Commit Graph

783 Commits

Author SHA1 Message Date
Gerd Hoffmann
2fc979cb9d Revert "hw/display/ramfb: initialize fw-config space with xres/ yres"
This reverts commit f79081b4b7.

Patch has broken byteorder handling: RAMFBCfg fields are in bigendian
byteorder, the reset function doesn't care so native byteorder is used
instead.  Given this went unnoticed so far the feature is obviously
unused, so just revert the patch.

Cc: Hou Qiming <hqm03ster@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Laszlo Ersek <lersek@redhat.com>
Message-id: 20200429115236.28709-2-kraxel@redhat.com
2020-05-18 15:42:34 +02:00
Philippe Mathieu-Daudé
63dc3465d6 hw/display: Include local 'framebuffer.h'
The "framebuffer.h" header is not an exported include.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Thomas Huth <huth@tuxfamily.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200504082003.16298-2-f4bug@amsat.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-05-18 15:40:04 +02:00
BALATON Zoltan
b0588cb51d ati-vga: Do not allow unaligned access via index register
According to docs bits 1 and 0 of MM_INDEX are hard coded to 0 so
unaligned access via this register should not be possible.
This also fixes problems reported in bug #1878134.

Buglink: https://bugs.launchpad.net/qemu/+bug/1878134
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Tested-by: Alexander Bulekov <alxndr@bu.edu>
Acked-by: Alexander Bulekov <alxndr@bu.edu>
Message-id: 20200516132352.39E9374594E@zero.eik.bme.hu
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-05-18 15:39:59 +02:00
Philippe Mathieu-Daudé
8e5c952b37 hw: Remove unnecessary DEVICE() cast
The DEVICE() macro is defined as:

  #define DEVICE(obj) OBJECT_CHECK(DeviceState, (obj), TYPE_DEVICE)

which expands to:

  ((DeviceState *)object_dynamic_cast_assert((Object *)(obj), (name),
                                             __FILE__, __LINE__,
                                             __func__))

This assertion can only fail when @obj points to something other
than its stated type, i.e. when we're in undefined behavior country.

Remove the unnecessary DEVICE() casts when we already know the
pointer is of DeviceState type.

Patch created mechanically using spatch with this script:

  @@
  typedef DeviceState;
  DeviceState *s;
  @@
  -   DEVICE(s)
  +   s

Acked-by: David Gibson <david@gibson.dropbear.id.au>
Acked-by: Paul Durrant <paul@xen.org>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Acked-by: John Snow <jsnow@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20200512070020.22782-4-f4bug@amsat.org>
2020-05-15 07:08:52 +02:00
Markus Armbruster
b69c3c21a5 qdev: Unrealize must not fail
Devices may have component devices and buses.

Device realization may fail.  Realization is recursive: a device's
realize() method realizes its components, and device_set_realized()
realizes its buses (which should in turn realize the devices on that
bus, except bus_set_realized() doesn't implement that, yet).

When realization of a component or bus fails, we need to roll back:
unrealize everything we realized so far.  If any of these unrealizes
failed, the device would be left in an inconsistent state.  Must not
happen.

device_set_realized() lets it happen: it ignores errors in the roll
back code starting at label child_realize_fail.

Since realization is recursive, unrealization must be recursive, too.
But how could a partly failed unrealize be rolled back?  We'd have to
re-realize, which can fail.  This design is fundamentally broken.

device_set_realized() does not roll back at all.  Instead, it keeps
unrealizing, ignoring further errors.

It can screw up even for a device with no buses: if the lone
dc->unrealize() fails, it still unregisters vmstate, and calls
listeners' unrealize() callback.

bus_set_realized() does not roll back either.  Instead, it stops
unrealizing.

Fortunately, no unrealize method can fail, as we'll see below.

To fix the design error, drop parameter @errp from all the unrealize
methods.

Any unrealize method that uses @errp now needs an update.  This leads
us to unrealize() methods that can fail.  Merely passing it to another
unrealize method cannot cause failure, though.  Here are the ones that
do other things with @errp:

* virtio_serial_device_unrealize()

  Fails when qbus_set_hotplug_handler() fails, but still does all the
  other work.  On failure, the device would stay realized with its
  resources completely gone.  Oops.  Can't happen, because
  qbus_set_hotplug_handler() can't actually fail here.  Pass
  &error_abort to qbus_set_hotplug_handler() instead.

