Commit Graph

6981 Commits

Author SHA1 Message Date
Paolo Bonzini
b2a44fcad7 address_space_read: address_space_to_flatview needs RCU lock
address_space_read is calling address_space_to_flatview but it can
be called outside the RCU lock.  To fix it, push the rcu_read_lock/unlock
pair up from flatview_read_full to address_space_read's constant size
fast path and address_space_read_full.

Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-03-06 14:01:28 +01:00
Paolo Bonzini
785a507ec7 memory: inline some performance-sensitive accessors
These accessors are called from inlined functions, and the call sequence
is much more expensive than just inlining the access.  Move the
struct declaration to memory-internal.h so that exec.c and memory.c
can both use an inline function.

Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-03-06 14:01:27 +01:00
Marc-André Lureau
80818e9ecb lockable: workaround GCC link issue with ASAN
Current GCC has an optimization bug when compiling with ASAN.

See also GCC bug:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84307

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20180215212552.26997-3-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-03-06 14:01:27 +01:00
Alexey Kardashevskiy
961c47bb8b qmp: Add qom-list-properties to list QOM object properties
There is already 'device-list-properties' which does most of the job,
however it does not handle everything returned by qom-list-types such
as machines as they inherit directly from TYPE_OBJECT and not TYPE_DEVICE.
It does not handle abstract classes either.

This adds a new qom-list-properties command which prints properties
of a specific class and its instance. It is pretty much a simplified copy
of the device-list-properties handler.

Since it creates an object instance, device properties should appear
in the output as they are copied to QOM properties at the instance_init
hook.

This adds a object_class_property_iter_init() helper to allow class
properties enumeration uses it in the new QMP command to allow properties
listing for abstract classes.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Message-Id: <20180301130939.15875-3-aik@ozlabs.ru>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-03-06 14:01:26 +01:00
Thomas Huth
1454509726 scsi: Remove automatic creation of SCSI controllers with -drive if=scsi
Automatic creation of SCSI controllers for "-drive if=scsi" for x86
machines was quite a bad idea (see description of commit f778a82f0c
for details). This is marked as deprecated since QEMU v2.9.0, and as
far as I know, nobody complained that this is still urgently required
anymore. Time to remove this now.

Suggested-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <1519123357-13225-1-git-send-email-thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-03-06 14:00:59 +01:00
Peter Maydell
58e2e17dba Block layer patches
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Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging

Block layer patches

# gpg: Signature made Mon 05 Mar 2018 17:45:51 GMT
# 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: (38 commits)
  block: Fix NULL dereference on empty drive error
  qcow2: Replace align_offset() with ROUND_UP()
  block/ssh: Add basic .bdrv_truncate()
  block/ssh: Make ssh_grow_file() blocking
  block/ssh: Pull ssh_grow_file() from ssh_create()
  qemu-img: Make resize error message more general
  qcow2: make qcow2_co_create2() a coroutine_fn
  block: rename .bdrv_create() to .bdrv_co_create_opts()
  Revert "IDE: Do not flush empty CDROM drives"
  block: test blk_aio_flush() with blk->root == NULL
  block: add BlockBackend->in_flight counter
  block: extract AIO_WAIT_WHILE() from BlockDriverState
  aio: rename aio_context_in_iothread() to in_aio_context_home_thread()
  docs: document how to use the l2-cache-entry-size parameter
  specs/qcow2: Fix documentation of the compressed cluster descriptor
  iotest 033: add misaligned write-zeroes test via truncate
  block: fix write with zero flag set and iovector provided
  block: Drop unused .bdrv_co_get_block_status()
  vvfat: Switch to .bdrv_co_block_status()
  vpc: Switch to .bdrv_co_block_status()
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

# Conflicts:
#	include/block/block.h
2018-03-06 11:20:44 +00:00
Suraj Jitindar Singh
c76c0d3090 ppc/spapr-caps: Convert cap-ibs to custom spapr-cap
Convert cap-ibs (indirect branch speculation) to a custom spapr-cap
type.

