The exynos4210 code currently has two very similar arrays of IRQs:
* board_irqs is a field of the Exynos4210Irq struct which is filled
in by exynos4210_init_board_irqs() with the appropriate qemu_irqs
for each IRQ the board/SoC can assert
* irq_table is a set of qemu_irqs pointed to from the
Exynos4210State struct. It's allocated in exynos4210_init_irq,
and the only behaviour these irqs have is that they pass on the
level to the equivalent board_irqs[] irq
The extra indirection through irq_table is unnecessary, so coalesce
these into a single irq_table[] array as a direct field in
Exynos4210State which exynos4210_init_board_irqs() fills in.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220404154658.565020-6-peter.maydell@linaro.org
The only time we use the int_gic_irq[] array in the Exynos4210Irq
struct is in the exynos4210_realize() function: we initialize it with
the GPIO inputs of the a9mpcore device, and then a bit later on we
connect those to the outputs of the internal combiner. Now that the
a9mpcore object is easily accessible as s->a9mpcore we can make the
connection directly from one device to the other without going via
this array.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220404154658.565020-5-peter.maydell@linaro.org
The exynos4210 SoC mostly creates its child devices as if it were
board code. This includes the a9mpcore object. Switch that to a
new-style "embedded in the state struct" creation, because in the
next commit we're going to want to refer to the object again further
down in the exynos4210_realize() function.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220404154658.565020-4-peter.maydell@linaro.org
Now we have removed the only use of TYPE_EXYNOS4210_IRQ_GATE we can
delete the device entirely.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Francisco Iglesias <frasse.iglesias@gmail.com>
Message-id: 20220404154658.565020-3-peter.maydell@linaro.org
The Exynos4210 SoC device currently uses a custom device
"exynos4210.irq_gate" to model the OR gate that feeds each CPU's IRQ
line. We have a standard TYPE_OR_IRQ device for this now, so use
that instead.
(This is a migration compatibility break, but that is OK for this
machine type.)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220404154658.565020-2-peter.maydell@linaro.org
Connect the CRL (Clock Reset LPD) to the Versal SoC.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
Reviewed-by: Frederic Konrad <fkonrad@amd.com>
Reviewed-by: Francisco Iglesias <francisco.iglesias@amd.com>
Message-id: 20220406174303.2022038-5-edgar.iglesias@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Add a model of the Xilinx Versal CRL.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
Reviewed-by: Frederic Konrad <fkonrad@amd.com>
Reviewed-by: Francisco Iglesias <francisco.iglesias@amd.com>
Message-id: 20220406174303.2022038-4-edgar.iglesias@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Add the Cortex-R5Fs of the Versal RPU (Real-time Processing Unit)
subsystem.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
Reviewed-by: Francisco Iglesias <francisco.iglesias@amd.com>
Message-id: 20220406174303.2022038-3-edgar.iglesias@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Create an APU CPU Cluster. This is in preparation to add the RPU.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
Reviewed-by: Francisco Iglesias <francisco.iglesias@amd.com>
Message-id: 20220406174303.2022038-2-edgar.iglesias@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Connect the 4 TTC timers on the ZynqMP.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Luc Michel <luc@lmichel.fr>
Reviewed-by: Francisco Iglesias <frasse.iglesias@gmail.com>
Message-id: 20220331222017.2914409-3-edgar.iglesias@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Break out header file to allow embedding of the the TTC.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Luc Michel <luc@lmichel.fr>
Reviewed-by: Francisco Iglesias <frasse.iglesias@gmail.com>
Message-id: 20220331222017.2914409-2-edgar.iglesias@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
It's not possible to provide the guest with the Security extensions
(TrustZone) when using KVM or HVF, because the hardware
virtualization extensions don't permit running EL3 guest code.
