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7 years agoqcow2: fix encryption during cow of sectors
Daniel P. Berrange [Tue, 6 Sep 2016 14:26:37 +0000 (15:26 +0100)]
qcow2: fix encryption during cow of sectors

Broken in previous commit:

  commit aaa4d20b4972bb1a811ce929502e6741835d584e
  Author: Kevin Wolf <kwolf@redhat.com>
  Date:   Wed Jun 1 15:21:05 2016 +0200

      qcow2: Make copy_sectors() byte based

The copy_sectors() code was originally using the 'sector'
parameter for encryption, which was passed in by the caller
from the QCowL2Meta.offset field (aka the guest logical
offset).

After the change, the code is using 'cluster_offset' which
was passed in from QCow2L2Meta.alloc_offset field (aka the
host physical offset).

This would cause the data to be encrypted using an incorrect
initialization vector which will in turn cause later reads
to return garbage.

Although current qcow2 built-in encryption is blocked from
usage in the emulator, one could still hit this if writing
to the file via qemu-{img,io,nbd} commands.

Cc: qemu-stable@nongnu.org
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
7 years agoMerge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20160922' into...
Peter Maydell [Thu, 22 Sep 2016 17:23:14 +0000 (18:23 +0100)]
Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20160922' into staging

target-arm queue:
 * add Cortex-A7 CPU
 * new ast2500 SoC model and evaluation board
 * palmetto-bmc: remove stray double assignment
 * aspeed: clean up RAM size handling
 * ptimer: framework for defining policy bits to change
   behaviour choices for different timer devices
 * ptimer: add some test cases
 * cadence_gem: add queue support
 * loader: support loading images to specified address spaces
 * loader: support auto-detect of ELF architecture from file
 * dma: xlnx-zynq-devcfg: Fix up XLNX_ZYNQ_DEVCFG_R_MAX
 * vmstateify ssd0323
 * vmstateify ssi-sd
 * disas/arm.c: remove unused macros
 * imx: use 'const char', not 'char const'

# gpg: Signature made Thu 22 Sep 2016 18:20:22 BST
# gpg:                using RSA key 0x3C2525ED14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>"
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>"
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83  15CF 3C25 25ED 1436 0CDE

* remotes/pmaydell/tags/pull-target-arm-20160922: (36 commits)
  imx: Use 'const char', not 'char const'
  disas/arm.c: Remove unused macro definitions
  vmstateify ssi-sd
  vmstateify ssd0323 display
  dma: xlnx-zynq-devcfg: Fix up XLNX_ZYNQ_DEVCFG_R_MAX
  loader: Add AddressSpace loading support to targphys
  loader: Add AddressSpace loading support to uImages
  loader: Add AddressSpace loading support to ELFs
  loader: Allow a custom AddressSpace when loading ROMs
  loader: Use the specified MemoryRegion
  loader: Allow ELF loader to auto-detect the ELF arch
  xlnx-zynqmp: Set the number of priority queues
  cadence_gem: Correct indentation
  cadence_gem: Add queue support
  cadence_gem: Add support for screening
  cadence_gem: Add the num-priority-queues property
  cadence_gem: QOMify Cadence GEM
  tests: Add ptimer tests
  hw/ptimer: Suppress error messages under qtest
  hw/ptimer: Introduce timer policy feature
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7 years agoimx: Use 'const char', not 'char const'
Peter Maydell [Thu, 22 Sep 2016 17:13:09 +0000 (18:13 +0100)]
imx: Use 'const char', not 'char const'

'char const' means the same thing as 'const char', but we
use the former in only a handful of places and we use the
latter over six thousand times. Switch the imx reg_name()
functions to bring them in line with everything else.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7 years agodisas/arm.c: Remove unused macro definitions
Peter Maydell [Thu, 22 Sep 2016 17:13:09 +0000 (18:13 +0100)]
disas/arm.c: Remove unused macro definitions

The macros ISSPACE, strneq, NUM_ELEMS and NUM_ARM_REGNAMES
are defined in disas/arm.c but never used. Remove the
unnecessary definitions.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7 years agovmstateify ssi-sd
Dr. David Alan Gilbert [Thu, 22 Sep 2016 17:13:08 +0000 (18:13 +0100)]
vmstateify ssi-sd

Changed a few types to fixed sized types in the ssi_sd_state
Now saving/loading a byte for the cmdarg/response bytes that were
  previously saved as uint32
Bumped version number to deal with those changes.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-id: 1472035246-12483-4-git-send-email-dgilbert@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7 years agovmstateify ssd0323 display
Dr. David Alan Gilbert [Thu, 22 Sep 2016 17:13:08 +0000 (18:13 +0100)]
vmstateify ssd0323 display

   Bumps version number because we now use the VMSTATE_SSI_SLAVE that
only uses a byte rather than a 32bit (for saving a bool 'cs').

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-id: 1472035246-12483-2-git-send-email-dgilbert@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7 years agodma: xlnx-zynq-devcfg: Fix up XLNX_ZYNQ_DEVCFG_R_MAX
Nathan Rossi [Thu, 22 Sep 2016 17:13:08 +0000 (18:13 +0100)]
dma: xlnx-zynq-devcfg: Fix up XLNX_ZYNQ_DEVCFG_R_MAX

Whilst according to the Zynq TRM this device covers a register region of
0x000 - 0x120. The register region is also shared with XADCIF prefix
registers at 0x100 and above. Due to how the devcfg and the xadc devices
are implemented in QEMU these are separate models with individual mmio
regions. As such the region registered by the devcfg overlaps with the
xadc when initialized in a machine model (e.g. xilinx-zynq-a9).

This patch fixes up the incorrect region size, where
XLNX_ZYNQ_DEVCFG_R_MAX is missing its '/ 4' causing it to be 0x460 in
size. As well as setting the region size to the 0x0 - 0x100 region so
that an xadc device instance can be registered in the correct region to
pair with the devcfg device instance.

Mapping with XLNX_ZYNQ_DEVCFG_R_MAX = 0x118:
  dev: xlnx.ps7-dev-cfg, id ""
    mmio 00000000f8007000/0000000000000460
  dev: xlnx,zynq-xadc, id ""
    mmio 00000000f8007100/0000000000000020

Mapping with XLNX_ZYNQ_DEVCFG_R_MAX = 0x100 / 4:
  dev: xlnx.ps7-dev-cfg, id ""
    mmio 00000000f8007000/0000000000000100
  dev: xlnx,zynq-xadc, id ""
    mmio 00000000f8007100/0000000000000020

Signed-off-by: Nathan Rossi <nathan@nathanrossi.com>
Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>
Message-id: 20160921180911.32289-1-nathan@nathanrossi.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7 years agoloader: Add AddressSpace loading support to targphys
Alistair Francis [Thu, 22 Sep 2016 17:13:08 +0000 (18:13 +0100)]
loader: Add AddressSpace loading support to targphys

Add a new function load_image_targphys_as() that allows the caller
to specify an AddressSpace to use when loading a targphys. The
original load_image_targphys() function doesn't have any change in
functionality.

Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 87de45de7acf02cbe6bae9d6c4d6fb8f3aba4f61.1474331683.git.alistair.francis@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7 years agoloader: Add AddressSpace loading support to uImages
Alistair Francis [Thu, 22 Sep 2016 17:13:08 +0000 (18:13 +0100)]
loader: Add AddressSpace loading support to uImages

Add a new function load_uimage_as() that allows the caller to
specify an AddressSpace to use when loading the uImage. The
original load_uimage() function doesn't have any change in
functionality.

Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1254092e6b80d3cd3cfabafe165d56a96c54c0b5.1474331683.git.alistair.francis@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7 years agoloader: Add AddressSpace loading support to ELFs
Alistair Francis [Thu, 22 Sep 2016 17:13:08 +0000 (18:13 +0100)]
loader: Add AddressSpace loading support to ELFs

Add a new function load_elf_as() that allows the caller to specify an
AddressSpace to use when loading the ELF. The original load_elf()
function doesn't have any change in functionality.

Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 8b5cefecdf56fba4ccdff2db880f0b6b264cf16f.1474331683.git.alistair.francis@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7 years agoloader: Allow a custom AddressSpace when loading ROMs
Alistair Francis [Thu, 22 Sep 2016 17:13:08 +0000 (18:13 +0100)]
loader: Allow a custom AddressSpace when loading ROMs

When loading ROMs allow the caller to specify an AddressSpace to use for
the load.

Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Message-id: 85f86b94ea94879e7ce8b12e85ac8de26658f7eb.1474331683.git.alistair.francis@xilinx.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7 years agoloader: Use the specified MemoryRegion
Alistair Francis [Thu, 22 Sep 2016 17:13:08 +0000 (18:13 +0100)]
loader: Use the specified MemoryRegion

Prevously the specified MemoryRegion was ignored during the rom register
reset. This patch uses the rom MemoryRegion is avaliable.

Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: d63fef5524deeb88e0068ca9d3fd4c8344f54dd4.1474331683.git.alistair.francis@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7 years agoloader: Allow ELF loader to auto-detect the ELF arch
Alistair Francis [Thu, 22 Sep 2016 17:13:07 +0000 (18:13 +0100)]
loader: Allow ELF loader to auto-detect the ELF arch

If the caller didn't specify an architecture for the ELF machine
the load_elf() function will auto detect it based on the ELF file.

Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: f2d70b47fcad31445f947f8817a0e146d80a046b.1474331683.git.alistair.francis@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7 years agoxlnx-zynqmp: Set the number of priority queues
Alistair Francis [Thu, 22 Sep 2016 17:13:07 +0000 (18:13 +0100)]
xlnx-zynqmp: Set the number of priority queues

Set the ZynqMP number of priority queues to 2.

Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: e047c338ee981a61afd7f765a317b3de25a4f629.1469727764.git.alistair.francis@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7 years agocadence_gem: Correct indentation
Alistair Francis [Thu, 22 Sep 2016 17:13:07 +0000 (18:13 +0100)]
cadence_gem: Correct indentation

Fix up the indentation inside the for loop that was introduced in the previous
patch. This commit is almost empty if viewed using 'git show -w', except for a
few changes that were required to avoid the 80 charecter line limit.

Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: b40d1b12d24be9f0ac5d72f86249103e0c1c720a.1469727764.git.alistair.francis@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7 years agocadence_gem: Add queue support
Alistair Francis [Thu, 22 Sep 2016 17:13:07 +0000 (18:13 +0100)]
cadence_gem: Add queue support

Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 28921252217b1d14f16889bafa88675f5b7a66cb.1469727764.git.alistair.francis@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7 years agocadence_gem: Add support for screening
Alistair Francis [Thu, 22 Sep 2016 17:13:07 +0000 (18:13 +0100)]
cadence_gem: Add support for screening

The Cadence GEM hardware allows incoming data to be 'screened' based on some
register values. Add support for these screens.

We also need to increase the max regs to avoid compilation failures. These new
registers are implemented in the next patch.

Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 73e69a8ad9fa2763e9f68f71eaf2469dd5744fcc.1469727764.git.alistair.francis@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7 years agocadence_gem: Add the num-priority-queues property
Alistair Francis [Thu, 22 Sep 2016 17:13:07 +0000 (18:13 +0100)]
cadence_gem: Add the num-priority-queues property

The Cadence GEM hardware supports N number priority queues, this patch is a
step towards that by adding the property to set the queues. At the moment
behaviour doesn't change as we only use queue 0.

Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 6543ec0d0c4bfd2678d0ed683efb197e91b17733.1469727764.git.alistair.francis@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7 years agocadence_gem: QOMify Cadence GEM
Alistair Francis [Thu, 22 Sep 2016 17:13:07 +0000 (18:13 +0100)]
cadence_gem: QOMify Cadence GEM

The sysbus_init_irq() call will eventually depend on a property so it needs to
be in the realize function.

Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 486595809cf416d18a750aafbcfa1c81d7160c59.1469727764.git.alistair.francis@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7 years agotests: Add ptimer tests
Dmitry Osipenko [Thu, 22 Sep 2016 17:13:07 +0000 (18:13 +0100)]
tests: Add ptimer tests

Ptimer is a generic countdown timer helper that is used by many timer
device models as well as by the QEMU core. Add QTests for the ptimer.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Message-id: 1de89fe6e1ccaf6c8071ee3469e1a844df948359.1473252818.git.digetx@gmail.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7 years agohw/ptimer: Suppress error messages under qtest
Dmitry Osipenko [Thu, 22 Sep 2016 17:13:07 +0000 (18:13 +0100)]
hw/ptimer: Suppress error messages under qtest

Under qtest ptimer emits lots of warning messages. The messages are caused
by the actual checking of the ptimer error conditions. Suppress those
messages, so they do not distract.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Message-id: 44877fff4ff03205590698d3dc189ad6d091472f.1473252818.git.digetx@gmail.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7 years agohw/ptimer: Introduce timer policy feature
Dmitry Osipenko [Thu, 22 Sep 2016 17:13:06 +0000 (18:13 +0100)]
hw/ptimer: Introduce timer policy feature

Some of the timer devices may behave differently from what ptimer
provides. Introduce ptimer policy feature that allows ptimer users to
change default and wrong timer behaviour, for example to continuously
trigger periodic timer when load value is equal to "0".

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Message-id: 994cd608ec392da6e58f0643800dda595edb9d97.1473252818.git.digetx@gmail.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7 years agohw/ptimer: Actually stop the timer in case of error
Dmitry Osipenko [Thu, 22 Sep 2016 17:13:06 +0000 (18:13 +0100)]
hw/ptimer: Actually stop the timer in case of error

Running with counter / period = 0 is treated as a error case, printing error
message claiming that timer has been disabled. However, timer is only marked
as disabled, keeping to tick till expired and triggering after being claimed
as disabled. Stop the QEMU timer to avoid confusion.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Message-id: 1e9bae4fae3c36430d7c28b0f486a0c71aff7eb3.1473252818.git.digetx@gmail.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7 years agoaspeed: allocate RAM after the memory controller has checked the size
Cédric Le Goater [Thu, 22 Sep 2016 17:13:06 +0000 (18:13 +0100)]
aspeed: allocate RAM after the memory controller has checked the size

If the RAM size is invalid, the memory controller will use a default
value.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Message-id: 1473438177-26079-15-git-send-email-clg@kaod.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7 years agoaspeed: add a ram_size property to the memory controller
Cédric Le Goater [Thu, 22 Sep 2016 17:13:06 +0000 (18:13 +0100)]
aspeed: add a ram_size property to the memory controller

Configure the size of the RAM of the SOC using a property to propagate
the value down to the memory controller from the board level.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Message-id: 1473438177-26079-14-git-send-email-clg@kaod.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7 years agoaspeed: use error_report instead of LOG_GUEST_ERROR
Cédric Le Goater [Thu, 22 Sep 2016 17:13:06 +0000 (18:13 +0100)]
aspeed: use error_report instead of LOG_GUEST_ERROR

Also change the default value used in case of an error. The minimum
size is a bit severe, so let's just use an average RAM size.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-id: 1473438177-26079-13-git-send-email-clg@kaod.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7 years agoaspeed: calculate the RAM size bits at realize time
Cédric Le Goater [Thu, 22 Sep 2016 17:13:06 +0000 (18:13 +0100)]
aspeed: calculate the RAM size bits at realize time