* hw/ppc/spapr_drc.c's unrealize()

  Fails when object_property_del() fails, but all the other work is
  already done.  On failure, the device would stay realized with its
  vmstate registration gone.  Oops.  Can't happen, because
  object_property_del() can't actually fail here.  Pass &error_abort
  to object_property_del() instead.

* spapr_phb_unrealize()

  Fails and bails out when remove_drcs() fails, but other work is
  already done.  On failure, the device would stay realized with some
  of its resources gone.  Oops.  remove_drcs() fails only when
  chassis_from_bus()'s object_property_get_uint() fails, and it can't
  here.  Pass &error_abort to remove_drcs() instead.

Therefore, no unrealize method can fail before this patch.

device_set_realized()'s recursive unrealization via bus uses
object_property_set_bool().  Can't drop @errp there, so pass
&error_abort.

We similarly unrealize with object_property_set_bool() elsewhere,
always ignoring errors.  Pass &error_abort instead.

Several unrealize methods no longer handle errors from other unrealize
methods: virtio_9p_device_unrealize(),
virtio_input_device_unrealize(), scsi_qdev_unrealize(), ...
Much of the deleted error handling looks wrong anyway.

One unrealize methods no longer ignore such errors:
usb_ehci_pci_exit().

Several realize methods no longer ignore errors when rolling back:
v9fs_device_realize_common(), pci_qdev_unrealize(),
spapr_phb_realize(), usb_qdev_realize(), vfio_ccw_realize(),
virtio_device_realize().

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20200505152926.18877-17-armbru@redhat.com>
2020-05-15 07:08:14 +02:00
Markus Armbruster
d2623129a7 qom: Drop parameter @errp of object_property_add() & friends
The only way object_property_add() can fail is when a property with
the same name already exists.  Since our property names are all
hardcoded, failure is a programming error, and the appropriate way to
handle it is passing &error_abort.

Same for its variants, except for object_property_add_child(), which
additionally fails when the child already has a parent.  Parentage is
also under program control, so this is a programming error, too.

We have a bit over 500 callers.  Almost half of them pass
&error_abort, slightly fewer ignore errors, one test case handles
errors, and the remaining few callers pass them to their own callers.

The previous few commits demonstrated once again that ignoring
programming errors is a bad idea.

Of the few ones that pass on errors, several violate the Error API.
The Error ** argument must be NULL, &error_abort, &error_fatal, or a
pointer to a variable containing NULL.  Passing an argument of the
latter kind twice without clearing it in between is wrong: if the
first call sets an error, it no longer points to NULL for the second
call.  ich9_pm_add_properties(), sparc32_ledma_realize(),
sparc32_dma_realize(), xilinx_axidma_realize(), xilinx_enet_realize()
are wrong that way.

When the one appropriate choice of argument is &error_abort, letting
users pick the argument is a bad idea.

Drop parameter @errp and assert the preconditions instead.

There's one exception to "duplicate property name is a programming
error": the way object_property_add() implements the magic (and
undocumented) "automatic arrayification".  Don't drop @errp there.
Instead, rename object_property_add() to object_property_try_add(),
and add the obvious wrapper object_property_add().

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20200505152926.18877-15-armbru@redhat.com>
[Two semantic rebase conflicts resolved]
2020-05-15 07:07:58 +02:00
Peter Maydell
a2261b2754 trivial patches (20200504)
Silent static analyzer warning
 Remove dead assignments
 Support -chardev serial on macOS
 Update MAINTAINERS
 Some cosmetic changes
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Merge remote-tracking branch 'remotes/vivier2/tags/trivial-branch-for-5.1-pull-request' into staging

trivial patches (20200504)

Silent static analyzer warning
Remove dead assignments
Support -chardev serial on macOS
Update MAINTAINERS
Some cosmetic changes

# gpg: Signature made Mon 04 May 2020 16:45:18 BST
# gpg:                using RSA key CD2F75DDC8E3A4DC2E4F5173F30C38BD3F2FBE3C
# gpg:                issuer "laurent@vivier.eu"
# gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>" [full]
# gpg:                 aka "Laurent Vivier <laurent@vivier.eu>" [full]
# gpg:                 aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>" [full]
# Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F  5173 F30C 38BD 3F2F BE3C

