Commit Graph

81 Commits

Author SHA1 Message Date
BALATON Zoltan
1d0c537985 hw/misc/macio: Return bool from functions taking errp
Use the convention to return bool from functions which take an error
pointer which allows for callers to pass through their error pointer
without needing a local.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Message-Id: <bfce0751e82b031f5e6fb3c32cfbce6325434400.1674001242.git.balaton@eik.bme.hu>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2023-02-06 11:41:39 +00:00
BALATON Zoltan
af36fca459 hw/misc/macio: Remove some single use local variables
Drop some local variables that could just be substituted at the single
place they were used. This makes the code shorter and simpler.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Message-Id: <165a4ea190af7c09832f50f02004fad82f704898.1674001242.git.balaton@eik.bme.hu>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2023-02-06 11:41:39 +00:00
BALATON Zoltan
740ce28c46 hw/misc/macio: Rename sysbus_dev to sbd for consistency and brevity
Some functions use sysbus_dev while others sbd name for local variable
storing a sysbus device pointer. Standardise on the shorter name to be
consistent and make the code easier to read as short name is less
distracting and needs less line breaks.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Message-Id: <6c79d6903fc11e153f8050a374904c2b5d5db585.1674001242.git.balaton@eik.bme.hu>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2023-02-06 11:41:39 +00:00
BALATON Zoltan
ea361fc348 hw/misc/macio: Avoid some QOM casts
At several places we already have the object pointer with the right
type so we don't need to cast it back and forth. Avoiding these casts
improves readability.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Message-Id: <67b2d4700879c3b4cd574f1faa1a0d1950b3d0ee.1674001242.git.balaton@eik.bme.hu>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2023-02-06 11:41:39 +00:00
BALATON Zoltan
458586fe19 mac_nvram: Use NVRAM_SIZE constant
The NVRAM_SIZE constant was defined but not used. Rename it to
MACIO_NVRAM_SIZE to match the device model and use it where appropriate.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <5b53c70438dfb46837af8a094e753706b06c4ec6.1666957578.git.balaton@eik.bme.hu>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2022-10-31 18:48:23 +00:00
BALATON Zoltan
443f07b73d hw/ppc/mac.h: Rename to include/hw/nvram/mac_nvram.h
All that is left in mac.h now belongs to the nvram emulation so rename
it accordingly and only include it where it is really used.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <b82449369f718c0e207fe8c332fab550fa0230c0.1666957578.git.balaton@eik.bme.hu>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2022-10-31 18:48:23 +00:00
BALATON Zoltan
55078ea777 hw/ppc/mac.h: Move macio specific parts out from shared header
Move the parts specific to and only used by macio out from the shared
mac.h into macio.c where they better belong.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <ac570ce9dcbae169310503689053807b8b4b86bc.1666957578.git.balaton@eik.bme.hu>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2022-10-31 18:48:23 +00:00
Peter Maydell
d637e1dc6d qbus: Rename qbus_create_inplace() to qbus_init()
Rename qbus_create_inplace() to qbus_init(); this is more in line
with our usual naming convention for functions that in-place
initialize objects.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-id: 20210923121153.23754-5-peter.maydell@linaro.org
2021-09-30 13:42:10 +01:00
Thomas Huth
4c386f8064 Do not include sysemu/sysemu.h if it's not really necessary
Stop including sysemu/sysemu.h in files that don't need it.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20210416171314.2074665-2-thuth@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-05-02 17:24:50 +02:00
Mark Cave-Ayland
7b3180f911 macio: don't set user_creatable to false
Now that all of the object property links to the heathrow PIC and OpenPIC have
been removed from the macio devices, it is safe to allow the macio-oldworld
and macio-neworld devices to be marked as user_creatable.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <20201229175619.6051-8-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2021-01-13 12:21:21 +00:00
Mark Cave-Ayland
b73eb72792 macio: wire macio GPIOs to OpenPIC using sysbus IRQs
This both allows the wiring to be done as Ben suggested in his original comment in
gpio.c and also enables the OpenPIC object property link to be removed.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <20201229175619.6051-7-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2021-01-13 12:21:21 +00:00
Mark Cave-Ayland
7e4d62dfee macio: move OpenPIC inside macio-newworld device
The OpenPIC device is located within the macio device on real hardware so make it
a child of the macio-newworld device. This also removes the need for setting and
checking a separate PIC object property link on the macio-newworld device which
currently causes the automated QOM introspection tests to fail.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <20201229175619.6051-6-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2021-01-13 12:21:10 +00:00
Mark Cave-Ayland
370022ce31 macio: move heathrow PIC inside macio-oldworld device
The heathrow PIC is located within the macio device on real hardware so make it
a child of the macio-oldworld device. This also removes the need for setting and
checking a separate PIC object property link on the macio-oldworld device which
currently causes the automated QOM introspection tests to fail.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <20201229175619.6051-4-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2021-01-13 12:20:37 +00:00
Mark Cave-Ayland
6bfa035ec3 macio: set user_creatable to false in macio_class_init()
Commit 348b8d1a76 "macio: don't reference serial_hd() directly within the device"
removed the setting of user_creatable to false on the basis that the restriction
was due to the use of serial_hd() in macio_instance_init().

