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Because they are supposed to remain const.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20181114132931.22624-1-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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The cirrus bank0/1 offset should be updated before we update the vram's alias
offset.
Signed-off-by: Wang Xin <wangxinxin.wang@huawei.com>
Message-id: 20181123064646.23036-1-linzhecheng@huawei.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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Simplify the code that doesn't need strncpy() since length of string
is already computed.
/home/elmarco/src/qemu/hw/display/edid-generate.c: In function 'edid_desc_text':
/home/elmarco/src/qemu/hw/display/edid-generate.c:168:5: error: 'strncpy' specified bound depends on the length of the source argument [-Werror=stringop-overflow=]
strncpy((char *)(desc + 5), text, len);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/elmarco/src/qemu/hw/display/edid-generate.c:164:11: note: length computed here
len = strlen(text);
^~~~~~~~~~~~
cc1: all warnings being treated as errors
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-id: 20181110111623.31356-1-marcandre.lureau@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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into staging
vga: two fixes.
# gpg: Signature made Mon 29 Oct 2018 12:46:20 GMT
# gpg: using RSA key 4CB6D8EED3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg: aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg: aka "Gerd Hoffmann (private) <kraxel@gmail.com>"
# Primary key fingerprint: A032 8CFF B93A 17A7 9901 FE7D 4CB6 D8EE D3E8 7138
* remotes/kraxel/tags/vga-20181029-pull-request:
vga_int: remove unused function protype
qxl: store channel id in qxl->id
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Signed-off-by: yuchenlin <yuchenlin@synology.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20181022080053.9379-1-yuchenlin@synology.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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See qemu_spice_add_display_interface(), the console index is also used
as channel id. So put that into the qxl->id field too.
In typical use cases (one primary qxl-vga device, optionally one or more
secondary qxl devices, no non-qxl display devices) this doesn't change
anything.
With this in place the qxl->id can not be used any more to figure
whenever a given device is primary (with vga compat mode) or secondary.
So add a bool to track this.
Cc: spice-devel@lists.freedesktop.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20181012114540.27829-1-kraxel@redhat.com
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Calling error_report() in a function that takes an Error ** argument
is suspicious. Convert a few that are actually warnings to
warn_report().
While there, split a warning consisting of multiple sentences to
conform to conventions spelled out in warn_report()'s contract.
Cc: Alex Bennée <alex.bennee@linaro.org>
Cc: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Cc: Alex Williamson <alex.williamson@redhat.com>
Cc: Fam Zheng <famz@redhat.com>
Cc: Wei Huang <wei@redhat.com>
Cc: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20181017082702.5581-5-armbru@redhat.com>
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In downstream distros like RHEL we'd like to disable some of the "legacy"
devices of QEMU. The ISA version of the Cirrus VGA device is one of these
legacy devices. So let's make the build process a little bit more flexible
here by putting the Cirrus ISA code into a separate file which is only
included if both, CONFIG_VGA_CIRRUS and CONFIG_VGA_ISA are set.
Note that this disables "isa-cirrus-vga" for the ppc-softmmu and the
alpha-softmmu target since CONFIG_VGA_ISA is not set there. But I think
this is OK since these targets are only interested in the PCI variant
anyway.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-id: 1539339106-32427-1-git-send-email-thuth@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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Fixes: CID 1395986
Fixes: 979f7ef8966bc4495a710ed9e4af42098f92ee79
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20181005134608.1251-1-kraxel@redhat.com
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Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20181005160147.892-3-kraxel@redhat.com
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This allows modern architectures which don't care about vga
compatibility (risc-v for example) build bochs-display without
including all vga emulation too.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20181005160147.892-2-kraxel@redhat.com
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Use stl_le_p() & friends instead of casts.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20181015055333.32030-1-kraxel@redhat.com
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Coverity complains (CID 1395628) that the multiply in the calculation
of the framebuffer base is performed as 32x32 but then used in a
context that takes a 64-bit hwaddr. This can't actually ever
overflow the 32-bit result, because of the constraints placed on
the s->config values in bcm2835_fb_validate_config(). But we
can placate Coverity anyway, by explicitly casting one of the
inputs to a hwaddr, so the whole expression is calculated with
64-bit arithmetic.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 20181005133012.26490-1-peter.maydell@linaro.org
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"EMU" actually is "Emulex Corporation", so not a good idea to use that
by default. Lets use the Red Hat vendor id instead, which is in line
with the pci ids which are allocated from Red Hat vendor ids too.