* remotes/vivier2/tags/trivial-branch-for-5.1-pull-request:
  hw/timer/pxa2xx_timer: Add assertion to silent static analyzer warning
  hw/timer/stm32f2xx_timer: Remove dead assignment
  hw/gpio/aspeed_gpio: Remove dead assignment
  hw/isa/i82378: Remove dead assignment
  hw/ide/sii3112: Remove dead assignment
  hw/input/adb-kbd: Remove dead assignment
  hw/i2c/pm_smbus: Remove dead assignment
  blockdev: Remove dead assignment
  block: Avoid dead assignment
  Compress lines for immediate return
  chardev: Add macOS to list of OSes that support -chardev serial
  MAINTAINERS: Update Keith Busch's email address
  elf_ops: Don't try to g_mapped_file_unref(NULL)
  hw/mem/pc-dimm: Fix line over 80 characters warning
  hw/mem/pc-dimm: Print slot number on error at pc_dimm_pre_plug()
  MAINTAINERS: Mark the LatticeMico32 target as orphan
  timer/exynos4210_mct: Remove redundant statement in exynos4210_mct_write()
  display/blizzard: use extract16() for fix clang analyzer warning in blizzard_draw_line16_32()
  scsi/esp-pci: add g_assert() for fix clang analyzer warning in esp_pci_io_write()

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-05-05 14:03:28 +01:00
Peter Maydell
5c7c46fea9 Pull request
v2:
  * Fixed stray slirp submodule change [Peter]
 
 Fixes for the lock guard macros, code conversions to the lock guard macros, and
 support for selecting fuzzer targets with argv[0].
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Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into staging

Pull request

v2:
 * Fixed stray slirp submodule change [Peter]

Fixes for the lock guard macros, code conversions to the lock guard macros, and
support for selecting fuzzer targets with argv[0].

# gpg: Signature made Mon 04 May 2020 16:11:11 BST
# gpg:                using RSA key 8695A8BFD3F97CDAAC35775A9CA4ABB381AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" [full]
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>" [full]
# Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35  775A 9CA4 ABB3 81AB 73C8

* remotes/stefanha/tags/block-pull-request:
  lockable: Replace locks with lock guard macros
  lockable: replaced locks with lock guard macros where appropriate
  lockable: fix __COUNTER__ macro to be referenced properly
  fuzz: select fuzz target using executable name

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-05-04 20:35:59 +01:00
Daniel Brodsky
6e8a355de6 lockable: replaced locks with lock guard macros where appropriate
- ran regexp "qemu_mutex_lock\(.*\).*\n.*if" to find targets
- replaced result with QEMU_LOCK_GUARD if all unlocks at function end
- replaced result with WITH_QEMU_LOCK_GUARD if unlock not at end

Signed-off-by: Daniel Brodsky <dnbrdsky@gmail.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Message-id: 20200404042108.389635-3-dnbrdsky@gmail.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2020-05-04 16:07:43 +01:00
Anthoine Bourgeois
15138b5e6f virtio-vga: fix virtio-vga bar ordering
With virtio-vga, pci bar are reordered. Bar #2 is used for compatibility
with stdvga. By default, bar #2 is used by virtio modern io bar.
This bar is the last one introduce in the virtio pci bar layout and it's
crushed by the virtio-vga reordering. So virtio-vga and
modern-pio-notify are incompatible because virtio-vga failed to
initialize with this option.

This fix sets the modern io bar to the bar #5 to avoid conflict.

Signed-off-by: Anthoine Bourgeois <anthoine.bourgeois@gmail.com>
Message-Id: <20200422215455.10244-1-anthoine.bourgeois@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
2020-05-04 10:25:02 -04:00
Simran Singhal
b3ac2b94cd Compress lines for immediate return
Compress two lines into a single line if immediate return statement is found.

It also remove variables progress, val, data, ret and sock
as they are no longer needed.

Remove space between function "mixer_load" and '(' to fix the
checkpatch.pl error:-
ERROR: space prohibited between function name and open parenthesis '('

Done using following coccinelle script:
@@
local idexpression ret;
expression e;
@@

-ret =
+return
     e;
-return ret;

