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6 years agoMerge remote-tracking branch 'remotes/cody/tags/block-pull-request' into staging
Peter Maydell [Thu, 14 Jun 2018 12:16:20 +0000 (13:16 +0100)]
Merge remote-tracking branch 'remotes/cody/tags/block-pull-request' into staging

# gpg: Signature made Wed 13 Jun 2018 15:52:27 BST
# gpg:                using RSA key BDBE7B27C0DE3057
# gpg: Good signature from "Jeffrey Cody <jcody@redhat.com>"
# gpg:                 aka "Jeffrey Cody <jeff@codyprime.org>"
# gpg:                 aka "Jeffrey Cody <codyprime@gmail.com>"
# Primary key fingerprint: 9957 4B4D 3474 90E7 9D98  D624 BDBE 7B27 C0DE 3057

* remotes/cody/tags/block-pull-request:
  block: Ignore generated job QAPI files

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
6 years agoMerge remote-tracking branch 'remotes/armbru/tags/pull-misc-2018-06-13' into staging
Peter Maydell [Thu, 14 Jun 2018 10:35:22 +0000 (11:35 +0100)]
Merge remote-tracking branch 'remotes/armbru/tags/pull-misc-2018-06-13' into staging

Miscellaneous patches for 2018-06-13

# gpg: Signature made Wed 13 Jun 2018 13:51:51 BST
# gpg:                using RSA key 3870B400EB918653
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>"
# gpg:                 aka "Markus Armbruster <armbru@pond.sub.org>"
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867  4E5F 3870 B400 EB91 8653

* remotes/armbru/tags/pull-misc-2018-06-13:
  Purge uses of banned g_assert_FOO()
  coverity-model: replay data is considered trusted
  Revert "Makefile: add target to print generated files"

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
6 years agoblock: Ignore generated job QAPI files
Eric Blake [Thu, 31 May 2018 21:24:35 +0000 (16:24 -0500)]
block: Ignore generated job QAPI files

Commit bf42508f introduced new generated files; make sure they
don't get accidentally committed from an in-tree build.

Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 20180531212435.165261-1-eblake@redhat.com
Signed-off-by: Jeff Cody <jcody@redhat.com>
6 years agoPurge uses of banned g_assert_FOO()
Markus Armbruster [Fri, 8 Jun 2018 17:02:31 +0000 (19:02 +0200)]
Purge uses of banned g_assert_FOO()

We banned use of certain g_assert_FOO() functions outside tests, and
made checkpatch.pl flag them (commit 6e9389563e5).  We neglected to
purge existing uses.  Do that now.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20180608170231.27912-1-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: John Snow <jsnow@redhat.com>
6 years agocoverity-model: replay data is considered trusted
Paolo Bonzini [Mon, 14 May 2018 14:12:18 +0000 (16:12 +0200)]
coverity-model: replay data is considered trusted

Replay data is not considered a possible attack vector; add a model that
does not use getc so that "tainted data" warnings are suppressed.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20180514141218.28438-1-pbonzini@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[Whitespace tweaked]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
6 years agoRevert "Makefile: add target to print generated files"
Markus Armbruster [Fri, 4 May 2018 05:42:41 +0000 (07:42 +0200)]
Revert "Makefile: add target to print generated files"

This reverts commit 9578f8cc3e8bd71de8e3f543dc7b95644d64824e.

The patch snuck in by accident without having been posted to
qemu-devel.  It's entirely redundant: existing target print-% already
serves the purpose.

Cc: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20180504054241.6833-1-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
6 years agoMerge remote-tracking branch 'remotes/vivier2/tags/linux-user-for-3.0-pull-request...
Peter Maydell [Tue, 12 Jun 2018 15:42:53 +0000 (16:42 +0100)]
Merge remote-tracking branch 'remotes/vivier2/tags/linux-user-for-3.0-pull-request' into staging

Fixes in syscall numbers,
disable the build of binaries not needed for linux-user,
update of qemu-binfmt-conf.sh and cleanup around is_error()

# gpg: Signature made Tue 12 Jun 2018 11:57:18 BST
# 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/vivier2/tags/linux-user-for-3.0-pull-request:
  linux-user/sparc64: Add inotify_rm_watch and tee syscalls
  linux-user/microblaze: Fix typo in accept4 syscall
  linux-user/hppa: Fix typo in mknodat syscall
  linux-user/alpha: Fix epoll syscalls
  qemu-binfmt-conf.sh: ignore the OS/ABI field
  linux-user: disable qemu-bridge-helper and socket_scm_helper build
  linux-user: Use is_error() to avoid warnings and make the code clearer
  linux-user: Export use is_error(), use it to avoid warnings

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
6 years agoMerge remote-tracking branch 'remotes/kraxel/tags/usb-20180612-pull-request' into...
Peter Maydell [Tue, 12 Jun 2018 14:34:34 +0000 (15:34 +0100)]
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>
6 years agoMerge remote-tracking branch 'remotes/dgibson/tags/ppc-for-3.0-20180612' into staging
Peter Maydell [Tue, 12 Jun 2018 13:32:19 +0000 (14:32 +0100)]
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>
6 years agoMerge remote-tracking branch 'remotes/jnsnow/tags/bitmaps-pull-request' into staging
Peter Maydell [Tue, 12 Jun 2018 12:33:23 +0000 (13:33 +0100)]
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>
6 years agoMerge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging
Peter Maydell [Tue, 12 Jun 2018 11:42:15 +0000 (12:42 +0100)]
Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging

pc: fixes

A couple of fixes to acpi and nvdimm.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
# gpg: Signature made Mon 11 Jun 2018 20:21:03 BST
# gpg:                using RSA key 281F0DB8D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>"
# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17  0970 C350 3912 AFBE 8E67
#      Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA  8A0D 281F 0DB8 D28D 5469

* remotes/mst/tags/for_upstream:
  nvdimm: make persistence option symbolic
  hw/i386: Update SSDT table used by "make check"

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
6 years agoMerge remote-tracking branch 'remotes/ehabkost/tags/python-next-pull-request' into...
Peter Maydell [Tue, 12 Jun 2018 10:56:20 +0000 (11:56 +0100)]
Merge remote-tracking branch 'remotes/ehabkost/tags/python-next-pull-request' into staging

Python queue, 2018-06-11

* Make code compatible with Python 3 using 'futurize --stage1'
* Require Python >= 2.7 and remove Python 2.6 compatibility
  modules

# gpg: Signature made Mon 11 Jun 2018 18:41:26 BST
# gpg:                using RSA key 2807936F984DC5A6
# gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>"
# Primary key fingerprint: 5A32 2FD5 ABC4 D3DB ACCF  D1AA 2807 936F 984D C5A6

* remotes/ehabkost/tags/python-next-pull-request:
  python: Remove scripts/ordereddict.py
  python: Remove scripts/argparse.py
  configure: Require Python 2.7 or newer
  python: futurize -f lib2to3.fixes.fix_numliterals
  python: futurize -f lib2to3.fixes.fix_except
  python: futurize -f lib2to3.fixes.fix_renames
  python: futurize -f lib2to3.fixes.fix_tuple_params
  python: futurize -f lib2to3.fixes.fix_reduce
  python: futurize -f lib2to3.fixes.fix_standarderror
  python: futurize -f lib2to3.fixes.fix_has_key
  python: futurize -f libfuturize.fixes.fix_next_call
  python: futurize -f libfuturize.fixes.fix_absolute_import
  python: futurize -f libfuturize.fixes.fix_print_with_import

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
6 years agousb-mtp: Return error on suspicious TYPE_DATA packet from initiator
Bandan Das [Fri, 18 May 2018 18:49:03 +0000 (14:49 -0400)]
usb-mtp: Return error on suspicious TYPE_DATA packet from initiator

CID 1390604
If the initiator sends a packet with TYPE_DATA set without
initiating a CMD_GET_OBJECT_INFO first, then usb_mtp_get_data
can trip on a null s->data_out.