Vendor list is available from http://www.uefi.org/pnp_id_list
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20181005091934.12143-1-kraxel@redhat.com
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93abfc88bd649de1933588bfc7175605331b3ea9 introduced a reference cycle in
the vga-pci devices, preventing cleanup of the object upon hotblug.
This patch allows to break the cycle.
Signed-off-by: remy.noel <remy.noel@blade-group.com>
Message-id: 20181002121935.23706-1-remy.noel@blade-group.com
[ kraxel: delete the recently added edid region too ]
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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If QEMU is compiled with clang-7 it results in the warning:
hw/display/qxl.c:1884:19: error: misaligned or large atomic operation
may incur significant performance penalty [-Werror,-Watomic-alignment]
old_pending = atomic_fetch_or(&d->ram->int_pending, le_events);
^
This is because the Spice headers forgot to define the QXLRam struct
with the '__aligned__(4)' attribute. clang 7 and newer will thus
warn that the access here to int_pending might not be 4-aligned
(because the QXLRam object d->ram points at might start at a
misaligned address). In fact we set up d->ram in init_qxl_ram() so
it always starts at a 4K boundary, so we know the atomic access here
is OK.
Newer Spice versions (with Spice commit
beda5ec7a6848be20c0cac2a9a8ef2a41e8069c1) will fix the bug;
for older Spice versions, work around it by telling the compiler
explicitly that the alignment is OK using __builtin_assume_aligned().
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20180927155538.699-1-peter.maydell@linaro.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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Monochrome cursors are still used by Windows guests with the
QXL-WDDM-DOD driver. Such cursor types have one odd feature, inversion
of colors. GDK does not seem to support it, so implement an alternative
solution: fill the inverted pixels and add an outline to make the cursor
more visible. Tested with the text cursor in Notepad and Windows 10.
cursor_set_mono is also used by the vmware GPU, so add a special check
to avoid breaking its 32bpp format (tested with Kubuntu 14.04.4). I was
unable to find a guest which supports the 1bpp format with a vmware GPU.
The old implementation was buggy and removed in v2.10.0-108-g79c5a10cdd
("qxl: drop mono cursor support"), this version improves upon that by
adding bounds validation, clarifying the semantics of the two masks and
adds a workaround for inverted colors support.
Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1611984
Signed-off-by: Peter Wu <peter@lekensteyn.nl>
Message-id: 20180903145447.17142-1-peter@lekensteyn.nl
[ kraxel: minor codestyle fix ]
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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When processing monitor config from guest store head0 width and height
for single-head configurations. Use these when creating the
DisplaySurface in the local renderer.
This fixes a rendering issue with wayland. Wayland rounds up the
framebuffer width and height to a multiple of 64, so with odd
resolutions (800x600 for example) the framebuffer is larger than the
actual screen. The monitor config has the actual screen size though.
This fixes guest display for anything using the local renderer
(non-spice UI, screendump monitor command).
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-id: 20180919103057.9666-1-kraxel@redhat.com
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This patch adds edid support to the qemu stdvga. It is turned off by
default and can be enabled with the new edid property. The patch also
adds xres and yres properties to specify the video mode you want the
guest use. Works only with edid enabled and updated guest driver.
The mmio bar of the stdvga has some unused address space at the start.
