Move the complexity of milkymist_tmu2_create() into the
source file. Doing so we avoid to include the X11/OpenGL
headers in all LM32 devices, and we also avoid the duplicate
declaration of glx_fbconfig_attr[] (it is already declared
in hw/display/milkymist-tmu2.c).
Since TYPE_MILKYMIST_TMU2 is now accessible, use it.
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20190130120005.23123-5-philmd@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
- New debugging QMP command to explore block graphs
- Converted DPRINTF()s to trace events
- Fixed qemu-io's use of getopt() for systems with optreset
- Minor NVMe emulation fixes
- An iotest fix
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Merge remote-tracking branch 'remotes/xanclic/tags/pull-block-2019-01-31' into staging
Block patches:
- New debugging QMP command to explore block graphs
- Converted DPRINTF()s to trace events
- Fixed qemu-io's use of getopt() for systems with optreset
- Minor NVMe emulation fixes
- An iotest fix
# gpg: Signature made Thu 31 Jan 2019 00:51:46 GMT
# gpg: using RSA key F407DB0061D5CF40
# gpg: Good signature from "Max Reitz <mreitz@redhat.com>" [full]
# Primary key fingerprint: 91BE B60A 30DB 3E88 57D1 1829 F407 DB00 61D5 CF40
* remotes/xanclic/tags/pull-block-2019-01-31:
iotests: Allow 147 to be run concurrently
iotests: Bind qemu-nbd to localhost in 147
iotests.py: Add qemu_nbd_pipe()
nvme: use pci_dev directly in nvme_realize
nvme: ensure the num_queues is not zero
nvme: use TYPE_NVME instead of constant string
qemu-io: Add generic function for reinitializing optind.
block/sheepdog: Convert from DPRINTF() macro to trace events
block/file-posix: Convert from DPRINTF() macro to trace events
block/curl: Convert from DPRINTF() macro to trace events
block/ssh: Convert from DPRINTF() macro to trace events
scripts: add render_block_graph function for QEMUMachine
qapi: add x-debug-query-block-graph
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
On FreeBSD 11.2:
$ nbdkit memory size=1M --run './qemu-io -f raw -c "aio_write 0 512" $nbd'
Parsing error: non-numeric argument, or extraneous/unrecognized suffix -- aio_write
After main option parsing, we reinitialize optind so we can parse each
command. However reinitializing optind to 0 does not work on FreeBSD.
What happens when you do this is optind remains 0 after the option
parsing loop, and the result is we try to parse argv[optind] ==
argv[0] == "aio_write" as if it was the first parameter.
The FreeBSD manual page says:
In order to use getopt() to evaluate multiple sets of arguments, or to
evaluate a single set of arguments multiple times, the variable optreset
must be set to 1 before the second and each additional set of calls to
getopt(), and the variable optind must be reinitialized.
(From the rest of the man page it is clear that optind must be
reinitialized to 1).
The glibc man page says:
A program that scans multiple argument vectors, or rescans the same
vector more than once, and wants to make use of GNU extensions such as
'+' and '-' at the start of optstring, or changes the value of
POSIXLY_CORRECT between scans, must reinitialize getopt() by resetting
optind to 0, rather than the traditional value of 1. (Resetting to 0
forces the invocation of an internal initialization routine that
rechecks POSIXLY_CORRECT and checks for GNU extensions in optstring.)
This commit introduces an OS-portability function called
qemu_reset_optind which provides a way of resetting optind that works
on FreeBSD and platforms that use optreset, while keeping it the same
as now on other platforms.
Note that the qemu codebase sets optind in many other places, but in
those other places it's setting a local variable and not using getopt.
This change is only needed in places where we are using getopt and the
associated global variable optind.
Signed-off-by: Richard W.M. Jones <rjones@redhat.com>
Message-id: 20190118101114.11759-2-rjones@redhat.com
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
Add a new command, returning block nodes (and their users) graph.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-id: 20181221170909.25584-2-vsementsov@virtuozzo.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
Some files claim that the code is licensed under the GPL, but then
suddenly suggest that the user should have a look at the LGPL.
That's of course non-sense, replace it with the correct GPL wording
instead.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <1548255083-8190-1-git-send-email-thuth@redhat.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
apci_1_compatible should be acpi_1_compatible.
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190125094047.22276-1-dgilbert@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Include the cluster number in the hash we use to look
up TBs. This is important because a TB that is valid
for one cluster at a given physical address and set
of CPU flags is not necessarily valid for another:
the two clusters may have different views of physical
memory, or may have different CPU features (eg FPU
present or absent).
