time only this
isn't a big deal.  As permanent guest display something better should be
used (if possible).

This is the ramfb core code.  Some windup is needed for display devices
which want have a ramfb boot display.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Tested-by: Laszlo Ersek <lersek@redhat.com>
Message-id: 20180613122948.18149-2-kraxel@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2018-06-18 11:22:15 +02:00
David Gibson
7388efafc2 target/ppc, spapr: Move VPA information to machine_data
CPUPPCState currently contains a number of fields containing the state of
the VPA.  The VPA is a PAPR specific concept covering several guest/host
shared memory areas used to communicate some information with the
hypervisor.

As a PAPR concept this is really machine specific information, although it
is per-cpu, so it doesn't really belong in the core CPU state structure.

There's also other information that's per-cpu, but platform/machine
specific.  So create a (void *)machine_data in PowerPCCPU which can be
used by the machine to locate per-cpu data.  Intialization, lifetime and
cleanup of machine_data is entirely up to the machine type.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Greg Kurz <groug@kaod.org>
Tested-by: Greg Kurz <groug@kaod.org>
2018-06-16 16:32:50 +10:00
David Gibson
08304a8689 pnv_core: Allocate cpu thread objects individually
Currently, we allocate space for all the cpu objects within a single core
in one big block.  This was copied from an older version of the spapr code
and requires some ugly pointer manipulation to extract the individual
objects.

This design was due to a misunderstanding of qemu lifetime conventions and
has already been changed in spapr (in 94ad93bd "spapr_cpu_core: instantiate
CPUs separately".

Make an equivalent change in pnv_core to get rid of the nasty pointer
arithmetic.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Greg Kurz <groug@kaod.org>
2018-06-16 16:32:33 +10:00
Mark Cave-Ayland
b6c7e42f74 mos6522: expose mos6522_update_irq() through MOS6522DeviceClass
In the case where we have an interrupt generated externally from inputs to
bits 1 and 2 of port A and/or port B, it is necessary to expose
mos6522_update_irq() so it can be called by the interrupt source.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-06-16 16:32:33 +10:00
Mark Cave-Ayland
d811d61fbc mac_newworld: add PMU device
The PMU device supercedes the CUDA device found on older New World Macs and
is supported by a larger number of guest OSs from OS 9 to OS X 10.5.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-06-16 16:32:33 +10:00
Mark Cave-Ayland
84051eb400 adb: add property to disable direct reg 3 writes
MacOS 9 has a bug in its PMU driver whereby after configuring the ADB bus
devices it sends another write to reg 3 on both devices resetting them
both back to the same address.

Add a new disable_direct_reg3_writes property to ADBDevice to disable these
direct writes which can enabled just for the upcoming pmu-adb support.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-06-16 16:32:33 +10:00
Mark Cave-Ayland
7c4166a971 mac_newworld: add gpios to macio devices with PMU enabled
PMU-enabled New World Macs expose their GPIOs via a separate memory region
within the macio device.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-06-16 16:32:33 +10:00
Mark Cave-Ayland
f1114c17ee mac_newworld: add via machine option to control mac99 VIA/ADB configuration
This option allows the VIA configuration to be controlled between 3
different possible setups: cuda, pmu-adb and pmu with USB rather than ADB
keyboard/mouse.

For the moment we don't do anything with the configuration except to pass
it to the macio device (the via-cuda parent) and also to the firmware via
the fw_cfg interface so that it can present the correct device tree.

The default is cuda which is the current default and so will have no
change in behaviour.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-06-16 16:32:33 +10:00
Peter Maydell
2ef2f16781 Migration pull 2018-06-15
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Merge remote-tracking branch 'remotes/dgilbert/tags/pull-migration-20180615a' into staging

Migration pull 2018-06-15

# gpg: Signature made Fri 15 Jun 2018 16:13:17 BST
# gpg:                using RSA key 0516331EBC5BFDE7
# gpg: Good signature from "Dr. David Alan Gilbert (RH2) <dgilbert@redhat.com>"
# Primary key fingerprint: 45F5 C71B 4A0C B7FB 977A  9FA9 0516 331E BC5B FDE7

* remotes/dgilbert/tags/pull-migration-20180615a:
  migration: calculate expected_downtime with ram_bytes_remaining()
  migration/postcopy: Wake rate limit sleep on postcopy request
  migration: Wake rate limiting for urgent requests
  migration/postcopy: Add max-postcopy-bandwidth parameter
  migration: introduce migration_update_rates
  migration: fix counting xbzrle cache_miss_rate
  migration/block-dirty-bitmap: fix dirty_bitmap_load
  migration: Poison ramblock loops in migration
  migration: Fixes for non-migratable RAMBlocks
  typedefs: add QJSON