However, we weren't checking for this combination, with the result
that QEMU would assert if you tried it:
$ qemu-system-aarch64 -enable-kvm -machine virt,secure=on -cpu host -display none
Unexpected error in object_property_find_err() at ../../qom/object.c:1304:
qemu-system-aarch64: Property 'host-arm-cpu.secure-memory' not found
Aborted
Check for this combination of options and report an error, in the
same way we already do for attempts to give a KVM or HVF guest the
Virtualization or MTE extensions. Now we will report:
qemu-system-aarch64: mach-virt: KVM does not support providing Security extensions (TrustZone) to the guest CPU
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/961
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220404155301.566542-1-peter.maydell@linaro.org
This header only defines the tcg_allowed variable and the tcg_enabled()
function - which are not required in many files that include this
header. Drop the #include statement there.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20220315144107.1012530-1-thuth@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
All uses flush output immediately before or after qemu_log_unlock.
Instead of a separate call, move the flush into qemu_log_unlock.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220417183019.755276-20-richard.henderson@linaro.org>
Inside qemu_log, we perform qemu_log_trylock/unlock, which need
not be done if we have already performed the lock beforehand.
Always check the result of qemu_log_trylock -- only checking
qemu_loglevel_mask races with the acquisition of the lock on
the logfile.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220417183019.755276-10-richard.henderson@linaro.org>
Do not replicate the individual logging statements.
Use qemu_log_trylock/unlock instead of qemu_log directly.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220417183019.755276-9-richard.henderson@linaro.org>
This function can fail, which makes it more like ftrylockfile
or pthread_mutex_trylock than flockfile or pthread_mutex_lock,
so rename it.
To closer match the other trylock functions, release rcu_read_lock
along the failure path, so that qemu_log_unlock need not be called
on failure.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220417183019.755276-8-richard.henderson@linaro.org>
* whpx support for breakpoints and stepping
* initial support for Hyper-V Synthetic Debugging
* use monotonic clock for QemuCond and QemuSemaphore
* Remove qemu-common.h include from most units and lots of other clenaups
* do not include headers for all virtio devices in virtio-ccw.h
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Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging
* Add cpu0-id to query-sev-capabilities
* whpx support for breakpoints and stepping
* initial support for Hyper-V Synthetic Debugging
* use monotonic clock for QemuCond and QemuSemaphore
* Remove qemu-common.h include from most units and lots of other clenaups
* do not include headers for all virtio devices in virtio-ccw.h
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# =rMle
# -----END PGP SIGNATURE-----
# gpg: Signature made Wed 13 Apr 2022 10:31:44 AM PDT
# gpg: using RSA key F13338574B662389866C7682BFFBD25F78C7AE83
# gpg: issuer "pbonzini@redhat.com"
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [undefined]
# gpg: aka "Paolo Bonzini <pbonzini@redhat.com>" [undefined]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# 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
* tag 'for-upstream' of https://gitlab.com/bonzini/qemu: (53 commits)
target/i386: Remove unused XMMReg, YMMReg types and CPUState fields
target/i386: do not access beyond the low 128 bits of SSE registers
virtio-ccw: do not include headers for all virtio devices
virtio-ccw: move device type declarations to .c files
virtio-ccw: move vhost_ccw_scsi to a separate file
s390x: follow qdev tree to detect SCSI device on a CCW bus
hw: hyperv: Initial commit for Synthetic Debugging device
hyperv: Add support to process syndbg commands
hyperv: Add definitions for syndbg
hyperv: SControl is optional to enable SynIc
thread-posix: optimize qemu_sem_timedwait with zero timeout
thread-posix: implement Semaphore with QemuCond and QemuMutex
thread-posix: use monotonic clock for QemuCond and QemuSemaphore
thread-posix: remove the posix semaphore support
whpx: Added support for breakpoints and stepping
build-sys: simplify AF_VSOCK check
build-sys: drop ntddscsi.h check
Remove qemu-common.h include from most units
qga: remove explicit environ argument from exec/spawn
Move fcntl_setfl() to oslib-posix
...
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
A potential Use-after-free was reported in virtio_iommu_handle_command
when using virtio-iommu:
> I find a potential Use-after-free in QEMU 6.2.0, which is in
> virtio_iommu_handle_command() (./hw/virtio/virtio-iommu.c).
