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2021-11-06migration: Check that postcopy fd's are not NULLJuan Quintela1-0/+4
If postcopy has finished, it frees the array. But vhost-user unregister it at cleanup time. fixes: c4f7538 Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2021-11-05ui/gtk-egl: blitting partial guest fb to the proper scanout surfaceDongwon Kim1-4/+21
eb_fb_blit should be able to blit partial image of guest display (blob res) in case multiple displays are configured for the guest and they are set as extended- desktop mode. v2: egl_fb includes dmabuf info then make egl_fb_blit position and size parameters programmed in dmabuf structure (previously position/size parameters were given to egl_fb_blit separately) (Vivek Kasireddy) changed the commit message as there is no interface change to egl_fb_blit Cc: Gerd Hoffmann <kraxel@redhat.com> Cc: Vivek Kasireddy <vivek.kasireddy@intel.com> Signed-off-by: Dongwon Kim <dongwon.kim@intel.com> Message-Id: <20211104065153.28897-6-dongwon.kim@intel.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2021-11-05ui/gtk: gd_draw_event returns FALSE when no cairo surface is boundDongwon Kim1-0/+3
gd_draw_event shouldn't try to repaint if surface does not exist for the VC. Cc: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Dongwon Kim <dongwon.kim@intel.com> Message-Id: <20211104065153.28897-4-dongwon.kim@intel.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2021-11-05ui/gtk-egl: guest fb texture needs to be regenerated when reinitializing eglDongwon Kim1-0/+4
If guest fb is backed by dmabuf (blob-resource), the texture bound to the old context needs to be recreated in case the egl is re-initialized (e.g. new window for vc is created in case of detaching/reattaching of the tab) v2: call egl_dmabuf_release_texutre instead of putting 0 to dmabuf->texture (Vivek Kasireddy) Cc: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Dongwon Kim <dongwon.kim@intel.com> Message-Id: <20211104065153.28897-3-dongwon.kim@intel.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2021-11-05ui/gtk-egl: make sure the right context is set as the currentDongwon Kim1-0/+6
Making the vc->gfx.ectx current before handling texture associated with it Cc: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Dongwon Kim <dongwon.kim@intel.com> Message-Id: <20211104065153.28897-2-dongwon.kim@intel.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2021-11-05ui/gtk-egl: un-tab and re-tab should destroy egl surface and contextDongwon Kim1-0/+20
An old esurface should be destroyed and set to be NULL when doing un-tab and re-tab so that a new esurface an context can be created for the window widget that those will be bound to. v2: enabling opengl specific routines only when CONFIG_OPENGL is set Cc: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Dongwon Kim <dongwon.kim@intel.com> Signed-off-by: Khairul Anuar Romli <khairul.anuar.romli@intel.com> Message-Id: <20211104065153.28897-1-dongwon.kim@intel.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2021-11-05virtio-gpu: splitting one extended mode guest fb into n-scanoutsDongwon Kim5-13/+25
When guest is running Linux/X11 with extended multiple displays mode enabled, the guest shares one scanout resource each time containing whole surface rather than sharing individual display output separately. This extended frame is properly splited and rendered on the corresponding scanout surfaces but not in case of blob-resource (zero copy). This code change lets the qemu split this one large surface data into multiple in case of blob-resource as well so that each sub frame then can be blitted properly to each scanout. v2: resizing qemu console in virtio_gpu_update_dmabuf to scanout's width and height v3: updating stub function of virtio_gpu_update_dmabuf to match the type Cc: Gerd Hoffmann <kraxel@redhat.com> Cc: Vivek Kasireddy <vivek.kasireddy@intel.com> Signed-off-by: Dongwon Kim <dongwon.kim@intel.com> Message-Id: <20211104065153.28897-5-dongwon.kim@intel.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2021-11-05Fix virtio-net-pci* "vectors" compatEduardo Habkost1-1/+1
hw_compat_5_2 has an issue: it affects only "virtio-net-pci" but not "virtio-net-pci-transitional" and "virtio-net-pci-non-transitional". The solution is to use the "virtio-net-pci-base" type in compat_props. Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1999141 Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Jean-Louis Dupond <jean-louis@dupond.be> Acked-by: Jason Wang <jasowang@redhat.com> Acked-by: Jean-Louis Dupond <jean-louis@dupond.be> Reviewed-by: Cornelia Huck <cohuck@redhat.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
2021-11-05e1000: fix tx re-entrancy problemJon Maloy1-0/+7
The fact that the MMIO handler is not re-entrant causes an infinite loop under certain conditions: Guest write to TDT -> Loopback -> RX (DMA to TDT) -> TX We now eliminate the effect of this problem locally in e1000, by adding a boolean in struct E1000State indicating when the TX side is busy. This will cause any entering new call to return early instead of interfering with the ongoing work, and eliminates any risk of looping. This is intended to address CVE-2021-20257. Signed-off-by: Jon Maloy <jmaloy@redhat.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
2021-11-04tests/vm/openbsd: Update to release 7.0Richard Henderson1-4/+3
There are two minor changes required in the script for the network configuration of the newer release. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Tested-by: Thomas Huth <thuth@redhat.com> Message-Id: <20211018205313.3526915-1-richard.henderson@linaro.org> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
2021-11-04tests/tcg: remove debug polluting make outputAlex Bennée1-1/+0
