Coverity complains about use of uninitialized Evt struct.
The EVT_SET_TYPE and similar setters use deposit32() on fields
in the struct, so they read the uninitialized existing values.
In cases where we don't set all the fields in the event struct
we'll end up leaking random uninitialized data from QEMU's
stack into the guest.
Initializing the struct with "Evt evt = {};" ought to satisfy
Coverity and fix the data leak.
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reported-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 1526493784-25328-2-git-send-email-eric.auger@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The ZynqMP contains two instances of a generic DMA, the GDMA, located in the
FPD (full power domain), and the ADMA, located in LPD (low power domain). This
patch adds these two DMAs to the ZynqMP board.
Signed-off-by: Francisco Iglesias <frasse.iglesias@gmail.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id: 20180503214201.29082-3-frasse.iglesias@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Add a model of the generic DMA found on Xilinx ZynqMP.
Signed-off-by: Francisco Iglesias <frasse.iglesias@gmail.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id: 20180503214201.29082-2-frasse.iglesias@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Generate an XML description for the cp-regs.
Register these regs with the gdb_register_coprocessor().
Add arm_gdb_get_sysreg() to use it as a callback to read those regs.
Add a dummy arm_gdb_set_sysreg().
Signed-off-by: Abdallah Bouassida <abdallah.bouassida@lauterbach.com>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 1524153386-3550-4-git-send-email-abdallah.bouassida@lauterbach.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This is a preparation for the coming feature of creating dynamically an XML
description for the ARM sysregs.
Add "_S" suffix to the secure version of sysregs that have both S and NS views
Replace (S) and (NS) by _S and _NS for the register that are manually defined,
so all the registers follow the same convention.
Signed-off-by: Abdallah Bouassida <abdallah.bouassida@lauterbach.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 1524153386-3550-3-git-send-email-abdallah.bouassida@lauterbach.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This is a preparation for the coming feature of creating dynamically an XML
description for the ARM sysregs.
A register has ARM_CP_NO_GDB enabled will not be shown in the dynamic XML.
This bit is enabled automatically when creating CP_ANY wildcard aliases.
This bit could be enabled manually for any register we want to remove from the
dynamic XML description.
Signed-off-by: Abdallah Bouassida <abdallah.bouassida@lauterbach.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 1524153386-3550-2-git-send-email-abdallah.bouassida@lauterbach.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Merge remote-tracking branch 'remotes/rth/tags/pull-fpu-20180517' into staging
Roundup of softfloat patches
# gpg: Signature made Thu 17 May 2018 23:44:04 BST
# gpg: using RSA key 64DF38E8AF7E215F
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>"
# Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A 05C0 64DF 38E8 AF7E 215F
* remotes/rth/tags/pull-fpu-20180517: (28 commits)
fpu/softfloat: Define floatN_silence_nan in terms of parts_silence_nan
fpu/softfloat: Clean up parts_default_nan
fpu/softfloat: Define floatN_default_nan in terms of parts_default_nan
fpu/softfloat: Pass FloatClass to pickNaNMulAdd
fpu/softfloat: Pass FloatClass to pickNaN
fpu/softfloat: Make is_nan et al available to softfloat-specialize.h
fpu/softfloat: Specialize on snan_bit_is_one
fpu/softfloat: Remove floatX_maybe_silence_nan
fpu/softfloat: Use float*_silence_nan in propagateFloat*NaN
target/s390x: Remove floatX_maybe_silence_nan from conversions
target/riscv: Remove floatX_maybe_silence_nan from conversions
target/mips: Remove floatX_maybe_silence_nan from conversions
target/m68k: Use floatX_silence_nan when we have already checked for SNaN
target/hppa: Remove floatX_maybe_silence_nan from conversions
target/arm: Remove floatX_maybe_silence_nan from conversions
target/arm: Use floatX_silence_nan when we have already checked for SNaN
fpu/softfloat: re-factor float to float conversions
fpu/softfloat: Partial support for ARM Alternative half-precision
target/arm: squash FZ16 behaviour for conversions
target/arm: convert conversion helpers to fpst/ahp_flag
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
When we call addIOThread, the epollfd created in aio_context_setup,
but not close it in the process of delIOThread, so the epollfd will leak.
Reorder the code in aio_epoll_disable and reuse it.
Signed-off-by: Jie Wang <wangjie88@huawei.com>
Message-Id: <1526517763-11108-1-git-send-email-wangjie88@huawei.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
[Mention change to aio_epoll_disable in commit message. - Fam]
Signed-off-by: Fam Zheng <famz@redhat.com>
The current code was not correctly handling 64 B (Max USB 1.1 payload size)
packets and therefore preventing some of the messages from smart card to
pass through to the guest.