Signed-off-by: Bandan Das <bsd@redhat.com>
Message-Id: <jpgr2m8ajfk.fsf_-_@linux.bootlegged.copy>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
6 years agousb-hcd-xhci-test: add a test for ccid hotplug
Marc-André Lureau [Thu, 31 May 2018 19:51:19 +0000 (21:51 +0200)]
usb-hcd-xhci-test: add a test for ccid hotplug

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-id: 20180531195119.22021-5-marcandre.lureau@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
6 years agousb-ccid: fix bus leak
Marc-André Lureau [Thu, 31 May 2018 19:51:18 +0000 (21:51 +0200)]
usb-ccid: fix bus leak

qbus_create_inplace() creates a new reference in realize(), it must be
released in unrealize().

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-id: 20180531195119.22021-4-marcandre.lureau@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
6 years agoobject: fix OBJ_PROP_LINK_UNREF_ON_RELEASE ambivalence
Marc-André Lureau [Thu, 31 May 2018 19:51:17 +0000 (21:51 +0200)]
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>
6 years agobus: do not unref the added child bus on realize
Marc-André Lureau [Thu, 31 May 2018 19:51:16 +0000 (21:51 +0200)]
bus: do not unref the added child bus on realize

When the parent bus removes the child property, it takes care of
removing the added reference, in object_finalize_child_property().

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-id: 20180531195119.22021-2-marcandre.lureau@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
6 years agousb/dev-mtp: Fix use of uninitialized values
Philippe Mathieu-Daudé [Mon, 4 Jun 2018 15:14:20 +0000 (12:14 -0300)]
usb/dev-mtp: Fix use of uninitialized values

This fixes:

  hw/usb/dev-mtp.c:971:5: warning: 4th function call argument is an uninitialized value
      trace_usb_mtp_op_get_partial_object(s->dev.addr, o->handle, o->path,
                                           c->argv[1], c->argv[2]);
                                                       ^~~~~~~~~~
and:

  hw/usb/dev-mtp.c:981:12: warning: Assigned value is garbage or undefined
      offset = c->argv[1];
               ^ ~~~~~~~~~~

Reported-by: Clang Static Analyzer
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20180604151421.23385-3-f4bug@amsat.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
6 years agousb: correctly handle Zero Length Packets
Philippe Mathieu-Daudé [Mon, 4 Jun 2018 15:14:19 +0000 (12:14 -0300)]
usb: correctly handle Zero Length Packets

USB Specification Revision 2.0, §5.5.3:
  The Data stage of a control transfer from an endpoint to the host is complete when the endpoint does one of the following:
  • Has transferred exactly the amount of data specified during the Setup stage
  • Transfers a packet with a payload size less than wMaxPacketSize or transfers a zero-length packet"

hw/usb/redirect.c:802:9: warning: Declared variable-length array (VLA) has zero size
        uint8_t buf[size];
        ^~~~~~~~~~~ ~~~~

Reported-by: Clang Static Analyzer
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20180604151421.23385-2-f4bug@amsat.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
6 years agousb: update docs
Gerd Hoffmann [Tue, 5 Jun 2018 13:29:15 +0000 (15:29 +0200)]
usb: update docs

xhci is rock solid meanwhile.  So move it up in the docs and feature it
as prefered usb host adapter, instead of the old shy version saying "you
might want try ...".

While being at it rework the text on ehci and companion controllers too.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-id: 20180605132915.3640-1-kraxel@redhat.com

6 years agoMerge remote-tracking branch 'remotes/ehabkost/tags/machine-next-pull-request' into...
Peter Maydell [Tue, 12 Jun 2018 09:39:42 +0000 (10:39 +0100)]
Merge remote-tracking branch 'remotes/ehabkost/tags/machine-next-pull-request' into staging

Machine queue, 2018-06-11

* Fix -daemonize hang caused by --preconfig code

# gpg: Signature made Mon 11 Jun 2018 18:32:52 BST
# gpg:                using RSA key 2807936F984DC5A6
# gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>"
# Primary key fingerprint: 5A32 2FD5 ABC4 D3DB ACCF  D1AA 2807 936F 984D C5A6

* remotes/ehabkost/tags/machine-next-pull-request:
  cli: Don't run early event loop if no --preconfig was specified

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
6 years agospapr_pci: Remove unhelpful pagesize warning
David Gibson [Thu, 19 Apr 2018 06:07:40 +0000 (16:07 +1000)]
spapr_pci: Remove unhelpful pagesize warning

By default, the IOMMU model built into the spapr virtual PCI host bridge
supports 4kiB and 64kiB IOMMU page sizes.  However this can be overridden
which may be desirable to allow larger IOMMU page sizes when running a
guest with hugepage backing and passthrough devices.  For that reason a
warning was printed when the device wasn't configured to allow the pagesize
with which guest RAM is backed.

Experience has proven, however, that this message is more confusing than
useful.  Worse it sometimes makes little sense when the host-available page
sizes don't match those available on the guest, which can happen with
a POWER8 guest running on a POWER9 KVM host.

Long term we do want better handling to allow large IOMMU page sizes to be
used, but for now this parameter and warning don't really accomplish it.
So, remove the message, pending a better solution.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agoxics_kvm: use KVM helpers
Cédric Le Goater [Mon, 11 Jun 2018 16:23:10 +0000 (18:23 +0200)]
xics_kvm: use KVM helpers

The KVM helpers hide the low level interface used to communicate to
the XICS KVM device and provide a good cleanup to the XICS KVM models.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agoppc/pnv: fix LPC HC firmware address space
Cédric Le Goater [Mon, 11 Jun 2018 17:12:10 +0000 (19:12 +0200)]
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>
6 years agospapr: handle cpu core unplug via hotplug handler chain
David Hildenbrand [Fri, 8 Jun 2018 12:48:16 +0000 (14:48 +0200)]
spapr: handle cpu core unplug via hotplug handler chain

Factor out cpu core unplug into separate function from
spapr_core_release(). Then use generic hotplug_handler_unplug() to trigger
cpu core unplug, which would call spapr_machine_device_unplug() ->
spapr_core_unplug() in the end.

This way unplug operation is not buried in spapr internals and located
in the same place like in other targets, following similar
logic/call chain across targets.

Acked-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agospapr: handle pc-dimm unplug via hotplug handler chain
David Hildenbrand [Fri, 8 Jun 2018 12:48:15 +0000 (14:48 +0200)]
spapr: handle pc-dimm unplug via hotplug handler chain

Factor out memory unplug into separate function from spapr_lmb_release().
Then use generic hotplug_handler_unplug() to trigger memory unplug,
which will call spapr_machine_device_unplug() -> spapr_memory_unplug()
in the end.