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-15 18:13:35 +01:00
Peter Maydell
4359255ad3 Block layer patches:
- Fix options that work only with -drive or -blockdev, but not with
   both, because of QDict type confusion
 - rbd: Add options 'auth-client-required' and 'key-secret'
 - Remove deprecated -drive options serial/addr/cyls/heads/secs/trans
 - rbd, iscsi: Remove deprecated 'filename' option
 - Fix 'qemu-img map' crash with unaligned image size
 - Improve QMP documentation for jobs
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Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging

Block layer patches:

- Fix options that work only with -drive or -blockdev, but not with
  both, because of QDict type confusion
- rbd: Add options 'auth-client-required' and 'key-secret'
- Remove deprecated -drive options serial/addr/cyls/heads/secs/trans
- rbd, iscsi: Remove deprecated 'filename' option
- Fix 'qemu-img map' crash with unaligned image size
- Improve QMP documentation for jobs

# gpg: Signature made Fri 15 Jun 2018 15:20:03 BST
# gpg:                using RSA key 7F09B272C88F2FD6
# 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: (26 commits)
  block: Remove dead deprecation warning code
  block: Remove deprecated -drive option serial
  block: Remove deprecated -drive option addr
  block: Remove deprecated -drive geometry options
  rbd: New parameter key-secret
  rbd: New parameter auth-client-required
  block: Fix -blockdev / blockdev-add for empty objects and arrays
  check-block-qdict: Cover flattening of empty lists and dictionaries
  check-block-qdict: Rename qdict_flatten()'s variables for clarity
  block-qdict: Simplify qdict_is_list() some
  block-qdict: Clean up qdict_crumple() a bit
  block-qdict: Tweak qdict_flatten_qdict(), qdict_flatten_qlist()
  block-qdict: Simplify qdict_flatten_qdict()
  block: Make remaining uses of qobject input visitor more robust
  block: Factor out qobject_input_visitor_new_flat_confused()
  block: Clean up a misuse of qobject_to() in .bdrv_co_create_opts()
  block: Fix -drive for certain non-string scalars
  block: Fix -blockdev for certain non-string scalars
  qobject: Move block-specific qdict code to block-qdict.c
  block: Add block-specific QDict header
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-15 16:30:27 +01:00
Peter Maydell
1f871c5e6b exec.c: Handle IOMMUs in address_space_translate_for_iotlb()
Currently we don't support board configurations that put an IOMMU
in the path of the CPU's memory transactions, and instead just
assert() if the memory region fonud in address_space_translate_for_iotlb()
is an IOMMUMemoryRegion.

Remove this limitation by having the function handle IOMMUs.
This is mostly straightforward, but we must make sure we have
a notifier registered for every IOMMU that a transaction has
passed through, so that we can flush the TLB appropriately
when any of the IOMMUs change their mappings.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20180604152941.20374-5-peter.maydell@linaro.org
2018-06-15 15:23:34 +01:00
Peter Maydell
2c91bcf273 iommu: Add IOMMU index argument to translate method
Add an IOMMU index argument to the translate method of
IOMMUs. Since all of our current IOMMU implementations
support only a single IOMMU index, this has no effect
on the behaviour.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20180604152941.20374-4-peter.maydell@linaro.org
2018-06-15 15:23:34 +01:00
Peter Maydell
cb1efcf462 iommu: Add IOMMU index argument to notifier APIs
Add support for multiple IOMMU indexes to the IOMMU notifier APIs.
When initializing a notifier with iommu_notifier_init(), the caller
must pass the IOMMU index that it is interested in. When a change
happens, the IOMMU implementation must pass
memory_region_notify_iommu() the IOMMU index that has changed and
that notifiers must be called for.

IOMMUs which support only a single index don't need to change.
Callers which only really support working with IOMMUs with a single
index can use the result of passing MEMTXATTRS_UNSPECIFIED to
memory_region_iommu_attrs_to_index().