>
>
> Specifically, in the loop body, the variable 'buf' allocated at line 639 can be
> freed by g_free() at line 659. However, if the execution path enters the loop
> body again and the if branch takes true at line 616, the control will directly
> jump to 'out' at line 651. At this time, 'buf' is a freed pointer, which is not
> assigned with an allocated memory but used at line 653. As a result, a UAF bug
> is triggered.
>
>
>
> 599 for (;;) {
> ...
> 615 sz = iov_to_buf(iov, iov_cnt, 0, &head, sizeof(head));
> 616 if (unlikely(sz != sizeof(head))) {
> 617 tail.status = VIRTIO_IOMMU_S_DEVERR;
> 618 goto out;
> 619 }
> ...
> 639 buf = g_malloc0(output_size);
> ...
> 651 out:
> 652 sz = iov_from_buf(elem->in_sg, elem->in_num, 0,
> 653 buf ? buf : &tail, output_size);
> ...
> 659 g_free(buf);
>
> We can fix it by set ‘buf‘ to NULL after freeing it:
>
>
> 651 out:
> 652 sz = iov_from_buf(elem->in_sg, elem->in_num, 0,
> 653 buf ? buf : &tail, output_size);
> ...
> 659 g_free(buf);
> +++ buf = NULL;
> 660 }
Fix as suggested by the reporter.
Signed-off-by: Wentao Liang <Wentao_Liang_g@163.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Message-id: 20220407095047.50371-1-mst@redhat.com
Message-ID: <20220406040445-mutt-send-email-mst@kernel.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Prevent potential integer overflow by limiting 'width' and 'height' to
512x512. Also change 'datasize' type to size_t. Refer to security
advisory https://starlabs.sg/advisories/22-4206/ for more information.
Fixes: CVE-2021-4206
Signed-off-by: Mauro Matteo Cascella <mcascell@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20220407081712.345609-1-mcascell@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Avoid fetching 'width' and 'height' a second time to prevent possible
race condition. Refer to security advisory
https://starlabs.sg/advisories/22-4207/ for more information.
Fixes: CVE-2021-4207
Signed-off-by: Mauro Matteo Cascella <mcascell@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20220407081106.343235-1-mcascell@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
vmstate_acpi_pcihp_use_acpi_index() was expecting AcpiPciHpState
as state but it actually received PIIX4PMState, because
VMSTATE_PCI_HOTPLUG is a macro and not another struct.
So it ended up accessing random pointer, which resulted
in 'false' return value and acpi_index field wasn't ever
sent.
However in 7.0 that pointer de-references to value > 0, and
destination QEMU starts to expect the field which isn't
sent in migratioon stream from older QEMU (6.2 and older).
As result migration fails with:
qemu-system-x86_64: Missing section footer for 0000:00:01.3/piix4_pm
qemu-system-x86_64: load of migration failed: Invalid argument
In addition with QEMU-6.2, destination due to not expected
state, also never expects the acpi_index field in migration
stream.
Q35 is not affected as it always sends/expects the field as
long as acpi based PCI hotplug is enabled.
Fix issue by introducing compat knob to never send/expect
acpi_index in migration stream for 6.2 and older PC machine
types and always send it for 7.0 and newer PC machine types.
Diagnosed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Fixes: b32bd76 ("pci: introduce acpi-index property for PCI device")
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/932
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Remove unecessary use of #ifdef CONFIG_VHOST_SCSI, instead just use a
separate file and a separate rule in meson.build.
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Do not make assumptions on the parent type of the SCSIDevice, instead
use object_dynamic_cast all the way up to the CcwDevice. This is cleaner
because there is no guarantee that the bus is on a virtio-scsi device;
that is only the case for the default configuration of QEMU's s390x
target.