There is no need to do this at each reset as the RAM size will not
change.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Message-id: 1473438177-26079-12-git-send-email-clg@kaod.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7 years agopalmetto-bmc: remove extra no_sdcard assignement
Cédric Le Goater [Thu, 22 Sep 2016 17:13:06 +0000 (18:13 +0100)]
palmetto-bmc: remove extra no_sdcard assignement

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1473438177-26079-11-git-send-email-clg@kaod.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7 years agoarm: add support for an ast2500 evaluation board
Cédric Le Goater [Thu, 22 Sep 2016 17:13:06 +0000 (18:13 +0100)]
arm: add support for an ast2500 evaluation board

The ast2500 eval board has a hardware strapping register value of
0xF100C2E6 which we use for a definition of AST2500_EVB_HW_STRAP1
below.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1473438177-26079-10-git-send-email-clg@kaod.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7 years agoaspeed: add a ast2500 SoC and support to the SCU and SDMC controllers
Cédric Le Goater [Thu, 22 Sep 2016 17:13:05 +0000 (18:13 +0100)]
aspeed: add a ast2500 SoC and support to the SCU and SDMC controllers

Based on previous work done by Andrew Jeffery <andrew@aj.id.au>.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1473438177-26079-9-git-send-email-clg@kaod.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7 years agohw/misc: use macros to define hw-strap1 register on the AST2400 Aspeed SoC
Cédric Le Goater [Thu, 22 Sep 2016 17:13:05 +0000 (18:13 +0100)]
hw/misc: use macros to define hw-strap1 register on the AST2400 Aspeed SoC

This gives some explanation behind the magic number 0x120CE416.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1473438177-26079-8-git-send-email-clg@kaod.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7 years agopalmetto-bmc: add board specific configuration
Cédric Le Goater [Thu, 22 Sep 2016 17:13:05 +0000 (18:13 +0100)]
palmetto-bmc: add board specific configuration

aspeed_board_init() now uses a board identifier to customize some values
specific to the board.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1473438177-26079-7-git-send-email-clg@kaod.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7 years agopalmetto-bmc: replace palmetto_bmc with aspeed
Cédric Le Goater [Thu, 22 Sep 2016 17:13:05 +0000 (18:13 +0100)]
palmetto-bmc: replace palmetto_bmc with aspeed

This is mostly a name replacement to prepare ground for other SoCs
specificities. It also adds a TypeInfo struct for the palmetto-bmc
board with a custom initialization for the same reason.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1473438177-26079-6-git-send-email-clg@kaod.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7 years agopalmetto-bmc: rename the Aspeed board file to aspeed.c
Cédric Le Goater [Thu, 22 Sep 2016 17:13:05 +0000 (18:13 +0100)]
palmetto-bmc: rename the Aspeed board file to aspeed.c

We plan to add more Aspeed boards to this file. There are no changes
in the code.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1473438177-26079-5-git-send-email-clg@kaod.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7 years agoaspeed-soc: provide a framework to add new SoCs
Cédric Le Goater [Thu, 22 Sep 2016 17:13:05 +0000 (18:13 +0100)]
aspeed-soc: provide a framework to add new SoCs

Let's define an object class for each Aspeed SoC we support. A
AspeedSoCInfo struct gathers the SoC specifications which can later be
used by an instance of the class or by a board using the SoC.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Message-id: 1473438177-26079-4-git-send-email-clg@kaod.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7 years agoast2400: replace ast2400 with aspeed_soc
Cédric Le Goater [Thu, 22 Sep 2016 17:13:05 +0000 (18:13 +0100)]
ast2400: replace ast2400 with aspeed_soc

This is a name replacement to prepare ground for other SoCs.

Let's also remove the AST2400_SMC_BASE definition from the address
space mappings, as it is not used. This controller was removed from
the Aspeed SoC AST2500, so this provides us a better common base for
the address space mapping on both SoCs.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1473438177-26079-3-git-send-email-clg@kaod.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7 years agoast2400: rename the Aspeed SoC files to aspeed_soc
Cédric Le Goater [Thu, 22 Sep 2016 17:13:05 +0000 (18:13 +0100)]
ast2400: rename the Aspeed SoC files to aspeed_soc

Let's prepare for new Aspeed SoCs and rename the ast2400 file to a
more generic one. There are no changes in the code apart from the
header file include.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1473438177-26079-2-git-send-email-clg@kaod.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7 years agoarm: add Cortex A7 CPU parameters
Andrey Yurovsky [Thu, 22 Sep 2016 17:13:05 +0000 (18:13 +0100)]
arm: add Cortex A7 CPU parameters

Add the "cortex-a7" CPU with features and registers matching the Cortex-A7
MPCore Technical Reference Manual and the Cortex-A7 Floating-Point Unit
Technical Reference Manual. The A7 is very similar to the A15.

Signed-off-by: Andrey Yurovsky <yurovsky@gmail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1473185229-4597-1-git-send-email-yurovsky@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7 years agoMerge remote-tracking branch 'remotes/riku/tags/pull-linux-user-20160915' into staging
Peter Maydell [Thu, 22 Sep 2016 14:39:54 +0000 (15:39 +0100)]
Merge remote-tracking branch 'remotes/riku/tags/pull-linux-user-20160915' into staging

linux-user changes since 2.7 release

# gpg: Signature made Thu 22 Sep 2016 13:09:17 BST
# gpg:                using RSA key 0xB44890DEDE3C9BC0
# gpg: Good signature from "Riku Voipio <riku.voipio@iki.fi>"
# gpg:                 aka "Riku Voipio <riku.voipio@linaro.org>"
# Primary key fingerprint: FF82 03C8 C391 98AE 0581  41EF B448 90DE DE3C 9BC0

* remotes/riku/tags/pull-linux-user-20160915: (26 commits)
  linux-user: fix TARGET_NR_select
  linux-user: Fix incorrect offset of tuc_stack in ARM do_sigframe_return_v2
  linux-user: Sanity check clone flags
  linux-user: Remove unnecessary nptl_flags variable from do_fork()
  linux-user: Implement force_sigsegv() via force_sig()
  linux-user: SIGSEGV from sigreturn need not be fatal
  linux-user: ARM: Give SIGSEGV if signal frame setup fails
  linux-user: SIGSEGV on signal entry need not be fatal
  linux-user: Pass si_type information to queue_signal() explicitly
  linux-user: Recheck for pending synchronous signals too
  linux-user: ppc64: set MSR_CM bit for BookE 2.06 MMU
  linux-user: Use correct target SHMLBA in shmat()
  linux-user: Use glib malloc functions in load_symbols()
  linux-user: Check dump_write() return in elf_core_dump()
  linux-user: Fix error handling in flatload.c target_pread()
  linux-user: Fix incorrect use of host errno in do_ioctl_dm()
  linux-user: Check lock_user() return value for NULL
  linux-user: Pass missing MAP_ANONYMOUS to target_mmap() call
  linux-user: report signals being taken in strace output
  linux-user: Range check the nfds argument to ppoll syscall
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7 years agoMerge remote-tracking branch 'remotes/otubo/tags/pull-seccomp-20160921' into staging
Peter Maydell [Thu, 22 Sep 2016 12:18:29 +0000 (13:18 +0100)]
Merge remote-tracking branch 'remotes/otubo/tags/pull-seccomp-20160921' into staging

seccomp branch queue

# gpg: Signature made Wed 21 Sep 2016 10:30:09 BST
# gpg:                using RSA key 0xFD0CFF5B12F8BD2F
# gpg: Good signature from "Eduardo Otubo (Software Engineer @ ProfitBricks) <eduardo.otubo@profitbricks.com>"
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 1C96 46B6 E1D1 C38A F2EC  3FDE FD0C FF5B 12F8 BD2F

* remotes/otubo/tags/pull-seccomp-20160921:
  seccomp: adding getrusage to the whitelist

