We originally naively treated expansion as safe because we expected
each new CPU/thread to appear in order. However the -M raspi2 model
triggered a case where a new high cpu_index thread started executing
just before a smaller one.

Clean this up by converting the GArray into the simpler GPtrArray and
then holding a lock for the expansion.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Cc: Alexandre Iooss <erdnaxe@crans.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20221027183637.2772968-29-alex.bennee@linaro.org>

We used to rely on QEMU_CFLAGS to expose the debug flags but now this
is synthesised by meson and only available to the main build. Add our
own flags if we detect the build has been enabled with
CONFIG_DEBUG_TCG (which is the default for --enable-debug anyway).

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20221027183637.2772968-28-alex.bennee@linaro.org>

The 'kdgb' is allocating memory in get_kdbg(), but it is not freed in
error path. So fix that.

Signed-off-by: lu zhipeng <luzhipeng@cestc.cn>
Reviewed-by: Viktor Prutyanov <viktor.prutyanov@phystech.edu>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20221007020128.760-1-luzhipeng@cestc.cn>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

again to the academic group map.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Cc: Frédéric Pétrot <frederic.petrot@univ-grenoble-alpes.fr>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220926134609.3301945-7-alex.bennee@linaro.org>

Please confirm this is the correct mapping for you.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Simon Safar <simon@simonsafar.com>
Message-Id: <20220926134609.3301945-2-alex.bennee@linaro.org>

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Acked-by: Hyman Huang(黄勇) <huangy81@chinatelecom.cn>
Message-Id: <20220929114231.583801-52-alex.bennee@linaro.org>

The English website (http://english.is.cas.cn/) in on a slightly
different domain but has the same logo as http://www.iscas.ac.cn/

.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Weiwei Li <liweiwei@iscas.ac.cn>
Message-Id: <20220929114231.583801-51-alex.bennee@linaro.org>

His blog confirms he is not affiliated with Loongson.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: WANG Xuerui <git@xen0n.name>
Message-Id: <20220929114231.583801-50-alex.bennee@linaro.org>

Also map his old codesourcery address to his canonical address.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Cc: Paul Brook <paul@nowt.org>
Message-Id: <20220929114231.583801-49-alex.bennee@linaro.org>

Please confirm you are happy with this mapping.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Acked-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20220929114231.583801-48-alex.bennee@linaro.org>

The purpose of the matches was to only track the execution of
instructions we care about. Without resetting skip to the value at the
start of the block we end up dumping all instructions after the match
with the consequent load on the instrumentation.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Cc: Alexandre Iooss <erdnaxe@crans.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220929114231.583801-40-alex.bennee@linaro.org>

Sometimes the whole execlog is just two much so add the ability to
filter by instruction opcode or address.

[AJB: this shows for example

 qemu-system-aarch64 -display none -serial mon:stdio \
   -M virt -cpu max \
   -semihosting-config enable=on \
   -kernel ./tests/tcg/aarch64-softmmu/memory-sve \
   -plugin ./contrib/plugins/libexeclog.so,ifilter=st1w,afilter=0x40001808 -d plugin -D plugin.out

the st1w SVE instruction is not instrumenting its stores.]

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alexandre Iooss <erdnaxe@crans.org>
Cc: Robert Henry <robhenry@microsoft.com>
Cc: Aaron Lindsay <aaron@os.amperecomputing.com>
Message-Id: <20220929114231.583801-36-alex.bennee@linaro.org>

We allocate VuVirtqElement with g_malloc() in
virtqueue_alloc_element(), but free it with free() in
vhost-user-blk.c.  Harmless, but use g_free() anyway.

One of the calls is guarded by a "not null" condition.  Useless,
because it cannot be null (it's dereferenced right before), and even
it it could be, free() and g_free() do the right thing.  Drop the
conditional.

Fixes: Coverity CID 1490290
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Raphael Norwitz <raphael.norwitz@nutanix.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <20220630085219.1305519-1-armbru@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20220707163720.1421716-5-berrange@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>

We were not building the vhost-user-blk server due to 32 bit
compilation problems. The problem was due to format string types so
fix that and then enable the build. Tweak the rule to follow the same
rules as other vhost-user daemons.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20220321153037.3622127-12-alex.bennee@linaro.org>
Message-Id: <20220524154056.2896913-2-alex.bennee@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Raphael Norwitz <raphael.norwitz@nutanix.com>

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 747421e9 ("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: 747421e9 ("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 f9e8cacc ("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>

Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@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 9743cd57.

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>

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>

Signed-off-by: Mahmoud Mandour <ma.mandourr@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20210810134844.166490-2-ma.mandourr@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20211026102234.3961636-14-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>

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: <20210730135817.17816-6-ma.mandourr@gmail.com>

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: <20210730135817.17816-5-ma.mandourr@gmail.com>