Commit Graph

2169 Commits

Author SHA1 Message Date
Paolo Bonzini
0266359e57 cpu-exec: add a new CF_USE_ICOUNT cflag
Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-12-23 10:14:53 +01:00
Paolo Bonzini
2cbcfb281a atomic: fix position of volatile qualifier
What needs to be volatile is not the pointer, but the pointed-to
value!

Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-12-23 10:14:46 +01:00
Peter Maydell
c95f3901b4 sdl2: fixes, cleanups and opengl preparation.
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Merge remote-tracking branch 'remotes/kraxel/tags/pull-sdl-20141219-1' into staging

sdl2: fixes, cleanups and opengl preparation.

# gpg: Signature made Fri 19 Dec 2014 09:06:07 GMT using RSA key ID D3E87138
# 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>"

* remotes/kraxel/tags/pull-sdl-20141219-1:
  sdl2: Work around SDL2 SDL_ShowWindow() bug
  sdl2: Use correct sdl2_console for window events
  sdl2: move sdl2_2d_refresh to sdl2-2d.c
  sdl2: factor out sdl2_poll_events
  sdl2: add+use sdl2_2d_redraw function.
  sdl2: move sdl_switch to sdl2-2d.c
  sdl2: overhaul window size handling
  sdl2: move sdl_update to new sdl2-2d.c
  sdl2: turn on keyboard grabs
  sdl2: move keyboard input code to new sdl2-input.c
  sdl2: rename sdl2_state to sdl2_console, move to header file
  sdl: move version logic from source code to makefile

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-12-21 23:17:00 +00:00
Peter Maydell
86b182ac0e Xtensa updates for 2.3:
- fix cross-page opcode handling;
 - move window overflow exception generation decision to translation phase;
 - don't generate dead code after privilege, window overflow or coprocessor
   exception;
 - add monitor command 'info opcount' for dumping TCG opcode counters.
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Merge remote-tracking branch 'remotes/xtensa/tags/20141217-xtensa' into staging

Xtensa updates for 2.3:

- fix cross-page opcode handling;
- move window overflow exception generation decision to translation phase;
- don't generate dead code after privilege, window overflow or coprocessor
  exception;
- add monitor command 'info opcount' for dumping TCG opcode counters.

# gpg: Signature made Wed 17 Dec 2014 02:57:01 GMT using RSA key ID F83FA044
# gpg: Good signature from "Max Filippov <max.filippov@cogentembedded.com>"
# gpg:                 aka "Max Filippov <jcmvbkbc@gmail.com>"

* remotes/xtensa/tags/20141217-xtensa:
  target-xtensa: don't generate dead code
  target-xtensa: record available window in TB flags
  target-xtensa: test cross-page opcode
  target-xtensa: fix translation for opcodes crossing page boundary
  tcg: add separate monitor command to dump opcode counters

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-12-17 17:31:26 +00:00
Gerd Hoffmann
62959ffe45 sdl2: move sdl2_2d_refresh to sdl2-2d.c
Now that common event handling code is split off, we can move
over sdl_refresh to sdl2-2d.c, and rename it to sdl2_2d_refresh.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
2014-12-17 12:44:01 +01:00
Gerd Hoffmann
63ed4907cb sdl2: factor out sdl2_poll_events
Create a new function to poll and handle sdl2 events,
which is then just called from the refresh timer.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
2014-12-17 12:44:01 +01:00
Gerd Hoffmann
0d01b7ce61 sdl2: add+use sdl2_2d_redraw function.
Add a new sdl2_2d_redraw function for a complete screen refresh,
so we can stop using graphic_hw_invalidate for that.  There is
no need to bother console / gfx emulation code if we are just
going to re-blit the screen after window resizes.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
2014-12-17 12:44:01 +01:00
Gerd Hoffmann
2c3056f182 sdl2: move sdl_switch to sdl2-2d.c
Move sdl_switch to sdl2-2d.c file, rename to sdl2_2d_switch.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
2014-12-17 12:44:01 +01:00
Gerd Hoffmann
f1ddebd865 sdl2: move sdl_update to new sdl2-2d.c
Create new sdl2-2d file for 2d display rendering.
Move over sdl_update code, and rename to sdl2_2d_update.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
2014-12-17 12:44:01 +01:00
Gerd Hoffmann
8fc1a3f58f sdl2: move keyboard input code to new sdl2-input.c
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
2014-12-17 12:43:27 +01:00
Gerd Hoffmann
5d0fe65078 sdl2: rename sdl2_state to sdl2_console, move to header file
Create sdl2.h header file, in preparation for sdl2 code splitup.
Populate it with sdl2_console struct (renamed from sdl2_state).

