Add ELF header checking to prevent processing input file which is not
QEMU x86_64 guest memory dump or even not ELF.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1013
Signed-off-by: Viktor Prutyanov <viktor.prutyanov@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220520084339.171684-1-viktor.prutyanov@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Commit 747421e949 ("Implements Backend
Program conventions for vhost-user-scsi") introduced fd-passing support
as part of implementing the vhost-user backend program conventions.
When fd passing is used the UNIX domain socket path is NULL and we must
not call unlink(2).
The unlink(2) call is necessary when the listen socket, lsock, was
created successfully since that means the UNIX domain socket is visible
in the file system.
Fixes: Coverity CID 1488353
Fixes: 747421e949 ("Implements Backend Program conventions for vhost-user-scsi")
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20220516155701.1789638-1-stefanha@redhat.com>
Reviewed-by: Raphael Norwitz <raphael.norwitz@nutanix.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
The qemu_*block() functions are meant to be be used with sockets (the
win32 implementation expects SOCKET)
Over time, those functions where used with Win32 SOCKET or
file-descriptors interchangeably. But for portability, they must only be
used with socket-like file-descriptors. FDs can use
g_unix_set_fd_nonblocking() instead.
Rename the functions with "socket" in the name to prevent bad usages.
This is effectively reverting commit f9e8cacc55 ("oslib-posix:
rename socket_set_nonblock() to qemu_set_nonblock()").
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Context structure in 64-bit Windows differs from 32-bit one and it
should be reflected in its name.
Signed-off-by: Viktor Prutyanov <viktor.prutyanov@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20220406171558.199263-2-viktor.prutyanov@redhat.com>
The GLib documentation says "a NULL-terminated array of GOptionEntrys"
so we'd better make sure there is a terminator that lets
g_option_context_add_main_entries() know when the end of the array has
been reached.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-id: 20220411150057.3009667-1-stefanha@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Sakshi Kaushik <sakshikaushik717@gmail.com>
Message-id: 20220406162410.8536-1-sakshikaushik717@gmail.com
[Name the iSCSI URL long option --iscsi-uri instead of --iscsi_uri for
consistency, fix --fd which was rejected due to an outdated
--socket-path check, and add missing entries[] terminator.
--Stefan]
Signed-off-by: Stefan Hajnoczi <stefanha@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>
I was running some historical tags for the last 10 years and got the
following warnings:
git log --use-mailmap --numstat --since "June 2010" | ~/src/gitdm.git/gitdm -n -l 5
alarson@ddci.com is an author name, probably not what you want
bad utf-8 ('utf-8' codec can't decode byte 0xe4 in position 552: invalid continuation byte) in patchm skipping
bad utf-8 ('utf-8' codec can't decode byte 0xe4 in position 342: invalid continuation byte) in patchm skipping
michael@ozlabs.org is an author name, probably not what you want
Oops...funky email nicta.com.au
bad utf-8 ('utf-8' codec can't decode byte 0xe9 in position 232: invalid continuation byte) in patchm skipping
Oops...funky email andreas.faerber
Grabbing changesets...done
Processed 76422 csets from 1902 developers
The following fixes try and alleviate that although I still get a
warning for Aaron which I think is from 9743cd5736.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20220315121251.2280317-6-alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: Aaron Larson <alarson@ddci.com>
Acked-by: Michael Ellerman <mpe@ellerman.id.au>
Cc: Andreas Färber <andreas.faerber@web.de>
Cc: Jason Wang <jasowang@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>
The check should be performed even if !have_system, as long as there is some hope that
vhost-user-gpu will be built. Store into have_vhost_user_gpu whether vhost-user-gpu
will be built; we will also use the variable to decide whether to look for libepoxy.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This patch adds the ability to generate files in drcov format. Primary
goal this script is to have coverage logfiles thatwork in Lighthouse.
Signed-off-by: Ivanov Arkady <arkadiy.ivanov@ispras.ru>
Message-Id: <163491884553.304355.13246023070235438959.stgit@pc-System-Product-Name>
[AJB: use g_ptr_array instead of slist]
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20220204204335.1689602-23-alex.bennee@linaro.org>
This will be needed as soon as config-poison.h moves from configure to
a meson custom_target (which is built at "ninja" time).
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
By default L2 is not enabled and is enabled by either using the
newly-introduced "l2" boolean argument, or by setting any of the L2
cache parameters using args. On specifying "l2=on", the default cache
configuration is used.
