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Move the I8257 macro to i8257.h, close to the TYPE_I8257 define.
This will make future conversion to OBJECT_DECLARE* easier.
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Tested-By: Roman Bolshakov <r.bolshakov@yadro.com>
Message-Id: <20200825192110.3528606-32-ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
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Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Meson doesn't enjoy the same flexibility we have with Make in choosing
the include path. In particular the tracing headers are using
$(build_root)/$(<D).
In order to keep the include directives unchanged,
the simplest solution is to generate headers with patterns like
"trace/trace-audio.h" and place forwarding headers in the source tree
such that for example "audio/trace.h" includes "trace/trace-audio.h".
This patch is too ugly to be applied to the Makefiles now. It's only
a way to separate the changes to the tracing header files from the
Meson rewrite of the tracing logic.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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nd_table[] contains NIC configuration for boards to pick up. Device
code has no business looking there. Several devices do it anyway.
Two of them already have a suitable FIXME comment: "allwinner-a10" and
"msf2-soc". Copy it to the others: "allwinner-h3", "xlnx-versal",
"xlnx,zynqmp", "sparc32-ledma", "riscv.sifive.u.soc".
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20200715140440.3540942-3-armbru@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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The object_property_set_FOO() setters take property name and value in
an unusual order:
void object_property_set_FOO(Object *obj, FOO_TYPE value,
const char *name, Error **errp)
Having to pass value before name feels grating. Swap them.
Same for object_property_set(), object_property_get(), and
object_property_parse().
Convert callers with this Coccinelle script:
@@
identifier fun = {
object_property_get, object_property_parse, object_property_set_str,
object_property_set_link, object_property_set_bool,
object_property_set_int, object_property_set_uint, object_property_set,
object_property_set_qobject
};
expression obj, v, name, errp;
@@
- fun(obj, v, name, errp)
+ fun(obj, name, v, errp)
Chokes on hw/arm/musicpal.c's lcd_refresh() with the unhelpful error
message "no position information". Convert that one manually.
Fails to convert hw/arm/armsse.c, because Coccinelle gets confused by
ARMSSE being used both as typedef and function-like macro there.
Convert manually.
Fails to convert hw/rx/rx-gdbsim.c, because Coccinelle gets confused
by RXCPU being used both as typedef and function-like macro there.
Convert manually. The other files using RXCPU that way don't need
conversion.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20200707160613.848843-27-armbru@redhat.com>
[Straightforwad conflict with commit 2336172d9b "audio: set default
value for pcspk.iobase property" resolved]
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Don't handle object_property_get_link() failure that can't happen
unless the programmer screwed up, pass &error_abort.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200707160613.848843-25-armbru@redhat.com>
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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.
virtio_gpu_pci_base_realize(), virtio_vga_base_realize(),
sparc32_ledma_device_realize(), sparc32_dma_realize(),
sparc32_dma_realize() xilinx_axidma_realize(), mips_cps_realize(),
macio_realize_ide(), xilinx_enet_realize(), and
virtio_iommu_pci_realize() are wrong that way: they reuse the argument
they pass to object_property_set_link() for another call.
Harmless, because object_property_set_link() can't actually fail for
them: it fails when the property doesn't exist, is not settable, or
its .check() method fails. Fix by passing &error_abort instead.
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Cc: "Edgar E. Iglesias" <edgar.iglesias@gmail.com>
Cc: Alistair Francis <alistair@alistair23.me>
Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: qemu-arm@nongnu.org
Cc: Aleksandar Markovic <aleksandar.qemu.devel@gmail.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: Aleksandar Rikalo <aleksandar.rikalo@syrmia.com>
Cc: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20200630090351.1247703-16-armbru@redhat.com>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
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Convert from qdev_realize(), qdev_realize_and_unref() with null @bus
argument to sysbus_realize(), sysbus_realize_and_unref().