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
2014-12-17 12:43:00 +01:00
Max Filippov
246ae24d7d tcg: add separate monitor command to dump opcode counters
Currently 'info jit' outputs half of the information to monitor and the
rest to qemu log. Dumping opcode counts to monitor as a part of 'info
jit' command doesn't sound useful. Add new monitor command 'info
opcount' that only dumps opcode counters.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
2014-12-17 05:49:32 +03:00
Antony Pavlov
339aaf5b7f qemu-log: add log category for MMU info
Running barebox on qemu-system-mips* with '-d unimp' overloads
stderr by very very many mips_cpu_handle_mmu_fault() messages:

  mips_cpu_handle_mmu_fault address=b80003fd ret 0 physical 00000000180003fd prot 3
  mips_cpu_handle_mmu_fault address=a0800884 ret 0 physical 0000000000800884 prot 3
  mips_cpu_handle_mmu_fault pc a080cd80 ad b80003fd rw 0 mmu_idx 0

So it's very difficult to find LOG_UNIMP message.

The mips_cpu_handle_mmu_fault() messages appear on enabling ANY
logging! It's not very handy.

Adding separate log category for *_cpu_handle_mmu_fault()
logging fixes the problem.

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Acked-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Message-id: 1418489298-1184-1-git-send-email-antonynpavlov@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-12-16 18:43:19 +00:00
Peter Maydell
d86fb03469 misc spice updates.
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Merge remote-tracking branch 'remotes/spice/tags/pull-spice-20141216-1' into staging

misc spice updates.

# gpg: Signature made Tue 16 Dec 2014 14:03:07 GMT using RSA key ID D3E87138
# 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>"

* remotes/spice/tags/pull-spice-20141216-1:
  spice: fix memory leak
  spice: remove spice-experimental.h include
  spice: do not require TCP ports
  spice: rework mirror allocation, add no-resize fast path
  spice: reduce refresh rate in native mode
  spice: use bottom half instead of refresh timer for cursor updates

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-12-16 16:52:42 +00:00
Peter Maydell
4db753b1ac Migration pull for 2.3. Mostly moving the code to the migration/
directory, and updating MAINTAINERS.
 
 I've also folded my other MAINTAINERS update patches into this, as
 they're small by themselves.
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Merge remote-tracking branch 'remotes/amit-migration/tags/for-2.3-2' into staging

Migration pull for 2.3.  Mostly moving the code to the migration/
directory, and updating MAINTAINERS.

I've also folded my other MAINTAINERS update patches into this, as
they're small by themselves.

# gpg: Signature made Tue 16 Dec 2014 12:21:24 GMT using RSA key ID 854083B6
# gpg: Good signature from "Amit Shah <amit@amitshah.net>"
# gpg:                 aka "Amit Shah <amit@kernel.org>"
# gpg:                 aka "Amit Shah <amitshah@gmx.net>"

* remotes/amit-migration/tags/for-2.3-2:
  MAINTAINERS: Update for migrated migration code
  Split the QEMU buffered file code out
  Split struct QEMUFile out
  Remove migration- pre/post fixes off files in migration/ dir
  Start migrating migration code into a migration directory
  qmp-command.hx: add missing docs for migration capabilites
  cpu: verify that block->host is set
  cpu: assert host pointer offset within block
  exec: add wrapper for host pointer access
  MAINTAINERS: add include files to virtio-serial entry
  MAINTAINERS: add entry for virtio-rng
  MAINTAINERS: migration: add vmstate static checker files
  MAINTAINERS: Add myself to migration maintainers

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-12-16 14:53:23 +00:00
Gerd Hoffmann
0b2824e5e4 spice: use bottom half instead of refresh timer for cursor updates
Calling directly doesn't work due to the qxl-render code running in
spice server thread context.  Meanwhile bottom half scheduling is
thread-safe though, so we can use that to kick a cursor update in
main i/o thread context.