It was reserved just in case it'll be needed for virtio, but it turned
out to not be needed for that. So let's use that region to place the
EDID data block there.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20180925075646.25114-6-kraxel@redhat.com
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Create a io region for an EDID data block.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20180925075646.25114-4-kraxel@redhat.com
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Helper function to figure the size of a edid blob, by checking how many
extensions are present. Both the base edid blob and the extensions are
128 bytes in size.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20180925075646.25114-3-kraxel@redhat.com
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EDID is a metadata format to describe monitors. On physical hardware
the monitor has an eeprom with that data block which can be read over
i2c bus.
On a linux system you can usually find the EDID data block in
/sys/class/drm/$card/$connector/edid. xorg ships a edid-decode utility
which you can use to turn the blob into readable form.
I think it would be a good idea to use EDID for virtual displays too.
Needs changes in both qemu and guest kms drivers. This patch is the
first step, it adds an generator for EDID blobs to qemu. Comes with a
qemu-edid test tool included.
With EDID we can pass more information to the guest. Names and serial
numbers, so the guests display configuration has no boring "Unknown
Monitor". List of video modes. Display resolution, pretty important
in case we want add HiDPI support some day.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20180925075646.25114-2-kraxel@redhat.com
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The value from twoD_foreground (which is in host endian format) must
be converted to the endianness of the framebuffer (currently always
little endian) before it can be used to perform the fill operation.
Signed-off-by: Marcus Comstedt <marcus@mc.pp.se>
Reviewed-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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Switch from cpu_physical_memory_map to dma_memory_map,
so iommu mappings for virtio-gpu objects work properly.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-Id: <20180829122101.29852-3-kraxel@redhat.com>
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No functional change, just preparation for a followup patch
which needs a VirtIOGPU pointer.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-Id: <20180829122101.29852-2-kraxel@redhat.com>
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Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20180810132856.22833-1-kraxel@redhat.com
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This reverts commit 93f874fe9dbe0b997b5a9459840957efd13d7191.
Now with virtio-vga being resetted properly the
crash workaround is not needed any more.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-id: 20180821111313.27792-3-kraxel@redhat.com
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We must call the reset functions for both virtio-gpu
and vga to properly reset the combo device.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-id: 20180821111313.27792-2-kraxel@redhat.com
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Refactor bcm2835_fb_mbox_push() to work by calling
bcm2835_fb_validate_config() and bcm2835_fb_reconfigure(),
so that config set this way is also validated.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180814144436.679-9-peter.maydell@linaro.org
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Validate the config settings that the guest tries to set.
The wiki page documentation is not really accurate here:
generally rather than failing requests to set bad parameters,
the hardware will just clip them to something sensible.
Validate the most important parameters: sizes and
the viewport offsets. This prevents the framebuffer
code from trying to read out-of-range memory.
In the property handling code, we validate the new parameters every
time we encounter a tag that sets them. This means we validate the
config multiple times if the request includes multiple config-setting
tags, but the code would require significant restructuring to do a
validation only once but still return the clipped settings for
get-parameter tags and the buffer allocation tag.
Validation of settings made via the older bcm2835_fb_mbox_push()
function will be done in the next commit.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180814144436.679-8-peter.maydell@linaro.org
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The raspi framebuffir in bcm2835_fb supports the definition
of a virtual "viewport", which is smaller than the full
physical framebuffer size and at an adjustable offset within
it. Only the viewport area is sent to the screen. This allows
the guest to do things like double buffering, or scrolling
by adjusting the viewport origin. Currently QEMU doesn't
implement this at all.
Add support for this feature:
* the property mailbox code needs to distinguish the
virtual width/height from the physical width/height
* the framebuffer code needs to do something with the
virtual width/height/origin information
Note that the wiki documentation on the semantics of the
virtual and physical height and width has it the wrong way
around -- the virtual size is the size of the allocated
buffer, and the physical size is the size of the display,
so the virtual size is always the same as or larger than
the physical.