If the smart card in host responded with 34 B of data in APDU layer, the
CCID headers added up to 64 B. The packet was send, but not correctly
committed per USB specification (8.5.3.2 Variable-length Data Stage):
> When all of the data structure is returned to the host, the function
> should indicate that the Data stage is ended by returning a packet
> that is shorter than the MaxPacketSize for the pipe. If the data
> structure is an exact multiple of wMaxPacketSize for the pipe, the
> function will return a zero-length packet to indicate the end of the
> Data stage.
This lead the guest applications to timeout while waiting for the rest
of data (the emulation layer is answering with NAK until the timeout).
This patch is checking the current maximum packet size and if the
payload of this size is detected, the message buffer is not yet released.
With the next call, the empty buffer is sent and the message buffer
is finally released.
Signed-off-by: Jakub Jelen <jjelen@redhat.com>
Message-id: 20180516115544.3897-2-jjelen@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Since cc847bfd16, CCID card-passthru
fails to intialize, because it changed a debug line to an error,
probably by mistake. Change it back to a DPRINTF debug.
(solves Boxes creating VM with smartcard passthru failing to start)
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20180515153039.27514-1-marcandre.lureau@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
In commit 2ab858c6c3 we added a use of the 'surf' variable
in sdl2_2d_update() that was unfortunately placed above the
early-exit-if-NULL check. Move it to where it ought to be.
Fixes: Coverity CID 1390598
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20180515185814.1374-1-peter.maydell@linaro.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
x_keymap.o is common to the SDL and GTK+ modules, and it causes the
QEMU binary to link to the X11 libraries. Add it separately to the
modules to keep the main QEMU binary smaller.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1526560782-18732-1-git-send-email-pbonzini@redhat.com
[ kraxel: fix lm32 target build (milkymist-tmu2) ]
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
After f771c5440e it is possible to select device and
head which to take screendump from. And even though we check if
provided head number falls within range, it may still happen that
the console has no surface yet leading to SIGSEGV:
qemu.git $ ./x86_64-softmmu/qemu-system-x86_64 \
-qmp stdio \
-device virtio-vga,id=video0,max_outputs=4
{"execute":"qmp_capabilities"}
{"execute":"screendump", "arguments":{"filename":"/tmp/screen.ppm", "device":"video0", "head":1}}
Segmentation fault
#0 0x00005628249dda88 in ppm_save (filename=0x56282826cbc0 "/tmp/screen.ppm", ds=0x0, errp=0x7fff52a6fae0) at ui/console.c:304
#1 0x00005628249ddd9b in qmp_screendump (filename=0x56282826cbc0 "/tmp/screen.ppm", has_device=true, device=0x5628276902d0 "video0", has_head=true, head=1, errp=0x7fff52a6fae0) at ui/console.c:375
#2 0x00005628247740df in qmp_marshal_screendump (args=0x562828265e00, ret=0x7fff52a6fb68, errp=0x7fff52a6fb60) at qapi/qapi-commands-ui.c:110
Here, @ds from frame #0 (or @surface from frame #1) is
dereferenced at the very beginning of ppm_save(). And because
it's NULL crash happens.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-id: cb05bb1909daa6ba62145c0194aafa05a14ed3d1.1526569138.git.mprivozn@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Isolate the target-specific choice to 3 functions instead of 6.
The code in floatx80_default_nan tried to be over-general. There are
only two targets that support this format: x86 and m68k. Thus there
is no point in inventing a mechanism for snan_bit_is_one.
Move routines that no longer have ifdefs out of softfloat-specialize.h.
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reduce the number of ifdefs. Correct the result for OpenRISC
and TriCore (although TriCore fixed in target-specific code).
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Isolate the target-specific choice to 2 functions instead of 6.
The code in float16_default_nan was only correct for ARM, MIPS, and X86.
Though float16 support is rare among our targets.
The code in float128_default_nan was arguably wrong for Sparc. While
QEMU supports the Sparc 128-bit insns, no real cpu enables it.
The code in floatx80_default_nan tried to be over-general. There are
only two targets that support this format: x86 and m68k. Thus there
is no point in inventing a value for snan_bit_is_one.
Move routines that no longer have ifdefs out of softfloat-specialize.h.
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
For each operand, pass a single enumeration instead of a pair of booleans.
The commit also merges multiple different ifdef-selected implementations
of pickNaNMulAdd into a single function whose body is ifdef-selected.
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
For each operand, pass a single enumeration instead of a pair of booleans.
The commit also merges multiple different ifdef-selected implementations
of pickNaN into a single function whose body is ifdef-selected.
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
We will need these helpers within softfloat-specialize.h, so move
the definitions above the include. After specialization, they will
not always be used so mark them to avoid the Werror.
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Only MIPS requires snan_bit_is_one to be variable. While we are
specializing softfloat behaviour, allow other targets to eliminate
this runtime check.