Cc: Marc-André Lureau <marcandre.lureau@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2014-12-16 14:15:29 +01:00
Michael S. Tsirkin
b78accf614 cpu: verify that block->host is set
If it isn't, access at an offset will cause memory corruption.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Amos Kong <akong@redhat.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
2014-12-16 17:47:35 +05:30
Michael S. Tsirkin
fd5f3b6367 cpu: assert host pointer offset within block
Make accesses safer in case we missed some
check somewhere.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Amos Kong <akong@redhat.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
2014-12-16 17:47:35 +05:30
Michael S. Tsirkin
1240be2435 exec: add wrapper for host pointer access
host pointer accesses force pointer math, let's
add a wrapper to make them safer.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Amos Kong <akong@redhat.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
2014-12-16 17:47:35 +05:30
Peter Maydell
dfa9c2a0f4 - Migration and linuxboot fixes for 2.2 regressions
- valgrind/KVM support
 - small i386 patches
 - PCI SD host controller support
 - malloc/free cleanups from Markus (x86/scsi)
 - IvyBridge model
 - XSAVES support for KVM
 - initial patches from record/replay
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Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

- Migration and linuxboot fixes for 2.2 regressions
- valgrind/KVM support
- small i386 patches
- PCI SD host controller support
- malloc/free cleanups from Markus (x86/scsi)
- IvyBridge model
- XSAVES support for KVM
- initial patches from record/replay

# gpg: Signature made Mon 15 Dec 2014 16:35:08 GMT using RSA key ID 78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>"
# gpg:                 aka "Paolo Bonzini <pbonzini@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: 46F5 9FBD 57D6 12E7 BFD4  E2F7 7E15 100C CD36 69B1
#      Subkey fingerprint: F133 3857 4B66 2389 866C  7682 BFFB D25F 78C7 AE83

* remotes/bonzini/tags/for-upstream: (47 commits)
  sdhci: Support SDHCI devices on PCI
  sdhci: Define SDHCI PCI ids
  sdhci: Add "sysbus" to sdhci QOM types and methods
  sdhci: Remove class "virtual" methods
  sdhci: Set a default frequency clock
  serial: only resample THR interrupt on rising edge of IER.THRI
  serial: update LSR on enabling/disabling FIFOs
  serial: clean up THRE/TEMT handling
  serial: reset thri_pending on IER writes with THRI=0
  linuxboot: fix loading old kernels
  kvm/apic: fix 2.2->2.1 migration
  target-i386: add Ivy Bridge CPU model
  target-i386: add f16c and rdrand to Haswell and Broadwell
  target-i386: add VME to all CPUs
  pc: add 2.3 machine types
  i386: do not cross the pages boundaries in replay mode
  cpus: make icount warp behave well with respect to stop/cont
  timer: introduce new QEMU_CLOCK_VIRTUAL_RT clock
  cpu-exec: invalidate nocache translation if they are interrupted
  icount: introduce cpu_get_icount_raw
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-12-15 16:43:42 +00:00
Kevin O'Connor
ece5e5bfa1 sdhci: Define SDHCI PCI ids
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-12-15 17:34:44 +01:00
Paolo Bonzini
575a6f4082 kvm/apic: fix 2.2->2.1 migration
The wait_for_sipi field is set back to 1 after an INIT, so it was not
effective to reset it in kvm_apic_realize.  Introduce a reset callback
and reset wait_for_sipi there.

Reported-by: Igor Mammedov <imammedo@redhat.com>
Cc: qemu-stable@nongnu.org
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-12-15 12:21:02 +01:00
Pavel Dovgalyuk
bf2a7ddb0a cpus: make icount warp behave well with respect to stop/cont
This patch makes icount warp use the new QEMU_CLOCK_VIRTUAL_RT clock.
This way, icount's QEMU_CLOCK_VIRTUAL will never count time during which
the virtual machine is stopped.

Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-12-15 12:21:02 +01:00
Pavel Dovgalyuk
4e7fa73ec2 timer: introduce new QEMU_CLOCK_VIRTUAL_RT clock
This patch introduces new QEMU_CLOCK_VIRTUAL_RT clock, which
should be used for icount warping.  In the next patch, it
will be used to avoid a huge icount warp when a virtual
machine is stopped for a long time.

Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-12-15 12:21:02 +01:00
Pavel Dovgalyuk
d8a499f17e cpu-exec: invalidate nocache translation if they are interrupted
In this case, QEMU might longjmp out of cpu-exec.c and miss the final
cleanup in cpu_exec_nocache.  Do this manually through a new compile
flag.

Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-12-15 12:21:02 +01:00
Pavel Dovgalyuk
2a62914bd8 icount: introduce cpu_get_icount_raw
Separate accessing the instruction counter from the compensation for
speed and halting that are introduced by qemu_icount_bias.  This
introduces new infrastructure used by the record/replay patches.

Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-12-15 12:21:02 +01:00
Eric Auger
f41389ae3c KVM_CAP_IRQFD and KVM_CAP_IRQFD_RESAMPLE checks
Compute kvm_irqfds_allowed by checking the KVM_CAP_IRQFD extension.
Remove direct settings in architecture specific files.

Add a new kvm_resamplefds_allowed variable, initialized by
checking the KVM_CAP_IRQFD_RESAMPLE extension. Add a corresponding
kvm_resamplefds_enabled() function.

A special notice for s390 where KVM_CAP_IRQFD was not immediatly
advirtised when irqfd capability was introduced in the kernel.
KVM_CAP_IRQ_ROUTING was advertised instead.

This was fixed in "KVM: s390: announce irqfd capability",
ebc3226202d5956a5963185222982d435378b899 whereas irqfd support
was brought in 84223598778ba08041f4297fda485df83414d57e,
"KVM: s390: irq routing for adapter interrupts".  Both commits
first appear in 3.15 so there should not be any kernel
version impacted by this QEMU modification.

Signed-off-by: Eric Auger <eric.auger@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-12-15 12:21:01 +01:00
Paolo Bonzini
82595da8de linux-aio: simplify removal of completed iocbs from the list
There is no need to do another O(n) pass on the list; the iocb to
split the list at is already available through the array we passed to
io_submit.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Message-id: 1418305950-30924-6-git-send-email-pbonzini@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-12-12 16:57:55 +00:00
Stefan Hajnoczi
b5cf2c1b08 block: drop unused bdrv_clear_incoming_migration_all() prototype
The bdrv_clear_incoming_migration_all() function has not existed since
commit 7ea2d269cb ("block/migration:
Disable cache invalidate for incoming migration").

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 1418212937-22222-1-git-send-email-stefanha@redhat.com
2014-12-12 16:55:16 +00:00
Fam Zheng
43c5d8f800 block: Don't add trailing space in "Formating..." message
Change the message printing code to output a separator for each option
string before it instead of after, then we don't one more extra ' ' in
the end.

To update qemu-iotests output files, most of the times one would just
copy the *.out.bad to *.out. With this change we will not have the
space disliked by checkpatch.pl.

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-id: 1418110684-19528-3-git-send-email-famz@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-12-12 16:52:33 +00:00
Max Reitz
5c98415b2a vmdk: Fix error for JSON descriptor file names
If vmdk blindly tries to use path_combine() using bs->file->filename as
the base file name, this will result in a bad error message for JSON
file names when calling bdrv_open(). It is better to only try
bs->file->exact_filename; if that is empty, bs->file->filename will be
useless for path_combine() and an error should be emitted (containing
bs->file->filename because desc_file_path (which is
bs->file->exact_filename) is empty).

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Message-id: 1417615043-26174-2-git-send-email-mreitz@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-12-12 13:14:10 +00:00
Peter Maydell
99c9c3cb24 trivial patches for 2014-12-11
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Merge remote-tracking branch 'remotes/mjt/tags/pull-trivial-patches-2014-12-11' into staging

trivial patches for 2014-12-11

# gpg: Signature made Thu 11 Dec 2014 18:13:58 GMT using RSA key ID A4C3D7DB
# gpg: Good signature from "Michael Tokarev <mjt@tls.msk.ru>"
# gpg:                 aka "Michael Tokarev <mjt@corpit.ru>"
# gpg:                 aka "Michael Tokarev <mjt@debian.org>"