Unfortunately this isn't the full story since the PIC object property links
must still be set before the device is realized. Whilst it is possible to update
the macio device and Mac machines to resolve this, the fix is too invasive at
this point in the release cycle.

For now simply set user_creatable back to false in macio_class_init() to
prevent QEMU from segfaulting in anticipation of the proper fix arriving in
QEMU 6.0.

Reported-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20201110103111.18395-1-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2020-11-12 09:26:20 +00:00
Mark Cave-Ayland
348b8d1a76 macio: don't reference serial_hd() directly within the device
Instead use qdev_prop_set_chr() to configure the ESCC serial chardevs at the
Mac Old World and New World machine level.

Also remove the now obsolete comment referring to the use of serial_hd() and
the setting of user_creatable to false accordingly.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <20201013114922.2946-2-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2020-10-18 16:21:42 +01:00
Markus Armbruster
668f62ec62 error: Eliminate error_propagate() with Coccinelle, part 1
When all we do with an Error we receive into a local variable is
propagating to somewhere else, we can just as well receive it there
right away.  Convert

    if (!foo(..., &err)) {
        ...
        error_propagate(errp, err);
        ...
        return ...
    }

to

    if (!foo(..., errp)) {
        ...
        ...
        return ...
    }

where nothing else needs @err.  Coccinelle script:

    @rule1 forall@
    identifier fun, err, errp, lbl;
    expression list args, args2;
    binary operator op;
    constant c1, c2;
    symbol false;
    @@
         if (
    (
    -        fun(args, &err, args2)
    +        fun(args, errp, args2)
    |
    -        !fun(args, &err, args2)
    +        !fun(args, errp, args2)
    |
    -        fun(args, &err, args2) op c1
    +        fun(args, errp, args2) op c1
    )
            )
         {
             ... when != err
                 when != lbl:
                 when strict
    -        error_propagate(errp, err);
             ... when != err
    (
             return;
    |
             return c2;
    |
             return false;
    )
         }

    @rule2 forall@
    identifier fun, err, errp, lbl;
    expression list args, args2;
    expression var;
    binary operator op;
    constant c1, c2;
    symbol false;
    @@
    -    var = fun(args, &err, args2);
    +    var = fun(args, errp, args2);
         ... when != err
         if (
    (
             var
    |
             !var
    |
             var op c1
    )
            )
         {
             ... when != err
                 when != lbl:
                 when strict
    -        error_propagate(errp, err);
             ... when != err
    (
             return;
    |
             return c2;
    |
             return false;
    |
             return var;
    )
         }

    @depends on rule1 || rule2@
    identifier err;
    @@
    -    Error *err = NULL;
         ... when != err

Not exactly elegant, I'm afraid.