Signed-off-by: Mahmoud Mandour <ma.mandourr@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20210810134844.166490-5-ma.mandourr@gmail.com>
Message-Id: <20211026102234.3961636-17-alex.bennee@linaro.org>
This way of handling args is more lenient and sets a better framework to
parse boolean command line arguments.
Signed-off-by: Mahmoud Mandour <ma.mandourr@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20210810134844.166490-4-ma.mandourr@gmail.com>
Message-Id: <20211026102234.3961636-16-alex.bennee@linaro.org>
This adds an implementation of a simple L2 configuration, in which a
unified L2 cache (stores both blocks of instructions and data) is
maintained for each core separately, with no inter-core interaction
taken in account. The L2 cache is used as a backup for L1 and is only
accessed if the wanted block does not exist in L1.
In terms of multi-threaded user-space emulation, the same approximation
of L1 is done, a static number of caches is maintained, and each and
every memory access initiated by a thread will have to go through one of
the available caches.
An atomic increment is used to maintain the number of L2 misses per
instruction.
The default cache parameters of L2 caches is:
2MB cache size
16-way associativity
64-byte blocks
Signed-off-by: Mahmoud Mandour <ma.mandourr@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20210810134844.166490-3-ma.mandourr@gmail.com>
Message-Id: <20211026102234.3961636-15-alex.bennee@linaro.org>
Coverity points out that if the PDB file we're trying to read
has a header specifying a block_size of zero then we will
end up trying to divide by zero in pdb_ds_read_file().
Check for this and fail cleanly instead.
Fixes: Coverity CID 1458869
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Viktor Prutyanov <viktor.prutyanov@phystech.edu>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Viktor Prutyanov <viktor.prutyanov@phystech.edu>
Message-id: 20210910170656.366592-3-philmd@redhat.com
Message-Id: <20210901143910.17112-3-peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Coverity points out that we aren't checking the return value
from curl_easy_setopt().
Fixes: Coverity CID 1458895
Inspired-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Viktor Prutyanov <viktor.prutyanov@phystech.edu>
Tested-by: Viktor Prutyanov <viktor.prutyanov@phystech.edu>
Message-id: 20210910170656.366592-2-philmd@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The GBM library detection does not need to be in the configure script,
since it does not have any user-facing options (there are no
--enable-gbm or --disable-gbm switches). Let's move it to meson.build
instead, so we don't have to clutter config-host.mak with the related
switches.
Additionally, only check for GBM if it is really required, i.e. if we
either compile with OpenGL or with virglrenderer support.
Message-Id: <20210714085045.797168-1-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Correctly parsing plugin argument since they now must be provided as
full-form boolean parameters, e.g.:
-plugin ./contrib/plugins/libhowvec.so,verbose=on,inline=on
Also, introduced the argument "count" that accepts one opt to count
individually at a time.
Signed-off-by: Mahmoud Mandour <ma.mandourr@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20210730135817.17816-8-ma.mandourr@gmail.com>
Parsing boolean arguments correctly (e.g. pattern=on or source=false).
Introduced a new "track" argument that takes a [read|write] value. This
substitutes passing read or write to "arg=" that is deprecated.
Also, matches are now taken one by one through the "match" argument.
Signed-off-by: Mahmoud Mandour <ma.mandourr@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20210730135817.17816-7-ma.mandourr@gmail.com>
Since plugin arguments now expect boolean arguments, a plugin argument
name "sortby" now expects a value of "read", "write", or "address".
"io" arg is now expected to be passed as a full-form boolean parameter,
i.e. "io=on|true|yes|off|false|no"
Signed-off-by: Mahmoud Mandour <ma.mandourr@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20210730135817.17816-4-ma.mandourr@gmail.com>
Multicore L1 cache modelling is introduced and is supported for both
full system emulation and linux-user.
For full-system emulation, L1 icache and dcache are maintained for each
available core, since this information is exposed to the plugin through
`qemu_plugin_n_vcpus()`.
For linux-user, a static number of cores is assumed (default 1 core, and
can be provided as a plugin argument `cores=N`). Every memory access
goes through one of these caches, this approach is taken as it's
somewhat akin to what happens on real setup, where a program that
dispatches more threads than the available cores, they'll thrash
each other
Signed-off-by: Mahmoud Mandour <ma.mandourr@gmail.com>
Message-Id: <20210803151301.123581-2-ma.mandourr@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
It's not necessary to lock the address translation portion of the
vcpu_mem_access callback.