* remotes/mjt/tags/pull-trivial-patches-2014-12-11:
  Sort include/qemu/typedefs.h
  hpet: increase spelling precision
  pflash_cfi02.c: associate "cfi.pflash02" to "Storage devices" category
  vt82c686: fix coverity warning about out-of-bounds write
  virtio: remove useless declaration of virtio_net_init()
  qapi-schema: fix typo about change-vnc-password
  fw_cfg: remove superfluous blank line
  get_maintainer.pl: Remove the --git-chief-penguins option
  configure: Replace which(1) with "has"
  util: Use g_new() & friends where that makes obvious sense
  util: Fuse g_malloc(); memset() into g_new0()
  util: Drop superfluous conditionals around g_free()
  Drop superfluous conditionals around g_strdup()
  Drop superfluous conditionals around qemu_opts_del()
  usb: delete redundant brackets in usb_host_handle_control()
  virtio-bus: avoid breaking build when open DEBUG switch
  acpi-build: Make DPRINTF working for acpi-build
  acpi-build: adjust indention 8 -> 4 spaces
  target-s390x: fix possible out of bounds read
  qmp: fix typo in input-send-event examples

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-12-11 18:27:02 +00:00
Dr. David Alan Gilbert
64baadc272 Sort include/qemu/typedefs.h
Mainly to make it less likely to conflict during merges.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-12-11 21:00:30 +03:00
Peter Maydell
b141290478 target-arm queue:
* pass semihosting exit code out to system
  * more TrustZone support code (still not enabled yet)
  * allow user to direct semihosting to gdb or native explicitly
    rather than always auto-guessing the destination
  * fix memory leak in realview_init
  * fix coverity warning in hw/arm/boot
  * get state migration working for AArch64 CPUs
  * check errors in kvm_arm_reset_vcpu
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Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20141211' into staging

target-arm queue:
 * pass semihosting exit code out to system
 * more TrustZone support code (still not enabled yet)
 * allow user to direct semihosting to gdb or native explicitly
   rather than always auto-guessing the destination
 * fix memory leak in realview_init
 * fix coverity warning in hw/arm/boot
 * get state migration working for AArch64 CPUs
 * check errors in kvm_arm_reset_vcpu

# gpg: Signature made Thu 11 Dec 2014 12:16:19 GMT using RSA key ID 14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"

* remotes/pmaydell/tags/pull-target-arm-20141211: (33 commits)
  target-arm: Check error conditions on kvm_arm_reset_vcpu
  target-arm: Support save/load for 64 bit CPUs
  target-arm/kvm: make reg sync code common between kvm32/64
  arm_gic_kvm: Tell kernel about number of IRQs
  hw/arm/boot: fix uninitialized scalar variable warning reported by coverity
  hw/arm/realview.c: Fix memory leak in realview_init()
  target-arm: make MAIR0/1 banked
  target-arm: make c13 cp regs banked (FCSEIDR, ...)
  target-arm: make VBAR banked
  target-arm: make PAR banked
  target-arm: make IFAR/DFAR banked
  target-arm: make DFSR banked
  target-arm: make IFSR banked
  target-arm: make DACR banked
  target-arm: make TTBCR banked
  target-arm: make TTBR0/1 banked
  target-arm: make CSSELR banked
  target-arm: respect SCR.FW, SCR.AW and SCTLR.NMFI
  target-arm: add SCTLR_EL3 and make SCTLR banked
  target-arm: add MVBAR support
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-12-11 16:47:23 +00:00
Liviu Ionescu
a38bb0792c Add the "-semihosting-config" option.
The usual semihosting behaviour is to process the system calls locally and
return; unfortuantelly the initial implementation dinamically changed the
target to GDB during debug sessions, which, for the usual arm-none-eabi-gdb,
is not implemented. The result was that during debug sessions the semihosting
calls were discarded.

This patch adds a configuration variable and an option to set it on the
command line:

    -semihosting-config [enable=on|off,]target=native|gdb|auto

This option enables semihosting and defines where the semihosting calls will
be addressed, to QEMU ('native') or to GDB ('gdb'). The default is auto, which
means 'gdb' during debug sessions and 'native' otherwise.