This way unplug operation is not buried in lmb internals and located in
the same place like in other targets, following similar logic/call chain
across targets.

Acked-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agospapr: introduce machine unplug handler
David Hildenbrand [Fri, 8 Jun 2018 12:48:14 +0000 (14:48 +0200)]
spapr: introduce machine unplug handler

We'll be handling unplug of e.g. CPUs and PCDIMMs  via the general
hotplug handler soon, so let's add that handler function.

Acked-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agospapr: move memory hotplug support check into spapr_memory_pre_plug()
David Hildenbrand [Fri, 8 Jun 2018 12:48:13 +0000 (14:48 +0200)]
spapr: move memory hotplug support check into spapr_memory_pre_plug()

Let's finish cleaning up the hotplug handler. This check can be
performed in the pre_plug code as the very first thing.

Signed-off-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agospapr: move lookup of the node into spapr_memory_plug()
David Hildenbrand [Fri, 8 Jun 2018 12:48:12 +0000 (14:48 +0200)]
spapr: move lookup of the node into spapr_memory_plug()

Let's clean the hotplug handler up by moving lookup of the node into
the function where it is actually being used.

Signed-off-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agospapr: no need to verify the node
David Hildenbrand [Fri, 8 Jun 2018 12:48:11 +0000 (14:48 +0200)]
spapr: no need to verify the node

The node property can always be queried and the value has already been
verified in pc_dimm_realize().

Acked-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agotarget/ppc: Allow PIR read in privileged mode
luporl [Fri, 8 Jun 2018 09:46:55 +0000 (11:46 +0200)]
target/ppc: Allow PIR read in privileged mode

According to PowerISA, the PIR register should be readable in privileged
mode also, not only in hypervisor privileged mode.

PowerISA 3.0 - 4.3.3 Processor Identification Register

"Read access to the PIR is privileged; write access is not provided."

Figure 18 in section 4.4.4 explicitly confirms that mfspr PIR is privileged
and doesn't require hypervisor state.

Cc: David Gibson <david@gibson.dropbear.id.au>
Cc: Alexander Graf <agraf@suse.de>
Cc: qemu-ppc@nongnu.org
Signed-off-by: Leandro Lupori <leandro.lupori@gmail.com>
Reviewed-by: Jose Ricardo Ziviani <joserz@linux.ibm.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agoppc4xx_i2c: Clean up and improve error logging
BALATON Zoltan [Wed, 6 Jun 2018 13:31:48 +0000 (15:31 +0200)]
ppc4xx_i2c: Clean up and improve error logging

Make it more readable by converting register indexes to decimal
(avoids lot of superfluous 0x0) and distinguish errors caused by
accessing non-existent vs. unimplemented registers.
No functional change.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agotarget/ppc: extend eieio for POWER9
Cédric Le Goater [Wed, 6 Jun 2018 07:33:53 +0000 (09:33 +0200)]
target/ppc: extend eieio for POWER9

POWER9 introduced a new variant of the eieio instruction using bit 6
as a hint to tell the CPU it is a store-forwarding barrier.

The usage of this eieio extension was recently added in Linux 4.17
which activated the "support for a store forwarding barrier at kernel
entry/exit".

Unfortunately, it is not possible to insert this new eieio instruction
without considerable change in ppc_tr_translate_insn(). So instead we
loosen the QEMU eieio instruction mask and modify the gen_eieio()
helper to test for bit6. On non-POWER9 CPUs, the bit6 is just ignored
but a warning is emitted as this is not an instruction software should
be using.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agomos6522: convert VMSTATE_TIMER_PTR_TEST to VMSTATE_TIMER_PTR
Mark Cave-Ayland [Thu, 7 Jun 2018 17:17:51 +0000 (18:17 +0100)]
mos6522: convert VMSTATE_TIMER_PTR_TEST to VMSTATE_TIMER_PTR

The timers are configured in the mos6522 init function and therefore will
always exist, so the function can never return false.

Peter also pointed out that this is the only remaining user of
VMSTATE_TIMER_PTR_TEST in the codebase, so we might as well just convert it
over to VMSTATE_TIMER_PTR and remove mos6522_timer_exist() as it is no
longer required.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agomos6522: move timer frequency initialisation to mos6522_reset
Mark Cave-Ayland [Thu, 7 Jun 2018 17:17:50 +0000 (18:17 +0100)]
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>
6 years agocuda: embed mos6522_cuda device directly rather than using QOM object link
Mark Cave-Ayland [Thu, 7 Jun 2018 17:17:49 +0000 (18:17 +0100)]
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>
6 years agomos6522: fix vmstate_mos6522_timer version in vmstate_mos6522
Mark Cave-Ayland [Thu, 7 Jun 2018 17:17:48 +0000 (18:17 +0100)]
mos6522: fix vmstate_mos6522_timer version in vmstate_mos6522

This was accidentally introduced when extracting the 6522 VIA functionality
from the CUDA device, and prevents loadvm from completing successfully.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agoppc: add missing FW_CFG_PPC_NVRAM_FLAT definition
Mark Cave-Ayland [Thu, 7 Jun 2018 16:59:55 +0000 (17:59 +0100)]
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>
6 years agoppc: remove obsolete macio_init() definition from mac.h
Mark Cave-Ayland [Thu, 7 Jun 2018 16:59:54 +0000 (17:59 +0100)]
ppc: remove obsolete macio_init() definition from mac.h

Commits b6712ea391 removed the macio_init() function but missed the header
prototype in mac.h. Remove it since it is no longer needed.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agoppc: remove obsolete pci_pmac_init() definitions from mac.h
Mark Cave-Ayland [Thu, 7 Jun 2018 16:59:53 +0000 (17:59 +0100)]
ppc: remove obsolete pci_pmac_init() definitions from mac.h

Commits 7b19318bee and 8ce3f743c7 removed the pci_pmac_init() and
pci_pmac_u3_init() functions but missed the header prototypes in mac.h. Remove
them since they are no longer needed.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agohw/misc/mos6522: Add trailing '\n' to qemu_log() calls
Philippe Mathieu-Daudé [Wed, 6 Jun 2018 14:59:21 +0000 (11:59 -0300)]
hw/misc/mos6522: Add trailing '\n' to qemu_log() calls

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agoMAINTAINERS: Add entries for the MOS6522 VIA device
Philippe Mathieu-Daudé [Wed, 6 Jun 2018 14:59:20 +0000 (11:59 -0300)]
MAINTAINERS: Add entries for the MOS6522 VIA device

Introduced in 51f233ec92c.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agoMAINTAINERS: Add an entry for the MacIO device headers
Philippe Mathieu-Daudé [Wed, 6 Jun 2018 14:59:19 +0000 (11:59 -0300)]
MAINTAINERS: Add an entry for the MacIO device headers

Missed while moved in 7092e84d42b.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agoosdep: powerpc64 align memory to allow 2MB radix THP page tables
Nicholas Piggin [Sun, 6 May 2018 07:29:49 +0000 (17:29 +1000)]
osdep: powerpc64 align memory to allow 2MB radix THP page tables

This allows KVM with the Book3S radix MMU mode to take advantage of
THP and install larger pages in the partition scope page tables (the
host translation).