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: Yongbok Kim <yongbok.kim@mips.com>
Cc: David Gibson <david@gibson.dropbear.id.au>
Cc: Alexander Graf <agraf@suse.de>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
These functions are now unused.
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
We have already checked the arguments for SNaN;
we don't need to do it again.
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This is now handled properly by the generic softfloat code.
Cc: Alexander Graf <agraf@suse.de>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This is now handled properly by the generic softfloat code.
Cc: Palmer Dabbelt <palmer@sifive.com>
Cc: Sagar Karandikar <sagark@eecs.berkeley.edu>
Cc: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Reviewed-by: Michael Clark <mjc@sifive.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This is now handled properly by the generic softfloat code.
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: Yongbok Kim <yongbok.kim@mips.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This is now handled properly by the generic softfloat code.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This is now handled properly by the generic softfloat code.
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This allows us to delete a lot of additional boilerplate
code which is no longer needed.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
For float16 ARM supports an alternative half-precision format which
sacrifices the ability to represent NaN/Inf in return for a higher
dynamic range. The new FloatFmt flag, arm_althp, is then used to
modify the behaviour of canonicalize and round_canonical with respect
to representation and exception raising.
Usage of this new flag waits until we re-factor float-to-float conversions.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
The ARM ARM specifies FZ16 is suppressed for conversions. Rather than
pushing this logic into the softfloat code we can simply save the FZ
state and temporarily disable it for the softfloat call.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Instead of passing env and leaving it up to the helper to get the
right fpstatus we pass it explicitly. There was already a get_fpstatus
helper for neon for the 32 bit code. We also add an get_ahp_flag() for
passing the state of the alternative FP16 format flag. This leaves
scope for later tracking the AHP state in translation flags.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
With a canonical representation of NaNs, we can silence an SNaN
immediately rather than delay until the final format is known.
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
With a canonical representation of NaNs, we can return the
default nan directly rather than delay the expansion until
the final format is known.
Note one case where we uselessly assigned to a.sign, which was
overwritten/ignored later when expanding float_class_dnan.
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Shift the NaN fraction to a canonical position, much like we
do for the fraction of normal numbers. This will facilitate
manipulation of NaNs within the shared code paths.
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
We want to be able to specialize on the canonical representation.
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
The new function assumes that the input is an SNaN and
does not double-check.
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Move the ifdef inside the relevant functions instead of
duplicating the function declarations.
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
The significand is passed to normalizeRoundAndPackFloat128() as high
first, low second. The current code passes the integer first, so the
result is incorrectly shifted left by 64 bits.
This bug affects the emulation of s390x instruction CXLGBR (convert
from logical 64-bit binary-integer operand to extended BFP result).
Cc: qemu-stable@nongnu.org
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Petr Tesarik <ptesarik@suse.com>
Message-Id: <20180511071052.1443-1-ptesarik@suse.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* KnightsMill CPU model
* CLDEMOTE(Demote Cache Line) cpu feature
* pc-i440fx-2.13 and pc-q35-2.13 machine-types
* Add model-specific cache information to EPYC CPU model
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Merge remote-tracking branch 'remotes/ehabkost/tags/x86-next-pull-request' into staging
x86 queue, 2018-05-15
* KnightsMill CPU model
* CLDEMOTE(Demote Cache Line) cpu feature
* pc-i440fx-2.13 and pc-q35-2.13 machine-types
* Add model-specific cache information to EPYC CPU model
# gpg: Signature made Tue 15 May 2018 22:53:12 BST
# gpg: using RSA key 2807936F984DC5A6
# gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>"
# Primary key fingerprint: 5A32 2FD5 ABC4 D3DB ACCF D1AA 2807 936F 984D C5A6
* remotes/ehabkost/tags/x86-next-pull-request:
i386: Add new property to control cache info
pc: add 2.13 machine types
i386: Initialize cache information for EPYC family processors
i386: Add cache information in X86CPUDefinition
i386: Helpers to encode cache information consistently
x86/cpu: Enable CLDEMOTE(Demote Cache Line) cpu feature
i386: add KnightsMill cpu model
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Commit c22a03454 QAPIfied option parsing in the NFS block driver, but
forgot to remove all the options we processed. Therefore, we get an
error in bdrv_open_inherit(), which thinks the remaining options are
invalid. Trying to open an NFS image will result in an error like this:
Block protocol 'nfs' doesn't support the option 'server.host'
Remove all options from the QDict to make the NFS driver work again.
Cc: qemu-stable@nongnu.org
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-id: 20180516160816.26259-1-kwolf@redhat.com
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>
Signed-off-by: Jeff Cody <jcody@redhat.com>
Don't throw away local_err, but propagate it to errp.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-id: 20180516161034.27440-1-kwolf@redhat.com
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>
Signed-off-by: Jeff Cody <jcody@redhat.com>
Eric Auger