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7 years agoMerge remote-tracking branch 'remotes/maxreitz/tags/pull-block-2016-09-20' into staging
Peter Maydell [Thu, 22 Sep 2016 11:16:51 +0000 (12:16 +0100)]
Merge remote-tracking branch 'remotes/maxreitz/tags/pull-block-2016-09-20' into staging

Block patches for 2.8

# gpg: Signature made Tue 20 Sep 2016 21:29:53 BST
# gpg:                using RSA key 0xF407DB0061D5CF40
# 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-2016-09-20:
  iotest 055: refactor and speed up
  commit: get the overlay node before manipulating the backing chain
  blockdev: Modularize nfs block driver
  blockdev: Add dynamic module loading for block drivers
  blockdev: Add dynamic generation of module_block.h
  blockdev: prepare iSCSI block driver for dynamic loading
  qemu-img: add skip option to dd
  qemu-img: add the 'dd' subcommand

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7 years agoMerge remote-tracking branch 'remotes/rth/tags/pull-tcg-20160920' into staging
Peter Maydell [Thu, 22 Sep 2016 09:10:06 +0000 (10:10 +0100)]
Merge remote-tracking branch 'remotes/rth/tags/pull-tcg-20160920' into staging

tcg updates for 20 Sep

# gpg: Signature made Tue 20 Sep 2016 19:48:04 BST
# gpg:                using RSA key 0xAD1270CC4DD0279B
# gpg: Good signature from "Richard Henderson <rth7680@gmail.com>"
# gpg:                 aka "Richard Henderson <rth@redhat.com>"
# gpg:                 aka "Richard Henderson <rth@twiddle.net>"
# Primary key fingerprint: 9CB1 8DDA F8E8 49AD 2AFC  16A4 AD12 70CC 4DD0 279B

* remotes/rth/tags/pull-tcg-20160920:
  tcg/i386: Extend TARGET_PAGE_MASK to the proper type

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7 years agolinux-user: fix TARGET_NR_select
Laurent Vivier [Thu, 7 Jul 2016 23:17:27 +0000 (01:17 +0200)]
linux-user: fix TARGET_NR_select

TARGET_NR_select can have three different implementations:

  1- to always return -ENOSYS

     microblaze, ppc, ppc64

     -> TARGET_WANT_NI_OLD_SELECT

  2- to take parameters from a structure pointed by arg1
    (kernel sys_old_select)

     i386, arm, m68k

     -> TARGET_WANT_OLD_SYS_SELECT

  3- to take parameters from arg[1-5]
     (kernel sys_select)

     x86_64, alpha, s390x,
     cris, sparc, sparc64

Some (new) architectures don't define NR_select,

  4- but only NR__newselect with sys_select:

      mips, mips64, sh

  5- don't define NR__newselect, and use pselect6 syscall:

      aarch64, openrisc, tilegx, unicore32

Reported-by: Timothy Pearson <tpearson@raptorengineering.com>
Reported-by: Allan Wirth <awirth@akamai.com>
Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
7 years agolinux-user: Fix incorrect offset of tuc_stack in ARM do_sigframe_return_v2
Timothy E Baldwin [Fri, 9 Sep 2016 18:35:58 +0000 (19:35 +0100)]
linux-user: Fix incorrect offset of tuc_stack in ARM do_sigframe_return_v2

struct target_ucontext_v2 is not at the begining of the signal frame,
therefore do_sigaltstack was being passed bogus arguments.

As the offset depends on the type of signal frame fixed by passing in the
beginning of the context from do_sigreturn_v2 and do_rt_sigreturn_v2.

Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Timothy Edward Baldwin <T.E.Baldwin99@members.leeds.ac.uk>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
7 years agolinux-user: Sanity check clone flags
Peter Maydell [Tue, 2 Aug 2016 17:41:27 +0000 (18:41 +0100)]
linux-user: Sanity check clone flags

We currently make no checks on the flags passed to the clone syscall,
which means we will not fail clone attempts which ask for features
that we can't implement. Add sanity checking of the flags to clone
(which we were already doing in the "this is a fork" path, but not
for the "this is a new thread" path), tidy up the checking in
the fork path to match it, and check that the fork case isn't trying
to specify a custom termination signal.

This is helpful in causing some LTP test cases to fail cleanly
rather than behaving bizarrely when we let the clone succeed
but didn't provide the semantics requested by the flags.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
7 years agolinux-user: Remove unnecessary nptl_flags variable from do_fork()
Peter Maydell [Tue, 2 Aug 2016 17:41:26 +0000 (18:41 +0100)]
linux-user: Remove unnecessary nptl_flags variable from do_fork()

The 'nptl_flags' variable in do_fork() is set to a copy of
'flags', and then the CLONE_NPTL_FLAGS are cleared out of 'flags'.
However the only effect of this is that the later check on
"if (flags & CLONE_PARENT_SETTID)" is never true. Since we
will already have done the setting of parent_tidptr in clone_func()
in the child thread, we don't need to do it again.

Delete the dead if() and the clearing of CLONE_NPTL_FLAGS from
'flags', and then use 'flags' where we were previously using
'nptl_flags', so we can delete the unnecessary variable.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
7 years agolinux-user: Implement force_sigsegv() via force_sig()
Peter Maydell [Thu, 28 Jul 2016 15:44:50 +0000 (16:44 +0100)]
linux-user: Implement force_sigsegv() via force_sig()

Now that we have a force_sig() with the semantics we need,
we can implement force_sigsegv() to call it rather than
open-coding the call to queue_signal().

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
7 years agolinux-user: SIGSEGV from sigreturn need not be fatal
Peter Maydell [Thu, 28 Jul 2016 15:44:49 +0000 (16:44 +0100)]
linux-user: SIGSEGV from sigreturn need not be fatal

If the sigreturn syscall fails to read memory then this causes a
SIGSEGV, but this is not necessarily a fatal signal -- the guest
process can catch it.

We don't implement this correctly because the behaviour of QEMU's
force_sig() function has drifted away from the kernel function of the
same name -- ours now does "always do a guest core dump and abort
execution", whereas the kernel version simply forces the guest to
take a signal, which may or may not eventually cause a core dump.

Rename our force_sig() to dump_core_and_abort(), and provide a
force_sig() which acts more like the kernel version as the sigreturn
implementations expect it to.  Since force_sig() now returns, we must
update all the callsites to return -TARGET_QEMU_ESIGRETURN so that
the main loop doesn't change the guest registers before the signal
handler is invoked.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
7 years agolinux-user: ARM: Give SIGSEGV if signal frame setup fails
Peter Maydell [Thu, 28 Jul 2016 15:44:48 +0000 (16:44 +0100)]
linux-user: ARM: Give SIGSEGV if signal frame setup fails

The 32-bit ARM signal frame setup code was just bailing out
on error returns from lock_user_struct calls, without
generating the SIGSEGV that should happen here. Wire up
error return codes to call force_sigsegv().

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
7 years agolinux-user: SIGSEGV on signal entry need not be fatal
Peter Maydell [Thu, 28 Jul 2016 15:44:47 +0000 (16:44 +0100)]
linux-user: SIGSEGV on signal entry need not be fatal

A failed write to memory trying to set up the signal frame
should trigger a SIGSEGV, but this need not be fatal: the
guest has a chance to catch it. Implement this via a force_sigsegv()
function with the same behaviour as the kernel function of that
name: make sure that we don't try to re-take a failed SIGSEGV,
and force a synchronous signal.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
7 years agolinux-user: Pass si_type information to queue_signal() explicitly
Peter Maydell [Thu, 28 Jul 2016 15:44:46 +0000 (16:44 +0100)]
linux-user: Pass si_type information to queue_signal() explicitly

Instead of assuming in queue_signal() that all callers are passing
a siginfo structure which uses the _sifields._sigfault part of the
union (and thus a si_type of QEMU_SI_FAULT), make callers pass
the si_type they require in as an argument.