Signed-off-by: Simran Singhal <singhalsimran0@gmail.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20200401165314.GA3213@simran-Inspiron-5558>
[lv: in handle_aiocb_write_zeroes_unmap() move "int ret" inside the #ifdef]
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-05-04 14:43:22 +02:00
Chen Qun
fd1c220395 display/blizzard: use extract16() for fix clang analyzer warning in blizzard_draw_line16_32()
Clang static code analyzer show warning:
  hw/display/blizzard.c:940:9: warning: Value stored to 'data' is never read
        data >>= 5;
        ^        ~
Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Chen Qun <kuhn.chenqun@huawei.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20200325025919.21316-3-kuhn.chenqun@huawei.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-05-04 11:17:27 +02:00
Markus Armbruster
ee29f6e92d bochs-display: Fix vgamem=SIZE error handling
bochs_display_realize() rejects out-of-range vgamem.  The error
handling is broken:

    $ qemu-system-x86_64 -S -display none -monitor stdio
    QEMU 4.2.93 monitor - type 'help' for more information
    (qemu) device_add bochs-display,vgamem=1
    Error: bochs-display: video memory too small
    (qemu) device_add bochs-display,vgamem=1
    RAMBlock "0000:00:04.0/bochs-display-vram" already registered, abort!
    Aborted (core dumped)

Cause: bochs_display_realize() neglects to bail out after setting the
error.  Fix that.

Fixes: 765c942908
Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200422130719.28225-8-armbru@redhat.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
2020-04-29 08:01:52 +02:00
BALATON Zoltan
ac2071c379 ati-vga: Fix checks in ati_2d_blt() to avoid crash
In some corner cases (that never happen during normal operation but a
malicious guest could program wrong values) pixman functions were
called with parameters that result in a crash. Fix this and add more
checks to disallow such cases.

Reported-by: Ziming Zhang <ezrakiez@gmail.com>
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Message-id: 20200406204029.19559747D5D@zero.eik.bme.hu
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-04-07 09:25:23 +02:00
Philippe Mathieu-Daudé
6111a0c0ed hw/arm/bcm283x: Correct the license text
The license is the 'GNU General Public License v2.0 or later',
not 'and':

  This program is free software; you can redistribute it and/ori
  modify it under the terms of the GNU General Public License as
  published by the Free Software Foundation; either version 2 of
  the License, or (at your option) any later version.

Fix the license comment.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20200312213455.15854-1-philmd@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-03-23 17:22:30 +00:00
Philippe Mathieu-Daudé
b9fc4f6e62 hw/display: Let devices own the MemoryRegion they create
Avoid orphan memory regions being added in the /unattached QOM
container.

This commit was produced with the Coccinelle script
scripts/coccinelle/memory-region-housekeeping.cocci.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2020-03-17 15:18:48 +01:00
Philippe Mathieu-Daudé
52013bcea0 hw/display: Use memory_region_init_rom() with read-only regions
This commit was produced with the Coccinelle script
scripts/coccinelle/memory-region-housekeeping.cocci.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2020-03-17 15:18:46 +01:00
Gerd Hoffmann
f872c76296 stdvga+bochs-display: add dummy mmio handler
The bochs-display mmio bar has some sub-regions with the actual hardware
registers.  What happens when the guest access something outside those
regions depends on the archirecture.  On x86 those reads succeed (and
return 0xff I think).  On risc-v qemu aborts.

This patch adds handlers for the parent region, to make the wanted
behavior explicit and to make things consistent across architectures.

v2:
 - use existing unassigned_io_ops.
 - also cover stdvga.

Cc: Alistair Francis <alistair23@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20200309100009.17624-1-kraxel@redhat.com
2020-03-16 12:40:47 +01:00
Chen Qun
488a0ddae2 display/exynos4210_fimd: Remove redundant statement in exynos4210_fimd_update()
Clang static code analyzer show warning:
hw/display/exynos4210_fimd.c:1313:17: warning: Value stored to 'is_dirty' is never read
                is_dirty = false;

Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Chen Qun <kuhn.chenqun@huawei.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20200302130715.29440-9-kuhn.chenqun@huawei.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-03-09 15:59:31 +01:00
Chen Qun
4e34d82eee display/pxa2xx_lcd: Remove redundant statement in pxa2xx_palette_parse()
Clang static code analyzer show warning:
hw/display/pxa2xx_lcd.c:596:9: warning: Value stored to 'format' is never read
        format = 0;
        ^        ~

Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Chen Qun <kuhn.chenqun@huawei.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20200302130715.29440-8-kuhn.chenqun@huawei.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-03-09 15:59:31 +01:00
Gerd Hoffmann
44b5c1ebfa qxl: map rom r/o
Map qxl rom read-only into the guest, so the guest can't tamper with the
content.  qxl has a shadow copy of the rom to deal with that, but the
shadow doesn't cover the mode list.  A privilidged user in the guest can
manipulate the mode list and that to trick qemu into oob reads, leading
to a DoS via segfault if that read access happens to hit unmapped memory.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20200225055920.17261-2-kraxel@redhat.com
2020-03-02 08:24:36 +01:00
Anton V. Boyarshinov
cd8fef8d4b Arithmetic error in EDID generation fixed
To calculate screen size in centimeters we should calculate:
pixels/dpi*2.54
but not
pixels*dpi/2540

Using wrong formula we actually get 65 DPI and very small fonts.