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Jon Doron <arilou@gmail.com>
Reviewed-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Message-Id: <20220216102500.692781-5-arilou@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
SynDbg commands can come from two different flows:
1. Hypercalls, in this mode the data being sent is fully
encapsulated network packets.
2. SynDbg specific MSRs, in this mode only the data that needs to be
transfered is passed.
Signed-off-by: Jon Doron <arilou@gmail.com>
Reviewed-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Message-Id: <20220216102500.692781-4-arilou@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
SynIc can be enabled regardless of the SControl mechanisim which can
register a GSI for a given SintRoute.
This behaviour can achived by setting enabling SIMP and then the guest
will poll on the message slot.
Once there is another message pending the host will set the message slot
with the pending flag.
When the guest polls from the message slot, in case the pending flag is
set it will write to the HV_X64_MSR_EOM indicating it has cleared the
slot and we can try and push our message again.
Signed-off-by: Jon Doron <arilou@gmail.com>
Reviewed-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Message-Id: <20220216102500.692781-2-arilou@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Replace the global variables with inlined helper functions. getpagesize() is very
likely annotated with a "const" function attribute (at least with glibc), and thus
optimization should apply even better.
This avoids the need for a constructor initialization too.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20220323155743.1585078-12-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Convert the TARGET_WORDS_BIGENDIAN macro, similarly to what was done
with HOST_BIG_ENDIAN. The new TARGET_BIG_ENDIAN macro is either 0 or 1,
and thus should always be defined to prevent misuse.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Suggested-by: Halil Pasic <pasic@linux.ibm.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220323155743.1585078-8-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Replace a config-time define with a compile time condition
define (compatible with clang and gcc) that must be declared prior to
its usage. This avoids having a global configure time define, but also
prevents from bad usage, if the config header wasn't included before.
This can help to make some code independent from qemu too.
gcc supports __BYTE_ORDER__ from about 4.6 and clang from 3.2.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
[ For the s390x parts I'm involved in ]
Acked-by: Halil Pasic <pasic@linux.ibm.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220323155743.1585078-7-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
GLib g_get_real_time() is an alternative to gettimeofday() which allows
to simplify our code.
For semihosting, a few bits are lost on POSIX host, but this shouldn't
be a big concern.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20220307070401.171986-5-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This adds required initialization of Error * variable.
Signed-off-by: Tong Ho <tong.ho@xilinx.com>
Reviewed-by: Francisco Iglesias <frasse.iglesias@gmail.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The timebase is allocated during spapr_realize_vcpu() and it's not
freed. This results in memory leaks when doing vcpu unplugs:
==636935==
==636935== 144 (96 direct, 48 indirect) bytes in 1 blocks are definitely lost in loss record 6
,461 of 8,135
==636935== at 0x4897468: calloc (vg_replace_malloc.c:760)
==636935== by 0x5077213: g_malloc0 (in /usr/lib64/libglib-2.0.so.0.6400.4)
==636935== by 0x507757F: g_malloc0_n (in /usr/lib64/libglib-2.0.so.0.6400.4)
==636935== by 0x93C3FB: cpu_ppc_tb_init (ppc.c:1066)
==636935== by 0x97BC2B: spapr_realize_vcpu (spapr_cpu_core.c:268)
==636935== by 0x97C01F: spapr_cpu_core_realize (spapr_cpu_core.c:337)
==636935== by 0xD4626F: device_set_realized (qdev.c:531)
==636935== by 0xD55273: property_set_bool (object.c:2273)
==636935== by 0xD523DF: object_property_set (object.c:1408)
==636935== by 0xD588B7: object_property_set_qobject (qom-qobject.c:28)
==636935== by 0xD52897: object_property_set_bool (object.c:1477)
==636935== by 0xD4579B: qdev_realize (qdev.c:333)
==636935==
This patch adds a cpu_ppc_tb_free() helper in hw/ppc/ppc.c to allow us
to free the timebase. This leak is then solved by calling
cpu_ppc_tb_free() in spapr_unrealize_vcpu().