[RV adjusted to apply]
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
7 years agolinux-user: Recheck for pending synchronous signals too
Peter Maydell [Thu, 28 Jul 2016 15:44:45 +0000 (16:44 +0100)]
linux-user: Recheck for pending synchronous signals too

In process_pending_signals() we restart the scan of possible
pending signals after calling handle_pending_signal() in
case some other signal has been generated. This rescan
should also include a check for a new synchronous signal
since those are in fact the only kind of new signal that
the signal frame setup process might produce.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
7 years agolinux-user: ppc64: set MSR_CM bit for BookE 2.06 MMU
Michael Walle [Fri, 22 Jul 2016 15:18:05 +0000 (17:18 +0200)]
linux-user: ppc64: set MSR_CM bit for BookE 2.06 MMU

64 bit user mode doesn't work for the e5500 core because the MSR_CM bit is
not set which enables the 64 bit mode for this MMU model. Memory addresses
are truncated to 32 bit, which results in "Invalid data memory access"
error messages. Fix it by setting the MSR_CM bit for this MMU model.

Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
7 years agolinux-user: Use correct target SHMLBA in shmat()
Peter Maydell [Mon, 11 Jul 2016 15:48:11 +0000 (16:48 +0100)]
linux-user: Use correct target SHMLBA in shmat()

The shmat() handling needs to do target-specific handling
of the attach address for shmat():
 * if the SHM_RND flag is passed, the address is rounded
   down to a SHMLBA boundary
 * if SHM_RND is not passed, then the call is failed EINVAL
   if the address is not a multiple of SHMLBA

Since SHMLBA is target-specific, we need to do this
checking and rounding in QEMU and can't leave it up to the
host syscall.

Allow targets to define TARGET_FORCE_SHMLBA and provide
a target_shmlba() function if appropriate, and update
do_shmat() to honour them.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
7 years agolinux-user: Use glib malloc functions in load_symbols()
Peter Maydell [Tue, 12 Jul 2016 12:02:18 +0000 (13:02 +0100)]
linux-user: Use glib malloc functions in load_symbols()

Switch to using the glib malloc functions in load_symbols();
this deals with a Coverity complaint about possible
integer overflow calculating the allocation size with
'nsyms * sizeof(*syms)'.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
7 years agolinux-user: Check dump_write() return in elf_core_dump()
Peter Maydell [Tue, 12 Jul 2016 12:02:17 +0000 (13:02 +0100)]
linux-user: Check dump_write() return in elf_core_dump()

One of the calls to dump_write() in elf_core_dump() was missing
a check for failure (spotted by Coverity). Add the check to
bring it into line with the other calls from this function.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
7 years agolinux-user: Fix error handling in flatload.c target_pread()
Peter Maydell [Tue, 12 Jul 2016 12:02:15 +0000 (13:02 +0100)]
linux-user: Fix error handling in flatload.c target_pread()

The flatload.c target_pread() function is supposed to return
0 on success or negative host errnos; however it wasn't
checking lock_user() for failure or returning the errno from
the pread() call. Fix these problems (the first of which is
noted by Coverity).

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
7 years agolinux-user: Fix incorrect use of host errno in do_ioctl_dm()
Peter Maydell [Tue, 12 Jul 2016 12:02:14 +0000 (13:02 +0100)]
linux-user: Fix incorrect use of host errno in do_ioctl_dm()

do_ioctl_dm() should return target errno values, not host ones;
correct an accidental use of a host errno in an error path.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
7 years agolinux-user: Check lock_user() return value for NULL
Peter Maydell [Tue, 12 Jul 2016 12:02:13 +0000 (13:02 +0100)]
linux-user: Check lock_user() return value for NULL

lock_user() can return NULL, which typically means the syscall
should fail with EFAULT. Add checks in various places where
Coverity spotted that we were missing them.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
7 years agolinux-user: Pass missing MAP_ANONYMOUS to target_mmap() call
Peter Maydell [Tue, 12 Jul 2016 12:02:12 +0000 (13:02 +0100)]
linux-user: Pass missing MAP_ANONYMOUS to target_mmap() call

A target_mmap() call in load_elf_binary() was missing the MAP_ANONYMOUS
flag. (Spotted by Coverity, because target_mmap() will try to use
-1 as the filedescriptor in this case.)

This has never been noticed because the code in question is for
handling ancient SVr4 iBCS2 binaries.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
7 years agolinux-user: report signals being taken in strace output
Peter Maydell [Mon, 18 Jul 2016 17:12:24 +0000 (18:12 +0100)]
linux-user: report signals being taken in strace output

Native strace reports when the process being traced takes a signal:
   --- SIGSEGV {si_signo=SIGSEGV, si_code=SI_KERNEL, si_addr=0} ---

Report something similar when QEMU is doing its internal strace of
the guest process and is about to deliver it a signal.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
7 years agolinux-user: Range check the nfds argument to ppoll syscall
Peter Maydell [Mon, 18 Jul 2016 15:30:36 +0000 (16:30 +0100)]
linux-user: Range check the nfds argument to ppoll syscall

Do an initial range check on the ppoll syscall's nfds argument,
to avoid possible overflow in the calculation of the lock_user()
size argument. The host kernel will later apply the rather lower
limit based on RLIMIT_NOFILE as appropriate.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
7 years agolinux-user: Check for bad event numbers in epoll_wait
Peter Maydell [Mon, 18 Jul 2016 14:35:59 +0000 (15:35 +0100)]
linux-user: Check for bad event numbers in epoll_wait

The kernel checks that the maxevents parameter to epoll_wait
is non-negative and not larger than EP_MAX_EVENTS. Add this
check to our implementation, so that:
 * we fail these cases EINVAL rather than EFAULT
 * we don't pass negative or overflowing values to the
   lock_user() size calculation

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
7 years agolinux-user: Use direct syscall for utimensat
Peter Maydell [Mon, 18 Jul 2016 10:47:55 +0000 (11:47 +0100)]
linux-user: Use direct syscall for utimensat

The linux utimensat syscall differs in semantics from the
libc function because the syscall combines the features
of utimensat() and futimens(). Rather than trying to
split these apart in order to call the two libc functions
which then call the same underlying syscall, just always
directly make the host syscall. This fixes bugs in some
of the corner cases which should return errors from the
syscall but which we were incorrectly directing to futimens().

This doesn't reduce the set of hosts that our syscall
implementation will work on, because if the direct syscall
fails ENOSYS then the libc functions would also fail ENOSYS.
(The system call has been in the kernel since 2.6.22 anyway.)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
7 years agolinux-user: Implement FS_IOC_GETFLAGS and FS_IOC_SETFLAGS ioctls
Peter Maydell [Fri, 15 Jul 2016 17:44:45 +0000 (18:44 +0100)]
linux-user: Implement FS_IOC_GETFLAGS and FS_IOC_SETFLAGS ioctls

Implement the FS_IOC_GETFLAGS and FS_IOC_SETFLAGS ioctls, as used
by chattr.

Note that the type information encoded in these ioctl numbers
is at odds with the actual type the kernel accesses, as discussed
in http://thread.gmane.org/gmane.linux.file-systems/80164.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
7 years agolinux-user: Allow bad msg_name for recvfrom on connected socket
Peter Maydell [Fri, 15 Jul 2016 13:57:28 +0000 (14:57 +0100)]
linux-user: Allow bad msg_name for recvfrom on connected socket

The POSIX standard mandates that for a connected socket recvfrom()
must ignore the msg_name and msg_namelen fields. This is awkward
for QEMU because we will attempt to copy them from guest address
space. Handle this by not immediately returning a TARGET_EFAULT
if the copy failed, but instead passing a known-bad address
to the host kernel, which can then return EFAULT or ignore the
value appropriately.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
7 years agolinux-user: Fix errno for sendrecvmsg with large iovec length
Peter Maydell [Fri, 15 Jul 2016 13:57:27 +0000 (14:57 +0100)]
linux-user: Fix errno for sendrecvmsg with large iovec length

The sendmsg and recvmsg syscalls use a different errno to indicate
an overlarge iovec length from readv and writev. Handle this
special case in do_sendrcvmsg_locked() to avoid getting the
default errno returned by lock_iovec().

