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>
In user-mode emulation there is a small race between preexit_cleanup
and exit_group() which means we may end up calling instrumented
instructions before the kernel reaps child threads. To solve this we
implement a new helper which ensures the callbacks are flushed along
with any translations before we let the host do it's a thing.
While we are at it make the documentation of
qemu_plugin_register_atexit_cb clearer as to what the user can expect.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Mahmoud Mandour <ma.mandourr@gmail.com>
Acked-by: Warner Losh <imp@bsdimp.com>
Message-Id: <20210720232703.10650-21-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>
Lets try and keep them that way.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20210720232703.10650-10-alex.bennee@linaro.org>
Fixes: 49a6f3bffb ("target/arm: Correct the encoding of MDCCSR_EL0 and DBGDSCRint")
Fixes: 5a07192a04 ("target/i386: Fix handling of k_gs_base register in 32-bit mode in gdbstub")
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Cc: Nick Hudson <hnick@vmware.com>
Cc: Marek Dolata <mkdolata@us.ibm.com>
Message-Id: <20210720232703.10650-7-alex.bennee@linaro.org>
It was pointed out in review of the previous patch that the if leg
isn't needed as the for loop will not enter on an empty $device_archs.
Fixes: d1d5e9eefd ("configure: allow the selection of alternate config in the build")
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210720232703.10650-5-alex.bennee@linaro.org>
While we do mention some of this stuff in the various daemons and
manuals the subtleties of the socket and memory sharing are sometimes
missed. This document attempts to give some background on vhost-user
daemons in general terms.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20210720232703.10650-4-alex.bennee@linaro.org>
While we are at it add a brief preamble that explains some of the
common concepts in QEMU's device emulation which will hopefully lead
to less confusing about our dizzying command line options.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Daniel P. Berrangé <berrange@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20210720232703.10650-3-alex.bennee@linaro.org>
Alias targets have a different name than the alias property itself
(e.g. a machine's pflash0 might be an alias of a property named 'drive').
When the target's getter or setter invokes the visitor, it will use
a different name than what the caller expects, and the visitor will
not be able to find it (or will consume erroneously).
The solution is for alias getters and setters to wrap the incoming
visitor, and forward the sole field that the target is expecting while
renaming it appropriately.
This bug has been there forever, but it was exposed after -M parsing
switched from QemuOptions and StringInputVisitor to keyval and
QObjectInputVisitor. Before, the visitor ignored the name. Now, it
checks "drive" against what was passed on the command line and finds
that no such property exists.
Fixes: https://gitlab.com/qemu-project/qemu/-/issues/484
Reported-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This new adaptor visitor takes a single field of the adaptee, and exposes it
with a different name.
This will be used for QOM alias properties. Alias targets can of course
have a different name than the alias property itself (e.g. a machine's
pflash0 might be an alias of a property named 'drive'). When the target's
getter or setter invokes the visitor, it will use a different name than
what the caller expects, and the visitor will not be able to find it
(or will consume erroneously).
The solution is for alias getters and setters to wrap the incoming
visitor, and forward the sole field that the target is expecting while
renaming it appropriately.
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
GitLab will happily publish pages generated by the latest CI pipeline
from any branch:
https://docs.gitlab.com/ee/user/project/pages/introduction.html
"Remember that GitLab Pages are by default branch/tag agnostic
and their deployment relies solely on what you specify in
.gitlab-ci.yml. You can limit the pages job with the only
parameter, whenever a new commit is pushed to a branch used
specifically for your pages."
The current "pages" job is not limited, so it is happily publishing
docs content from any branch/tag in qemu.git that gets pushed to.
This means we're potentially publishing from the "staging" branch
or worse from outdated "stable-NNN" branches
This change restricts it to only publish from the default branch
in the main repository. For contributor forks, however, we allow
it to publish from any branch, since users will have arbitrarily
named topic branches in flight at any time.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20210723113051.2792799-1-berrange@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Both files logically belong to "Memory API" and are not yet listed
anywhere else explicitly. Let's add them to "Memory API".
Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Peter Xu <peterx@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Acked-by: Peter Xu <peterx@redhat.com>
Message-Id: <20210723100532.27353-4-david@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Peter and myself volunteered to help out co-maintaining "Memory API"
with Paolo, so let's update the MAINTAINERS file.
Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Peter Xu <peterx@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20210723100532.27353-3-david@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Edurdo asked me to take over co-maintaining "Host Memory Backends" with
Igor, as Eduardo has plenty of other things to look after.
Thanks a lot Eduardo for your excellent work in the past!
Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Igor Mammedov <imammedo@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Acked-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20210723100532.27353-2-david@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Some cpu properties have to be set only for cpu models in builtin_x86_defs,
registered with x86_register_cpu_model_type, and not for
cpu models "base", "max", and the subclass "host".
These properties are the ones set by function x86_cpu_apply_props,
(also including kvm_default_props, tcg_default_props),
and the "vendor" property for the KVM and HVF accelerators.
After recent refactoring of cpu, which also affected these properties,
they were instead set unconditionally for all x86 cpus.
This has been detected as a bug with Nested on AMD with cpu "host",
as svm was not turned on by default, due to the wrongful setting of
kvm_default_props via x86_cpu_apply_props, which set svm to "off".
Rectify the bug introduced in commit "i386: split cpu accelerators"
and document the functions that are builtin_x86_defs-only.