Coccinelle script:
@@
expression dev, errp;
@@
- qdev_realize(DEVICE(dev), NULL, errp);
+ sysbus_realize(SYS_BUS_DEVICE(dev), errp);
@@
expression sysbus_dev, dev, errp;
@@
+ sysbus_dev = SYS_BUS_DEVICE(dev);
- qdev_realize_and_unref(dev, NULL, errp);
+ sysbus_realize_and_unref(sysbus_dev, errp);
- sysbus_dev = SYS_BUS_DEVICE(dev);
@@
expression sysbus_dev, dev, errp;
expression expr;
@@
sysbus_dev = SYS_BUS_DEVICE(dev);
... when != dev = expr;
- qdev_realize_and_unref(dev, NULL, errp);
+ sysbus_realize_and_unref(sysbus_dev, errp);
@@
expression dev, errp;
@@
- qdev_realize_and_unref(DEVICE(dev), NULL, errp);
+ sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), errp);
@@
expression dev, errp;
@@
- qdev_realize_and_unref(dev, NULL, errp);
+ sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), errp);
Whitespace changes minimized manually.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20200610053247.1583243-46-armbru@redhat.com>
[Conflicts in hw/misc/empty_slot.c and hw/sparc/leon3.c resolved]
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All users of object_initialize_child() pass the obvious child size
argument. Almost all pass &error_abort and no properties. Tiresome.
Rename object_initialize_child() to
object_initialize_child_with_props() to free the name. New
convenience wrapper object_initialize_child() automates the size
argument, and passes &error_abort and no properties.
Rename object_initialize_childv() to
object_initialize_child_with_propsv() for consistency.
Convert callers with this Coccinelle script:
@@
expression parent, propname, type;
expression child, size;
symbol error_abort;
@@
- object_initialize_child(parent, propname, OBJECT(child), size, type, &error_abort, NULL)
+ object_initialize_child(parent, propname, child, size, type, &error_abort, NULL)
@@
expression parent, propname, type;
expression child;
symbol error_abort;
@@
- object_initialize_child(parent, propname, child, sizeof(*child), type, &error_abort, NULL)
+ object_initialize_child(parent, propname, child, type)
@@
expression parent, propname, type;
expression child;
symbol error_abort;
@@
- object_initialize_child(parent, propname, &child, sizeof(child), type, &error_abort, NULL)
+ object_initialize_child(parent, propname, &child, type)
@@
expression parent, propname, type;
expression child, size, err;
expression list props;
@@
- object_initialize_child(parent, propname, child, size, type, err, props)
+ object_initialize_child_with_props(parent, propname, child, size, type, err, props)
Note that Coccinelle chokes on ARMSSE typedef vs. macro in
hw/arm/armsse.c. Worked around by temporarily renaming the macro for
the spatch run.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
[Rebased: machine opentitan is new (commit fe0fe4735e7)]
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20200610053247.1583243-37-armbru@redhat.com>
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Replace
dev = isa_create(bus, type_name);
...
qdev_init_nofail(dev);
by
dev = isa_new(type_name);
...
isa_realize_and_unref(dev, bus, &error_fatal);
Recent commit "qdev: New qdev_new(), qdev_realize(), etc." explains
why.
Coccinelle script:
@@
expression dev, bus, expr;
expression list args;
expression d;
@@
- dev = isa_create(bus, args);
+ dev = isa_new(args);
(
d = &dev->qdev;
|
d = DEVICE(dev);
)
... when != dev = expr
- qdev_init_nofail(d);
+ isa_realize_and_unref(dev, bus, &error_fatal);
@@
expression dev, bus, expr;
expression list args;
@@
- dev = isa_create(bus, args);
+ dev = isa_new(args);
... when != dev = expr
- qdev_init_nofail(DEVICE(dev));
+ isa_realize_and_unref(dev, bus, &error_fatal);
@@
expression dev, bus, expr;
expression list args;
@@
- dev = DEVICE(isa_create(bus, args));
+ ISADevice *isa_dev; // TODO move
+ isa_dev = isa_new(args);
+ dev = DEVICE(isa_dev);
... when != dev = expr
- qdev_init_nofail(dev);
+ isa_realize_and_unref(isa_dev, bus, &error_fatal);
Missing #include "qapi/error.h" added manually, whitespace changes
minimized manually.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20200610053247.1583243-20-armbru@redhat.com>
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This is the transformation explained in the commit before previous.
Takes care of just one pattern that needs conversion. More to come in
this series.