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
7 years agolinux-user: Fix handling of iovec counts
Peter Maydell [Fri, 15 Jul 2016 13:57:26 +0000 (14:57 +0100)]
linux-user: Fix handling of iovec counts

In the kernel the length of an iovec is generally handled as
an unsigned long, not an integer; fix the parameter to
lock_iovec() accordingly.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
7 years agoseccomp: adding getrusage to the whitelist
Eduardo Otubo [Wed, 21 Sep 2016 09:09:22 +0000 (11:09 +0200)]
seccomp: adding getrusage to the whitelist

getrusage is used in a number of places throughout the qemu codebase
(notably, in crypto/pbkdf.c).  Without this syscall being whitelisted,
qemu ends up getting killed by the kernel whenever you try to connect to
a VNC console.

Signed-off-by: Brian Rak <brak@gameservers.com>
Acked-by: Eduardo Otubo <eduardo.otubo@profitbricks.com>
7 years agoiotest 055: refactor and speed up
Vladimir Sementsov-Ogievskiy [Tue, 9 Aug 2016 13:15:23 +0000 (16:15 +0300)]
iotest 055: refactor and speed up

Source disk is created and filled with test data before each test case.
Instead initialize it once for the whole unit.

Test disk filling patterns are merged into one pattern.

Also TestSetSpeed used different image_len for source and target (by
mistake) - this is automatically fixed here.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-id: 1470748523-13856-1-git-send-email-vsementsov@virtuozzo.com
Reviewed-by: Pavel Butsykin <pbutsykin@virtuozzo.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
7 years agocommit: get the overlay node before manipulating the backing chain
Alberto Garcia [Mon, 22 Aug 2016 03:36:03 +0000 (23:36 -0400)]
commit: get the overlay node before manipulating the backing chain

The 'block-commit' command has a 'top' parameter to specify the
topmost node from which the data is going to be copied.

   [E] <- [D] <- [C] <- [B] <- [A]

In this case if [C] is the top node then this is the result:

   [E] <- [B] <- [A]

[B] must be modified so its backing image string points to [E] instead
of [C]. commit_start() takes care of reopening [B] in read-write
mode, and commit_complete() puts it back in read-only mode once the
operation has finished.

In order to find [B] (the overlay node) we look for the node that has
[C] (the top node) as its backing image. However in commit_complete()
we're doing it after [C] has been removed from the chain, so [B] is
never found and remains in read-write mode.

This patch gets the overlay node before the backing chain is
manipulated.

Signed-off-by: Alberto Garcia <berto@igalia.com>
Message-id: 1471836963-28548-1-git-send-email-berto@igalia.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
7 years agoblockdev: Modularize nfs block driver
Colin Lord [Fri, 12 Aug 2016 13:27:04 +0000 (09:27 -0400)]
blockdev: Modularize nfs block driver

Modularizes the nfs block driver so that it gets dynamically loaded.

Signed-off-by: Colin Lord <clord@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1471008424-16465-5-git-send-email-clord@redhat.com
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
7 years agoblockdev: Add dynamic module loading for block drivers
Marc Mari [Fri, 12 Aug 2016 13:27:03 +0000 (09:27 -0400)]
blockdev: Add dynamic module loading for block drivers

Extend the current module interface to allow for block drivers to be
loaded dynamically on request. The only block drivers that can be
converted into modules are the drivers that don't perform any init
operation except for registering themselves.

In addition, only the protocol drivers are being modularized, as they
are the only ones which see significant performance benefits. The format
drivers do not generally link to external libraries, so modularizing
them is of no benefit from a performance perspective.

All the necessary module information is located in a new structure found
in module_block.h

This spoils the purpose of 5505e8b76f (block/dmg: make it modular).

Before this patch, if module build is enabled, block-dmg.so is linked to
libbz2, whereas the main binary is not. In downstream, theoretically, it
means only the qemu-block-extra package depends on libbz2, while the
main QEMU package needn't to. With this patch, we (temporarily) change
the case so that the main QEMU depends on libbz2 again.

Signed-off-by: Marc Marí <markmb@redhat.com>
Signed-off-by: Colin Lord <clord@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1471008424-16465-4-git-send-email-clord@redhat.com
Reviewed-by: Max Reitz <mreitz@redhat.com>
[mreitz: Do a signed comparison against the length of
 block_driver_modules[], so it will not cause a compile error when
 empty]
Signed-off-by: Max Reitz <mreitz@redhat.com>
7 years agoblockdev: Add dynamic generation of module_block.h
Marc Mari [Fri, 12 Aug 2016 13:27:02 +0000 (09:27 -0400)]
blockdev: Add dynamic generation of module_block.h

To simplify the addition of new block modules, add a script that generates
module_block.h automatically from the modules' source code.

This script assumes that the QEMU coding style rules are followed.

Signed-off-by: Marc Marí <markmb@redhat.com>
Signed-off-by: Colin Lord <clord@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1471008424-16465-3-git-send-email-clord@redhat.com
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
7 years agoblockdev: prepare iSCSI block driver for dynamic loading
Colin Lord [Fri, 12 Aug 2016 13:27:01 +0000 (09:27 -0400)]
blockdev: prepare iSCSI block driver for dynamic loading

This commit moves the initialization of the QemuOptsList qemu_iscsi_opts
struct out of block/iscsi.c in order to allow the iscsi module to be
dynamically loaded.

Signed-off-by: Colin Lord <clord@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1471008424-16465-2-git-send-email-clord@redhat.com
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
7 years agoqemu-img: add skip option to dd
Reda Sallahi [Wed, 10 Aug 2016 14:16:09 +0000 (16:16 +0200)]
qemu-img: add skip option to dd

This adds the skip option which allows qemu-img dd to skip a number of blocks
before copying the input.

A test case was added to test the skip option.

Signed-off-by: Reda Sallahi <fullmanet@gmail.com>
Message-id: 20160810141609.32727-1-fullmanet@gmail.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
7 years agoqemu-img: add the 'dd' subcommand
Reda Sallahi [Wed, 10 Aug 2016 02:43:12 +0000 (04:43 +0200)]
qemu-img: add the 'dd' subcommand

This patch adds a basic dd subcommand analogous to dd(1) to qemu-img.

For the start, this implements the bs, if, of and count options and requires
both if and of to be specified (no stdin/stdout if not specified) and doesn't
support tty, pipes, etc.

The image format must be specified with -O for the output if the raw format
is not the intended one.

Two tests are added to test qemu-img dd.

Signed-off-by: Reda Sallahi <fullmanet@gmail.com>
Message-id: 20160810024312.14544-1-fullmanet@gmail.com
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
[mreitz: Moved test 158 to 170]
Signed-off-by: Max Reitz <mreitz@redhat.com>
7 years agotcg/i386: Extend TARGET_PAGE_MASK to the proper type
Richard Henderson [Tue, 20 Sep 2016 18:45:30 +0000 (11:45 -0700)]
tcg/i386: Extend TARGET_PAGE_MASK to the proper type

TARGET_PAGE_MASK, as defined, has type "int".  We need to extend
that to the proper target width before oring in an "unsigned".

Signed-off-by: Richard Henderson <rth@twiddle.net>
7 years agobuild-sys: fix make install regression
Riku Voipio [Tue, 20 Sep 2016 09:01:34 +0000 (12:01 +0300)]
build-sys: fix make install regression

Since bd6092e Replace qmp-commands.hx by docs/qmp-commands.txt
make install fails if building out of source-tree.