Signed-off-by: Mahmoud Mandour <ma.mandourr@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20210714172151.8494-3-ma.mandourr@gmail.com>
Message-Id: <20210720232703.10650-23-alex.bennee@linaro.org>
This manifests itself when associativity degree is greater than the
number of sets and FIFO is used, otherwise it's also a memory leak
whenever FIFO was used.
Signed-off-by: Mahmoud Mandour <ma.mandourr@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20210714172151.8494-2-ma.mandourr@gmail.com>
Message-Id: <20210720232703.10650-22-alex.bennee@linaro.org>
It makes sense to put our various interns in a group so we can see the
overall impact of GSoC and Outreachy on the project.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Mahmoud Mandour <ma.mandourr@gmail.com>
Cc: Ahmed Karaman <ahmedkhaledkaraman@gmail.com>
Cc: César Belley <cesar.belley@lse.epita.fr>
Message-Id: <20210720232703.10650-19-alex.bennee@linaro.org>
For some reason Alexander's contributions were not getting grouped
from the plain "edu" mapping.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alexander Bulekov <alxndr@bu.edu>
Message-Id: <20210720232703.10650-18-alex.bennee@linaro.org>
Warner confirmed he works for Netflix on IRC.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Warner Losh <imp@bsdimp.com>
Message-Id: <20210720232703.10650-17-alex.bennee@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <20210720232703.10650-15-alex.bennee@linaro.org>
I think this mainly comes from kernel-doc stuff imported into the QEMU
tree.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Message-Id: <20210720232703.10650-14-alex.bennee@linaro.org>
As per discussion at:
http://patchwork.ozlabs.org/project/qemu-devel/patch/20201004180443.2035359-19-f4bug@amsat.org/
I've added Bin's personal email as an individual contributor.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Acked-by: Bin Meng <bin.meng@windriver.com>
Cc: Ruimei Yan <ruimei.yan@windriver.com>
Cc: Xuzhou Cheng <xuzhou.cheng@windriver.com>
Message-Id: <20210720232703.10650-13-alex.bennee@linaro.org>
Luis acked on IRC:
#qemu@znc-oftc_2021-07-13.txt:[15:00:02] <lffpires> stsquad: "eldorado.org.br Eldorado" is fine
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Acked-by: Luis Pires <luis.pires@eldorado.org.br>
Message-Id: <20210720232703.10650-12-alex.bennee@linaro.org>
Minwoo's work from their personal address are treated as personal
contributions.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Acked-by: Klaus Jensen <k.jensen@samsung.com>
Cc: Gollu Appalanaidu <anaidu.gollu@samsung.com>
Cc: Minwoo Im <minwoo.im.dev@gmail.com>
Message-Id: <20210720232703.10650-11-alex.bennee@linaro.org>
Implemented FIFO and LRU eviction policies. Now one of the three
eviction policies can be chosen as an argument. On not specifying an
argument, LRU is used by default.
Signed-off-by: Mahmoud Mandour <ma.mandourr@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20210623125458.450462-4-ma.mandourr@gmail.com>
Message-Id: <20210709143005.1554-39-alex.bennee@linaro.org>
Added a cache modelling plugin that uses a static configuration used in
many of the commercial microprocessors and uses random eviction policy.
The purpose of the plugin is to identify the most cache-thrashing
instructions for both instruction cache and data cache.
Signed-off-by: Mahmoud Mandour <ma.mandourr@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20210623125458.450462-2-ma.mandourr@gmail.com>
Message-Id: <20210709143005.1554-37-alex.bennee@linaro.org>
Log instruction execution and memory access to a file.
This plugin can be used for reverse engineering or for side-channel analysis
using QEMU.
Signed-off-by: Alexandre Iooss <erdnaxe@crans.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20210702081307.1653644-2-erdnaxe@crans.org>
Message-Id: <20210709143005.1554-35-alex.bennee@linaro.org>
Lets spot the obvious errors.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20210709143005.1554-34-alex.bennee@linaro.org>
Viktor Prutyanov
Stefan Hajnoczi
Marc-André Lureau
Paolo Bonzini
Richard Henderson
Sakshi Kaushik
Alex Bennée
Markus Armbruster
Ivanov Arkady
Mahmoud Mandour
Peter Maydell
Thomas Huth
Alexandre Iooss