All tristate caps have now been converted to custom spapr-caps, so
remove the remaining support for them.

Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
[dwg: Don't explicitly list "?"/help option, trust convention]
[dwg: Fold tristate removal into here, to not break bisect]
[dwg: Fix minor style problems]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-03-06 13:16:29 +11:00
Mark Cave-Ayland
dda12e9a6f mac_newworld: use object link to pass OpenPIC object to macio
Also switch macio_newworld_realize() over to use it rather than using the pic_mem
memory region directly.

Now that both Old World and New World macio devices no longer make use of the
pic_mem memory region directly, we can remove it.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-03-06 13:16:29 +11:00
Mark Cave-Ayland
f7bd7941d8 openpic: move OpenPIC state and related definitions to openpic.h
This is to faciliate access to OpenPICState when wiring up the PIC to the macio
controller.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-03-06 13:16:29 +11:00
Mark Cave-Ayland
8d085cf03b openpic: move KVM-specific declarations into separate openpic_kvm.h file
This is needed before the next patch because the target-dependent kvm stub
uses the existing kvm_openpic_connect_vcpu() declaration, making it impossible
to move the device-specific declarations into the same file without breaking
ppc-linux-user compilation.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-03-06 13:16:29 +11:00
Mark Cave-Ayland
017812df5d mac_oldworld: use object link to pass heathrow PIC object to macio
Also switch macio_oldworld_realize() over to use it rather than using the pic_mem
memory region directly.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-03-06 13:16:29 +11:00
Mark Cave-Ayland
e1218e4812 macio: move macio related structures and defines into separate macio.h file
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-03-06 13:16:29 +11:00
Mark Cave-Ayland
086df4f30a heathrow: QOMify heathrow PIC
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-03-06 13:16:29 +11:00
Peter Maydell
4ee02f53be ui: build curses, gtk and sdl as modules.
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Merge remote-tracking branch 'remotes/kraxel/tags/ui-20180305-pull-request' into staging

ui: build curses, gtk and sdl as modules.

# gpg: Signature made Mon 05 Mar 2018 08:48:24 GMT
# 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/ui-20180305-pull-request:
  ui/sdl: build as module
  audio: rename CONFIG_* to CONFIG_AUDIO_*
  ui/curses: build as module
  ui/gtk: build as module
  configure: opengl doesn't depend on x11
  configure: add X11 vars to config-host.mak
  console: add ui module loading support
  console: add and use qemu_display_find_default
  egl-headless: switch over to new display registry
  curses: switch over to new display registry
  cocoa: switch over to new display registry
  sdl: switch over to new display registry
  console: add qemu display registry, add gtk

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-03-05 15:16:30 +00:00
Peter Maydell
41dfc0dc55 -----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
 
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Merge remote-tracking branch 'remotes/jasowang/tags/net-pull-request' into staging

# gpg: Signature made Mon 05 Mar 2018 03:06:59 GMT
# gpg:                using RSA key EF04965B398D6211
# gpg: Good signature from "Jason Wang (Jason Wang on RedHat) <jasowang@redhat.com>"
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg:          It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 215D 46F4 8246 689E C77F  3562 EF04 965B 398D 6211

* remotes/jasowang/tags/net-pull-request:
  tap: setting error appropriately when calling net_init_tap_one()
  hw/net: Remove unnecessary header includes
  net: Add a new convenience option "--nic" to configure default/on-board NICs
  net: Remove the deprecated 'host_net_add' and 'host_net_remove' HMP commands
  net: Remove the deprecated way of dumping network packets
  net: Make net_client_init() static
  net: Only show vhost-user in the help text if CONFIG_POSIX is defined
  net: List available netdevs with "-netdev help"
  net: Move error reporting from net_init_client/netdev to the calling site

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-03-05 14:27:24 +00:00
Peter Maydell
4a22592e32 -----BEGIN PGP SIGNATURE-----
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 =l8ac
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/vivier/tags/m68k-for-2.12-pull-request' into staging