Coccinelle script:
@ depends on !(file in "hw/arm/highbank.c")@
expression bus, type_name, dev, expr;
@@
- dev = qdev_create(bus, type_name);
+ dev = qdev_new(type_name);
... when != dev = expr
- qdev_init_nofail(dev);
+ qdev_realize_and_unref(dev, bus, &error_fatal);
@@
expression bus, type_name, dev, expr;
identifier DOWN;
@@
- dev = DOWN(qdev_create(bus, type_name));
+ dev = DOWN(qdev_new(type_name));
... when != dev = expr
- qdev_init_nofail(DEVICE(dev));
+ qdev_realize_and_unref(DEVICE(dev), bus, &error_fatal);
@@
expression bus, type_name, expr;
identifier dev;
@@
- DeviceState *dev = qdev_create(bus, type_name);
+ DeviceState *dev = qdev_new(type_name);
... when != dev = expr
- qdev_init_nofail(dev);
+ qdev_realize_and_unref(dev, bus, &error_fatal);
@@
expression bus, type_name, dev, expr, errp;
symbol true;
@@
- dev = qdev_create(bus, type_name);
+ dev = qdev_new(type_name);
... when != dev = expr
- object_property_set_bool(OBJECT(dev), true, "realized", errp);
+ qdev_realize_and_unref(dev, bus, errp);
@@
expression bus, type_name, expr, errp;
identifier dev;
symbol true;
@@
- DeviceState *dev = qdev_create(bus, type_name);
+ DeviceState *dev = qdev_new(type_name);
... when != dev = expr
- object_property_set_bool(OBJECT(dev), true, "realized", errp);
+ qdev_realize_and_unref(dev, bus, errp);
The first rule exempts hw/arm/highbank.c, because it matches along two
control flow paths there, with different @type_name. Covered by the
next commit's manual conversions.
Missing #include "qapi/error.h" added manually.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20200610053247.1583243-10-armbru@redhat.com>
[Conflicts in hw/misc/empty_slot.c and hw/sparc/leon3.c resolved]
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Replace some debug printf() calls by qemu_log_mask(LOG_GUEST_ERROR).
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20200524164503.11944-1-f4bug@amsat.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
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hw_error() calls exit(). This a bit overkill when we can log
the accesses as unimplemented or guest error.
When fuzzing the devices, we don't want the whole process to
exit. Replace some hw_error() calls by qemu_log_mask().
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20200518140309.5220-3-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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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>
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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]
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Uses of gchar * in qom/object.h:
* ObjectProperty member @name
Functions that take a property name argument all use char *. Change
the member to match.
* ObjectProperty member @type
Functions that take a property type argument or return it all use
char *. Change the member to match.
* ObjectProperty member @description
Functions that take a property description argument all use char *.
Change the member to match.
* object_resolve_path_component() parameter @part
Path components are property names. Most callers pass char *
arguments. Change the parameter to match. Adjust the few callers
that pass gchar * to pass char *.
* Return value of object_get_canonical_path_component(),
object_get_canonical_path()
Most callers convert their return values right back to char *.
Change the return value to match. Adjust the few callers where that
would add a conversion to gchar * to use char * instead.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20200505152926.18877-3-armbru@redhat.com>
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Add support for stream fragments.
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-Id: <20200506082513.18751-9-edgar.iglesias@gmail.com>
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Stream descriptor by descriptor from memory instead of
buffering entire packets before pushing. This enables
non-packet streaming clients to work and also lifts the
limitation that our internal DMA buffer needs to be able
to hold entire packets.
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-Id: <20200506082513.18751-8-edgar.iglesias@gmail.com>
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Some stream clients stream an endless stream of data while
other clients stream data in packets. Stream interfaces
usually have a way to signal the end of a packet or the
last beat of a transfer.
This adds an end-of-packet flag to the push interface.
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Francisco Iglesias <frasse.iglesias@gmail.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-Id: <20200506082513.18751-6-edgar.iglesias@gmail.com>
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Add DMA memory-region property to externally control what
address-space this DMA operates on.
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Francisco Iglesias <frasse.iglesias@gmail.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20200506082513.18751-5-edgar.iglesias@gmail.com>
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Fix descriptor loading from registers wrt host endianness.
Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Francisco Iglesias <frasse.iglesias@gmail.com>
Message-id: 20200404122718.25111-3-edgar.iglesias@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Fix descriptor loading from memory wrt host endianness.
Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Francisco Iglesias <frasse.iglesias@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20200404122718.25111-2-edgar.iglesias@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Reorganize the descriptor handling so that CUR_DSCR always
points to the next descriptor to be processed.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Francisco Iglesias <frasse.iglesias@gmail.com>
Message-id: 20200402134721.27863-6-edgar.iglesias@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Advance the descriptor address when stopping the channel.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Francisco Iglesias <frasse.iglesias@gmail.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20200402134721.27863-5-edgar.iglesias@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Clear DMA_DONE when halting the DMA channel.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Francisco Iglesias <frasse.iglesias@gmail.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20200402134721.27863-4-edgar.iglesias@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Populate DBG0.CMN_BUF_FREE so that SW can see some free space.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Francisco Iglesias <frasse.iglesias@gmail.com>
Message-id: 20200402134721.27863-3-edgar.iglesias@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Remove comment.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Francisco Iglesias <frasse.iglesias@gmail.com>
Message-id: 20200402134721.27863-2-edgar.iglesias@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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While working on the Tulip driver i tried to write some Teledisk images to
a floppy image which didn't work. Turned out that Teledisk checks the written
data by issuing a READ command to the FDC but running the DMA controller
in VERIFY mode. As we ignored the DMA request in that case, the DMA transfer
never finished, and Teledisk reported an error.
The i8257 spec says about verify transfers:
3) DMA verify, which does not actually involve the transfer of data. When an
8257 channel is in the DMA verify mode, it will respond the same as described
for transfer operations, except that no memory or I/O read/write control signals
will be generated.
Hervé proposed to remove all the dma_mode_ok stuff from fdc to have a more
clear boundary between DMA and FDC, so this patch also does that.
Suggested-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Reviewed-by: Hervé Poussineau <hpoussin@reactos.org>
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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>
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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>
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Description copied from Linux kernel commit from Gustavo A. R. Silva
(see [3]):
--v-- description start --v--
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to
declare variable-length types such as these ones is a flexible
array member [1], introduced in C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler
warning in case the flexible array does not occur last in the
structure, which will help us prevent some kind of undefined
behavior bugs from being unadvertenly introduced [2] to the
Linux codebase from now on.
--^-- description end --^--
Do the similar housekeeping in the QEMU codebase (which uses
C99 since commit 7be41675f7cb).
All these instances of code were found with the help of the
following Coccinelle script:
@@
identifier s, m, a;
type t, T;
@@
struct s {
...
t m;
- T a[0];
+ T a[];
};
@@
identifier s, m, a;
type t, T;
@@
struct s {
...
t m;
- T a[0];
+ T a[];
} QEMU_PACKED;
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=76497732932f
[3] https://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux.git/commit/?id=17642a2fbd2c1
Inspired-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Clang static code analyzer show warning:
hw/dma/xlnx-zdma.c:399:13: warning: Value stored to 'dst_type' is never read
dst_type = FIELD_EX32(s->dsc_dst.words[3], ZDMA_CH_DST_DSCR_WORD3,
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Chen Qun <kuhn.chenqun@huawei.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Francisco Iglesias <frasse.iglesias@gmail.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-Id: <20200302130715.29440-11-kuhn.chenqun@huawei.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
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The address_space_rw() function allows either reads or writes
depending on the is_write argument passed to it; this is useful
when the direction of the access is determined programmatically
(as for instance when handling the KVM_EXIT_MMIO exit reason).
Under the hood it just calls either address_space_write() or
address_space_read_full().
We also use it a lot with a constant is_write argument, though,
which has two issues:
* when reading "address_space_rw(..., 1)" this is less
immediately clear to the reader as being a write than
"address_space_write(...)"
* calling address_space_rw() bypasses the optimization
in address_space_read() that fast-paths reads of a
fixed length
This commit was produced with the included Coccinelle script
scripts/coccinelle/exec_rw_const.cocci.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <20200218112457.22712-1-peter.maydell@linaro.org>
[PMD: Update macvm_set_cr0() reported by Laurent Vivier]
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
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The 'is_write' argument is either 0 or 1.
Convert it to a boolean type.
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
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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>
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This commit was produced with the included Coccinelle script
scripts/coccinelle/exec_rw_const.
Two lines in hw/net/dp8393x.c that Coccinelle produced that
were over 80 characters were re-wrapped by hand.
Suggested-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
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TD (two dimensions) DMA mode did not work, because the xlen variable
has not been re-initialized before each additional ylen run through
in bcm2835_dma_update(). Fix it.
Signed-off-by: Rene Stange <rsta2@o2online.de>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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In TD (two dimensions) DMA mode ylen has to be increased by one after
reading it from the TXFR_LEN register, because a value of zero has to
result in one run through of the ylen loop. This has been tested on a
real Raspberry Pi 3 Model B+. In the previous implementation the ylen
loop was not passed at all for a value of zero.
