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2020-10-23block: move block exports to libblockdevStefan Hajnoczi
Block exports are used by softmmu, qemu-storage-daemon, and qemu-nbd. They are not used by other programs and are not otherwise needed in libblock. Undo the recent move of blockdev-nbd.c from blockdev_ss into block_ss. Since bdrv_close_all() (libblock) calls blk_exp_close_all() (libblockdev) a stub function is required.. Make qemu-nbd.c use signal handling utility functions instead of duplicating the code. This helps because os-posix.c is in libblockdev and it depends on a qemu_system_killed() symbol that qemu-nbd.c lacks. Once we use the signal handling utility functions we also end up providing the necessary symbol. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-id: 20200929125516.186715-4-stefanha@redhat.com [Fixed s/ndb/nbd/ typo in commit description as suggested by Eric Blake --Stefan] Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2020-10-22replay: do not build if TCG is not availableClaudio Fontana
this fixes non-TCG builds broken recently by replay reverse debugging. Stub the needed functions in stub/, splitting roughly between functions needed only by system emulation, by system emulation and tools, and by everyone. This includes duplicating some code in replay/, and puts the logic for non-replay related events in the replay/ module (+ the stubs), so this should be revisited in the future. Surprisingly, only _one_ qtest was affected by this, ide-test.c, which resulted in a buzz as the bh events were never delivered, and the bh never executed. Many other subsystems _should_ have been affected. This fixes the immediate issue, however a better way to group replay functionality to TCG-only code could be developed in the long term. Signed-off-by: Claudio Fontana <cfontana@suse.de> Message-Id: <20201013192123.22632-4-cfontana@suse.de> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-10-09monitor: Make current monitor a per-coroutine propertyKevin Wolf
This way, a monitor command handler will still be able to access the current monitor, but when it yields, all other code code will correctly get NULL from monitor_cur(). This uses a hash table to map the coroutine pointer to the current monitor of that coroutine. Outside of coroutine context, we associate the current monitor with the leader coroutine of the current thread. Approaches to implement some form of coroutine local storage directly in the coroutine core code have been considered and discarded because they didn't end up being much more generic than the hash table and their performance impact on coroutines not using coroutine local storage was unclear. As the block layer uses a coroutine per I/O request, this is a fast path and we have to be careful. It's safest to just stay out of this path with code only used by the monitor. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20201005155855.256490-8-kwolf@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2020-10-09qmp: Call monitor_set_cur() only in qmp_dispatch()Kevin Wolf
The correct way to set the current monitor for a coroutine handler will be different than for a blocking handler, so monitor_set_cur() needs to be called in qmp_dispatch(). Signed-off-by: Kevin Wolf <kwolf@redhat.com> Message-Id: <20201005155855.256490-7-kwolf@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2020-10-09monitor: Use getter/setter functions for cur_monKevin Wolf
cur_mon really needs to be coroutine-local as soon as we move monitor command handlers to coroutines and let them yield. As a first step, just remove all direct accesses to cur_mon so that we can implement this in the getter function later. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Message-Id: <20201005155855.256490-4-kwolf@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2020-10-06gdbstub: add reverse continue support in replay modePavel Dovgalyuk
This patch adds support of the reverse continue operation for gdbstub. Reverse continue finds the last breakpoint that would happen in normal execution from the beginning to the current moment. Implementation of the reverse continue replays the execution twice: to find the breakpoints that were hit and to seek to the last breakpoint. Reverse continue loads the previous snapshot and tries to find the breakpoint since that moment. If there are no such breakpoints, it proceeds to the earlier snapshot, and so on. When no breakpoints or watchpoints were hit at all, execution stops at the beginning of the replay log. Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgalyuk@ispras.ru> Message-Id: <160174522930.12451.6994758004725016836.stgit@pasha-ThinkPad-X280> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-10-06gdbstub: add reverse step support in replay modePavel Dovgalyuk