# gpg: Signature made Sun 04 Mar 2018 17:32:25 GMT
# gpg:                using RSA key F30C38BD3F2FBE3C
# gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>"
# gpg:                 aka "Laurent Vivier <laurent@vivier.eu>"
# gpg:                 aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>"
# Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F  5173 F30C 38BD 3F2F BE3C

* remotes/vivier/tags/m68k-for-2.12-pull-request:
  target/m68k: add fscale, fgetman and fgetexp
  softfloat: use floatx80_infinity in softfloat
  target/m68k: add fmod/frem
  softfloat: export some functions
  target/m68k: TCGv returned by gen_load() must be freed

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-03-05 13:29:31 +00:00
Peter Maydell
7fceeb190a qapi patches for 2018-03-01
- Markus Armbruster: Modularize generated QAPI code
 -----BEGIN PGP SIGNATURE-----
 Comment: Public key at http://people.redhat.com/eblake/eblake.gpg
 
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Merge remote-tracking branch 'remotes/ericb/tags/pull-qapi-2018-03-01-v4' into staging

qapi patches for 2018-03-01

- Markus Armbruster: Modularize generated QAPI code

# gpg: Signature made Fri 02 Mar 2018 19:50:16 GMT
# gpg:                using RSA key A7A16B4A2527436A
# gpg: Good signature from "Eric Blake <eblake@redhat.com>"
# gpg:                 aka "Eric Blake (Free Software Programmer) <ebb9@byu.net>"
# gpg:                 aka "[jpeg image of size 6874]"
# Primary key fingerprint: 71C2 CC22 B1C4 6029 27D2  F3AA A7A1 6B4A 2527 436A

* remotes/ericb/tags/pull-qapi-2018-03-01-v4: (30 commits)
  qapi: Don't create useless directory qapi-generated
  Fix up dangling references to qmp-commands.* in comment and doc
  qapi: Move qapi-schema.json to qapi/, rename generated files
  docs: Correct outdated information on QAPI
  docs/devel/writing-qmp-commands: Update for modular QAPI
  qapi: Empty out qapi-schema.json
  Include less of the generated modular QAPI headers
  qapi: Generate separate .h, .c for each module
  watchdog: Consolidate QAPI into single file
  qapi/common: Fix guardname() for funny filenames
  qapi/types qapi/visit: Generate built-in stuff into separate files
  qapi: Make code-generating visitors use QAPIGen more
  qapi: Rename generated qmp-marshal.c to qmp-commands.c
  qapi: Record 'include' directives in intermediate representation
  qapi: Generate in source order
  qapi: Record 'include' directives in parse tree
  qapi: Concentrate QAPISchemaParser.exprs updates in .__init__()
  qapi: Lift error reporting from QAPISchema.__init__() to callers
  qapi/common: Eliminate QAPISchema.exprs
  qapi: Improve include file name reporting in error messages
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-03-05 09:47:37 +00:00
Gerd Hoffmann
61b4d9a246 console: add ui module loading support
If a requested user interface is not available, try loading it as
module, simliar to block layer modules.  Needed to keep things working
when followup patches start to build user interfaces as modules.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20180301100547.18962-8-kraxel@redhat.com
2018-03-05 08:44:11 +01:00
Gerd Hoffmann
898f9d41d0 console: add and use qemu_display_find_default
Using the new display registry instead of #ifdefs in vl.c.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20180301100547.18962-7-kraxel@redhat.com
2018-03-05 08:44:11 +01:00
Gerd Hoffmann
16ab0a74e4 egl-headless: switch over to new display registry
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20180301100547.18962-6-kraxel@redhat.com
2018-03-05 08:44:11 +01:00
Gerd Hoffmann
b0766612d1 curses: switch over to new display registry
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20180301100547.18962-5-kraxel@redhat.com
2018-03-05 08:44:11 +01:00
Gerd Hoffmann
5013b9e46a cocoa: switch over to new display registry
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20180301100547.18962-4-kraxel@redhat.com
2018-03-05 08:44:11 +01:00
Gerd Hoffmann
5ee1718f92 sdl: switch over to new display registry
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20180301100547.18962-3-kraxel@redhat.com
2018-03-05 08:44:11 +01:00
Gerd Hoffmann
db71589fd9 console: add qemu display registry, add gtk
Add a registry for user interfaces.  Add qemu_display_init and
qemu_display_early_init helper functions for display initialization.