We put the cluster number in the high 8 bits of the
TB cflags. This gives us up to 256 clusters, which should
be enough for anybody. If we ever need more, or need
more bits in cflags for other purposes, we could make
tb_hash_func() take more data (and expand qemu_xxhash7()
to qemu_xxhash8()).
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id: 20190121152218.9592-4-peter.maydell@linaro.org
For TCG we want to distinguish which cluster a CPU is in, and
we need to do it quickly. Cache the cluster index in the CPUState
struct, by having the cluster object set cpu->cluster_index for
each CPU child when it is realized.
This means that board/SoC code must add all CPUs to the cluster
before realizing the cluster object. Regrettably QOM provides no
way to prevent adding children to a realized object and no way for
the parent to be notified when a new child is added to it, so
we don't have any way to enforce/assert this constraint; all
we can do is document it in a comment. We can at least put in a
check that the cluster contains at least one CPU, which should
catch the typical cases of "realized cluster too early" or
"forgot to parent the CPUs into it".
The restriction on how many clusters can exist in the system
is imposed by TCG code which will be added in a subsequent commit,
but the check to enforce it in cluster.c fits better in this one.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20190121152218.9592-3-peter.maydell@linaro.org
The m25p80 models dummy cycles using byte transfers. This works well
when the transfers are initiated by the QEMU model of a SPI controller
but when these are initiated by the OS, it breaks emulation.
Snoop the SPI transfer to catch commands requiring dummy cycles and
replace them with byte transfers compatible with the m25p80 model.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Francisco Iglesias <frasse.iglesias@gmail.com>
Message-id: 20190124140519.13838-5-clg@kaod.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
ROM devices go via MemoryRegionOps->write() callbacks for write
operations and do not dirty/invalidate that memory. Device emulation
must be able to mark memory ranges that have been modified internally
(e.g. using memory_region_get_ram_ptr()).
Introduce the memory_region_flush_rom_device() API for this purpose.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20190123212234.32068-2-stefanha@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
[PMM: fix block comment style]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Recent microbit firmwares panic if the TWI magnetometer/accelerometer
devices are not detected during startup. We don't implement TWI (I2C)
so let's stub out these devices just to let the firmware boot.
Signed-off by: Steffen Görtz <contrib@steffen-goertz.de>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20190110094020.18354-2-stefanha@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
[PMM: fixed comment style]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Now that all tcg backends support TCG_TARGET_IMPLEMENTS_DYN_TLB,
remove the define and the old code.
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Disabled in all TCG backends for now.
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Message-Id: <20190116170114.26802-3-cota@braap.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
The device is called via-ide and the modelled IDE controller is not
specific to 82C686B but is also usable independently. Therefore, change
function name prefixes accordingly to match device name.
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Message-id: 2905ced862c8d2ad509d73152171ce2472d72605.1548160772.git.balaton@eik.bme.hu
Signed-off-by: John Snow <jsnow@redhat.com>
Now that no CMD646 specific parts are left in CMD646BAR (all remaining
members are really PCI IDE specific) this struct can be deleted moving
the memory regions for PCI IDE BARs to PCIIDEState where they better
belong. The CMD646 PCI IDE model is adjusted accordingly.
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 4b6cb2ae150dc0d21178209e4beb1e35140a7325.1547166960.git.balaton@eik.bme.hu
Signed-off-by: John Snow <jsnow@redhat.com>
The io mem ops callbacks are not specific to CMD646 but really follow
the PCI IDE spec so move these from cmd646.c to pci.c to allow other
PCI IDE implementations to use them.
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: a2b1b2b74afdc78330b8b75605687f683a249635.1547166960.git.balaton@eik.bme.hu
Signed-off-by: John Snow <jsnow@redhat.com>
The cmd646 io mem ops callbacks only need the IDEBus which is
currently passed via a CMD646BAR struct. No need to wrap it up like
that, we can pass it directly to these callbacks which then allows to
drop the IDEBus from the CMD646BAR.
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 7a31c155c9899869794499d841d30c7ef32aae47.1547166960.git.balaton@eik.bme.hu
Signed-off-by: John Snow <jsnow@redhat.com>
There was a pointer to PCIIDEState in CMD646BAR which was set but
not used afterwards. Get rid of this unused variable.
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 1e352f091aa601fb2e19771aac46529fe278dd91.1547166960.git.balaton@eik.bme.hu
Signed-off-by: John Snow <jsnow@redhat.com>
New pages-per-second stat, a new test, and a bunch
of fixes and tidy ups.