Signed-off-by: Liviu Ionescu <ilg@livius.net>
Message-id: 1416341957-9796-1-git-send-email-ilg@livius.net
[PMM: moved declaration and definition of semihosting_target to
 gdbstub.h and gdbstub.c to fix build failure on linux-user]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-12-11 12:07:48 +00:00
Max Reitz
5f535a941e block: Make essential BlockDriver objects public
There are some block drivers which are essential to QEMU and may not be
removed: These are raw, file and qcow2 (as the default non-raw format).
Make their BlockDriver objects public so they can be directly referenced
throughout the block layer without needing to call bdrv_find_format()
and having to deal with an error at runtime, while the real problem
occurred during linking (where raw, file or qcow2 were not linked into
qemu).

Cc: qemu-stable@nongnu.org
Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-12-10 10:31:19 +01:00
Kevin Wolf
38f3ef574b raw: Prohibit dangerous writes for probed images
If the user neglects to specify the image format, QEMU probes the
image to guess it automatically, for convenience.

Relying on format probing is insecure for raw images (CVE-2008-2004).
If the guest writes a suitable header to the device, the next probe
will recognize a format chosen by the guest.  A malicious guest can
abuse this to gain access to host files, e.g. by crafting a QCOW2
header with backing file /etc/shadow.

Commit 1e72d3b (April 2008) provided -drive parameter format to let
users disable probing.  Commit f965509 (March 2009) extended QCOW2 to
optionally store the backing file format, to let users disable backing
file probing.  QED has had a flag to suppress probing since the
beginning (2010), set whenever a raw backing file is assigned.

All of these additions that allow to avoid format probing have to be
specified explicitly. The default still allows the attack.

In order to fix this, commit 79368c8 (July 2010) put probed raw images
in a restricted mode, in which they wouldn't be able to overwrite the
first few bytes of the image so that they would identify as a different
image. If a write to the first sector would write one of the signatures
of another driver, qemu would instead zero out the first four bytes.
This patch was later reverted in commit 8b33d9e (September 2010) because
it didn't get the handling of unaligned qiov members right.

Today's block layer that is based on coroutines and has qiov utility
functions makes it much easier to get this functionality right, so this
patch implements it.

The other differences of this patch to the old one are that it doesn't
silently write something different than the guest requested by zeroing
out some bytes (it fails the request instead) and that it doesn't
maintain a list of signatures in the raw driver (it calls the usual
probe function instead).

Note that this change doesn't introduce new breakage for false positive
cases where the guest legitimately writes data into the first sector
that matches the signatures of an image format (e.g. for nested virt):
These cases were broken before, only the failure mode changes from
corruption after the next restart (when the wrong format is probed) to
failing the problematic write request.

Also note that like in the original patch, the restrictions only apply
if the image format has been guessed by probing. Explicitly specifying a
format allows guests to write anything they like.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1416497234-29880-8-git-send-email-kwolf@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-12-10 10:31:13 +01:00
Kevin Wolf
7cddd3728e block: Read only one sector for format probing
The only image format driver that even potentially accesses anything
after 512 bytes in its bdrv_probe() implementation is VMDK, which reads
a plain-text descriptor file. In practice, the field it's looking for
seems to come first and will be well within the first 512 bytes, too.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 1416497234-29880-7-git-send-email-kwolf@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-12-10 10:31:12 +01:00
Max Reitz
e140177d9c nbd: Change external interface to BlockBackend
Substitute BlockDriverState by BlockBackend in every globally visible
function provided by nbd.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1416309679-333-5-git-send-email-mreitz@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-12-10 10:31:12 +01:00
Max Reitz
2c28b21f7c block: Add blk_add_close_notifier() for BB
Adding something like a "delete notifier" to a BlockBackend would not
make much sense, because whoever is interested in registering there will
probably hold a reference to that BlockBackend; therefore, the notifier
will never be called (or only when the notifiee already relinquished its
reference and thus most probably is no longer interested in that
notification).