Hook up gtk ui as first user.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20180301100547.18962-2-kraxel@redhat.com
2018-03-05 08:44:11 +01:00
Jay Zhou
46d4d36d0b tap: setting error appropriately when calling net_init_tap_one()
If netdev_add tap,id=net0,...,vhost=on failed in net_init_tap_one(),
the followed up device_add virtio-net-pci,netdev=net0 will fail
too, prints:

   TUNSETOFFLOAD ioctl() failed: Bad file descriptor TUNSETOFFLOAD
   ioctl() failed: Bad file descriptor

The reason is that the fd of tap is closed when error occured after
calling net_init_tap_one().

The fd should be closed when calling net_init_tap_one failed:
   - if tap_set_sndbuf() failed
   - if tap_set_sndbuf() succeeded but vhost failed to open or
     initialize with vhostforce flag on
   - with wrong vhost command line parameter
The fd should not be closed just because vhost failed to open or
initialize but without vhostforce flag. So the followed up
device_add can fall back to userspace virtio successfully.

Suggested-by: Michael S. Tsirkin <mst@redhat.com>
Suggested-by: Igor Mammedov <imammedo@redhat.com>
Suggested-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Jay Zhou <jianjay.zhou@huawei.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2018-03-05 10:30:16 +08:00
Thomas Huth
78cd6f7bf6 net: Add a new convenience option "--nic" to configure default/on-board NICs
The legacy "-net" option can be quite confusing for the users since most
people do not expect to get a "vlan" hub between their emulated guest
hardware and the host backend. But so far, we are also not able to get
rid of "-net" completely, since it is the only way to configure on-board
NICs that can not be instantiated via "-device" yet. It's also a little
bit shorter to type "-net nic -net tap" instead of "-device xyz,netdev=n1
-netdev tap,id=n1".

So what we need is a new convenience option that is shorter to type than
the full -device + -netdev stuff, and which can be used to configure the
on-board NICs that can not be handled via -device yet. Thus this patch now
provides such a new option "--nic": It adds an entry in the nd_table to
configure a on-board / default NIC, creates a host backend and connects
the two directly, without a confusing "vlan" hub inbetween.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2018-03-05 10:30:16 +08:00
Thomas Huth
aa09a485c2 net: Make net_client_init() static
The function is only used within net.c, so there's no need that
this is a global function.

While we're at it, also remove the unused prototype compute_mcast_idx()
(the function has been removed in commit d9caeb09b1).

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2018-03-05 10:30:15 +08:00
Thomas Huth
34f708b0b6 net: Move error reporting from net_init_client/netdev to the calling site
It looks strange that net_init_client() and net_init_netdev() both
take an "Error **errp" parameter, but then do the error reporting
with "error_report_err(local_err)" on their own. Let's move the
error reporting to the calling site instead to simplify this code
a little bit.

Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2018-03-05 10:25:23 +08:00
Laurent Vivier
0f605c889c softfloat: use floatx80_infinity in softfloat
Since f3218a8 ("softfloat: add floatx80 constants")
floatx80_infinity is defined but never used.

This patch updates floatx80 functions to use
this definition.

This allows to define a different default Infinity
value on m68k: the m68k FPU defines infinity with
all bits set to zero in the mantissa.

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20180224201802.911-4-laurent@vivier.eu>
2018-03-04 17:27:35 +01:00
Laurent Vivier
88857aca93 softfloat: export some functions
Move fpu/softfloat-macros.h to include/fpu/

Export floatx80 functions to be used by target floatx80
specific implementations.