Signed-off-by: Anton V. Boyarshinov <boyarsh@altlinux.org>
Message-id: 20200226122054.366b9cda@table.localdomain
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-03-02 08:20:30 +01:00
Paolo Bonzini
9e264985ff Merge branch 'exec_rw_const_v4' of https://github.com/philmd/qemu into HEAD 2020-02-25 13:41:48 +01:00
Peter Maydell
7afee874f1 Fix memory leak with fdt
cosmetic change in code and logs
 update mailmap
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 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/vivier2/tags/trivial-branch-pull-request' into staging

Fix memory leak with fdt
cosmetic change in code and logs
update mailmap

# gpg: Signature made Wed 19 Feb 2020 10:15:56 GMT
# gpg:                using RSA key CD2F75DDC8E3A4DC2E4F5173F30C38BD3F2FBE3C
# gpg:                issuer "laurent@vivier.eu"
# gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>" [full]
# gpg:                 aka "Laurent Vivier <laurent@vivier.eu>" [full]
# gpg:                 aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>" [full]
# Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F  5173 F30C 38BD 3F2F BE3C

* remotes/vivier2/tags/trivial-branch-pull-request:
  hw/xtensa/xtfpga:fix leak of fdevice tree blob
  hw/nios2:fix leak of fdevice tree blob
  hw/net/rocker: Report unimplemented feature with qemu_log_mask(UNIMP)
  hw/block/pflash_cfi02: Remove unneeded variable assignment
  hw/display/qxl: Remove unneeded variable assignment
  contrib/rdmacm-mux: Remove superfluous semicolon
  tests/qtest/libqos/qgraph: Remove superfluous semicolons
  target/i386/whpx: Remove superfluous semicolon
  ui/input-barrier: Remove superfluous semicolon
  hw/vfio/display: Remove superfluous semicolon
  hw/scsi/esp: Remove superfluous semicolon
  hw/m68k/next-cube: Remove superfluous semicolon
  hw/arm/xlnx-versal: Remove superfluous semicolon
  audio/alsaaudio: Remove superfluous semicolons
  scripts/checkpatch.pl: Detect superfluous semicolon in C code
  Report stringified errno in VFIO related errors
  mailmap: Add entry for Yu-Chen Lin

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-02-20 16:51:19 +00:00
Philippe Mathieu-Daudé
85eb7c18ee Let cpu_[physical]_memory() calls pass a boolean 'is_write' argument
Use an explicit boolean type.

This commit was produced with the included Coccinelle script
scripts/coccinelle/exec_rw_const.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2020-02-20 14:47:08 +01:00
Philippe Mathieu-Daudé
0eeef0a4d3 Remove unnecessary cast when using the cpu_[physical]_memory API
This commit was produced with the included Coccinelle script
scripts/coccinelle/exec_rw_const.

Suggested-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2020-02-20 14:47:08 +01:00
Philippe Mathieu-Daudé
eb9b2ee8f6 hw/display/artist: Remove dead code (CID 1419388 & 1419389)
Coverity reports:

  *** CID 1419388:  Control flow issues  (DEADCODE)
  /hw/display/artist.c: 739 in draw_line_xy()
  733         if (endy < 0) {
  734             endy = 0;
  735         }
  736
  737
  738         if (endx < 0) {
  >>>     CID 1419388:  Control flow issues  (DEADCODE)
  >>>     Execution cannot reach this statement: "return;".
  739             return;
  740         }
  741
  742         if (endy < 0) {
  743             return;
  744         }

  *** CID 1419389:  Control flow issues  (DEADCODE)
  /hw/display/artist.c: 743 in draw_line_xy()
  737
  738         if (endx < 0) {
  739             return;
  740         }
  741
  742         if (endy < 0) {
  >>>     CID 1419389:  Control flow issues  (DEADCODE)
  >>>     Execution cannot reach this statement: "return;".
  743             return;
  744         }
  745
  746         trace_artist_draw_line(startx, starty, endx, endy);
  747         draw_line(s, startx, starty, endx, endy, false, -1, -1);
  748     }