If the viewport size is set smaller than the physical
screen size, we ignore the viewport settings completely
and just display the physical screen area.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180814144436.679-7-peter.maydell@linaro.org
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Abstract out the calculation of the pitch and size of the
framebuffer into functions that operate on the BCM2835FBConfig
struct -- these are about to get a little more complicated
when we add support for virtual and physical sizes differing.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180814144436.679-6-peter.maydell@linaro.org
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The bcm2835_fb's initial resolution and other parameters are set
via QOM properties. We should reset to those initial values on
device reset, which means we need to save the QOM property
values somewhere that they are not overwritten by guest
changes to the framebuffer configuration.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180814144436.679-5-peter.maydell@linaro.org
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The BCM2835FBState struct has a 'pitch' field which is a
cached copy of xres * (bpp >> 3), and a 'size' field which is
a cached copy of pitch * yres. However we don't actually do
anything with these fields; delete them. We retain the
now-unused slots in the VMState struct for migration
compatibility.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180814144436.679-4-peter.maydell@linaro.org
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Refactor the fb property setting code so that rather than
using a set of pointers to local variables to track
whether a config value has been updated in the current
mbox and if so what its new value is, we just copy
all the current settings of the fb at the start, and
then update that copy as we go along, before asking
the fb to switch to it at the end.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180814144436.679-3-peter.maydell@linaro.org
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The handling of framebuffer properties in the bcm2835_property code
is a bit clumsy, because for each of the many fb related properties
we try to track the value we're about to set and whether we're going
to be setting a value, and then we hand all the new values off
to the framebuffer via a function which takes them all as separate
arguments. It would be simpler if the property code could easily
copy all the framebuffer's current settings, update them with
the new specified values and then ask the framebuffer to switch
to the new set.
As the first part of this refactoring, pull all the fb config
settings fields in BCM2835FBState out into their own struct.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180814144436.679-2-peter.maydell@linaro.org
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* x86 TCG fixes for 64-bit call gates (Andrew)
* qumu-guest-agent freeze-hook tweak (Christian)
* pm_smbus improvements (Corey)
* Move validation to pre_plug for pc-dimm (David)
* Fix memory leaks (Eduardo, Marc-André)
* synchronization profiler (Emilio)
* Convert the CPU list to RCU (Emilio)
* LSI support for PPR Extended Message (George)
* vhost-scsi support for protection information (Greg)
* Mark mptsas as a storage device in the help (Guenter)
* checkpatch tweak cherry-picked from Linux (me)
* Typos, cleanups and dead-code removal (Julia, Marc-André)
* qemu-pr-helper support for old libmultipath (Murilo)
* Annotate fallthroughs (me)
* MemoryRegionOps cleanup (me, Peter)
* Make s390 qtests independent from libqos, which doesn't actually support it (me)
* Make cpu_get_ticks independent from BQL (me)
* Introspection fixes (Thomas)
* Support QEMU_MODULE_DIR environment variable (ryang)
# gpg: Signature made Thu 23 Aug 2018 17:46:30 BST
# gpg: using RSA key BFFBD25F78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>"
# gpg: aka "Paolo Bonzini <pbonzini@redhat.com>"
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4 E2F7 7E15 100C CD36 69B1
# Subkey fingerprint: F133 3857 4B66 2389 866C 7682 BFFB D25F 78C7 AE83
* remotes/bonzini/tags/for-upstream: (69 commits)
KVM: cleanup unnecessary #ifdef KVM_CAP_...
target/i386: update MPX flags when CPL changes
i2c: pm_smbus: Add the ability to force block transfer enable
i2c: pm_smbus: Don't delay host status register busy bit when interrupts are enabled
i2c: pm_smbus: Add interrupt handling
i2c: pm_smbus: Add block transfer capability
i2c: pm_smbus: Make the I2C block read command read-only
i2c: pm_smbus: Fix the semantics of block I2C transfers
i2c: pm_smbus: Clean up some style issues
pc-dimm: assign and verify the "addr" property during pre_plug
pc: drop memory region alignment check for 0
util/oslib-win32: indicate alignment for qemu_anon_ram_alloc()
pc-dimm: assign and verify the "slot" property during pre_plug
ipmi: Use proper struct reference for BT vmstate
vhost-scsi: expose 't10_pi' property for VIRTIO_SCSI_F_T10_PI
vhost-scsi: unify vhost-scsi get_features implementations
vhost-user-scsi: move host_features into VHostSCSICommon
cpus: allow cpu_get_ticks out of BQL
cpus: protect TimerState writes with a spinlock
seqlock: add QemuLockable support
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Many of these are marked as "intentional/fix required" because they
just need adding a fall through comment. This is exactly what this
patch does, except for target/mips/translate.c where it is easier to
duplicate the code, and hw/audio/sb16.c where I consulted the DOSBox
sources and decide to just remove the LOG_UNIMP before the fallthrough.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Convert the vga-isa-mm device away from the old_mmio
MemoryRegion accessors.