Exports:
  propagateFloatx80NaN(), extractFloatx80Frac(),
  extractFloatx80Exp(), extractFloatx80Sign(),
  normalizeFloatx80Subnormal(), packFloatx80(),
  roundAndPackFloatx80(), normalizeRoundAndPackFloatx80()

Also exports packFloat32() that will be used to implement
m68k fsinh, fcos, fsin, ftan operations.

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20180224201802.911-2-laurent@vivier.eu>
2018-03-04 17:22:55 +01:00
Markus Armbruster
eb815e248f qapi: Move qapi-schema.json to qapi/, rename generated files
Move qapi-schema.json to qapi/, so it's next to its modules, and all
files get generated to qapi/, not just the ones generated for modules.

Consistently name the generated files qapi-MODULE.EXT:
qmp-commands.[ch] become qapi-commands.[ch], qapi-event.[ch] become
qapi-events.[ch], and qmp-introspect.[ch] become qapi-introspect.[ch].
This gets rid of the temporary hacks in scripts/qapi/commands.py,
scripts/qapi/events.py, and scripts/qapi/common.py.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20180211093607.27351-28-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
[eblake: Fix trailing dot in tpm.c, undo temporary hack for OSX toolchain]
Signed-off-by: Eric Blake <eblake@redhat.com>
2018-03-02 13:45:57 -06:00
Markus Armbruster
112ed241f5 qapi: Empty out qapi-schema.json
The previous commit improved compile time by including less of the
generated QAPI headers.  This is impossible for stuff defined directly
in qapi-schema.json, because that ends up in headers that that pull in
everything.

Move everything but include directives from qapi-schema.json to new
sub-module qapi/misc.json, then include just the "misc" shard where
possible.

It's possible everywhere, except:

* monitor.c needs qmp-command.h to get qmp_init_marshal()

* monitor.c, ui/vnc.c and the generated qapi-event-FOO.c need
  qapi-event.h to get enum QAPIEvent

Perhaps we'll get rid of those some other day.

Adding a type to qapi/migration.json now recompiles some 120 instead
of 2300 out of 5100 objects.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20180211093607.27351-25-armbru@redhat.com>
[eblake: rebase to master]
Signed-off-by: Eric Blake <eblake@redhat.com>
2018-03-02 13:45:50 -06:00
Markus Armbruster
9af2398977 Include less of the generated modular QAPI headers
In my "build everything" tree, a change to the types in
qapi-schema.json triggers a recompile of about 4800 out of 5100
objects.

The previous commit split up qmp-commands.h, qmp-event.h, qmp-visit.h,
qapi-types.h.  Each of these headers still includes all its shards.
Reduce compile time by including just the shards we actually need.

To illustrate the benefits: adding a type to qapi/migration.json now
recompiles some 2300 instead of 4800 objects.  The next commit will
improve it further.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20180211093607.27351-24-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
[eblake: rebase to master]
Signed-off-by: Eric Blake <eblake@redhat.com>
2018-03-02 13:45:50 -06:00
Marc-André Lureau
4f51e1d386 net: fix misaligned member access
Fixes the following ASAN warnings:

/home/elmarco/src/qemu/hw/net/net_tx_pkt.c:201:27: runtime error: member access within misaligned address 0x631000028846 for type 'struct ip_header', which requires 4 byte alignment
0x631000028846: note: pointer points here
 01 00 00 00 45 00  01 a9 01 00 00 00 40 11  78 45 00 00 00 00 ff ff  ff ff 00 00 00 00 00 00  00 00
             ^
/home/elmarco/src/qemu/hw/net/net_tx_pkt.c:208:63: runtime error: member access within misaligned address 0x631000028846 for type 'struct ip_header', which requires 4 byte alignment
0x631000028846: note: pointer points here
 01 00 00 00 45 00  01 a9 01 00 00 00 40 11  78 45 00 00 00 00 ff ff  ff ff 00 00 00 00 00 00  00 00
             ^
/home/elmarco/src/qemu/hw/net/net_tx_pkt.c:210:13: runtime error: member access within misaligned address 0x631000028846 for type 'struct ip_header', which requires 4 byte alignment
0x631000028846: note: pointer points here
 01 00 00 00 45 00  01 a9 01 00 00 00 40 11  78 45 00 00 00 00 ff ff  ff ff 00 00 00 00 00 00  00 00