GDB remote protocol supports two reverse debugging commands: reverse step and reverse continue. This patch adds support of the first one to the gdbstub. Reverse step is intended to step one instruction in the backwards direction. This is not possible in regular execution. But replayed execution is deterministic, therefore we can load one of the prior snapshots and proceed to the desired step. It is equivalent to stepping one instruction back. There should be at least one snapshot preceding the debugged part of the replay log. Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgalyuk@ispras.ru> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> -- v4 changes: - inverted condition in cpu_handle_guest_debug (suggested by Alex Bennée) Message-Id: <160174522341.12451.1498758422543765253.stgit@pasha-ThinkPad-X280> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-10-06migration: introduce icount field for snapshotsPavel Dovgalyuk
Saving icount as a parameters of the snapshot allows navigation between them in the execution replay scenario. This information can be used for finding a specific snapshot for proceeding the recorded execution to the specific moment of the time. E.g., 'reverse step' action (introduced in one of the following patches) needs to load the nearest snapshot which is prior to the current moment of time. This patch also updates snapshot test which verifies qemu monitor output. Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgalyuk@ispras.ru> Acked-by: Markus Armbruster <armbru@redhat.com> Acked-by: Kevin Wolf <kwolf@redhat.com> -- v4 changes: - squashed format update with test output update v7 changes: - introduced the spaces between the fields in snapshot info output - updated the test to match new field widths Message-Id: <160174518865.12451.14327573383978752463.stgit@pasha-ThinkPad-X280> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-10-05cpus: prepare new CpusAccel cpu accelerator interfaceClaudio Fontana
The new interface starts unused, will start being used by the next patches. It provides methods for each accelerator to start a vcpu, kick a vcpu, synchronize state, get cpu virtual clock and elapsed ticks. In qemu_wait_io_event, make it clear that APC is used only for HAX on Windows. Signed-off-by: Claudio Fontana <cfontana@suse.de> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-10-05icount: rename functions to be consistent with the module nameClaudio Fontana
Signed-off-by: Claudio Fontana <cfontana@suse.de> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-10-05cpu-timers, icount: new modulesClaudio Fontana
refactoring of cpus.c continues with cpu timer state extraction. cpu-timers: responsible for the softmmu cpu timers state, including cpu clocks and ticks. icount: counts the TCG instructions executed. As such it is specific to the TCG accelerator. Therefore, it is built only under CONFIG_TCG. One complication is due to qtest, which uses an icount field to warp time as part of qtest (qtest_clock_warp). In order to solve this problem, provide a separate counter for qtest. This requires fixing assumptions scattered in the code that qtest_enabled() implies icount_enabled(), checking each specific case. Signed-off-by: Claudio Fontana <cfontana@suse.de> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> [remove redundant initialization with qemu_spice_init] Reviewed-by: Alex Bennée <alex.bennee@linaro.org> [fix lingering calls to icount_get] Signed-off-by: Claudio Fontana <cfontana@suse.de> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-09-30hw/xen: Split x86-specific declaration from generic hardware onesPhilippe Mathieu-Daudé
xen_hvm_init() is restricted to the X86 architecture. Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20200908155530.249806-6-philmd@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-09-30stubs: Split accelerator / hardware related stubsPhilippe Mathieu-Daudé
Move hardware stubs unrelated from the accelerator to xen-hw-stub.c. Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20200908155530.249806-5-philmd@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-09-29qapi: Restrict query-uuid command to machine codePhilippe Mathieu-Daudé
Only qemu-system-FOO and qemu-storage-daemon provide QMP monitors, therefore such declarations and definitions are irrelevant for user-mode emulation. Restricting the query-uuid command to machine.json pulls less QAPI-generated code into user-mode. Acked-by: Markus Armbruster <armbru@redhat.com> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20200913195348.1064154-6-philmd@redhat.com> [Commit message tweaked] Signed-off-by: Markus Armbruster <armbru@redhat.com>