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20180604152941.20374-3-peter.maydell@linaro.org
2018-06-15 15:23:34 +01:00
Peter Maydell
21f402093c iommu: Add IOMMU index concept to IOMMU API
If an IOMMU supports mappings that care about the memory
transaction attributes, then it no longer has a unique
address -> output mapping, but more than one. We can
represent these using an IOMMU index, analogous to TCG's
mmu indexes.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20180604152941.20374-2-peter.maydell@linaro.org
2018-06-15 15:23:34 +01:00
Peter Maydell
afa4f6653d bswap: Add new stn_*_p() and ldn_*_p() memory access functions
There's a common pattern in QEMU where a function needs to perform
a data load or store of an N byte integer in a particular endianness.
At the moment this is handled by doing a switch() on the size and
calling the appropriate ld*_p or st*_p function for each size.

Provide a new family of functions ldn_*_p() and stn_*_p() which
take the size as an argument and do the switch() themselves.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180611171007.4165-2-peter.maydell@linaro.org
2018-06-15 15:23:34 +01:00
Peter Maydell
2d54f19401 cputlb: Pass cpu_transaction_failed() the correct physaddr
The API for cpu_transaction_failed() says that it takes the physical
address for the failed transaction. However we were actually passing
it the offset within the target MemoryRegion. We don't currently
have any target CPU implementations of this hook that require the
physical address; fix this bug so we don't get confused if we ever
do add one.

Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180611125633.32755-3-peter.maydell@linaro.org
2018-06-15 15:23:34 +01:00
Peter Maydell
ace4109011 cpu-defs.h: Document CPUIOTLBEntry 'addr' field
The 'addr' field in the CPUIOTLBEntry struct has a rather non-obvious
use; add a comment documenting it (reverse-engineered from what
the code that sets it is doing).

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180611125633.32755-2-peter.maydell@linaro.org
2018-06-15 15:23:34 +01:00
Peter Maydell
f81804a52b hw/core/or-irq: Support more than 16 inputs to an OR gate
For the IoTKit MPC support, we need to wire together the
interrupt outputs of 17 MPCs; this exceeds the current
value of MAX_OR_LINES. Increase MAX_OR_LINES to 32 (which
should be enough for anyone).

The tricky part is retaining the migration compatibility for
existing OR gates; we add a subsection which is only used
for larger OR gates, and define it such that we can freely
increase MAX_OR_LINES in future (or even move to a dynamically
allocated levels[] array without an upper size limit) without
breaking compatibility.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20180604152941.20374-10-peter.maydell@linaro.org
2018-06-15 15:23:34 +01:00
Peter Maydell
38d81dafb3 hw/arm/armv7m: Remove unused armv7m_init() function
Remove the now-unused armv7m_init() function. This was a legacy from
before we properly QOMified ARMv7M, and it has some flaws:

 * it combines work that needs to be done by an SoC object (creating
   and initializing the TYPE_ARMV7M object) with work that needs to
   be done by the board model (setting the system up to load the ELF
   file specified with -kernel)
 * TYPE_ARMV7M creation failure is fatal, but an SoC object wants to
   arrange to propagate the failure outward
 * it uses allocate-and-create via qdev_create() whereas the current
   preferred style for SoC objects is to do creation in-place

Board and SoC models can instead do the two jobs this function
was doing themselves, in the right places and with whatever their
preferred style/error handling is.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20180601144328.23817-3-peter.maydell@linaro.org
2018-06-15 15:23:34 +01:00
Dr. David Alan Gilbert
343f632c70 migration: Poison ramblock loops in migration
The migration code should be using the
  RAMBLOCK_FOREACH_MIGRATABLE and qemu_ram_foreach_block_migratable
not the all-block versions;  poison them so that we can't accidentally
use them.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20180605162545.80778-3-dgilbert@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2018-06-15 14:40:56 +01:00
Greg Kurz
ea134caa08 typedefs: add QJSON
Since commit 83ee768d62, we now have two places that define the
QJSON type:

$ git grep 'typedef struct QJSON QJSON'
include/migration/vmstate.h:typedef struct QJSON QJSON;
migration/qjson.h:typedef struct QJSON QJSON;

This breaks docker-test-build@centos6:

In file included from /tmp/qemu-test/src/migration/savevm.c:59:
/tmp/qemu-test/src/migration/qjson.h:16: error: redefinition of typedef
 'QJSON'
/tmp/qemu-test/src/include/migration/vmstate.h:30: note: previous
 declaration of 'QJSON' was here
make: *** [migration/savevm.o] Error 1

This happens because CentOS 6 has an old GCC 4.4.7. Even if redefining
a typedef with the same type is permitted since GCC 4.6, unless -pedantic
is passed, we don't really need to do that on purpose. Let's have a
single definition in <qemu/typedefs.h> instead.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <152844714981.11789.3657734445739553287.stgit@bahia.lan>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2018-06-15 14:40:56 +01:00
Kevin Wolf
b008326744 block: Remove deprecated -drive option serial
The -drive option serial was deprecated in QEMU 2.10. It's time to
remove it.