The "when != lbl:" is necessary to avoid transforming

         if (fun(args, &err)) {
             goto out
         }
         ...
     out:
         error_propagate(errp, err);

even though other paths to label out still need the error_propagate().
For an actual example, see sclp_realize().

Without the "when strict", Coccinelle transforms vfio_msix_setup(),
incorrectly.  I don't know what exactly "when strict" does, only that
it helps here.

The match of return is narrower than what I want, but I can't figure
out how to express "return where the operand doesn't use @err".  For
an example where it's too narrow, see vfio_intx_enable().

Silently fails to convert hw/arm/armsse.c, because Coccinelle gets
confused by ARMSSE being used both as typedef and function-like macro
there.  Converted manually.

Line breaks tidied up manually.  One nested declaration of @local_err
deleted manually.  Preexisting unwanted blank line dropped in
hw/riscv/sifive_e.c.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200707160613.848843-35-armbru@redhat.com>
2020-07-10 15:18:08 +02:00
Markus Armbruster
5325cc34a2 qom: Put name parameter before value / visitor parameter
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]
2020-07-10 15:18:08 +02:00
Markus Armbruster
0a15a73236 macio: Tidy up error handling in macio_newworld_realize()
macio_newworld_realize() effectively ignores ns->gpio realization
errors, leaking the Error object.  Fortunately, macio_gpio_realize()
can't actually fail.  Tidy up.

Cc: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Cc: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Message-Id: <20200707160613.848843-6-armbru@redhat.com>
2020-07-10 15:01:06 +02:00
Markus Armbruster
118bfd76c9 qdev: Use returned bool to check for qdev_realize() etc. failure
Convert

    foo(..., &err);
    if (err) {
        ...
    }

to

    if (!foo(..., &err)) {
        ...
    }

for qdev_realize(), qdev_realize_and_unref(), qbus_realize() and their
wrappers isa_realize_and_unref(), pci_realize_and_unref(),
sysbus_realize(), sysbus_realize_and_unref(), usb_realize_and_unref().
Coccinelle script:

    @@
    identifier fun = {
        isa_realize_and_unref, pci_realize_and_unref, qbus_realize,
        qdev_realize, qdev_realize_and_unref, sysbus_realize,
        sysbus_realize_and_unref, usb_realize_and_unref
    };
    expression list args, args2;
    typedef Error;
    Error *err;
    @@
    -    fun(args, &err, args2);
    -    if (err)
    +    if (!fun(args, &err, args2))
         {
             ...
         }

Chokes on hw/arm/musicpal.c's lcd_refresh() with the unhelpful error
message "no position information".  Nothing to convert there; skipped.

Fails to convert hw/arm/armsse.c, because Coccinelle gets confused by
ARMSSE being used both as typedef and function-like macro there.
Converted manually.

A few line breaks tidied up manually.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Message-Id: <20200707160613.848843-5-armbru@redhat.com>
2020-07-10 15:01:06 +02:00
Markus Armbruster
2726dc51e0 hw: Fix error API violation around object_property_set_link()
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>
2020-07-02 06:25:29 +02:00
Markus Armbruster
8fb9cfe762 macio: Eliminate macio_init_child_obj()
macio_init_child_obj() has become a trivial wrapper around
object_initialize_child_with_props().  Eliminate it, since the general
convenience wrapper object_initialize_child() is just as convenient
already.

Cc: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Cc: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20200610053247.1583243-39-armbru@redhat.com>
2020-06-15 22:05:28 +02:00
Markus Armbruster
f4a0df70a2 macio: Convert use of qdev_set_parent_bus()
Convert qdev_set_parent_bus()/realize to qdev_realize(); recent commit
"qdev: New qdev_new(), qdev_realize(), etc." explains why.

Cc: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Cc: David Gibson <david@gibson.dropbear.id.au>
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: <20200610053247.1583243-38-armbru@redhat.com>
2020-06-15 22:05:28 +02:00
Markus Armbruster
9fc7fc4d39 qom: Less verbose object_initialize_child()
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 fe0fe4735e)]
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20200610053247.1583243-37-armbru@redhat.com>
2020-06-15 22:05:28 +02:00
Markus Armbruster
99ba777e53 qdev: Convert uses of qdev_set_parent_bus() with Coccinelle
In addition to the qdev_create() patterns converted so far, we have a
qdev_set_parent_bus() pattern.  Mostly when we embed a device in a
parent device rather than allocating it on the heap.