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agospapr/vio: deprecate the "irq" property
Cédric Le Goater [Tue, 5 Jun 2018 06:56:26 +0000 (08:56 +0200)]
spapr/vio: deprecate the "irq" property

VIO devices have an "irq" property that can be used by the sPAPR IRQ
allocator as an IRQ number hint. But it is not set in QEMU nor in
libvirt. It brings unnecessary complexity to the underlying layers
managing the IRQ number space and it is in full opposition with the
new static IRQ allocator we want to introduce in sPAPR.

Let's deprecate it to simplify the spapr_irq_alloc routine in the
future.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
[dwg: Check qtest_enabled() to suppress bogus warnings from make check]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agotarget/ppc: Allow privileged access to SPR_PCR
Joel Stanley [Mon, 4 Jun 2018 08:45:13 +0000 (18:15 +0930)]
target/ppc: Allow privileged access to SPR_PCR

The powerpc Linux kernel[1] and skiboot firmware[2] recently gained changes
that cause the Processor Compatibility Register (PCR) SPR to be cleared.

These changes cause Linux to fail to boot on the Qemu powernv machine
with an error:

 Trying to write privileged spr 338 (0x152) at 0000000030017f0c

With this patch Qemu makes this register available as a hypervisor
privileged register.

Note that bits set in this register disable features of the processor.
Currently the only register state that is supported is when the register
is zeroed (enable all features). This is sufficient for guests to
once again boot.

[1] https://lkml.kernel.org/r/20180518013742.24095-1-mikey@neuling.org
[2] https://patchwork.ozlabs.org/patch/915932/

Signed-off-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agotarget/ppc: Factor out the parsing in kvmppc_get_cpu_characteristics()
Suraj Jitindar Singh [Fri, 11 May 2018 06:25:07 +0000 (16:25 +1000)]
target/ppc: Factor out the parsing in kvmppc_get_cpu_characteristics()

Factor out the parsing of struct kvm_ppc_cpu_char in
kvmppc_get_cpu_characteristics() into a separate function for each cap
for simplicity.

Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agoprep: fix keyboard for the 40p machine
Mark Cave-Ayland [Thu, 24 May 2018 05:39:58 +0000 (06:39 +0100)]
prep: fix keyboard for the 40p machine

Commit 72d3d8f052 "hw/isa/superio: Add a keyboard/mouse controller (8042)"
added an 8042 keyboard device to the PC87312 superio device to replace that
being used by the prep machine.

Unfortunately this commit didn't do the same for the 40p machine which broke
the keyboard by registering two 8042 keyboard devices at the same address.

Resolve this by similarly removing the 8042 keyboard from the 40p machine as
done for the prep machine in commit 72d3d8f052.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years ago40p: remove pci_allow_0_address = true from 40p machine class
Mark Cave-Ayland [Fri, 25 May 2018 21:15:23 +0000 (22:15 +0100)]
40p: remove pci_allow_0_address = true from 40p machine class

The Linux sandalfoot zImage has an initialisation process which resets the
VGA controller by setting all the BAR addresses to zero to access the VGA
ioports at their legacy addresses.

Unfortunately setting the framebuffer BAR to address 0 makes the framebuffer
memory overlap the internal VGA memory causing accesses to fail, and so
prevents the kernel from switching successfully to text mode.

Since OpenHackWare configures the framebuffer BAR address outside of the legacy
VGA internal memory space, remove pci_allow_0_address from the 40p machine class
which causes the BAR reprogramming to zero to fail and so the VGA internal
memory can be accessed correctly again.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agotarget/ppc: Use proper logging function for possible guest errors
Thomas Huth [Mon, 28 May 2018 18:11:19 +0000 (20:11 +0200)]
target/ppc: Use proper logging function for possible guest errors

fprintf() and qemu_log_separate() are frowned upon these days for printing
logging information in QEMU. Accessing the wrong SPRs indicates wrong guest
behaviour in most cases, and we've got a proper way to log such situations,
which is the qemu_log_mask(LOG_GUEST_ERROR, ...) function. So use this
function now for logging the bad SPR accesses instead.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agohw/ppc/spapr_drc: Replace error_setg(&error_abort) by error_report() + abort()
Philippe Mathieu-Daudé [Tue, 29 May 2018 17:48:19 +0000 (14:48 -0300)]
hw/ppc/spapr_drc: Replace error_setg(&error_abort) by error_report() + abort()

Use error_report() + abort() instead of error_setg(&error_abort),
as suggested by the "qapi/error.h" documentation:

    Please don't error_setg(&error_fatal, ...), use error_report() and
    exit(), because that's more obvious.
    Likewise, don't error_setg(&error_abort, ...), use assert().

Use abort() instead of the suggested assert() because the error message
already got displayed.

Suggested-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agouninorth: remove token register from uninorth device
Mark Cave-Ayland [Sun, 6 May 2018 14:20:05 +0000 (15:20 +0100)]
uninorth: remove token register from uninorth device

>From observation of various OS sources it can be seen that the token register
introduced in 4e46dcdbd3 "PPC: Newworld: Add uninorth token register" is not
required, since the only register currently implemented is the uninorth hardware
version which is read-only.

Remove the token register implementation and instead return the uninorth
version corresponding to the hardware.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agomacio: add trace-events to timer device
Mark Cave-Ayland [Sun, 6 May 2018 14:20:03 +0000 (15:20 +0100)]
macio: add trace-events to timer device

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agoppc440_pcix: Fix a typo in setting a register (Coverity CID1390577)
BALATON Zoltan [Fri, 4 May 2018 08:45:50 +0000 (10:45 +0200)]
ppc440_pcix: Fix a typo in setting a register (Coverity CID1390577)

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agonvdimm: make persistence option symbolic
Ross Zwisler [Thu, 7 Jun 2018 22:31:11 +0000 (16:31 -0600)]
nvdimm: make persistence option symbolic

Replace the "nvdimm-cap" option which took numeric arguments such as "2"
with a more user friendly "nvdimm-persistence" option which takes symbolic
arguments "cpu" or "mem-ctrl".

Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Suggested-by: Michael S. Tsirkin <mst@redhat.com>
Suggested-by: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
6 years agohw/i386: Update SSDT table used by "make check"
Ross Zwisler [Thu, 7 Jun 2018 22:31:09 +0000 (16:31 -0600)]
hw/i386: Update SSDT table used by "make check"

This commit:

commit aa78a16d8645 ("hw/i386: Rename 2.13 machine types to 3.0")

updated the name used to create the q35 machine, which in turn changed the
SSDT table which is generated when we run "make check":

  acpi-test: Warning! SSDT mismatch. Actual [asl:/tmp/asl-QZDWJZ.dsl,
  aml:/tmp/aml-T8JYJZ], Expected [asl:/tmp/asl-DTWVJZ.dsl,
  aml:tests/acpi-test-data/q35/SSDT.dimmpxm].

Here's the only difference, aside from the checksum:

  <     Name (MEMA, 0x07FFF000)
  ---
  >     Name (MEMA, 0x07FFE000)

Update the binary table that we compare against so it reflects this name
change.

Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: Cornelia Huck <cohuck@redhat.com>
Cc: Thomas Huth <thuth@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Fixes: commit aa78a16d8645 ("hw/i386: Rename 2.13 machine types to 3.0")
Tested-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
6 years agoqapi: add disabled parameter to block-dirty-bitmap-add
Vladimir Sementsov-Ogievskiy [Mon, 11 Jun 2018 18:53:32 +0000 (14:53 -0400)]
qapi: add disabled parameter to block-dirty-bitmap-add

This is needed, for example, to create a new bitmap and merge several
disabled bitmaps into a new one. Without this flag we will have to
put block-dirty-bitmap-add and block-dirty-bitmap-disable into one
transaction.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>
Message-id: 20180606182449.1607-6-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
6 years agoqapi: add x-block-dirty-bitmap-merge
Vladimir Sementsov-Ogievskiy [Mon, 11 Jun 2018 18:53:32 +0000 (14:53 -0400)]
qapi: add x-block-dirty-bitmap-merge

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>
Message-id: 20180606182449.1607-5-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
6 years agoqmp: transaction support for x-block-dirty-bitmap-enable/disable
Vladimir Sementsov-Ogievskiy [Mon, 11 Jun 2018 18:53:32 +0000 (14:53 -0400)]
qmp: transaction support for x-block-dirty-bitmap-enable/disable

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>
Message-id: 20180606182449.1607-4-jsnow@redhat.com
[Added x- prefix. --js]
Signed-off-by: John Snow <jsnow@redhat.com>
6 years agoqapi: add x-block-dirty-bitmap-enable/disable
Vladimir Sementsov-Ogievskiy [Mon, 11 Jun 2018 18:53:32 +0000 (14:53 -0400)]
qapi: add x-block-dirty-bitmap-enable/disable

Expose the ability to turn bitmaps "on" or "off". This is experimental
and principally for the sake of the Libvirt Checkpoints API, and it may
or may not be committed for 3.0.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>
Message-id: 20180606182449.1607-3-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
6 years agoblock/dirty-bitmap: add lock to bdrv_enable/disable_dirty_bitmap
Vladimir Sementsov-Ogievskiy [Mon, 11 Jun 2018 18:53:31 +0000 (14:53 -0400)]
block/dirty-bitmap: add lock to bdrv_enable/disable_dirty_bitmap

Add locks and remove comments about BQL accordingly to
dirty_bitmap_mutex definition in block_int.h.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>
Message-id: 20180606182449.1607-2-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
6 years agoblock: simplify code around releasing bitmaps
Paolo Bonzini [Mon, 11 Jun 2018 18:53:31 +0000 (14:53 -0400)]
block: simplify code around releasing bitmaps

QLIST_REMOVE does not require walking the list, and once the "bitmap"
argument is removed from bdrv_do_release_matching_dirty_bitmap_locked
the code simplifies a lot and it is worth inlining everything in the
callers of bdrv_do_release_matching_dirty_bitmap.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 20180326104037.6894-1-pbonzini@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
6 years agoblock: remove bdrv_dirty_bitmap_make_anon
Paolo Bonzini [Mon, 11 Jun 2018 18:53:31 +0000 (14:53 -0400)]
block: remove bdrv_dirty_bitmap_make_anon

All this function is doing will be repeated by
bdrv_do_release_matching_dirty_bitmap_locked, except
resetting bm->persistent.  But even that does not matter
because the bitmap will be freed.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20180323164254.26487-1-pbonzini@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
6 years agocli: Don't run early event loop if no --preconfig was specified
Igor Mammedov [Tue, 5 Jun 2018 14:00:42 +0000 (16:00 +0200)]
cli: Don't run early event loop if no --preconfig was specified

After 047f7038f586d215 it is possible for event loop to run two
times. First time whilst parsing command line options (the idea
is to bring up monitor early so that management applications can
tweak config before machine is initialized). And the second time
is after everything is set up (this is the usual place). In both
cases the event loop is called as main_loop_wait(nonblocking =
false) which causes the event loop to block until at least one
event occurred.

Now, consider that somebody (i.e. libvirt) calls us with
-daemonize. This operation is split in two steps. The main()
calls os_daemonize() which fork()-s and then waits in read()
until child notifies it via write():

/qemu.git $ ./x86_64-softmmu/qemu-system-x86_64 -S -daemonize \
  -no-user-config -nodefaults -nographic

  main():                child:
    os_daemonize():
      read(pipe[0])

                           main_loop():
                             main_loop_wait(false)

                           os_setup_post():
                             write(pipe[1])

                           main_loop():
                             main_loop_wait(false)

Here it can be clearly seen that main() does not exit until an
event occurs, but at the same time nobody will touch the monitor
socket until their exec("qemu-system-*") finishes. So the whole
thing deadlocks.

The solution is to not call main_loop_wait() unless --preconfig was
specified (in which case caller knows they must connect to the
socket before exec() finishes).

Patch also fixes hang when -nodefaults option is used, which were
causing QEMU hang in the early main_loop_wait() indefinitely by
the same means (not calling main_loop_wait() unless --preconfig
is present on CLI)

Based on
  From: Michal Privoznik <mprivozn@redhat.com>
  Subject: [PATCH] cli: Don't run early event loop if no --preconfig was specified
  Message-Id: <ad910973c593c5ac2fed3a10ea958f7e9c12f82c.1527935663.git.mprivozn@redhat.com>
Fixes: 047f7038f586d215
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <1528207243-268226-2-git-send-email-imammedo@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
6 years agoMerge remote-tracking branch 'remotes/ehabkost/tags/x86-next-pull-request' into staging
Peter Maydell [Mon, 11 Jun 2018 17:24:56 +0000 (18:24 +0100)]
Merge remote-tracking branch 'remotes/ehabkost/tags/x86-next-pull-request' into staging

x86 queue, 2018-06-11

* Support for CPUID[0x8000001D] (AMD Cache Topology Information)
* pc bug fix: Remove PC_COMPAT_2_12 from 3.0 machine-types

# gpg: Signature made Mon 11 Jun 2018 18:22:48 BST
# gpg:                using RSA key 2807936F984DC5A6
# gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>"
# Primary key fingerprint: 5A32 2FD5 ABC4 D3DB ACCF  D1AA 2807 936F 984D C5A6

* remotes/ehabkost/tags/x86-next-pull-request:
  pc: Remove PC_COMPAT_2_12 from 3.0 machine-types
  i386: Populate AMD Processor Cache Information for cpuid 0x8000001D
  i386: Clean up cache CPUID code

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
6 years agoMerge remote-tracking branch 'remotes/maxreitz/tags/pull-block-2018-06-11' into staging
Peter Maydell [Mon, 11 Jun 2018 14:31:20 +0000 (15:31 +0100)]
Merge remote-tracking branch 'remotes/maxreitz/tags/pull-block-2018-06-11' into staging

Block patches:
- Various bug fixes
- Removal of qemu-img convert's deprecated -s option
- qemu-io now exits with an error when a command failed