Tests need to be updated to set the serial number with -global instead
of using the -drive option.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>
2018-06-15 14:49:44 +02:00
Kevin Wolf
eae3bd1eb7 block: Remove deprecated -drive option addr
The -drive option addr was deprecated in QEMU 2.10. It's time to remove
it.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>
2018-06-15 14:49:44 +02:00
Kevin Wolf
a7aff6dd10 block: Remove deprecated -drive geometry options
The -drive options cyls, heads, secs and trans were deprecated in
QEMU 2.10. It's time to remove them.

hd-geo-test tested both the old version with geometry options in -drive
and the new one with -device. Therefore the code using -drive doesn't
have to be replaced there, we just need to remove the -drive test cases.
This in turn allows some simplification of the code.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
2018-06-15 14:49:44 +02:00
Markus Armbruster
af91062ee1 block: Factor out qobject_input_visitor_new_flat_confused()
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-06-15 14:49:44 +02:00
Markus Armbruster
e5af0da1dc block: Fix -blockdev for certain non-string scalars
Configuration flows through the block subsystem in a rather peculiar
way.  Configuration made with -drive enters it as QemuOpts.
Configuration made with -blockdev / blockdev-add enters it as QAPI
type BlockdevOptions.  The block subsystem uses QDict, QemuOpts and
QAPI types internally.  The precise flow is next to impossible to
explain (I tried for this commit message, but gave up after wasting
several hours).  What I can explain is a flaw in the BlockDriver
interface that leads to this bug:

    $ qemu-system-x86_64 -blockdev node-name=n1,driver=nfs,server.type=inet,server.host=localhost,path=/foo/bar,user=1234
    qemu-system-x86_64: -blockdev node-name=n1,driver=nfs,server.type=inet,server.host=localhost,path=/foo/bar,user=1234: Internal error: parameter user invalid

QMP blockdev-add is broken the same way.

Here's what happens.  The block layer passes configuration represented
as flat QDict (with dotted keys) to BlockDriver methods
.bdrv_file_open().  The QDict's members are typed according to the
QAPI schema.

nfs_file_open() converts it to QAPI type BlockdevOptionsNfs, with
qdict_crumple() and a qobject input visitor.

This visitor comes in two flavors.  The plain flavor requires scalars
to be typed according to the QAPI schema.  That's the case here.  The
keyval flavor requires string scalars.  That's not the case here.
nfs_file_open() uses the latter, and promptly falls apart for members
@user, @group, @tcp-syn-count, @readahead-size, @page-cache-size,
@debug.

Switching to the plain flavor would fix -blockdev, but break -drive,
because there the scalars arrive in nfs_file_open() as strings.

The proper fix would be to replace the QDict by QAPI type
BlockdevOptions in the BlockDriver interface.  Sadly, that's beyond my
reach right now.

Next best would be to fix the block layer to always pass correctly
typed QDicts to the BlockDriver methods.  Also beyond my reach.

What I can do is throw another hack onto the pile: have
nfs_file_open() convert all members to string, so use of the keyval
flavor actually works, by replacing qdict_crumple() by new function
qdict_crumple_for_keyval_qiv().

The pattern "pass result of qdict_crumple() to
qobject_input_visitor_new_keyval()" occurs several times more:

* qemu_rbd_open()

  Same issue as nfs_file_open(), but since BlockdevOptionsRbd has only
  string members, its only a latent bug.  Fix it anyway.

* parallels_co_create_opts(), qcow_co_create_opts(),
  qcow2_co_create_opts(), bdrv_qed_co_create_opts(),
  sd_co_create_opts(), vhdx_co_create_opts(), vpc_co_create_opts()

  These work, because they create the QDict with
  qemu_opts_to_qdict_filtered(), which creates only string scalars.
  The function sports a TODO comment asking for better typing; that's
  going to be fun.  Use qdict_crumple_for_keyval_qiv() to be safe.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-06-15 14:49:44 +02:00
Max Reitz
609f45ea95 block: Add block-specific QDict header
There are numerous QDict functions that have been introduced for and are
used only by the block layer.  Move their declarations into an own
header file to reflect that.