Signed-off-by: Rene Stange <rsta2@o2online.de>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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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>
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* Register qdev properties as class properties (Marc-André)
* Cleanups (Philippe)
* virtio-scsi fix (Pan Nengyuan)
* Tweak Skylake-v3 model id (Kashyap)
* x86 UCODE_REV support and nested live migration fix (myself)
* Advisory mode for pvpanic (Zhenwei)
# gpg: Signature made Fri 24 Jan 2020 20:16:23 GMT
# gpg: using RSA key BFFBD25F78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
# gpg: aka "Paolo Bonzini <pbonzini@redhat.com>" [full]
# 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: (58 commits)
build-sys: clean up flags included in the linker command line
target/i386: Add the 'model-id' for Skylake -v3 CPU models
qdev: use object_property_help()
qapi/qmp: add ObjectPropertyInfo.default-value
qom: introduce object_property_help()
qom: simplify qmp_device_list_properties()
vl: print default value in object help
qdev: register properties as class properties
qdev: move instance properties to class properties
qdev: rename DeviceClass.props
qdev: set properties with device_class_set_props()
object: return self in object_ref()
object: release all props
object: add object_class_property_add_link()
object: express const link with link property
object: add direct link flag
object: rename link "child" to "target"
object: check strong flag with &
object: do not free class properties
object: add object_property_set_default
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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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>
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Replace debug logging code with tracing.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Message-id: 20200123052540.6132-2-linux@roeck-us.net
[PMM: tweak dmald/dmast trace events to fix OSX-only
format string complaint]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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The device remains non-user creatable since it is a sysbus device.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
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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>
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Switch the xilinx_axidma code away from bottom-half based ptimers to
the new transaction-based ptimer API. This just requires adding
begin/commit calls around the various places that modify the ptimer
state, and using the new ptimer_init() function to create the timer.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20191017132122.4402-4-peter.maydell@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Various address spaces from the BCM2835 are reported as
'anonymous' in memory tree:
(qemu) info mtree
address-space: anonymous
0000000000000000-000000000000008f (prio 0, i/o): bcm2835-mbox
0000000000000010-000000000000001f (prio 0, i/o): bcm2835-fb
0000000000000080-000000000000008f (prio 0, i/o): bcm2835-property
address-space: anonymous
0000000000000000-00000000ffffffff (prio 0, i/o): bcm2835-gpu
0000000000000000-000000003fffffff (prio 0, i/o): alias bcm2835-gpu-ram-alias[*] @ram 0000000000000000-000000003fffffff
0000000040000000-000000007fffffff (prio 0, i/o): alias bcm2835-gpu-ram-alias[*] @ram 0000000000000000-000000003fffffff
000000007e000000-000000007effffff (prio 1, i/o): alias bcm2835-peripherals @bcm2835-peripherals 0000000000000000-0000000000ffffff
0000000080000000-00000000bfffffff (prio 0, i/o): alias bcm2835-gpu-ram-alias[*] @ram 0000000000000000-000000003fffffff
00000000c0000000-00000000ffffffff (prio 0, i/o): alias bcm2835-gpu-ram-alias[*] @ram 0000000000000000-000000003fffffff
[...]