This pattern also puts devices in the dangerous "no QOM parent, but
plugged into bus" state I explained in recent commit "qdev: New
qdev_new(), qdev_realize(), etc."

Apply same solution: convert to qdev_realize().  Coccinelle script:

    @@
    expression dev, bus, errp;
    symbol true;
    @@
    -    qdev_set_parent_bus(DEVICE(dev), bus);
         ...
    -    object_property_set_bool(OBJECT(dev), true, "realized", errp);
    +    qdev_realize(DEVICE(dev), bus, errp);

    @ depends on !(file in "qdev-monitor.c") && !(file in "hw/core/qdev.c")@
    expression dev, bus, errp;
    symbol true;
    @@
    -    qdev_set_parent_bus(dev, bus);
         ...
    -    object_property_set_bool(OBJECT(dev), true, "realized", errp);
    +    qdev_realize(dev, bus, errp);

    @@
    expression dev, bus;
    symbol true;
    @@
    -    qdev_set_parent_bus(DEVICE(dev), bus);
         ...
    -    qdev_init_nofail(DEVICE(dev));
    +    qdev_realize(DEVICE(dev), bus, &error_fatal);

Unconverted uses of qdev_set_parent_bus() remain.  They'll be
converted later in this series.

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: <20200610053247.1583243-12-armbru@redhat.com>
[Also convert new hw/virtio/vhost-user-vsock-pci.c]
2020-06-15 22:05:08 +02:00
Markus Armbruster
6741a3430b macio: Fix macio-bus to be a subtype of System bus
The devices we plug into the macio-bus are all sysbus devices
(DeviceClass member bus_type is TYPE_SYSTEM_BUS), but macio-bus does
not derive from TYPE_SYSTEM_BUS.  Fix that.

"info qtree" now shows the devices' mmio ranges, as it should

Cc: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Cc: David Gibson <david@gibson.dropbear.id.au>
Cc: qemu-ppc@nongnu.org
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200609122339.937862-16-armbru@redhat.com>
2020-06-15 21:36:21 +02:00
Markus Armbruster
514db7710b macio: Put "macio-nvram" device on the macio bus
macio_oldworld_init() creates a "macio-nvram", sysbus device, but
neglects to but it on a bus.

Put it on the macio bus.  Affects machine g3beige.  Visible in "info
qtree":

             bus: macio.0
               type macio-bus
               [...]
    +          dev: macio-nvram, id ""
    +            size = 8192 (0x2000)
    +            it_shift = 4 (0x4)

This also makes it a QOM child of macio-oldworld.  Visible in "info
qom-tree":

     /machine (g3beige-machine)
       [...]
       /unattached (container)
         [...]
         /device[6] (macio-oldworld)
           [...]
    -    /device[7] (macio-nvram)
    -      /macio-nvram[0] (qemu:memory-region)
    +      /nvram (macio-nvram)
    +        /macio-nvram[0] (qemu:memory-region)
         [rest of device[*] renumbered...]

Cc: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Cc: David Gibson <david@gibson.dropbear.id.au>
Cc: qemu-ppc@nongnu.org
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20200609122339.937862-15-armbru@redhat.com>
2020-06-15 21:36:21 +02:00
Markus Armbruster
33208432f5 macio: Delete unused "macio-gpio" devices
These devices go with the "via-pmu" device, which is controlled by
property "has-pmu".  macio_newworld_init() creates it unconditionally,
because the property has not been set then.  macio_newworld_realize()
realizes it only when the property is true.  Works, although it can
leave an unrealized device hanging around in the QOM composition tree.
Affects machine mac99 with via=cuda (default).