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Merge remote-tracking branch 'remotes/dgilbert/tags/pull-migration-20190123a' into staging
Migration pull 2019-01-23
New pages-per-second stat, a new test, and a bunch
of fixes and tidy ups.
# gpg: Signature made Wed 23 Jan 2019 15:54:48 GMT
# gpg: using RSA key 0516331EBC5BFDE7
# gpg: Good signature from "Dr. David Alan Gilbert (RH2) <dgilbert@redhat.com>"
# Primary key fingerprint: 45F5 C71B 4A0C B7FB 977A 9FA9 0516 331E BC5B FDE7
* remotes/dgilbert/tags/pull-migration-20190123a:
migration: introduce pages-per-second
vmstate: constify SaveVMHandlers
tests: add /vmstate/simple/array
migration/rdma: unregister fd handler
migration: unify error handling for process_incoming_migration_co
migration: add more error handling for postcopy_ram_enable_notify
migration: multifd_save_cleanup() can't fail, simplify
migration: fix the multifd code when receiving less channels
Fix segmentation fault when qemu_signal_init fails
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The following QMP command leads to a crash when iothreads are used:
{ 'execute': 'device_del', 'arguments': {'id': 'data'} }
The backtrace involves the queue restart coroutine where
tgm->throttle_state is a NULL pointer because
throttle_group_unregister_tgm() has already been called:
(gdb) bt full
#0 0x00005585a7a3b378 in qemu_mutex_lock_impl (mutex=0xffffffffffffffd0, file=0x5585a7bb3d54 "block/throttle-groups.c", line=412) at util/qemu-thread-posix.c:64
err = <optimized out>
__PRETTY_FUNCTION__ = "qemu_mutex_lock_impl"
__func__ = "qemu_mutex_lock_impl"
#1 0x00005585a79be074 in throttle_group_restart_queue_entry (opaque=0x5585a9de4eb0) at block/throttle-groups.c:412
_f = <optimized out>
data = 0x5585a9de4eb0
tgm = 0x5585a9079440
ts = 0x0
tg = 0xffffffffffffff98
is_write = false
empty_queue = 255
This coroutine should not execute in the iothread after the throttle
group member has been unregistered!
The root cause is that the device_del code path schedules the restart
coroutine in the iothread while holding the AioContext lock. Therefore
the iothread cannot execute the coroutine until after device_del
releases the lock - by this time it's too late.
This patch adds a reference count to ThrottleGroupMember so we can
synchronously wait for restart coroutines to complete. Once they are
done it is safe to unregister the ThrottleGroupMember.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Message-id: 20190114133257.30299-2-stefanha@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
The qapi_event_send_FOO() functions emit events like this:
QMPEventFuncEmit emit;
emit = qmp_event_get_func_emit();
if (!emit) {
return;
}
qmp = qmp_event_build_dict("FOO");
[put event arguments into @qmp...]
emit(QAPI_EVENT_FOO, qmp);
The value of qmp_event_get_func_emit() depends only on the program:
* In qemu-system-FOO, it's always monitor_qapi_event_queue.
* In tests/test-qmp-event, it's always event_test_emit.
* In all other programs, it's always null.
This is exactly the kind of dependence the linker is supposed to
resolve; we don't actually need an indirection.
Note that things would fall apart if we linked more than one QAPI
schema into a single program: each set of qapi_event_send_FOO() uses
its own event enumeration, yet they share a single emit function.
Which takes the event enumeration as an argument. Which one if
there's more than one?
More seriously: how does this work even now? qemu-system-FOO wants
QAPIEvent, and passes a function taking that to
qmp_event_set_func_emit(). test-qmp-event wants test_QAPIEvent, and
passes a function taking that to qmp_event_set_func_emit().
It works by type trickery, of course:
typedef void (*QMPEventFuncEmit)(unsigned event, QDict *dict);
void qmp_event_set_func_emit(QMPEventFuncEmit emit);
QMPEventFuncEmit qmp_event_get_func_emit(void);
We use unsigned instead of the enumeration type. Relies on both
enumerations boiling down to unsigned, which happens to be true for
the compilers we use.
Clean this up as follows:
* Generate qapi_event_send_FOO() that call PREFIX_qapi_event_emit()
instead of the value of qmp_event_set_func_emit().
* Generate a prototype for PREFIX_qapi_event_emit() into
qapi-events.h.