Since the address_space_init() function takes a 'name' argument,
set it to correctly describe each address space:
(qemu) info mtree
address-space: bcm2835-mbox-memory
0000000000000000-000000000000008f (prio 0, i/o): bcm2835-mbox
0000000000000010-000000000000001f (prio 0, i/o): bcm2835-fb
0000000000000080-000000000000008f (prio 0, i/o): bcm2835-property
address-space: bcm2835-fb-memory
0000000000000000-00000000ffffffff (prio 0, i/o): bcm2835-gpu
0000000000000000-000000003fffffff (prio 0, i/o): alias bcm2835-gpu-ram-alias[*] @ram 0000000000000000-000000003fffffff
0000000040000000-000000007fffffff (prio 0, i/o): alias bcm2835-gpu-ram-alias[*] @ram 0000000000000000-000000003fffffff
000000007e000000-000000007effffff (prio 1, i/o): alias bcm2835-peripherals @bcm2835-peripherals 0000000000000000-0000000000ffffff
0000000080000000-00000000bfffffff (prio 0, i/o): alias bcm2835-gpu-ram-alias[*] @ram 0000000000000000-000000003fffffff
00000000c0000000-00000000ffffffff (prio 0, i/o): alias bcm2835-gpu-ram-alias[*] @ram 0000000000000000-000000003fffffff
address-space: bcm2835-property-memory
0000000000000000-00000000ffffffff (prio 0, i/o): bcm2835-gpu
0000000000000000-000000003fffffff (prio 0, i/o): alias bcm2835-gpu-ram-alias[*] @ram 0000000000000000-000000003fffffff
0000000040000000-000000007fffffff (prio 0, i/o): alias bcm2835-gpu-ram-alias[*] @ram 0000000000000000-000000003fffffff
000000007e000000-000000007effffff (prio 1, i/o): alias bcm2835-peripherals @bcm2835-peripherals 0000000000000000-0000000000ffffff
0000000080000000-00000000bfffffff (prio 0, i/o): alias bcm2835-gpu-ram-alias[*] @ram 0000000000000000-000000003fffffff
00000000c0000000-00000000ffffffff (prio 0, i/o): alias bcm2835-gpu-ram-alias[*] @ram 0000000000000000-000000003fffffff
address-space: bcm2835-dma-memory
0000000000000000-00000000ffffffff (prio 0, i/o): bcm2835-gpu
0000000000000000-000000003fffffff (prio 0, i/o): alias bcm2835-gpu-ram-alias[*] @ram 0000000000000000-000000003fffffff
0000000040000000-000000007fffffff (prio 0, i/o): alias bcm2835-gpu-ram-alias[*] @ram 0000000000000000-000000003fffffff
000000007e000000-000000007effffff (prio 1, i/o): alias bcm2835-peripherals @bcm2835-peripherals 0000000000000000-0000000000ffffff
0000000080000000-00000000bfffffff (prio 0, i/o): alias bcm2835-gpu-ram-alias[*] @ram 0000000000000000-000000003fffffff
00000000c0000000-00000000ffffffff (prio 0, i/o): alias bcm2835-gpu-ram-alias[*] @ram 0000000000000000-000000003fffffff
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Cleber Rosa <crosa@redhat.com>
Message-id: 20190926173428.10713-4-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Various logging improvements as once:
- Use 0x prefix for hex numbers
- Display value written during write accesses
- Move some logs from GUEST_ERROR to UNIMP
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Cleber Rosa <crosa@redhat.com>
Message-id: 20190926173428.10713-3-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Currently the ptimer design uses a QEMU bottom-half as its
mechanism for calling back into the device model using the
ptimer when the timer has expired. Unfortunately this design
is fatally flawed, because it means that there is a lag
between the ptimer updating its own state and the device
callback function updating device state, and guest accesses
to device registers between the two can return inconsistent
device state.
We want to replace the bottom-half design with one where
the guest device's callback is called either immediately
(when the ptimer triggers by timeout) or when the device
model code closes a transaction-begin/end section (when the
ptimer triggers because the device model changed the
ptimer's count value or other state). As the first step,
rename ptimer_init() to ptimer_init_with_bh(), to free up
the ptimer_init() name for the new API. We can then convert
all the ptimer users away from ptimer_init_with_bh() before
removing it entirely.
(Commit created with
git grep -l ptimer_init | xargs sed -i -e 's/ptimer_init/ptimer_init_with_bh/'
and three overlong lines folded by hand.)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20191008171740.9679-2-peter.maydell@linaro.org
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As explained in commit aff39be0ed97:
Both functions, object_initialize() and object_property_add_child()
increase the reference counter of the new object, so one of the
references has to be dropped afterwards to get the reference
counting right. Otherwise the child object will not be properly
cleaned up when the parent gets destroyed.
Thus let's use now object_initialize_child() instead to get the
reference counting here right.
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20190823143249.8096-6-philmd@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Reported by GCC9 when building with CFLAG -Wimplicit-fallthrough=2:
CC hw/dma/omap_dma.o
hw/dma/omap_dma.c: In function ‘omap_dma_write’:
hw/dma/omap_dma.c:1532:12: error: this statement may fall through [-Werror=implicit-fallthrough=]
1532 | if (s->model <= omap_dma_3_1)
| ^
hw/dma/omap_dma.c:1534:5: note: here
1534 | case 0x400:
| ^~~~
cc1: all warnings being treated as errors
Correctly place the 'fall through' comment.
Reported-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20190719131425.10835-3-philmd@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
|