# gpg: Signature made Mon 11 Jun 2018 15:23:42 BST
# gpg:                using RSA key F407DB0061D5CF40
# gpg: Good signature from "Max Reitz <mreitz@redhat.com>"
# Primary key fingerprint: 91BE B60A 30DB 3E88 57D1  1829 F407 DB00 61D5 CF40

* remotes/maxreitz/tags/pull-block-2018-06-11: (29 commits)
  iotests: Add case for a corrupted inactive image
  qcow2: Do not mark inactive images corrupt
  block: Make bdrv_is_writable() public
  throttle: Fix crash on reopen
  block/qcow2-bitmap: fix free_bitmap_clusters
  qemu-img: Remove deprecated -s snapshot_id_or_name option
  iotests: Fix 219's timing
  iotests: improve pause_job
  iotests: Test post-backing convert target behavior
  qemu-img: Special post-backing convert handling
  iotests: Add test for rebasing with relative paths
  qemu-img: Resolve relative backing paths in rebase
  iotests: Let 216 make use of qemu-io's exit code
  iotests.py: Add qemu_io_silent
  qemu-io: Exit with error when a command failed
  qemu-io: Let command functions return error code
  qemu-io: Drop command functions' return values
  iotests: Repairing error during snapshot deletion
  qcow2: Repair OFLAG_COPIED when fixing leaks
  iotests: Rework 113
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
6 years agoiotests: Add case for a corrupted inactive image
Max Reitz [Wed, 6 Jun 2018 19:37:02 +0000 (21:37 +0200)]
iotests: Add case for a corrupted inactive image

Reviewed-by: John Snow <jsnow@redhat.com>
Tested-by: Jeff Cody <jcody@redhat.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20180606193702.7113-4-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
6 years agoqcow2: Do not mark inactive images corrupt
Max Reitz [Wed, 6 Jun 2018 19:37:01 +0000 (21:37 +0200)]
qcow2: Do not mark inactive images corrupt

When signaling a corruption on a read-only image, qcow2 already makes
fatal events non-fatal (i.e., they will not result in the image being
closed, and the image header's corrupt flag will not be set).  This is
necessary because we cannot set the corrupt flag on read-only images,
and it is possible because further corruption of read-only images is
impossible.

Inactive images are effectively read-only, too, so we should do the same
for them.  bdrv_is_writable() can tell us whether an image can actually
be written to, so use its result instead of !bs->read_only.

(Otherwise, the assert(!(bs->open_flags & BDRV_O_INACTIVE)) in
bdrv_co_pwritev() will fail, crashing qemu.)

Cc: qemu-stable@nongnu.org
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20180606193702.7113-3-mreitz@redhat.com
Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
6 years agoblock: Make bdrv_is_writable() public
Max Reitz [Wed, 6 Jun 2018 19:37:00 +0000 (21:37 +0200)]
block: Make bdrv_is_writable() public

This is a useful function for the whole block layer, so make it public.
At the same time, users outside of block.c probably do not need to make
use of the reopen functionality, so rename the current function to
bdrv_is_writable_after_reopen() create a new bdrv_is_writable() function
that just passes NULL to it for the reopen queue.

Cc: qemu-stable@nongnu.org
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20180606193702.7113-2-mreitz@redhat.com
Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
6 years agothrottle: Fix crash on reopen
Alberto Garcia [Fri, 8 Jun 2018 15:15:36 +0000 (18:15 +0300)]
throttle: Fix crash on reopen

The throttle block filter can be reopened, and with this it is
possible to change the throttle group that the filter belongs to.

The way the code does that is the following:

  - On throttle_reopen_prepare(): create a new ThrottleGroupMember
    and attach it to the new throttle group.

  - On throttle_reopen_commit(): detach the old ThrottleGroupMember,
    delete it and replace it with the new one.

The problem with this is that by replacing the ThrottleGroupMember the
previous value of io_limits_disabled is lost, causing an assertion
failure in throttle_co_drain_end().

This problem can be reproduced by reopening a throttle node:

   $QEMU -monitor stdio
   -object throttle-group,id=tg0,x-iops-total=1000 \
   -blockdev node-name=hd0,driver=qcow2,file.driver=file,file.filename=hd.qcow2 \
   -blockdev node-name=root,driver=throttle,throttle-group=tg0,file=hd0,read-only=on

   (qemu) block_stream root
   block/throttle.c:214: throttle_co_drain_end: Assertion `tgm->io_limits_disabled' failed.

Since we only want to change the throttle group on reopen there's no
need to create a ThrottleGroupMember and discard the old one. It's
easier if we simply detach it from its current group and attach it to
the new one.

Signed-off-by: Alberto Garcia <berto@igalia.com>
Message-id: 20180608151536.7378-1-berto@igalia.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
6 years agoblock/qcow2-bitmap: fix free_bitmap_clusters
Vladimir Sementsov-Ogievskiy [Fri, 8 Jun 2018 10:12:25 +0000 (13:12 +0300)]
block/qcow2-bitmap: fix free_bitmap_clusters

This assert may fail, because bitmap_table is not initialized. Just
drop it, as it's obvious, that bitmap_table_load sets bitmap_table
parameter only when returning zero.

Reported-by: Pavel Butsykin <pbutsykin@virtuozzo.com>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-id: 20180608101225.2575-1-vsementsov@virtuozzo.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
6 years agoqemu-img: Remove deprecated -s snapshot_id_or_name option
Thomas Huth [Wed, 6 Jun 2018 12:35:51 +0000 (14:35 +0200)]
qemu-img: Remove deprecated -s snapshot_id_or_name option

It has been marked as deprecated since QEMU v2.0 already, so it
is time now to finally remove it.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-id: 1528288551-31641-1-git-send-email-thuth@redhat.com
Reviewed-by: Jeff Cody <jcody@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
6 years agoiotests: Fix 219's timing
Max Reitz [Wed, 6 Jun 2018 19:06:28 +0000 (21:06 +0200)]
iotests: Fix 219's timing

219 has two issues that may lead to sporadic failure, both of which are
the result of issuing query-jobs too early after a job has been
modified.  This can then lead to different results based on whether the
modification has taken effect already or not.

First, query-jobs is issued right after the job has been created.
Besides its current progress possibly being in any random state (which
has already been taken care of), its total progress too is basically
arbitrary, because the job may not yet have been able to determine it.
This patch addresses this by just filtering the total progress, like
what has been done for the current progress already.  However, for more
clarity, the filtering is changed to replace the values by a string
'FILTERED' instead of deleting them.

Secondly, query-jobs is issued right after a job has been resumed.  The
job may or may not yet have had the time to actually perform any I/O,
and thus its current progress may or may not have advanced.  To make
sure it has indeed advanced (which is what the reference output already
assumes), keep querying it until it has.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20180606190628.8170-1-mreitz@redhat.com
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
6 years agoiotests: improve pause_job
Vladimir Sementsov-Ogievskiy [Fri, 1 Jun 2018 11:59:23 +0000 (14:59 +0300)]
iotests: improve pause_job

It's possible, that job was finished during waiting. In this case we
will see error message "Timeout waiting for job to pause" which is not
very informative. So, let's check during waiting iteration that the job
exists.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-id: 20180601115923.17159-1-vsementsov@virtuozzo.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
6 years agoiotests: Test post-backing convert target behavior
Max Reitz [Tue, 1 May 2018 16:57:50 +0000 (18:57 +0200)]
iotests: Test post-backing convert target behavior

This adds a test case to 122 for what happens when you convert to a
target with a backing file that is shorter than the target, and the
image format does not support efficient zero writes (as is the case with
qcow2 v2).

Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20180501165750.19242-3-mreitz@redhat.com
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
6 years agoqemu-img: Special post-backing convert handling
Max Reitz [Tue, 1 May 2018 16:57:49 +0000 (18:57 +0200)]
qemu-img: Special post-backing convert handling

Currently, qemu-img convert writes zeroes when it reads zeroes.
Sometimes it does not because the target is initialized to zeroes
anyway, so we do not need to overwrite (and thus potentially allocate)
it.  This is never the case for targets with backing files, though.  But
even they may have an area that is initialized to zeroes, and that is
the area past the end of the backing file (if that is shorter than the
overlay).

So if the target format's unallocated blocks are zero and there is a gap
between the target's backing file's end and the target's end, we do not
have to explicitly write zeroes there.

Buglink: https://bugzilla.redhat.com/show_bug.cgi?id=1527898
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20180501165750.19242-2-mreitz@redhat.com
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
6 years agoiotests: Add test for rebasing with relative paths
Max Reitz [Wed, 9 May 2018 18:20:02 +0000 (20:20 +0200)]
iotests: Add test for rebasing with relative paths

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 20180509182002.8044-3-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
6 years agoqemu-img: Resolve relative backing paths in rebase
Max Reitz [Wed, 9 May 2018 18:20:01 +0000 (20:20 +0200)]
qemu-img: Resolve relative backing paths in rebase

Currently, rebase interprets a relative path for the new backing image
as follows:
(1) Open the new backing image with the given relative path (thus relative to
    qemu-img's working directory).
(2) Write it directly into the overlay's backing path field (thus
    relative to the overlay).

If the overlay is not in qemu-img's working directory, both will be
different interpretations, which may either lead to an error somewhere
(either rebase fails because it cannot open the new backing image, or
your overlay becomes unusable because its backing path does not point to
a file), or, even worse, it may result in your rebase being performed
for a different backing file than what your overlay will point to after
the rebase.

Fix this by interpreting the target backing path as relative to the
overlay, like qemu-img does everywhere else.

Buglink: https://bugzilla.redhat.com/show_bug.cgi?id=1569835
Cc: qemu-stable@nongnu.org
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20180509182002.8044-2-mreitz@redhat.com
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
6 years agoiotests: Let 216 make use of qemu-io's exit code
Max Reitz [Wed, 9 May 2018 19:43:02 +0000 (21:43 +0200)]
iotests: Let 216 make use of qemu-io's exit code

As a showcase of how you can use qemu-io's exit code to determine
success or failure (same for qemu-img), this test is changed to use
qemu_io_silent() instead of qemu_io(), and to assert the exit code
instead of logging the filtered result.

One real advantage of this is that in case of an error, you get a
backtrace that helps you locate the issue in the test file quickly.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 20180509194302.21585-6-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
6 years agoiotests.py: Add qemu_io_silent
Max Reitz [Wed, 9 May 2018 19:43:01 +0000 (21:43 +0200)]
iotests.py: Add qemu_io_silent

With qemu-io now returning a useful exit code, some tests may find it
sufficient to just query that instead of logging (and filtering) the
whole output.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 20180509194302.21585-5-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
6 years agoqemu-io: Exit with error when a command failed
Max Reitz [Wed, 9 May 2018 19:43:00 +0000 (21:43 +0200)]
qemu-io: Exit with error when a command failed

Currently, qemu-io basically always returns success when it gets to
interactive mode (so once the whole command line has been parsed; even
before the commands on the command line are interpreted).  That is not
very useful.

This patch makes qemu-io return failure when any of the executed
commands failed.

Buglink: https://bugzilla.redhat.com/show_bug.cgi?id=1519617
Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 20180509194302.21585-4-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
6 years agoqemu-io: Let command functions return error code
Max Reitz [Wed, 9 May 2018 19:42:59 +0000 (21:42 +0200)]
qemu-io: Let command functions return error code

This is basically what everything else in the qemu code base does, so we
can do it here, too.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 20180509194302.21585-3-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
6 years agoqemu-io: Drop command functions' return values
Max Reitz [Wed, 9 May 2018 19:42:58 +0000 (21:42 +0200)]
qemu-io: Drop command functions' return values

For qemu-io, a function returns an integer with two possible values: 0
for "qemu-io may continue execution", or 1 for "qemu-io should exit".
However, there is only a single command that returns 1, and that is
"quit".

So let's turn this case into a global variable instead so we can make
better use of the return value in a later patch.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 20180509194302.21585-2-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
6 years agoiotests: Repairing error during snapshot deletion
Max Reitz [Wed, 9 May 2018 20:00:59 +0000 (22:00 +0200)]
iotests: Repairing error during snapshot deletion

This adds a test for an I/O error during snapshot deletion, and maybe
more importantly, for how to repair the resulting image.  If the
snapshot has been deleted before the error occurs, the only negative
result will be leaked clusters -- and those should be repairable with
qemu-img check -r leaks.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 20180509200059.31125-3-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
6 years agoqcow2: Repair OFLAG_COPIED when fixing leaks
Max Reitz [Wed, 9 May 2018 20:00:58 +0000 (22:00 +0200)]
qcow2: Repair OFLAG_COPIED when fixing leaks

Repairing OFLAG_COPIED is usually safe because it is done after the
refcounts have been repaired.  Therefore, it we did not find anyone else
referencing a data or L2 cluster, it makes no sense to not set
OFLAG_COPIED -- and the other direction (clearing OFLAG_COPIED) is
always safe, anyway, it may just induce leaks.

Furthermore, if OFLAG_COPIED is actually consistent with a wrong (leaky)
refcount, we will decrement the refcount with -r leaks, but OFLAG_COPIED
will then be wrong.  qemu-img check should not produce images that are
more corrupted afterwards then they were before.

Buglink: https://bugzilla.redhat.com/show_bug.cgi?id=1527085
Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 20180509200059.31125-2-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
6 years agoiotests: Rework 113
Max Reitz [Wed, 9 May 2018 21:00:23 +0000 (23:00 +0200)]
iotests: Rework 113

This test case has been broken since 398e6ad014df261d (roughly half a
year).  qemu-img amend requires its output image to be R/W, so it opens
it as such; the node is then turned into an read-only node automatically
which is now accompanied by a warning, however.  This warning has not
been part of the reference output.

For one thing, this warning shows that we cannot keep the test case as
it is.  We would need a format that has no create_opts but that does
have write support -- we do not have such a format, though.

Another thing is that qemu now actually checks whether an image format
supports amendment instead of whether it has create_opts (since the
former always implies the latter).  So we can now use any format that
does not support amendment (even if it supports creation) and thus test
the same code path.

The reason nobody has noticed the breakage until now of course is the
fact that nobody runs the iotests for nbd+bochs.  There actually was
never any reason to set the protocol to "nbd" but because that was
technically correct; functionally it made no difference.  So that is the
first thing we are going to change: Make the protocol "file" instead so
that people might actually notice breakage here.