Delete the unused device by making macio_newworld_realize() unparent
it.  Visible in "info qom-tree":

     /machine (mac99-machine)
       [...]
       /unattached (container)
         /device[9] (macio-newworld)
           [...]
           /escc-legacy-port[8] (qemu:memory-region)
           /escc-legacy-port[9] (qemu:memory-region)
           /escc-legacy[0] (qemu:memory-region)
    -      /gpio (macio-gpio)
    -        /gpio[0] (qemu:memory-region)
           /ide[0] (macio-ide)
             /ide.0 (IDE)
             /pmac-ide[0] (qemu:memory-region)

Cc: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Cc: David Gibson <david@gibson.dropbear.id.au>
Cc: qemu-ppc@nongnu.org
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <20200609122339.937862-11-armbru@redhat.com>
2020-06-15 21:36:21 +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
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
Markus Armbruster
2f780b6a91 sysemu: Move the VMChangeStateEntry typedef to qemu/typedefs.h
In my "build everything" tree, changing sysemu/sysemu.h triggers a
recompile of some 1800 out of 6600 objects (not counting tests and
objects that don't depend on qemu/osdep.h, down from 5400 due to the
previous commit).

Several headers include sysemu/sysemu.h just to get typedef
VMChangeStateEntry.  Move it from sysemu/sysemu.h to qemu/typedefs.h.
Spell its structure tag the same while there.  Drop the now
superfluous includes of sysemu/sysemu.h from headers.

Touching sysemu/sysemu.h now recompiles some 1100 objects.
qemu/uuid.h also drops from 1800 to 1100, and
qapi/qapi-types-run-state.h from 5000 to 4400.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20190812052359.30071-29-armbru@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-08-16 13:31:53 +02:00
Markus Armbruster
a27bd6c779 Include hw/qdev-properties.h less
In my "build everything" tree, changing hw/qdev-properties.h triggers
a recompile of some 2700 out of 6600 objects (not counting tests and
objects that don't depend on qemu/osdep.h).

Many places including hw/qdev-properties.h (directly or via hw/qdev.h)
actually need only hw/qdev-core.h.  Include hw/qdev-core.h there
instead.

hw/qdev.h is actually pointless: all it does is include hw/qdev-core.h
and hw/qdev-properties.h, which in turn includes hw/qdev-core.h.
Replace the remaining uses of hw/qdev.h by hw/qdev-properties.h.

While there, delete a few superfluous inclusions of hw/qdev-core.h.

Touching hw/qdev-properties.h now recompiles some 1200 objects.

Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Daniel P. Berrangé" <berrange@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20190812052359.30071-22-armbru@redhat.com>
2019-08-16 13:31:53 +02:00
Markus Armbruster
650d103d3e Include hw/hw.h exactly where needed
In my "build everything" tree, changing hw/hw.h triggers a recompile
of some 2600 out of 6600 objects (not counting tests and objects that
don't depend on qemu/osdep.h).

The previous commits have left only the declaration of hw_error() in
hw/hw.h.  This permits dropping most of its inclusions.  Touching it
now recompiles less than 200 objects.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20190812052359.30071-19-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-08-16 13:31:52 +02:00
Markus Armbruster
d645427057 Include migration/vmstate.h less
In my "build everything" tree, changing migration/vmstate.h triggers a
recompile of some 2700 out of 6600 objects (not counting tests and
objects that don't depend on qemu/osdep.h).

hw/hw.h supposedly includes it for convenience.  Several other headers
include it just to get VMStateDescription.  The previous commit made
that unnecessary.

Include migration/vmstate.h only where it's still needed.  Touching it
now recompiles only some 1600 objects.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20190812052359.30071-16-armbru@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-08-16 13:31:52 +02:00
Markus Armbruster
0b8fa32f55 Include qemu/module.h where needed, drop it from qemu-common.h
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20190523143508.25387-4-armbru@redhat.com>
[Rebased with conflicts resolved automatically, except for
hw/usb/dev-hub.c hw/misc/exynos4210_rng.c hw/misc/bcm2835_rng.c
hw/misc/aspeed_scu.c hw/display/virtio-vga.c hw/arm/stm32f205_soc.c;
ui/cocoa.m fixed up]
2019-06-12 13:18:33 +02:00
Philippe Mathieu-Daudé
954d97672f hw/misc/macio: Use object_initialize_child for correct ref. counting
As explained in commit aff39be0ed:

  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.