Fixes: 5343a837cd ("tests/tcg: move some multiarch files and make conditional") Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20211026173914.79377-1-alex.bennee@linaro.org>
2021-11-04gdbstub: Switch to the thread receiving a signalPavel Labath3-3/+75
Respond with Txxthread:yyyy; instead of a plain Sxx to indicate which thread received the signal. Otherwise, the debugger will associate it with the main one. Also automatically select this thread, as that is what gdb expects. Signed-off-by: Pavel Labath <pavel@labath.sk> Message-Id: <20211019174953.36560-1-pavel@labath.sk> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20211026102234.3961636-29-alex.bennee@linaro.org>
2021-11-04tests/tcg: remove duplicate EXTRA_RUNSAlex Bennée1-2/+0
We set it bellow outside the #if leg. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20211026102234.3961636-28-alex.bennee@linaro.org>
2021-11-04plugins: try and make plugin_insn_append more ergonomicAlex Bennée4-7/+17
Currently we make the assumption that the guest frontend loads all op code bytes sequentially. This mostly holds up for regular fixed encodings but some architectures like s390x like to re-read the instruction which causes weirdness to occur. Rather than changing the frontends make the plugin API a little more ergonomic and able to handle the re-read case. Stuff will still get strange if we read ahead of the opcode but so far no front ends have done that and this patch asserts the case so we can catch it early if they do. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Suggested-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20211026102234.3961636-21-alex.bennee@linaro.org>
2021-11-04tests/plugins: extend the insn plugin to track opcode sizesAlex Bennée1-2/+35
This is mostly a convenience feature for identifying frontends that do multiple repeat loads so I can test changes to the instruction tracking interface. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20211026102234.3961636-20-alex.bennee@linaro.org>
2021-11-04chardev: don't exit() straight away on C-a xAlex Bennée3-1/+11
While there are a number of uses in the code-base of the exit(0) pattern it gets in the way of clean exit which can do all of it's house-keeping. In particular it was reported that you can crash plugins this way because TCG can still be running on other threads when the atexit callback is called. Use qmp_quit() instead which takes care of some housekeeping before triggering the shutdown. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reported-by: Lukas Jünger <lukas.junger@greensocs.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20211026102234.3961636-19-alex.bennee@linaro.org>
2021-11-04docs/tcg-plugins: add L2 arguments to cache docsMahmoud Mandour1-2/+18
cache plugin now allows optional L2 per-core cache emulation that can be configured through plugin arguments, this commit adds this functionality to the docs. While I'm at it, I editted the bullet point for cache plugin to say: contrib/plugins/cache.c instead of contrib/plugins/cache to match other plugins. Signed-off-by: Mahmoud Mandour <ma.mandourr@gmail.com> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20210810134844.166490-6-ma.mandourr@gmail.com> Message-Id: <20211026102234.3961636-18-alex.bennee@linaro.org>
2021-11-04plugins/cache: make L2 emulation optional through argsMahmoud Mandour1-22/+54
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>
2021-11-04plugins/cache: split command line arguments into name and valueMahmoud Mandour1-27/+30
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>
2021-11-04plugins/cache: implement unified L2 cache emulationMahmoud Mandour1-81/+175
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>
2021-11-04plugins/cache: freed heap-allocated mutexesMahmoud Mandour1-0/+3
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>
2021-11-04ebpf: really include it only in system emulatorsPaolo Bonzini1-2/+0
eBPF libraries are being included in user emulators, which is useless and also breaks --static compilation if a shared library for libbpf is present in the system. Reported-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20211012162252.263933-1-pbonzini@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-bt: Warner Losh <imp@bsdimp.com> Message-Id: <20211026102234.3961636-13-alex.bennee@linaro.org>
2021-11-04tests/tcg: enable debian-nios2-cross for test buildingAlex Bennée3-0/+18
Now we have a nios2 test image we can start using it to build tests. However signal handling in nios2 is still broken so we disable the signals and linux-test tests that trigger the bug. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20211026102234.3961636-12-alex.bennee@linaro.org>
2021-11-04tests/docker: split PARTIAL into PARTIAL and VIRTUAL imagesAlex Bennée1-3/+5
This is mostly to ensure we don't include the toolchain and bootstrap builds in DOCKER_IMAGES which is useful when verifying all images still build. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Willian Rampazzo <willianr@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20211026102234.3961636-10-alex.bennee@linaro.org>
2021-11-04tests/tcg: Fix some targets default cross compiler pathPhilippe Mathieu-Daudé2-7/+13
We do not want a shell command substitution, but a parameter substitution (with assignment). Replace $() -> ${}, otherwise the expanded command return an empty string and the $cross_cc variable is not set. Fixes: 634ef789f8e ("tests/tcg: add more default compilers to configure.sh") Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> [AJB: disable sh4 linux-test] Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20211023164329.328137-1-f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20211026