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20180209190340.19516-1-marcandre.lureau@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-03-02 18:44:00 +00:00
Stefan Hajnoczi
efc75e2a4c block: rename .bdrv_create() to .bdrv_co_create_opts()
BlockDriver->bdrv_create() has been called from coroutine context since
commit 5b7e1542cf ("block: make
bdrv_create adopt coroutine").

Make this explicit by renaming to .bdrv_co_create_opts() and add the
coroutine_fn annotation.  This makes it obvious to block driver authors
that they may yield, use CoMutex, or other coroutine_fn APIs.
bdrv_co_create is reserved for the QAPI-based version that Kevin is
working on.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20170705102231.20711-2-stefanha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-03-02 18:39:07 +01:00
Stefan Hajnoczi
7719f3c968 block: extract AIO_WAIT_WHILE() from BlockDriverState
BlockDriverState has the BDRV_POLL_WHILE() macro to wait on event loop
activity while a condition evaluates to true.  This is used to implement
synchronous operations where it acts as a condvar between the IOThread
running the operation and the main loop waiting for the operation.  It
can also be called from the thread that owns the AioContext and in that
case it's just a nested event loop.

BlockBackend needs this behavior but doesn't always have a
BlockDriverState it can use.  This patch extracts BDRV_POLL_WHILE() into
the AioWait abstraction, which can be used with AioContext and isn't
tied to BlockDriverState anymore.

This feature could be built directly into AioContext but then all users
would kick the event loop even if they signal different conditions.
Imagine an AioContext with many BlockDriverStates, each time a request
completes any waiter would wake up and re-check their condition.  It's
nicer to keep a separate AioWait object for each condition instead.

Please see "block/aio-wait.h" for details on the API.

The name AIO_WAIT_WHILE() avoids the confusion between AIO_POLL_WHILE()
and AioContext polling.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-03-02 18:39:07 +01:00
Stefan Hajnoczi
d2b63ba8dd aio: rename aio_context_in_iothread() to in_aio_context_home_thread()
The name aio_context_in_iothread() is misleading because it also returns
true when called on the main AioContext from the main loop thread, which
is not an IOThread.

This patch renames it to in_aio_context_home_thread() and expands the
doc comment to make the semantics clearer.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-03-02 18:39:07 +01:00
Eric Blake
636cb51258 block: Drop unused .bdrv_co_get_block_status()
We are gradually moving away from sector-based interfaces, towards
byte-based.  Now that all drivers have been updated to provide the
byte-based .bdrv_co_block_status(), we can delete the sector-based
interface.

Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-03-02 18:39:07 +01:00
Eric Blake
3e4d0e72b7 block: Switch passthrough drivers to .bdrv_co_block_status()
We are gradually moving away from sector-based interfaces, towards
byte-based.  Update the generic helpers, and all passthrough clients
(blkdebug, commit, mirror, throttle) accordingly.

Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-03-02 18:39:07 +01:00
Eric Blake
86a3d5c688 block: Add .bdrv_co_block_status() callback
We are gradually moving away from sector-based interfaces, towards
byte-based. Now that the block layer exposes byte-based allocation,
it's time to tackle the drivers.  Add a new callback that operates
on as small as byte boundaries. Subsequent patches will then update
individual drivers, then finally remove .bdrv_co_get_block_status().

The new code also passes through the 'want_zero' hint, which will
allow subsequent patches to further optimize callers that only care
about how much of the image is allocated (want_zero is false),
rather than full details about runs of zeroes and which offsets the
allocation actually maps to (want_zero is true).  As part of this
effort, fix another part of the documentation: the claim in commit
4c41cb4 that BDRV_BLOCK_ALLOCATED is short for 'DATA || ZERO' is a
lie at the block layer (see commit e88ae2264), even though it is
how the bit is computed from the driver layer.  After all, there
are intentionally cases where we return ZERO but not ALLOCATED at
the block layer, when we know that a read sees zero because the
backing file is too short.  Note that the driver interface is thus
slightly different than the public interface with regards to which
bits will be set, and what guarantees are provided on input.