This patch was generated using the following Coccinelle script
(with a bit of manual fix-up for overly long lines):

 @use_object_initialize_child@
 expression parent_obj;
 expression child_ptr;
 expression child_name;
 expression child_type;
 expression child_size;
 expression errp;
 @@
 (
 -   object_initialize(child_ptr, child_size, child_type);
 +   object_initialize_child(parent_obj, child_name,  child_ptr, child_size,
 +                           child_type, &error_abort, NULL);
     ... when != parent_obj
 -   object_property_add_child(parent_obj, child_name, OBJECT(child_ptr), NULL);
     ...
 ?-  object_unref(OBJECT(child_ptr));
 |
 -   object_initialize(child_ptr, child_size, child_type);
 +   object_initialize_child(parent_obj, child_name,  child_ptr, child_size,
 +                            child_type, errp, NULL);
     ... when != parent_obj
 -   object_property_add_child(parent_obj, child_name, OBJECT(child_ptr), errp);
     ...
 ?-  object_unref(OBJECT(child_ptr));
 )

While the object_initialize() function doesn't take an
'Error *errp' argument, the object_initialize_child() does.
Since this code is used when a machine is created (and is not
yet running), we deliberately choose to use the &error_abort
argument instead of ignoring errors if an object creation failed.

Suggested-by: Eduardo Habkost <ehabkost@redhat.com>
Inspired-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190507163416.24647-3-philmd@redhat.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2019-05-24 15:29:02 -03:00
Mark Cave-Ayland
5c8e3d17ed macio: add addr property to macio IDE object
This contains the offset of the IDE controller within the macio address space
and is required to allow the address to be included within the fw path.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-08-30 10:42:18 +10:00
Mark Cave-Ayland
bf31c56f09 macio: add macio bus to help with fw path generation
As the in-built IDE controller is attached to the macio bus then we should also
model this the same in QEMU to aid fw path generation.

Note that all existing macio devices are moved onto the new macio bus so that
the qdev tree accurately reflects the real hardware.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-08-30 10:42:18 +10:00
Thomas Huth
1069a3c6e1 hw/misc/macio: Fix device introspection problems in macio devices
Valgrind reports an error when introspecting the macio devices, e.g.:

echo "{'execute':'qmp_capabilities'} {'execute':'device-list-properties'," \
 "'arguments':{'typename':'macio-newworld'}}" \
 "{'execute': 'human-monitor-command', " \
 "'arguments': {'command-line': 'info qtree'}}" | \
 valgrind -q ppc64-softmmu/qemu-system-ppc64 -M none,accel=qtest -qmp stdio
[...]
==30768== Invalid read of size 8
==30768==    at 0x5BC1EA: qdev_print (qdev-monitor.c:686)
==30768==    by 0x5BC1EA: qbus_print (qdev-monitor.c:719)
==30768==    by 0x43E458: handle_hmp_command (monitor.c:3446)
[...]

Use the new function sysbus_init_child_obj() to initialize the objects
here, to get the reference counting of the objects right, so that they
are cleaned up correctly when the parent gets removed.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-08-01 09:48:40 +10:00
Mark Cave-Ayland
d811d61fbc mac_newworld: add PMU device
The PMU device supercedes the CUDA device found on older New World Macs and
is supported by a larger number of guest OSs from OS 9 to OS X 10.5.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-06-16 16:32:33 +10:00
Mark Cave-Ayland
7c4166a971 mac_newworld: add gpios to macio devices with PMU enabled
PMU-enabled New World Macs expose their GPIOs via a separate memory region
within the macio device.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-06-16 16:32:33 +10:00
Mark Cave-Ayland
f1114c17ee mac_newworld: add via machine option to control mac99 VIA/ADB configuration
This option allows the VIA configuration to be controlled between 3
different possible setups: cuda, pmu-adb and pmu with USB rather than ADB
keyboard/mouse.