Fixes: Covertiy CID 1419388 and 1419389 (commit 4765384ce3)
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: Sven Schnelle <svens@stackframe.org>
Message-Id: <20200214001303.12873-6-f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-02-18 11:21:47 -08:00
Philippe Mathieu-Daudé
b0f6455fea hw/display/artist: Avoid drawing line when nothing to display
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20200214001303.12873-5-f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-02-18 11:21:47 -08:00
Philippe Mathieu-Daudé
0814343ce2 hw/display/artist: Delay some variables initialization
We want to have an early exit path. Delay some initializations
before the variables are used.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: Sven Schnelle <svens@stackframe.org>
Message-Id: <20200214001303.12873-4-f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-02-18 11:21:47 -08:00
Philippe Mathieu-Daudé
6c69f9c48e hw/display/artist: Remove pointless initialization
We are initializating incy inconditionally:

    if (y1 <= y2) {
        incy = 1;
    } else {
        incy = -1;
    }

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: Sven Schnelle <svens@stackframe.org>
Message-Id: <20200214001303.12873-3-f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-02-18 11:21:47 -08:00
Philippe Mathieu-Daudé
5646bca36e hw/display/artist: Move trace event to draw_line()
Instead of emitting the trace event before each call to
draw_line(), call it once at draw_line() entrance.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: Sven Schnelle <svens@stackframe.org>
Message-Id: <20200214001303.12873-2-f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-02-18 11:21:47 -08:00
Philippe Mathieu-Daudé
380e6d8119 hw/display/qxl: Remove unneeded variable assignment
Fix warning reported by Clang static code analyzer:

  hw/display/qxl.c:1634:14: warning: Value stored to 'orig_io_port' during its initialization is never read
      uint32_t orig_io_port = io_port;
               ^~~~~~~~~~~~   ~~~~~~~

Reported-by: Clang Static Analyzer
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200215161557.4077-3-philmd@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-02-18 20:20:49 +01:00
Gerd Hoffmann
ed71c09ffd qxl: introduce hardware revision 5
The only difference to hardware revision 4 is that the device doesn't
switch to VGA mode in case someone happens to touch a VGA register,
which should make things more robust in configurations with multiple
vga devices.

Swtiching back to VGA mode happens on reset, either full machine
reset or qxl device reset (QXL_IO_RESET ioport command).

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-id: 20200206074358.4274-1-kraxel@redhat.com
2020-02-13 08:31:40 +01:00
Thomas Huth
3ab5a6ece5 hw/*/Makefile.objs: Move many .o files to common-objs
We have many files that apparently do not depend on the target CPU
configuration, i.e. which can be put into common-obj-y instead of
obj-y. This way, the code can be shared for example between
qemu-system-arm and qemu-system-aarch64, or the various big and
little endian variants like qemu-system-sh4 and qemu-system-sh4eb,
so that we do not have to compile the code multiple times anymore.

Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20200130133841.10779-1-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2020-02-04 09:00:57 +01:00
Peter Maydell
d4aceb2eb7 hw/display/qxl.c: Use trace_event_get_state_backends()
The preferred way to test whether a trace event is enabled is to
use trace_event_get_state_backends(), because this will give the
correct answer (allowing expensive computations to be skipped)
whether the trace event is compile-time or run-time disabled.
Convert the old-style direct use of TRACE_FOO_ENABLED.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20200120151142.18954-4-peter.maydell@linaro.org
Message-Id: <20200120151142.18954-4-peter.maydell@linaro.org>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2020-01-30 21:33:50 +00:00
Sven Schnelle
4765384ce3 hppa: Add emulation of Artist graphics
This adds emulation of Artist graphics good enough to get a text
console on both Linux and HP-UX. The X11 server from HP-UX also works.

Adjust boot-serial-test to disable graphics, so that SeaBIOS outputs
to the serial port, as expected by the test.

Signed-off-by: Sven Schnelle <svens@stackframe.org>
Message-Id: <20191220211512.3289-6-svens@stackframe.org>
[rth: Merge Helge's test for machine->enable_graphics]
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-01-27 10:49:51 -08:00
Marc-André Lureau
4f67d30b5e qdev: set properties with device_class_set_props()
The following patch will need to handle properties registration during
class_init time. Let's use a device_class_set_props() setter.

spatch --macro-file scripts/cocci-macro-file.h  --sp-file
./scripts/coccinelle/qdev-set-props.cocci --keep-comments --in-place
--dir .