Secondly, now that bochs no longer works for the amend test case, we
have to change the format there anyway.  Set let us just bend the truth
a bit, declare this test a raw test.  In fact, that does not even
concern the bochs test cases, other than the output now reading 'bochs'
instead of 'IMGFMT'.

So with this test now being a raw test, we can rework the amend test
case to use raw instead.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 20180509210023.20283-8-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
6 years agoiotests: Test help option for unsupporting formats
Max Reitz [Wed, 9 May 2018 21:00:22 +0000 (23:00 +0200)]
iotests: Test help option for unsupporting formats

This adds test cases to 082 for qemu-img create/convert/amend "-o help"
on formats that do not support creation or amendment, respectively.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 20180509210023.20283-7-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
6 years agoqemu-img: Recognize no creation support in -o help
Max Reitz [Wed, 9 May 2018 21:00:21 +0000 (23:00 +0200)]
qemu-img: Recognize no creation support in -o help

The only users of print_block_option_help() are qemu-img create and
qemu-img convert for the output image, so this function is always used
for image creation (it used to be used for amendment also, but that is
no longer the case).

So if image creation is not supported by either the format or the
protocol, there is no need to print any option description, because the
user cannot create an image like this anyway.

This also fixes an assertion failure:

    $ qemu-img create -f bochs -o help
    Supported options:
    qemu-img: util/qemu-option.c:219:
    qemu_opts_print_help: Assertion `list' failed.
    [1]    24831 abort (core dumped)  qemu-img create -f bochs -o help

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 20180509210023.20283-6-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
6 years agoqemu-img: Add print_amend_option_help()
Max Reitz [Wed, 9 May 2018 21:00:20 +0000 (23:00 +0200)]
qemu-img: Add print_amend_option_help()

The more generic print_block_option_help() function is not really
suitable for qemu-img amend, for a couple of reasons:
(1) We do not need to append the protocol-level options, as amendment
    happens only on one node and does not descend downwards to its
    children.
(2) print_block_option_help() says those options are "supported".  For
    option amendment, we do not really know that.  So this new function
    explicitly says that those options are the creation options, and not
    all of them may be supported.
(3) If the driver does not support option amendment, we should not print
    anything (except for an error message that amendment is not
    supported).

Buglink: https://bugzilla.redhat.com/show_bug.cgi?id=1537956
Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 20180509210023.20283-5-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
6 years agoqemu-option: Pull out "Supported options" print
Max Reitz [Wed, 9 May 2018 21:00:19 +0000 (23:00 +0200)]
qemu-option: Pull out "Supported options" print

It really is up to the caller to decide what this list of options means.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 20180509210023.20283-4-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
6 years agoblock: Add Error parameter to bdrv_amend_options
Max Reitz [Wed, 9 May 2018 21:00:18 +0000 (23:00 +0200)]
block: Add Error parameter to bdrv_amend_options

Looking at the qcow2 code that is riddled with error_report() calls,
this is really how it should have been from the start.

Along the way, turn the target_version/current_version comparisons at
the beginning of qcow2_downgrade() into assertions (the caller has to
make sure these conditions are met), and rephrase the error message on
using compat=1.1 to get refcount widths other than 16 bits.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20180509210023.20283-3-mreitz@redhat.com
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
6 years agoqemu-img: Amendment support implies create_opts
Max Reitz [Wed, 9 May 2018 21:00:17 +0000 (23:00 +0200)]
qemu-img: Amendment support implies create_opts

Instead of checking whether a driver has a non-NULL create_opts we
should check whether it supports image amendment in the first place.  If
it does, it must have create_opts.

On the other hand, if it does not have create_opts (so it does not
support amendment either), the error message "does not support any
options" is a bit useless.  Stating clearly that the driver has no
amendment support whatsoever is probably better.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 20180509210023.20283-2-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
6 years agoiotests: Add creation test to 153
Max Reitz [Wed, 9 May 2018 21:53:36 +0000 (23:53 +0200)]
iotests: Add creation test to 153

This patch adds a test case to 153 which tries to overwrite an image
(using qemu-img create) while it is in use.  Without the original user
explicitly sharing the necessary permissions (writing and truncation),
this should not be allowed.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Message-id: 20180509215336.31304-4-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
6 years agoblock/file-posix: File locking during creation
Max Reitz [Wed, 9 May 2018 21:53:35 +0000 (23:53 +0200)]
block/file-posix: File locking during creation

When creating a file, we should take the WRITE and RESIZE permissions.
We do not need either for the creation itself, but we do need them for
clearing and resizing it.  So we can take the proper permissions by
replacing O_TRUNC with an explicit truncation to 0, and by taking the
appropriate file locks between those two steps.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20180509215336.31304-3-mreitz@redhat.com
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
6 years agoblock/file-posix: Pass FD to locking helpers
Max Reitz [Wed, 9 May 2018 21:53:34 +0000 (23:53 +0200)]
block/file-posix: Pass FD to locking helpers

raw_apply_lock_bytes() and raw_check_lock_bytes() currently take a
BDRVRawState *, but they only use the lock_fd field.  During image
creation, we do not have a BDRVRawState, but we do have an FD; so if we
want to reuse the functions there, we should modify them to receive only
the FD.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Message-id: 20180509215336.31304-2-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
6 years agolinux-user/sparc64: Add inotify_rm_watch and tee syscalls
Richard Henderson [Thu, 7 Jun 2018 18:48:44 +0000 (11:48 -0700)]
linux-user/sparc64: Add inotify_rm_watch and tee syscalls

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20180607184844.30126-5-richard.henderson@linaro.org>

6 years agolinux-user/microblaze: Fix typo in accept4 syscall
Richard Henderson [Thu, 7 Jun 2018 18:48:43 +0000 (11:48 -0700)]
linux-user/microblaze: Fix typo in accept4 syscall

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20180607184844.30126-4-richard.henderson@linaro.org>
[lv: replace tabs by spaces]
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
6 years agolinux-user/hppa: Fix typo in mknodat syscall
Richard Henderson [Thu, 7 Jun 2018 18:48:42 +0000 (11:48 -0700)]
linux-user/hppa: Fix typo in mknodat syscall

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20180607184844.30126-3-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
6 years agolinux-user/alpha: Fix epoll syscalls
Richard Henderson [Thu, 7 Jun 2018 18:48:41 +0000 (11:48 -0700)]
linux-user/alpha: Fix epoll syscalls

These were named incorrectly, going so far as to invade strace.list.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20180607184844.30126-2-richard.henderson@linaro.org>
[lv: replace tabs by spaces]
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
6 years agoqemu-binfmt-conf.sh: ignore the OS/ABI field
Laurent Vivier [Tue, 5 Jun 2018 19:47:25 +0000 (21:47 +0200)]
qemu-binfmt-conf.sh: ignore the OS/ABI field

Most of the binaries have a value of "UNIX - System V" for the OS/ABI.

But cc1 has a value of "UNIX - GNU", and if we don't update the binfmt
mask to ignore the OS/ABI field, gcc fails to execute it:

gcc: error trying to exec '/usr/lib/gcc/m68k-linux-gnu/7/cc1': execv: Exec format error

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20180605194725.8585-1-laurent@vivier.eu>