Cc: Marc-André Lureau <marcandre.lureau@redhat.com>
Cc: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-id: 1474362094-2293-1-git-send-email-riku.voipio@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7 years agoMerge remote-tracking branch 'remotes/ehabkost/tags/x86-pull-request' into staging
Peter Maydell [Tue, 20 Sep 2016 09:34:45 +0000 (10:34 +0100)]
Merge remote-tracking branch 'remotes/ehabkost/tags/x86-pull-request' into staging

x86 queue, 2016-09-19

# gpg: Signature made Mon 19 Sep 2016 19:38:05 BST
# gpg:                using RSA key 0x2807936F984DC5A6
# 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-pull-request:
  linux-user-i386: Fix crash on cpuid
  kvm/apic: drop debugging
  target-i386: Use struct X86XSaveArea in fpu_helper.c

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7 years agolinux-user-i386: Fix crash on cpuid
Marc-André Lureau [Fri, 16 Sep 2016 15:50:23 +0000 (19:50 +0400)]
linux-user-i386: Fix crash on cpuid

Running cpuid instructions with a simple run like:
i386-linux-user/qemu-i386 tests/tcg/sha1-i386

Results in the following assert:
 #0  0x00007ffff64246f5 in raise () from /lib64/libc.so.6
 #1  0x00007ffff64262fa in abort () from /lib64/libc.so.6
 #2  0x00007ffff7937ec5 in g_assertion_message () from /lib64/libglib-2.0.so.0
 #3  0x00007ffff7937f5a in g_assertion_message_expr () from /lib64/libglib-2.0.so.0
 #4  0x000055555561b54c in apicid_bitwidth_for_count (count=0) at /home/elmarco/src/qemu/include/hw/i386/topology.h:58
 #5  0x000055555561b58a in apicid_smt_width (nr_cores=0, nr_threads=0) at /home/elmarco/src/qemu/include/hw/i386/topology.h:67
 #6  0x000055555561b5c3 in apicid_core_offset (nr_cores=0, nr_threads=0) at /home/elmarco/src/qemu/include/hw/i386/topology.h:82
 #7  0x000055555561b5e3 in apicid_pkg_offset (nr_cores=0, nr_threads=0) at /home/elmarco/src/qemu/include/hw/i386/topology.h:89
 #8  0x000055555561dd86 in cpu_x86_cpuid (env=0x555557999550, index=4, count=3, eax=0x7fffffffcae8, ebx=0x7fffffffcaec, ecx=0x7fffffffcaf0, edx=0x7fffffffcaf4) at /home/elmarco/src/qemu/target-i386/cpu.c:2405
 #9  0x0000555555638e8e in helper_cpuid (env=0x555557999550) at /home/elmarco/src/qemu/target-i386/misc_helper.c:106
 #10 0x000055555599dc5e in static_code_gen_buffer ()
 #11 0x00005555555952f8 in cpu_tb_exec (cpu=0x5555579912d0, itb=0x7ffff4371ab0) at /home/elmarco/src/qemu/cpu-exec.c:166
 #12 0x0000555555595c8e in cpu_loop_exec_tb (cpu=0x5555579912d0, tb=0x7ffff4371ab0, last_tb=0x7fffffffd088, tb_exit=0x7fffffffd084, sc=0x7fffffffd0a0) at /home/elmarco/src/qemu/cpu-exec.c:517
 #13 0x0000555555595e50 in cpu_exec (cpu=0x5555579912d0) at /home/elmarco/src/qemu/cpu-exec.c:612
 #14 0x00005555555c065b in cpu_loop (env=0x555557999550) at /home/elmarco/src/qemu/linux-user/main.c:297
 #15 0x00005555555c25b2 in main (argc=2, argv=0x7fffffffd848, envp=0x7fffffffd860) at /home/elmarco/src/qemu/linux-user/main.c:4803

The fields are set in qemu_init_vcpu() with softmmu, but it's a stub
with linux-user.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
7 years agokvm/apic: drop debugging
Michael S. Tsirkin [Thu, 15 Sep 2016 15:05:51 +0000 (18:05 +0300)]
kvm/apic: drop debugging

commit 78d6a05d2f69cbfa6e95f0a4a24a2c934969913b
    ("x86/lapic: Load LAPIC state at post_load")
has some debugging leftovers.

Drop them.

Cc: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
7 years agotarget-i386: Use struct X86XSaveArea in fpu_helper.c
Richard Henderson [Wed, 6 Jul 2016 20:35:00 +0000 (13:35 -0700)]
target-i386: Use struct X86XSaveArea in fpu_helper.c

This avoids a double hand-full of magic numbers in the
xsave and xrstor helper functions.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
7 years agoMerge remote-tracking branch 'remotes/armbru/tags/pull-qapi-2016-09-19' into staging
Peter Maydell [Mon, 19 Sep 2016 17:06:51 +0000 (18:06 +0100)]
Merge remote-tracking branch 'remotes/armbru/tags/pull-qapi-2016-09-19' into staging

QAPI patches for 2016-09-19

# gpg: Signature made Mon 19 Sep 2016 17:27:42 BST
# gpg:                using RSA key 0x3870B400EB918653
# 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-qapi-2016-09-19:
  Replace qmp-commands.hx by docs/qmp-commands.txt
  qmp-commands.hx: fix some styling
  build-sys: remove qmp-commands-old.h
  monitor: use qmp_dispatch()
  tests: add a test to check invalid args
  qapi: check invalid arguments on no-args commands
  qapi: remove the "middle" mode
  monitor: remove mhandler.cmd_new
  monitor: implement 'qmp_query_commands' without qmp_cmds
  monitor: use qmp_find_command() (using generated qapi code)
  qapi: export the marshallers
  qmp: Hack to keep commands configuration-specific
  qapi: Support unregistering QMP commands
  monitor: register gen:false commands manually
  monitor: simplify invalid_qmp_mode()
  qapi-schema: add 'device_add'
  qapi-schema: use generated marshaller for 'qmp_capabilities'
  build-sys: define QEMU_VERSION_{MAJOR, MINOR, MICRO}

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7 years agoReplace qmp-commands.hx by docs/qmp-commands.txt
Marc-André Lureau [Mon, 12 Sep 2016 09:19:13 +0000 (13:19 +0400)]
Replace qmp-commands.hx by docs/qmp-commands.txt

The only remaining function of qmp-commands.hx is to let us generate
qmp-commands.txt from it.  Replace qmp-commands.hx by qmp-commands.txt.

We intend to move the documentation into the QAPI schema and generate
qapi-commands.txt from it, but not right now.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20160912091913.15831-19-marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
7 years agoMerge remote-tracking branch 'remotes/berrange/tags/pull-qcrypto-2016-09-19-2' into...
Peter Maydell [Mon, 19 Sep 2016 16:10:06 +0000 (17:10 +0100)]
Merge remote-tracking branch 'remotes/berrange/tags/pull-qcrypto-2016-09-19-2' into staging

Merge qcrypto 2016/09/19 v2

# gpg: Signature made Mon 19 Sep 2016 16:30:52 BST
# gpg:                using RSA key 0xBE86EBB415104FDF
# gpg: Good signature from "Daniel P. Berrange <dan@berrange.com>"
# gpg:                 aka "Daniel P. Berrange <berrange@redhat.com>"
# Primary key fingerprint: DAF3 A6FD B26B 6291 2D0E  8E3F BE86 EBB4 1510 4FDF

* remotes/berrange/tags/pull-qcrypto-2016-09-19-2:
  crypto: add trace points for TLS cert verification
  crypto: support more hash algorithms for pbkdf
  crypto: increase default pbkdf2 time for luks to 2 seconds
  crypto: remove bogus /= 2 for pbkdf iterations
  crypto: use correct derived key size when timing pbkdf
  crypto: clear out buffer after timing pbkdf algorithm
  crypto: make PBKDF iterations configurable for LUKS format
  crypto: use uint64_t for pbkdf iteration count parameters

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7 years agoqmp-commands.hx: fix some styling
Marc-André Lureau [Mon, 12 Sep 2016 09:19:12 +0000 (13:19 +0400)]
qmp-commands.hx: fix some styling

Add some missing lines, remove superflous @ in command name, remove
trailing spaces.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20160912091913.15831-18-marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
7 years agobuild-sys: remove qmp-commands-old.h
Marc-André Lureau [Mon, 12 Sep 2016 09:19:11 +0000 (13:19 +0400)]
build-sys: remove qmp-commands-old.h

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20160912091913.15831-17-marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
7 years agomonitor: use qmp_dispatch()
Marc-André Lureau [Mon, 12 Sep 2016 09:19:10 +0000 (13:19 +0400)]
monitor: use qmp_dispatch()

Replace the old manual dispatch and validation code by the generic one
provided by qapi common code.