Signed-off-by: Claudio Fontana <cfontana@suse.de>
Tested-by: Alexander Bulekov <alxndr@bu.edu>
Fixes: f5cc5a5c ("i386: split cpu accelerators from cpu.c,"...)
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/477
Message-Id: <20210723112921.12637-1-cfontana@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
All MBZ in CR3 must be zero (APM2 15.5)
Added checks in both helper_vmrun and helper_write_crN.
When EFER.LMA is zero the upper 32 bits needs to be zeroed.
Signed-off-by: Lara Lazier <laramglazier@gmail.com>
Message-Id: <20210723112740.45962-1-laramglazier@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
modinfo runs the preprocessor and therefore needs all generated input files
to be there. The "depends" clause does not work in Meson 0.55.3, so for
now use "input".
Part #2: Update the rule for target-specific modules too.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-Id: <20210723120156.1183920-1-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Before commit 49afbca3b0 ("virtio-gpu: drop
use_virgl_renderer"), use_virgl_renderer was preventing calling GL
functions from non-GL context threads. The innocuously looking
g->parent_obj.use_virgl_renderer = false;
was set the first time virtio_gpu_gl_reset() was called, during
pc_machine_reset() in the main thread. Further virtio_gpu_gl_reset()
calls in IO threads, without associated GL context, were thus skipping
GL calls and avoided warnings or crashes (see also
https://gitlab.freedesktop.org/virgl/virglrenderer/-/issues/226).
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20210702123221.942432-1-marcandre.lureau@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Do not instantiate an extra default VGA device if -device virtio-vga-gl
is provided.
Related to commit b36eb8860f ("virtio-gpu:
add virtio-vga-gl")
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20210701062421.721414-1-marcandre.lureau@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This avoids failing to initialize virgl and crashing later on, and clear
the user expectations.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <20210705104218.1161101-1-marcandre.lureau@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This reverts commit 86dbcdd9c7.
The pre-save assert is gone now, so the migration blocker
is not needed any more.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20210721093347.338536-3-kraxel@redhat.com>
Since commit 551dbd0846 ("migration: check pre_save return in
vmstate_save_state") the pre_save hook can fail. So lets finally
use that to drop the guest-triggerable assert in qxl_pre_save().
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20210721093347.338536-2-kraxel@redhat.com>
The vhost_kernel and vhost_vdpa variables should be pre-initialized with
the $default_feature setting so that these features get disabled when
the user runs the configure scripts with --without-default-features.
Reported-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20210713093155.677589-5-thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The "xen" variable should either contain "enabled", "disabled" or
nothing (for auto detection). But when the user currently runs the
configure script with --without-default-features, it gets set to
"no" instead. This does not work as expected, the feature will still
be enabled if the Xen headers are present. Thus set the variable
to "disabled" instead if default_feature switch has been set.
Reported-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20210713093155.677589-4-thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
There's no reason why we should keep VNC enabled when the user
specified --without-default-features.
Reported-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20210713093155.677589-3-thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
A typo prevents that many features get disabled when the user
runs "configure" with the --without-default-features switch.
Reported-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20210713093155.677589-2-thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
modinfo runs the preprocessor and therefore needs all generated input files
to be there. The "depends" clause does not work in Meson 0.55.3, so for
now use "input".
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
We recently bumped our requirement for Clang to at least version 6.0.
And according to:
https://releases.llvm.org/6.0.0/tools/clang/docs/AttributeReference.html
Clang v6.0 supports the alloc_size attribute. Thus we can drop this
check in the configure script now.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20210714072855.785566-1-thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
EFER.SVME has to be set, and EFER reserved bits must
be zero.
In addition the combinations
* EFER.LMA or EFER.LME is non-zero and the processor does not support LM
* non-zero EFER.LME and CR0.PG and zero CR4.PAE
* non-zero EFER.LME and CR0.PG and zero CR0.PE
* non-zero EFER.LME, CR0.PG, CR4.PAE, CS.L and CS.D
are all invalid.
(AMD64 Architecture Programmer's Manual, V2, 15.5)
Signed-off-by: Lara Lazier <laramglazier@gmail.com>
Message-Id: <20210721152651.14683-3-laramglazier@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
All MBZ bits in CR4 must be zero. (APM2 15.5)
Added reserved bitmask and added checks in both
helper_vmrun and helper_write_crN.
Signed-off-by: Lara Lazier <laramglazier@gmail.com>
Message-Id: <20210721152651.14683-2-laramglazier@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The APM2 states that The processor takes a virtual INTR interrupt
if V_IRQ and V_INTR_PRIO indicate that there is a virtual interrupt pending
whose priority is greater than the value in V_TPR.
Signed-off-by: Lara Lazier <laramglazier@gmail.com>
Message-Id: <20210721152651.14683-1-laramglazier@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Commit d8fb7d0969 ("vl: switch -M parsing
to keyval") stopped adding the "machine" QemuOptsList. This causes
"machine" options to not show up in QMP query-command-line-options
output. For example, libvirt cannot detect that kernel_irqchip support
is available.
Adjust the "machine" opts enumeration in
qmp_query_command_line_options() so that options are properly reported.
Fixes: d8fb7d0969 ("vl: switch -M parsing to keyval")
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20210721151055.424580-1-stefanha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