Therefore, this patch just passes through the close notifier interface
of the root BDS. This will be called when the device is ejected, for
instance, and therefore does make sense.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1416309679-333-4-git-send-email-mreitz@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-12-10 10:31:12 +01:00
Max Reitz
2019ba0a01 block: Add AioContextNotifier functions to BB
Because all BlockDriverStates behind a single BlockBackend reside in a
single AioContext, it is fine to just pass these functions
(blk_add_aio_context_notifier() and blk_remove_aio_context_notifier())
through to the root BlockDriverState.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1416309679-333-3-git-send-email-mreitz@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-12-10 10:31:12 +01:00
Max Reitz
2bb0dce762 block: Lift more functions into BlockBackend
There are already some blk_aio_* functions, so we might as well have
blk_co_* functions (as far as we need them). This patch adds
blk_co_flush(), blk_co_discard(), and also blk_invalidate_cache() (which
is not a blk_co_* function but is needed nonetheless).

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1416309679-333-2-git-send-email-mreitz@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-12-10 10:31:12 +01:00
Fam Zheng
20a9e77dfa block: Add bdrv_get_node_name
This returns the node name of a BDS. Remove the TODO comment and expect
the callers to be explicit.

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-12-10 10:25:29 +01:00
Fam Zheng
04df765ab4 block: Add bdrv_next_node
Similar to bdrv_next, this traverses through graph_bdrv_states. Will be
useful to enumerate all the named nodes.

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-12-10 10:25:29 +01:00
Gonglei
7766aa0c0e virtio: remove useless declaration of virtio_net_init()
commit 1773d9ee (virtio-net: cleanup: init and exit function)
removed the definition of virtio_net_init(), but didn't remove its
declaration in the header.  Clean that up.

Cc: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-12-10 11:52:21 +03:00
Marcel Apfelbaum
4cae4d5aca hmp: fix regression of HMP device_del auto-completion
The commits:
 - 6a1fa9f5 (monitor: add del completion for peripheral device)
 - 66e56b13 (qdev: add qdev_build_hotpluggable_device_list helper)

cause a QEMU crash when trying to use HMP device_del auto-completion.
It can be easily reproduced by:
    <qemu-bin> -enable-kvm  ~/images/fedora.qcow2 -monitor stdio -device virtio-net-pci,id=vnet

    (qemu) device_del
    /home/mapfelba/git/upstream/qemu/hw/core/qdev.c:941:qdev_build_hotpluggable_device_list: Object 0x7f6ce04e4fe0 is not an instance of type device
    Aborted (core dumped)

The root cause is qdev_build_hotpluggable_device_list going recursively over
all peripherals and their children assuming all are devices. It doesn't work
since PCI devices have at least on child which is a memory region (bus master).

Solved by observing that all devices appear as direct children of
/machine/peripheral container. No need of going recursively
over all the children.

Signed-off-by: Marcel Apfelbaum <marcel.a@redhat.com>
Reported-by: Gal Hammer <ghammer@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-id: 1417002601-20799-1-git-send-email-marcel.a@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-11-27 14:36:20 +00:00
Don Slutz
d1048bef9d -machine vmport=auto: Fix handling of VMWare ioport emulation for xen
c/s 9b23cfb76b

or

c/s b154537ad0

moved the testing of xen_enabled() from pc_init1() to
pc_machine_initfn().

xen_enabled() does not return the correct value in
pc_machine_initfn().

Changed vmport from a bool to an enum.  Added the value "auto" to do
the old way.  Move check of xen_enabled() back to pc_init1().

Acked-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Don Slutz <dslutz@verizon.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-11-26 12:11:27 +01:00
Michael S. Tsirkin
ad5b88b1f1 acpi-build: mark RAM dirty on table update
acpi build modifies internal FW CFG RAM on first access
but we forgot to mark it dirty.
If this RAM has been migrated already, it won't be
migrated again, returning corrupted tables to guest.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-11-24 20:57:10 +02:00
Igor Mammedov
91aa70ab2a pc: align DIMM's address/size by backend's alignment value
Performance wise it's better to align GVA by the backend's
page size.

Also do not allow to create DIMM device with suboptimal
size (i.e. not aligned to backends page size) to aviod
memory loss.

Do above only for 2.2 and newer machine types to avoid
breaking working configs with 2.1 machine type.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-11-23 12:12:39 +02:00
Igor Mammedov
a2b257d621 memory: expose alignment used for allocating RAM as MemoryRegion API
introduce memory_region_get_alignment() that returns
underlying memory block alignment or 0 if it's not
relevant/implemented for backend.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-11-23 12:11:30 +02:00