We also add an assertion that any driver using the new callback will
make progress (the only time pnum will be 0 is if the block layer
already handled an out-of-bounds request, or if there is an error);
the old driver interface did not provide this guarantee, which
could lead to some inf-loops in drastic corner-case failures.

Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-03-02 18:39:07 +01:00
Peter Maydell
86f4c7e05b target-arm queue:
* implement FCMA and RDM v8.1 and v8.3 instructions
  * enable Cortex-M33 v8M core, and provide new mps2-an505 board model
    that uses it
  * decodetree: Propagate return value from translate subroutines
  * xlnx-zynqmp: Implement the RTC device
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Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20180302' into staging

target-arm queue:
 * implement FCMA and RDM v8.1 and v8.3 instructions
 * enable Cortex-M33 v8M core, and provide new mps2-an505 board model
   that uses it
 * decodetree: Propagate return value from translate subroutines
 * xlnx-zynqmp: Implement the RTC device

# gpg: Signature made Fri 02 Mar 2018 11:05:40 GMT
# gpg:                using RSA key 3C2525ED14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>"
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>"
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83  15CF 3C25 25ED 1436 0CDE

* remotes/pmaydell/tags/pull-target-arm-20180302: (39 commits)
  target/arm: Enable ARM_FEATURE_V8_FCMA
  target/arm: Decode t32 simd 3reg and 2reg_scalar extension
  target/arm: Decode aa32 armv8.3 2-reg-index
  target/arm: Decode aa32 armv8.3 3-same
  target/arm: Decode aa64 armv8.3 fcmla
  target/arm: Decode aa64 armv8.3 fcadd
  target/arm: Add ARM_FEATURE_V8_FCMA
  target/arm: Enable ARM_FEATURE_V8_RDM
  target/arm: Decode aa32 armv8.1 two reg and a scalar
  target/arm: Decode aa32 armv8.1 three same
  target/arm: Decode aa64 armv8.1 scalar/vector x indexed element
  target/arm: Decode aa64 armv8.1 three same extra
  target/arm: Decode aa64 armv8.1 scalar three same extra
  target/arm: Refactor disas_simd_indexed size checks
  target/arm: Refactor disas_simd_indexed decode
  target/arm: Add ARM_FEATURE_V8_RDM
  mps2-an505: New board model: MPS2 with AN505 Cortex-M33 FPGA image
  hw/arm/iotkit: Model Arm IOT Kit
  hw/misc/iotkit-secctl: Add remaining simple registers
  hw/misc/iotkit-secctl: Add handling for PPCs
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-03-02 14:37:10 +00:00
Peter Maydell
2e7b766594 nbd patches for 2018-03-01
- Eric Blake: nbd: Honor server's advertised minimum block size
 - Vladimir Sementsov-Ogievskiy: partial: nbd block status base:allocation
 -----BEGIN PGP SIGNATURE-----
 Comment: Public key at http://people.redhat.com/eblake/eblake.gpg
 
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 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/ericb/tags/pull-nbd-2018-03-01' into staging

nbd patches for 2018-03-01

- Eric Blake: nbd: Honor server's advertised minimum block size
- Vladimir Sementsov-Ogievskiy: partial: nbd block status base:allocation

# gpg: Signature made Thu 01 Mar 2018 21:01:22 GMT
# gpg:                using RSA key A7A16B4A2527436A
# gpg: Good signature from "Eric Blake <eblake@redhat.com>"
# gpg:                 aka "Eric Blake (Free Software Programmer) <ebb9@byu.net>"
# gpg:                 aka "[jpeg image of size 6874]"
# Primary key fingerprint: 71C2 CC22 B1C4 6029 27D2  F3AA A7A1 6B4A 2527 436A