This device is only used by the MIPS 'jazz' boards
"magnum" and "pica61".
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Hervé Poussineau <hpoussin@reactos.org>
Tested-by: Hervé Poussineau <hpoussin@reactos.org>
Message-id: 20180802155147.1863-2-peter.maydell@linaro.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20180810132236.25908-1-kraxel@redhat.com
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According to the ramfb_setup() function, the ramfb device needs fw_cfg
with DMA, so we should also only compile and link it into those targets
which support it, to avoid that the device shows up on systems where it
can not be used at all (e.g. s390x).
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-id: 1534786083-26559-1-git-send-email-thuth@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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With vga=775 on the Linux command line a first boot of the VM running
Linux works fine. After a warm reboot it crashes during Linux boot.
Before that, valgrind points out bad memory write to console
surface. The VGA code is not aware that virtio-gpu got a message
surface scanout when the display is disabled. Let's reset VGA graphic
mode when it is the case, so that a new display surface is created
when doing further VGA operations.
https://bugs.launchpad.net/qemu/+bug/1784900/
Reported-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Tested-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Message-id: 20180803153235.4134-1-marcandre.lureau@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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aux_create_slave() calls qdev_init_nofail() which in turn "realizes"
the corresponding object. This is unlike qdev_create(), and it is wrong
because qdev_init_nofail() must not be called from an instance_init
function. Move qdev_init_nofail() and the subsequent aux_map_slave into
the caller's realize function.
There are two more bugs that needs to be fixed here, too, where the
objects are created but not added as children. Therefore when
you call object_unparent on them, nothing happens.
In particular dpcd and edid give you an infinite loop in bus_unparent,
because device_unparent is not called and does not remove them from
the list of devices on the bus.
Reported-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-id: 1531745974-17187-17-git-send-email-thuth@redhat.com
[thuth: Added Paolo's fixup for the dpcd and edid unparenting]
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Coverity warned that the false arm of conditional expression is
unreachable when it is inside an if with the same condition.
Remove the unreachable code to avoid the warning.
Fixes: CID 1394215
Reported-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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When the guest changes the address of the frame buffer we need to
refresh the screen to correctly display the new content. This fixes
display update problems when changing between screens on AmigaOS.
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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Set the changed memory region dirty after performed a 2D operation to
ensure that the screen is updated properly.
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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Display updates and drawing hardware cursor did not work when frame
buffer address was non-zero. Fix this by taking the frame buffer
address into account in these cases. This fixes screen dragging on
AmigaOS. Based on patch by Sebastian Bauer.
Signed-off-by: Sebastian Bauer <mail@sebastianbauer.info>
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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The sm501 currently implements only a very limited set of raster operation
modes. After this change, unknown raster operation modes are logged so
these can be easily spotted.
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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Add support for the negated destination operation mode. This is used e.g.
by AmigaOS for the INVERSEVID drawing mode. With this change, the cursor
in the shell and non-immediate window adjustment are working now.
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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Before, crt_h_total was used for src_width and dst_width. This is a
property of the current display setting and not relevant for the 2D
operation that also can be done off-screen. The pitch register's purpose
is to describe line pitch relevant of the 2D operation.
Signed-off-by: Sebastian Bauer <mail@sebastianbauer.info>
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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