@@
typedef DeviceClass;
DeviceClass *d;
expression val;
@@
- d->props = val
+ device_class_set_props(d, val)

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20200110153039.1379601-20-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-01-24 20:59:15 +01:00
Philippe Mathieu-Daudé
ada4406516 hw/display/tcx: Add missing fall through comments
When building with GCC9 using CFLAG -Wimplicit-fallthrough=2 we get:

  hw/display/tcx.c: In function ‘tcx_dac_writel’:
  hw/display/tcx.c:453:26: error: this statement may fall through [-Werror=implicit-fallthrough=]
    453 |             s->dac_index = (s->dac_index + 1) & 0xff; /* Index autoincrement */
        |             ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
  hw/display/tcx.c:454:9: note: here
    454 |         default:
        |         ^~~~~~~
  hw/display/tcx.c: In function ‘tcx_dac_readl’:
  hw/display/tcx.c:412:22: error: this statement may fall through [-Werror=implicit-fallthrough=]
    412 |         s->dac_index = (s->dac_index + 1) & 0xff; /* Index autoincrement */
        |         ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
  hw/display/tcx.c:413:5: note: here
    413 |     default:
        |     ^~~~~~~
  cc1: all warnings being treated as errors

Give a hint to GCC by adding the missing fall through comments.

Fixes: 55d7bfe22
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <20191218192526.13845-3-philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-01-24 20:59:07 +01:00
Peter Xu
1df2c9a26f migration: Define VMSTATE_INSTANCE_ID_ANY
Define the new macro VMSTATE_INSTANCE_ID_ANY for callers who wants to
auto-generate the vmstate instance ID.  Previously it was hard coded
as -1 instead of this macro.  It helps to change this default value in
the follow up patches.  No functional change.

Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2020-01-20 09:10:23 +01:00
Marc-André Lureau
0ed40f16a1 sm501: make SerialMM a child, export chardev property
Embed the SerialMM sybus device, and re-export its "chardev" property.
That way, we can get rid of PROP_PTR "chr-state" and better track
devices relationship.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
2020-01-07 17:24:29 +04:00
Philippe Mathieu-Daudé
7aca3782d9 hw/display/sm501: Always map the UART0
The SM501 is a Mobile Multimedia Companion Chip with 2 UARTs.
This model only implements the first UART. Being part of the
chipset, the UART block is always mapped in memory, regardless
of whether we provide a chardev backend.

Since commit 12051d82f, qemu_chr_fe_init() accepts a NULL chardev.
Let's remove the chardev check and always map the UART in the
chipset memory.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20191122133623.13004-1-philmd@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
2020-01-07 16:06:59 +04:00
Peter Maydell
81e6a7345a console: screendump improvements
Hi,
 
 The following patches have been extracted from the "[PATCH v6 00/25]
 monitor: add asynchronous command type", as they are
 reviewable/mergeable independantly.
 
 They introduce some internal API changes, and fix
 qemu_open()/qemu_close()/unlink() misusages which should be quite
 harmless.
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 =aSgS
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/elmarco/tags/screendump-pull-request' into staging

console: screendump improvements

Hi,

The following patches have been extracted from the "[PATCH v6 00/25]
monitor: add asynchronous command type", as they are
reviewable/mergeable independantly.

They introduce some internal API changes, and fix
qemu_open()/qemu_close()/unlink() misusages which should be quite
harmless.

# gpg: Signature made Fri 03 Jan 2020 09:07:51 GMT
# gpg:                using RSA key 87A9BD933F87C606D276F62DDAE8E10975969CE5
# gpg:                issuer "marcandre.lureau@redhat.com"
# gpg: Good signature from "Marc-André Lureau <marcandre.lureau@redhat.com>" [full]
# gpg:                 aka "Marc-André Lureau <marcandre.lureau@gmail.com>" [full]
# Primary key fingerprint: 87A9 BD93 3F87 C606 D276  F62D DAE8 E109 7596 9CE5

* remotes/elmarco/tags/screendump-pull-request:
  screendump: use qemu_unlink()
  osdep: add qemu_unlink()
  screendump: replace FILE with QIOChannel and fix close()/qemu_close()
  object: add g_autoptr support
  ui: add pixman image g_autoptr support
  ppm-save: pass opened fd
  console: add graphic_hw_update_done()

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-01-06 14:51:51 +00:00
Peter Maydell
4affd48bfe vga: two little bugfixes.
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 =+HfT
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/kraxel/tags/vga-20191220-pull-request' into staging

vga: two little bugfixes.