* PREFIX_ is empty for qapi/qapi-schema.json, and test_ for
tests/qapi-schema/qapi-schema-test.json. It's qga_ for
qga/qapi-schema.json, and doc-good- for
tests/qapi-schema/doc-good.json, but those don't define any events.
* Rename monitor_qapi_event_queue() to qapi_event_emit() instead of
passing it to qmp_event_set_func_emit(). This takes care of
qemu-system-FOO.
* Rename event_test_emit() to test_qapi_event_emit() instead of
passing it to qmp_event_set_func_emit(). This takes care of
tests/test-qmp-event.
* Add a qapi_event_emit() that does nothing to stubs/monitor.c. This
takes care of all other programs that link code emitting QMP events.
* Drop qmp_event_set_func_emit(), qmp_event_get_func_emit().
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20181218182234.28876-3-armbru@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
[Commit message typos fixed]
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20181114133139.27346-1-marcandre.lureau@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Clang v7.0.1 does not like the __int128 variable type for inline
assembly on s390x:
In file included from fpu/softfloat.c:97:
include/fpu/softfloat-macros.h:647:9: error: inline asm error:
This value type register class is not natively supported!
asm("dlgr %0, %1" : "+r"(n) : "r"(d));
^
Disable this code part there now when compiling with Clang, so that
the generic code gets used instead.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Clang version 3.4.2 does not know the -Wpragmas option yet and bails
out with an error when we try to disable it in linux-user/qemu.h.
Fortunately, clang has a __has_warning() macro which allows us to add
an explicit check for the option that we want to ignore. With that we
can check for the availability of "-Waddress-of-packed-member" properly
and do not need the "-Wpragmas" at all here.
Fixes: 850d5e330a
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Commit 2974e916df introduced the VirtioNetRscChain structure which
refer to a VirtIONet, declared later, thus required VirtIONet typedef
to use a forward declaration.
However, when compiling with Clang in -std=gnu99 mode, this triggers
the following warning/error:
CC hw/net/virtio-net.o
In file included from qemu/hw/net/virtio-net.c:22:
include/hw/virtio/virtio-net.h:189:3: error: redefinition of typedef 'VirtIONet' is a C11 feature [-Werror,-Wtypedef-redefinition]
} VirtIONet;
^
include/hw/virtio/virtio-net.h:110:26: note: previous definition is here
typedef struct VirtIONet VirtIONet;
^
1 error generated.
make: *** [rules.mak:69: hw/net/virtio-net.o] Error 1
Fix it by removing the duplicate typedef definition.
Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
When compiling the ppc code with clang and -std=gnu99, there are a
couple of warnings/errors like this one:
CC ppc64-softmmu/hw/intc/xics.o
In file included from hw/intc/xics.c:35:
include/hw/ppc/xics.h:43:25: error: redefinition of typedef 'ICPState' is a C11 feature
[-Werror,-Wtypedef-redefinition]
typedef struct ICPState ICPState;
^
target/ppc/cpu.h:1181:25: note: previous definition is here
typedef struct ICPState ICPState;
^
Work around the problems by including the proper headers in spapr.h
and by using struct forward declarations in cpu.h.
Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
When compiling with Clang in -std=gnu99 mode, there is a warning/error:
CC ppc64-softmmu/hw/intc/xics_spapr.o
In file included from /home/thuth/devel/qemu/hw/intc/xics_spapr.c:34:
/home/thuth/devel/qemu/include/hw/ppc/xics.h:203:34: error: redefinition of typedef 'sPAPRMachineState' is a C11 feature
[-Werror,-Wtypedef-redefinition]
typedef struct sPAPRMachineState sPAPRMachineState;
^
/home/thuth/devel/qemu/include/hw/ppc/spapr_irq.h:25:34: note: previous definition is here
typedef struct sPAPRMachineState sPAPRMachineState;
^
We have to remove the duplicated typedef here and include "spapr.h" instead.
But "spapr.h" should not be included for the pnv machine files. So move
the spapr-related prototypes into a new file called "xics_spapr.h" instead.
Reviewed-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Header files requiring PixelFormat already include "ui/qemu-pixman.h".
To clean "qemu/typedefs.h", move the declaration to "ui/qemu-pixman.h"
(removing the forward declaration).
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Header files requiring MouseTransformInfo already include "ui/console.h".
To clean "qemu/typedefs.h", move the declaration to "ui/console.h"
(removing the forward declaration).
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Files requiring DisplayState/DisplaySurface already include "ui/console.h".