Note that it is now possible to call the following commands that used to
be disabled by compile-time conditionals:
- dump-skeys
- query-spice
- rtc-reset-reinjection
- query-gic-capabilities

Their fallback functions return an appropriate "feature disabled" error.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20160912091913.15831-16-marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
7 years agotests: add a test to check invalid args
Marc-André Lureau [Mon, 12 Sep 2016 09:19:09 +0000 (13:19 +0400)]
tests: add a test to check invalid args

Check that invalid args on commands without arguments returns an error.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20160912091913.15831-15-marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
7 years agoqapi: check invalid arguments on no-args commands
Marc-André Lureau [Mon, 12 Sep 2016 09:19:08 +0000 (13:19 +0400)]
qapi: check invalid arguments on no-args commands

The generated marshal functions do not visit arguments from commands
that take no arguments. Thus they fail to catch invalid
members. Visit the arguments, if provided, to throw an error in case of
invalid members.

Currently, qmp_check_client_args() checks for invalid arguments and
correctly catches this case. When switching to qmp_dispatch() we want to
keep that behaviour. The commands using 'O' may have arbitrary
arguments, and must have 'gen': false in the qapi schema to skip the
generated checks.

Old/new diff:
 void qmp_marshal_stop(QDict *args, QObject **ret, Error **errp)
 {
     Error *err = NULL;
+    Visitor *v = NULL;

-    (void)args;
+    if (args) {
+        v = qmp_input_visitor_new(QOBJECT(args), true);
+        visit_start_struct(v, NULL, NULL, 0, &err);
+        if (err) {
+            goto out;
+        }
+
+        if (!err) {
+            visit_check_struct(v, &err);
+        }
+        visit_end_struct(v, NULL);
+        if (err) {
+            goto out;
+        }
+    }

     qmp_stop(&err);
+
+out:
     error_propagate(errp, err);
+    visit_free(v);
+    if (args) {
+        v = qapi_dealloc_visitor_new();
+        visit_start_struct(v, NULL, NULL, 0, NULL);
+
+        visit_end_struct(v, NULL);
+        visit_free(v);
+    }
 }

The new code closely resembles code for a command with arguments.
Differences:
- the visit of the argument and its cleanup struct don't visit any
  members (because there are none).
- the visit of the argument struct and its cleanup are conditional.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20160912091913.15831-14-marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
7 years agoqapi: remove the "middle" mode
Marc-André Lureau [Mon, 12 Sep 2016 09:19:07 +0000 (13:19 +0400)]
qapi: remove the "middle" mode

Now that the register function is always generated, we can
remove the so-called "middle" mode from the generator script.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20160912091913.15831-13-marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
7 years agomonitor: remove mhandler.cmd_new
Marc-André Lureau [Mon, 12 Sep 2016 09:19:06 +0000 (13:19 +0400)]
monitor: remove mhandler.cmd_new

This is no longer necessary now that we aren't using middle mode
anymore.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20160912091913.15831-12-marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
7 years agomonitor: implement 'qmp_query_commands' without qmp_cmds
Marc-André Lureau [Mon, 12 Sep 2016 09:19:05 +0000 (13:19 +0400)]
monitor: implement 'qmp_query_commands' without qmp_cmds

One step towards getting rid of the static qmp_cmds table.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20160912091913.15831-11-marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
7 years agomonitor: use qmp_find_command() (using generated qapi code)
Marc-André Lureau [Mon, 12 Sep 2016 09:19:04 +0000 (13:19 +0400)]
monitor: use qmp_find_command() (using generated qapi code)

Stop using the so-called 'middle' mode. Instead, use qmp_find_command()
from generated qapi commands registry. Update and fix the documentation
too.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20160912091913.15831-10-marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
7 years agoqapi: export the marshallers
Marc-André Lureau [Mon, 12 Sep 2016 09:19:03 +0000 (13:19 +0400)]
qapi: export the marshallers

Make it possible to call marshallers manually, without going through
qmp_dispatch(). (this is currently only possible in middle-mode, but
it's also useful in general)

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20160912091913.15831-9-marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
7 years agoqmp: Hack to keep commands configuration-specific
Marc-André Lureau [Mon, 12 Sep 2016 09:19:02 +0000 (13:19 +0400)]
qmp: Hack to keep commands configuration-specific

We currently define QMP commands in two places: the QAPI schema and
qmp-commands.hx.  The latter is preprocessed, the former is not.  We
use the preprocessor to suppress configuration-specific commands.  For
instance, query-spice is only available #ifdef CONFIG_SPICE.

QMP command dispatch and query-commands use the qmp-commands.hx
definition, and thus obey the #ifdeffery there.  Good, because it lets
QMP clients probe for available features more easily.

query-qmp-schema uses the QAPI schema, and thus lists the
configuration-specific commands even when they're unavailable.  Not so
good.

We're about to flip command dispatch and query-commands to the
non-middle-mode command registry, which uses the QAPI schema, so we
can ditch qmp-commands.hx.  To avoid regressing query-commands,
arrange for commands that are suppressed with the preprocessor now to
be unregistered with that registry.  This will keep them unavailable
and out of query-commands when we flip command dispatch and
query-commands to that registry, exactly as before.

This is a hack.  The proper solution is to support
configuration-specific commands in the QAPI schema.  Mark it FIXME.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20160912091913.15831-8-marcandre.lureau@redhat.com>

7 years agoqapi: Support unregistering QMP commands
Markus Armbruster [Mon, 12 Sep 2016 09:19:01 +0000 (13:19 +0400)]
qapi: Support unregistering QMP commands

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20160912091913.15831-7-marcandre.lureau@redhat.com>

7 years agomonitor: register gen:false commands manually
Marc-André Lureau [Mon, 12 Sep 2016 09:19:00 +0000 (13:19 +0400)]
monitor: register gen:false commands manually

Since a few commands are using 'gen': false, they are not registered
automatically by the generator. Register manually instead.

This is in preparation for removal of qapi 'middle' mode generation.

Note that qmp_init_marshal() function isn't run yet, so the commands
aren't actually registered, until module_call_init(MODULE_INIT_QAPI) is
added in a later patch.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20160912091913.15831-6-marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
7 years agomonitor: simplify invalid_qmp_mode()
Marc-André Lureau [Mon, 12 Sep 2016 09:18:59 +0000 (13:18 +0400)]
monitor: simplify invalid_qmp_mode()

handle_qmp_command() will switch to use qmp_dispatch().  It won't have a
pointer to the marshaller function anymore, but only the name of the
command to invoke. Simplify invalid_qmp_mode() so it can just be called
with the command name.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20160912091913.15831-5-marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>