While qdict_extract_subqdict() is in fact used outside of the block
layer (in util/qemu-config.c), it is still a function related very
closely to how the block layer works with nested QDicts, namely by
sometimes flattening them.  Therefore, its declaration is put into this
header as well and util/qemu-config.c includes it with a comment stating
exactly which function it needs.

Suggested-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20180509165530.29561-7-mreitz@redhat.com>
[Copyright note tweaked, superfluous includes dropped]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-06-15 14:49:44 +02:00
Keno Fischer
656282d245 ui: darwin: gtk: Add missing input keymap
In appears the input keymap for osx was forgotten in the commit that
converted the gtk frontend to keycodemapdb. Add it.

Fixes: 2ec78706 ("ui: convert GTK and SDL1 frontends to keycodemapdb")
CC: Daniel P. Berrange <berrange@redhat.com>
Signed-off-by: Keno Fischer <keno@juliacomputing.com>
Message-id: 1528933916-40670-1-git-send-email-keno@juliacomputing.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2018-06-14 09:52:23 +02:00
Peter Maydell
2ab09bf2f9 usb: bug fix collection, doc update.
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Merge remote-tracking branch 'remotes/kraxel/tags/usb-20180612-pull-request' into staging

usb: bug fix collection, doc update.

# gpg: Signature made Tue 12 Jun 2018 11:44:17 BST
# gpg:                using RSA key 4CB6D8EED3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>"
# Primary key fingerprint: A032 8CFF B93A 17A7 9901  FE7D 4CB6 D8EE D3E8 7138

* remotes/kraxel/tags/usb-20180612-pull-request:
  usb-mtp: Return error on suspicious TYPE_DATA packet from initiator
  usb-hcd-xhci-test: add a test for ccid hotplug
  usb-ccid: fix bus leak
  object: fix OBJ_PROP_LINK_UNREF_ON_RELEASE ambivalence
  bus: do not unref the added child bus on realize
  usb/dev-mtp: Fix use of uninitialized values
  usb: correctly handle Zero Length Packets
  usb: update docs

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-12 15:34:34 +01:00
Peter Maydell
3b68de85b9 ppc patch queue 2018-06-12
Here's another batch of ppc patches towards the 3.0 release.  There's
 a fair bit here, because I've been working through my mail backlog
 after a holiday.  There's not much of a central theme, amongst other
 things we have:
     * ppc440 / sam460ex improvements
     * logging and error cleanups
     * 40p (PReP) bugfixes
     * Macintosh fixes and cleanups
     * Add emulation of the new POWER9 store-forwarding barrier
       instruction variant
     * Hotplug cleanups
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Merge remote-tracking branch 'remotes/dgibson/tags/ppc-for-3.0-20180612' into staging

ppc patch queue 2018-06-12

Here's another batch of ppc patches towards the 3.0 release.  There's
a fair bit here, because I've been working through my mail backlog
after a holiday.  There's not much of a central theme, amongst other
things we have:
    * ppc440 / sam460ex improvements
    * logging and error cleanups
    * 40p (PReP) bugfixes
    * Macintosh fixes and cleanups
    * Add emulation of the new POWER9 store-forwarding barrier
      instruction variant
    * Hotplug cleanups

# gpg: Signature made Tue 12 Jun 2018 07:43:21 BST
# gpg:                using RSA key 6C38CACA20D9B392
# gpg: Good signature from "David Gibson <david@gibson.dropbear.id.au>"
# gpg:                 aka "David Gibson (Red Hat) <dgibson@redhat.com>"
# gpg:                 aka "David Gibson (ozlabs.org) <dgibson@ozlabs.org>"
# gpg:                 aka "David Gibson (kernel.org) <dwg@kernel.org>"
# Primary key fingerprint: 75F4 6586 AE61 A66C C44E  87DC 6C38 CACA 20D9 B392