# gpg: Signature made Fri 20 Dec 2019 06:06:04 GMT
# gpg:                using RSA key 4CB6D8EED3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>" [full]
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>" [full]
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>" [full]
# Primary key fingerprint: A032 8CFF B93A 17A7 9901  FE7D 4CB6 D8EE D3E8 7138

* remotes/kraxel/tags/vga-20191220-pull-request:
  display/bochs-display: fix memory leak
  vhost-user-gpu: Drop trailing json comma

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-01-03 14:29:42 +00:00
Marc-André Lureau
4d6316218b console: add graphic_hw_update_done()
Add a function to be called when a graphic update is done.

Declare the QXL renderer as async: render_update_cookie_num counts the
number of outstanding updates, and graphic_hw_update_done() is called
when it reaches none.

(note: this is preliminary work for asynchronous screendump support)

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2020-01-02 13:54:57 +04:00
Cameron Esfahani
0d82411d0e display/bochs-display: fix memory leak
Fix memory leak in bochs_display_update().  Leaks 304 bytes per frame.

Fixes: 33ebad5405
Signed-off-by: Cameron Esfahani <dirty@apple.com>
Message-Id: <d6c26e68db134c7b0c7ce8b61596ca2e65e01e12.1576013209.git.dirty@apple.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-12-20 07:05:46 +01:00
Paolo Bonzini
e2328a11bd vga: cleanup mapping of VRAM for non-PCI VGA
vga_init_vbe is now used only from ISA VGA cards.  Since the alias is
not needed anymore, remove it (effectively reverting commit 8294a64d7f,
"vga: fix vram double-mapping with -vga std and -M pc-0.12", 2012-05-29)
and the now unused vbe_mapped field of VGACommonState.  The function now
consists of a single memory_region_add_subregion call, so we can inline
it; this avoids incorrect usage from PCI cards.

Suggested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Based-on: <05af415a-5058-98b4-4a12-9d093a30b1e3@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-12-18 02:34:13 +01:00
Thomas Huth
97d8381543 hw/display: Remove "rombar" hack from vga-pci and vmware_vga
Now that the old pc-0.x machine types have been removed, we do not need
the old "rombar" hacks anymore.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20191209125248.5849-5-thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-12-18 02:34:12 +01:00
Filip Bozuta
68fa5f552a mips: jazz: Renovate coding style
The script checkpatch.pl located in scripts folder was
used to detect all errors and warrnings in files:
    hw/mips/mips_jazz.c
    hw/display/jazz_led.c
    hw/dma/rc4030.c

All these mips jazz machine files were edited and
all the errors and warrings generated by the checkpatch.pl
script were corrected and then the script was
ran again to make sure there are no more errors and warnings.

Signed-off-by: Filip Bozuta <Filip.Bozuta@rt-rk.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Message-Id: <1575640687-20744-2-git-send-email-Filip.Bozuta@rt-rk.com>
2019-12-16 13:04:46 +01:00
Sai Pavan Boddu
0f6ed883e7 display: xlnx_dp: Provide sufficient bytes for silent audio channel
Fill the audio channel with required number of bytes to cover the
elapsed time. This prevents rate control reset, and avoids debug prints
like below

log:
	Resetting rate control (65692 samples)
	...
	Resetting rate control (65721 samples)
	...

Signed-off-by: Sai Pavan Boddu <sai.pavan.boddu@xilinx.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 1573833408-2388-1-git-send-email-sai.pavan.boddu@xilinx.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-11-21 07:12:28 +01:00
Laurent Vivier
8ac919a065 hw/m68k: add Nubus macfb video card
This patch adds support for a graphic framebuffer device.
This device can be added as a sysbus device or as a NuBus device.

It is accessed as a framebuffer but the color palette can be set.

Co-developed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Hervé Poussineau <hpoussin@reactos.org>
Reviewed-by: Thomas Huth <huth@tuxfamily.org>
Message-Id: <20191026164546.30020-9-laurent@vivier.eu>
2019-10-28 19:06:49 +01:00