For the moment we don't do anything with the configuration except to pass
it to the macio device (the via-cuda parent) and also to the firmware via
the fw_cfg interface so that it can present the correct device tree.

The default is cuda which is the current default and so will have no
change in behaviour.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-06-16 16:32:33 +10:00
Mark Cave-Ayland
56e7404bc1 macio: add trace-events to timer device
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-06-12 09:33:52 +10:00
Mark Cave-Ayland
0fcd2a814a mac_newworld: move wiring of macio IRQs to macio_newworld_realize()
Since the macio device has a link to the PIC device, we can now wire up the
IRQs directly via qdev GPIOs rather than having to use an intermediate array.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-05-04 15:00:37 +10:00
Mark Cave-Ayland
20d2514ad8 mac_oldworld: move wiring of macio IRQs to macio_oldworld_realize()
Since the macio device has a link to the PIC device, we can now wire up the
IRQs directly via qdev GPIOs rather than having to use an intermediate array.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-04-27 18:05:22 +10:00
Peter Maydell
9bca0edb28 Change references to serial_hds[] to serial_hd()
Change all the uses of serial_hds[] to go via the new
serial_hd() function. Code change produced with:
 find hw -name '*.[ch]' | xargs sed -i -e 's/serial_hds\[\([^]]*\)\]/serial_hd(\1)/g'

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-id: 20180420145249.32435-8-peter.maydell@linaro.org
2018-04-26 13:57:00 +01:00
Thomas Huth
ddd835f32a hw/misc/macio: Fix crash when listing device properties of macio device
The macio-newworld device can currently be used to abort QEMU unexpectedly:

$ ppc-softmmu/qemu-system-ppc -S -M ref405ep,accel=qtest -qmp stdio
{"QMP": {"version": {"qemu": {"micro": 50, "minor": 11, "major": 2},
 "package": "build-all"}, "capabilities": []}}
{ 'execute': 'qmp_capabilities' }
{"return": {}}
{ 'execute': 'device-list-properties',
  'arguments': {'typename': 'macio-newworld'}}
Unexpected error in qemu_chr_fe_init() at chardev/char-fe.c:222:
Device 'serial0' is in use
Aborted (core dumped)

qdev properties should be set during realize(), not during instance_init(),
so move the related code there to fix this problem.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-04-10 10:05:38 +10:00
Thomas Huth
1ca15d85ab hw/misc/macio: Mark the macio devices with user_creatable = false
The macio devices currently cause a crash when the user tries to
instantiate them on a different machine:

$ ppc64-softmmu/qemu-system-ppc64 -device macio-newworld
Unexpected error in qemu_chr_fe_init() at chardev/char-fe.c:222:
qemu-system-ppc64: -device macio-newworld: Device 'serial0' is in use
Aborted (core dumped)

These devices are clearly not intended to be creatable by the user
since they are using serial_hds[] directly in their instance_init
function. So let's mark them with user_creatable = false.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-03-18 18:27:23 +11:00
Mark Cave-Ayland
b6712ea391 macio: remove macio_init() function
Move the remaining comment into macio.c for reference, then remove the
macio_init() function and instantiate the macio devices for both Old World
and New World machines via qdev_init_nofail() directly.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-03-06 13:16:29 +11:00
Mark Cave-Ayland
aa79b0860e macio: move setting of CUDA timebase frequency to macio_common_realize()
This removes the last of the functionality from macio_init() in preparation
for its subsequent removal.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-03-06 13:16:29 +11:00
Mark Cave-Ayland
dda12e9a6f mac_newworld: use object link to pass OpenPIC object to macio
Also switch macio_newworld_realize() over to use it rather than using the pic_mem
memory region directly.

Now that both Old World and New World macio devices no longer make use of the
pic_mem memory region directly, we can remove it.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-03-06 13:16:29 +11:00