* remotes/ericb/tags/pull-nbd-2018-03-01:
  nbd/client: fix error messages in nbd_handle_reply_err
  nbd: BLOCK_STATUS constants
  nbd: change indenting in nbd.h
  nbd: Honor server's advertised minimum block size

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-03-02 12:39:13 +00:00
Peter Maydell
9e5e54d1af hw/arm/iotkit: Model Arm IOT Kit
Model the Arm IoT Kit documented in
http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ecm0601256/index.html

The Arm IoT Kit is a subsystem which includes a CPU and some devices,
and is intended be extended by adding extra devices to form a
complete system.  It is used in the MPS2 board's AN505 image for the
Cortex-M33.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180220180325.29818-19-peter.maydell@linaro.org
2018-03-02 11:03:45 +00:00
Peter Maydell
b1ce38e12b hw/misc/iotkit-secctl: Add remaining simple registers
Add remaining easy registers to iotkit-secctl:
 * NSCCFG just routes its two bits out to external GPIO lines
 * BRGINSTAT/BRGINTCLR/BRGINTEN can be dummies, because QEMU's
   bus fabric can never report errors

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20180220180325.29818-18-peter.maydell@linaro.org
2018-03-02 11:03:45 +00:00
Peter Maydell
b3717c23e1 hw/misc/iotkit-secctl: Add handling for PPCs
The IoTKit Security Controller includes various registers
that expose to software the controls for the Peripheral
Protection Controllers in the system. Implement these.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180220180325.29818-17-peter.maydell@linaro.org
2018-03-02 11:03:45 +00:00
Peter Maydell
de343bb632 hw/misc/iotkit-secctl: Arm IoT Kit security controller initial skeleton
The Arm IoT Kit includes a "security controller" which is largely a
collection of registers for controlling the PPCs and other bits of
glue in the system.  This commit provides the initial skeleton of the
device, implementing just the ID registers, and a couple of read-only
read-as-zero registers.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180220180325.29818-16-peter.maydell@linaro.org
2018-03-02 11:03:45 +00:00
Peter Maydell
9eb8040c2d hw/misc/tz-ppc: Model TrustZone peripheral protection controller
Add a model of the TrustZone peripheral protection controller (PPC),
which is used to gate transactions to non-TZ-aware peripherals so
that secure software can configure them to not be accessible to
non-secure software.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180220180325.29818-15-peter.maydell@linaro.org
2018-03-02 11:03:45 +00:00
Peter Maydell
9a52d9992f hw/misc/mps2-fpgaio: FPGA control block for MPS2 AN505
The MPS2 AN505 FPGA image includes a "FPGA control block"
which is a small set of registers handling LEDs, buttons
and some counters.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180220180325.29818-14-peter.maydell@linaro.org
2018-03-02 11:03:45 +00:00
Peter Maydell
5edb1b3fa9 hw/core/split-irq: Device that splits IRQ lines
In some board or SoC models it is necessary to split a qemu_irq line
so that one input can feed multiple outputs.  We currently have
qemu_irq_split() for this, but that has several deficiencies:
 * it can only handle splitting a line into two
 * it unavoidably leaks memory, so it can't be used
   in a device that can be deleted

Implement a qdev device that encapsulates splitting of IRQs, with a
configurable number of outputs.  (This is in some ways the inverse of
the TYPE_OR_IRQ device.)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180220180325.29818-13-peter.maydell@linaro.org
2018-03-02 11:03:45 +00:00
Peter Maydell
4a151677a8 qdev: Add new qdev_init_gpio_in_named_with_opaque()
The function qdev_init_gpio_in_named() passes the DeviceState pointer
as the opaque data pointor for the irq handler function.  Usually
this is what you want, but in some cases it would be helpful to use
some other data pointer.

Add a new function qdev_init_gpio_in_named_with_opaque() which allows
the caller to specify the data pointer they want.

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: 20180220180325.29818-12-peter.maydell@linaro.org
2018-03-02 11:03:45 +00:00