* remotes/dgibson/tags/ppc-for-3.0-20180612: (33 commits)
  spapr_pci: Remove unhelpful pagesize warning
  xics_kvm: use KVM helpers
  ppc/pnv: fix LPC HC firmware address space
  spapr: handle cpu core unplug via hotplug handler chain
  spapr: handle pc-dimm unplug via hotplug handler chain
  spapr: introduce machine unplug handler
  spapr: move memory hotplug support check into spapr_memory_pre_plug()
  spapr: move lookup of the node into spapr_memory_plug()
  spapr: no need to verify the node
  target/ppc: Allow PIR read in privileged mode
  ppc4xx_i2c: Clean up and improve error logging
  target/ppc: extend eieio for POWER9
  mos6522: convert VMSTATE_TIMER_PTR_TEST to VMSTATE_TIMER_PTR
  mos6522: move timer frequency initialisation to mos6522_reset
  cuda: embed mos6522_cuda device directly rather than using QOM object link
  mos6522: fix vmstate_mos6522_timer version in vmstate_mos6522
  ppc: add missing FW_CFG_PPC_NVRAM_FLAT definition
  ppc: remove obsolete macio_init() definition from mac.h
  ppc: remove obsolete pci_pmac_init() definitions from mac.h
  hw/misc/mos6522: Add trailing '\n' to qemu_log() calls
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-12 14:32:19 +01:00
Peter Maydell
98d11a6e72 bitmaps pull request
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Merge remote-tracking branch 'remotes/jnsnow/tags/bitmaps-pull-request' into staging

bitmaps pull request

# gpg: Signature made Mon 11 Jun 2018 20:33:09 BST
# gpg:                using RSA key 7DEF8106AAFC390E
# gpg: Good signature from "John Snow (John Huston) <jsnow@redhat.com>"
# Primary key fingerprint: FAEB 9711 A12C F475 812F  18F2 88A9 064D 1835 61EB
#      Subkey fingerprint: F9B7 ABDB BCAC DF95 BE76  CBD0 7DEF 8106 AAFC 390E

* remotes/jnsnow/tags/bitmaps-pull-request:
  qapi: add disabled parameter to block-dirty-bitmap-add
  qapi: add x-block-dirty-bitmap-merge
  qmp: transaction support for x-block-dirty-bitmap-enable/disable
  qapi: add x-block-dirty-bitmap-enable/disable
  block/dirty-bitmap: add lock to bdrv_enable/disable_dirty_bitmap
  block: simplify code around releasing bitmaps
  block: remove bdrv_dirty_bitmap_make_anon

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-12 13:33:23 +01:00
Marc-André Lureau
265b578c58 object: fix OBJ_PROP_LINK_UNREF_ON_RELEASE ambivalence
A link property can be set during creation, with
object_property_add_link() and later with object_property_set_link().

add_link() doesn't add a reference to the target object, while
set_link() does.

Furthemore, OBJ_PROP_LINK_UNREF_ON_RELEASE flags, set during add_link,
says whether a reference must be released when the property is destroyed.
This can lead to leaks if the property was later set_link(), as the
added reference is never released.

Instead, rename OBJ_PROP_LINK_UNREF_ON_RELEASE to OBJ_PROP_LINK_STRONG
and use that has an indication on how the link handle reference
management in set_link().

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-id: 20180531195119.22021-3-marcandre.lureau@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2018-06-12 12:07:30 +02:00
Cédric Le Goater
d61c285703 ppc/pnv: fix LPC HC firmware address space
A specific MemoryRegion is required for the LPC HC Firmware address
space.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-06-12 10:44:36 +10:00
Mark Cave-Ayland
d638fd5c96 mos6522: move timer frequency initialisation to mos6522_reset
The 6522 VIA timer frequency cannot be set by altering registers within the
device itself and hence it is a fixed property of the machine.

Move the initialisation of the timer frequency to the mos6522 reset function
and ensure that any subclasses always call the parent reset function so that
it isn't required to store the timer frequency within vmstate_mos6522_timer
itself.

By moving the frequency initialisation to the device reset function then we
find that the realize function for both mos6522 and mos6522_cuda becomes
obsolete and can simply be removed.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-06-12 10:44:36 +10:00
Mark Cave-Ayland
2e3e5c7e92 cuda: embed mos6522_cuda device directly rather than using QOM object link
Examining the migration stream it can be seen that the mos6522 device state is
being stored separately rather than as part of the CUDA device which is
incorrect (and likely to cause issues if another mos6522 device is added to
the machine).

Resolve this by embedding the mos6522_cuda device directly within the CUDA
device rather than using a QOM object link to reference the device separately.

Note that we also bump the version in vmstate_cuda to reflect this change: this
isn't particularly important for the moment as the Mac machine migration isn't
100% reliable due to issues migrating the timebase under TCG.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-06-12 10:44:36 +10:00
Mark Cave-Ayland
5b64db9754 ppc: add missing FW_CFG_PPC_NVRAM_FLAT definition
This is used in OpenBIOS to define the memory layout of the NVRAM device. Whilst
currently left at its default value, add the missing definition to ensure it is
reserved.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-06-12 10:44:36 +10:00