Fixes: 6f4b5c3ec5 ("spapr: CPU hot unplug support")
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <20220329124545.529145-2-danielhb413@gmail.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
The patch set adding 9p functionality to darwin introduced an issue
where limits.h, which defines XATTR_SIZE_MAX, is included in 9p.c,
though the referenced constant is needed in 9p.h. This commit fixes that
issue by moving the definition of P9_XATTR_SIZE_MAX, which uses
XATTR_SIZE_MAX, to also be in 9p.c.
Additionally, this commit moves the location of the system headers
include in 9p.c to occur before the project headers (except osdep.h).
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/950
Fixes: 38d7fd68b0 ("9p: darwin: Move XATTR_SIZE_MAX->P9_XATTR_SIZE_MAX")
Signed-off-by: Will Cohen <wwcohen@gmail.com>
Message-Id: <20220331182651.887-1-wwcohen@gmail.com>
[thuth: Adjusted placement of osdep.h]
Signed-off-by: Thomas Huth <thuth@redhat.com>
The vhost-shadow-virtqueue.c build requires include files from
linux-headers/, so it cannot be built on non-Linux systems.
Fortunately it is only needed by vhost-vdpa, so move it there.
Acked-by: Eugenio Pérez <eperezma@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
In commit 84d43d2e82 we rearranged the logging of errors in
process_mapc(), and inadvertently dropped the trailing newlines
from the log messages. Restore them. The same commit also
attempted to switch the ICID printing to hex (which is how we
print ICIDs elsewhere) but only did half the job, adding the
0x prefix but leaving the format string at %d; correct to %x.
Fixes: 84d43d2e82 ("hw/intc/arm_gicv3_its: In MAPC with V=0, don't check rdbase field")
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
"0x%u" format is very misleading, replace by "0x%x".
Found running:
$ git grep -E '0x%[0-9]*([lL]*|" ?PRI)[dDuU]' hw/
Inspired-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-id: 20220323114718.58714-3-philippe.mathieu.daude@gmail.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
One less qemu-specific macro. It also helps to make some headers/units
only depend on glib, and thus moved in standalone projects eventually.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Richard W.M. Jones <rjones@redhat.com>
Be more explicit that the loop must roll at least once. Avoids the
following warning:
FAILED: libqemu-x86_64-softmmu.fa.p/hw_i386_amd_iommu.c.o
In function 'pte_get_page_mask',
inlined from 'amdvi_page_walk' at hw/i386/amd_iommu.c:945:25,
inlined from 'amdvi_do_translate' at hw/i386/amd_iommu.c:989:5,
inlined from 'amdvi_translate' at hw/i386/amd_iommu.c:1038:5:
hw/i386/amd_iommu.c:877:38: error: 'oldlevel' may be used uninitialized [-Werror=maybe-uninitialized]
877 | return ~((1UL << ((oldlevel * 9) + 3)) - 1);
| ~~~~~~~~~~~~~~~~^~~~
hw/i386/amd_iommu.c: In function 'amdvi_translate':
hw/i386/amd_iommu.c:906:41: note: 'oldlevel' was declared here
906 | unsigned level, present, pte_perms, oldlevel;
| ^~~~~~~~
cc1: all warnings being treated as errors
Having:
$ gcc --version
gcc (Debian 12-20220313-1) 12.0.1 20220314 (experimental)
Reported-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
g_new(T, n) is neater than g_malloc(sizeof(T) * n). It's also safer,
for two reasons. One, it catches multiplication overflowing size_t.
Two, it returns T * rather than void *, which lets the compiler catch
more type errors.
This commit only touches allocations with size arguments of the form
sizeof(T).
Patch created mechanically with:
$ spatch --in-place --sp-file scripts/coccinelle/use-g_new-etc.cocci \
--macro-file scripts/cocci-macro-file.h FILES...
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Acked-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20220315144156.1595462-4-armbru@redhat.com>
Reviewed-by: Pavel Dovgalyuk <Pavel.Dovgalyuk@ispras.ru>
Peter Maydell