To clean "qemu/typedefs.h", move the declarations to "ui/console.h"
(removing DisplaySurface forward declaration).
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Files requiring QemuDmaBuf already include "ui/console.h".
To clean "qemu/typedefs.h", move the declaration to "ui/console.h"
(removing the forward declaration).
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Files requiring AudioState already include "audio_int.h".
To clean "qemu/typedefs.h", move the declaration to "audio_int.h"
(removing the forward declaration).
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Files requiring PCMachineClass already include "hw/i386/pc.h".
To clean "qemu/typedefs.h", move the declaration to "hw/i386/pc.h"
(removing the forward declaration).
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Files requiring SerialState already include "hw/char/serial.h".
To clean "qemu/typedefs.h", move the declaration to "hw/char/serial.h"
(removing the forward declaration).
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Files requiring HCIInfo already include "sysemu/bt.h".
To clean "qemu/typedefs.h", move the declaration to "sysemu/bt.h"
(removing the forward declaration).
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Files requiring SMBusDevice already include "hw/i2c/smbus.h".
To clean "qemu/typedefs.h", move the forward declaration
to "hw/i2c/smbus.h".
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Files requiring AllwinnerAHCIState already include "hw/ide/ahci.h".
To clean "qemu/typedefs.h", move the declaration to "hw/ide/ahci.h"
(removing the forward declaration).
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
There is only one header file requiring this typedef (hw/arm/pxa.h),
let it include "hw/pcmcia.h" directly to simplify "qemu/typedefs.h".
To clean "qemu/typedefs.h", move the declaration to "hw/pcmcia.h"
(removing the forward declaration).
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
[thuth: slightly tweaked commit message]
Signed-off-by: Thomas Huth <thuth@redhat.com>
PS2State is only used in "hw/input/ps2.h", there is no
need to expose it via "qemu/typedefs.h".
To clean "qemu/typedefs.h", move the forward declaration
to "hw/input/ps2.h".
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
We want to be able to detect whether a given qemu NBD server is
exposing the right export(s) and dirty bitmaps, at least for
regression testing. We could use 'nbd-client -l' from the upstream
NBD project to list exports, but it's annoying to rely on
out-of-tree binaries; furthermore, nbd-client doesn't necessarily
know about all of the qemu NBD extensions. Thus, we plan on adding
a new mode to qemu-nbd that merely sniffs all possible information
from the server during handshake phase, then disconnects and dumps
the information.
This patch continues the work of the previous patch, by adding the
ability to track the list of available meta contexts into
NBDExportInfo. It benefits from the recent refactoring patches
with a new nbd_list_meta_contexts() that reuses much of the same
framework as setting a meta context.
Note: a malicious server could exhaust memory of a client by feeding
an unending loop of contexts; perhaps we could place a limit on how
many we are willing to receive. But this is no different from our
earlier analysis on a server sending an unending list of exports,
and the death of a client due to memory exhaustion when the client
was going to exit soon anyways is not really a denial of service
attack.
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Richard W.M. Jones <rjones@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20190117193658.16413-19-eblake@redhat.com>
We want to be able to detect whether a given qemu NBD server is
exposing the right export(s) and dirty bitmaps, at least for
regression testing. We could use 'nbd-client -l' from the upstream
NBD project to list exports, but it's annoying to rely on
out-of-tree binaries; furthermore, nbd-client doesn't necessarily
know about all of the qemu NBD extensions. Thus, we plan on adding
a new mode to qemu-nbd that merely sniffs all possible information
from the server during handshake phase, then disconnects and dumps
the information.
This patch adds the low-level client code for grabbing the list
of exports. It benefits from the recent refactoring patches, in
order to share as much code as possible when it comes to doing
validation of server replies. The resulting information is stored
in an array of NBDExportInfo which has been expanded to any
description string, along with a convenience function for freeing
the list.
Note: a malicious server could exhaust memory of a client by feeding
an unending loop of exports; perhaps we should place a limit on how
many we are willing to receive. But note that a server could
reasonably be serving an export for every file in a large directory,
where an arbitrary limit in the client means we can't list anything
from such a server; the same happens if we just run until the client
fails to malloc() and thus dies by an abort(), where the limit is
no longer arbitrary but determined by available memory. Since the
client is already planning on being short-lived, it's hard to call
this a denial of service attack that would starve off other uses,
so it does not appear to be a security issue.
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Richard W.M. Jones <rjones@redhat.com>
Message-Id: <20190117193658.16413-18-eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