2020-09-29qapi: Restrict query-vm-generation-id command to machine codePhilippe Mathieu-Daudé
Only qemu-system-FOO and qemu-storage-daemon provide QMP monitors, therefore such declarations and definitions are irrelevant for user-mode emulation. Restricting the query-vm-generation-id command to machine.json pulls less QAPI-generated code into user-mode. Acked-by: Igor Mammedov <imammedo@redhat.com> Acked-by: Markus Armbruster <armbru@redhat.com> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20200913195348.1064154-5-philmd@redhat.com> [Commit message tweaked] Signed-off-by: Markus Armbruster <armbru@redhat.com>
2020-09-16monitor: simplify functions for getting a dup'd fdset entryDaniel P. Berrangé
Currently code has to call monitor_fdset_get_fd, then dup the return fd, and then add the duplicate FD back into the fdset. This dance is overly verbose for the caller and introduces extra failure modes which can be avoided by folding all the logic into monitor_fdset_dup_fd_add and removing monitor_fdset_get_fd entirely. Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2020-09-07stubs: Move qemu_fd_register stub to util/main-loop.cThomas Huth
The linker of MinGW sometimes runs into the following problem: libqemuutil.a(util_main-loop.c.obj): In function `qemu_fd_register': /builds/huth/qemu/build/../util/main-loop.c:331: multiple definition of `qemu_fd_register' libqemuutil.a(stubs_fd-register.c.obj):/builds/huth/qemu/stubs/fd-register.c:5: first defined here collect2: error: ld returned 1 exit status /builds/huth/qemu/rules.mak:88: recipe for target 'tests/test-timed-average.exe' failed qemu_fd_register() is defined in util/main-loop.c for WIN32, so let's simply move the stub also there in the #else part of the corresponding #ifndef to fix this problem. Message-Id: <20200903054503.425435-1-thuth@redhat.com> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2020-09-07stubs: Move qemu_timer_notify_cb() and remove qemu_notify_event() stubThomas Huth
When cross-compiling with MinGW, there are sometimes some weird linker errors like: ibqemuutil.a(util_main-loop.c.obj): In function `qemu_notify_event': /builds/huth/qemu/build/../util/main-loop.c:139: multiple definition of `qemu_notify_event' libqemuutil.a(stubs_notify-event.c.obj):/builds/huth/qemu/stubs/notify-event.c:5: first defined here collect2: error: ld returned 1 exit status /builds/huth/qemu/rules.mak:88: recipe for target 'tests/test-timed-average.exe' failed It seems like it works better when the qemu_timer_notify_cb() stub (which calls qemu_notify_event()) is in a separate file - then we can also even remove the qemu_notify_event() stub now. This patch is based on ideas from the patch "stubs: Remove qemu_notify_event()" by Philippe Mathieu-Daudé and the patch "cpu-timers, icount: new modules" from Claudio Fontana. Message-Id: <20200902102433.304737-1-thuth@redhat.com> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2020-09-01stubs/cmos: Use correct includePhilippe Mathieu-Daudé
cmos_get_fd_drive_type() is declared in "hw/block/fdc.h". This currently works because "hw/i386/pc.h" happens to include it. Simplify including the correct header. Fixes: 2055dbc1c9 ("acpi: move aml builder code for floppy device") Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: John Snow <jsnow@redhat.com> Message-Id: <20200724084315.1606-1-f4bug@amsat.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-08-21libqemuutil, qapi, trace: convert to mesonPaolo Bonzini
This shows how to do some "computations" in meson.build using its array and dictionary data structures, and also a basic usage of the sourceset module for conditional compilation. Notice the new "if have_system" part of util/meson.build, which fixes a bug in the old build system was buggy: util/dbus.c was built even for non-softmmu builds, but the dependency on -lgio was lost when the linking was done through libqemuutil.a. Because all of its users required gio otherwise, the bug was hidden. Meson instead propagates libqemuutil's dependencies down to its users, and shows the problem. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-07-24Revert "tpm: Clean up error reporting in tpm_init_tpmdev()"Markus Armbruster
This reverts commit d10e05f15d5c3dd5e5cc59c5dfff460d89d48580. We report some -tpmdev failures, but then continue as if all was fine. Reproducer: $ qemu-system-x86_64 -nodefaults -S -display none -monitor stdio -chardev null,id=tpm0 -tpmdev emulator,id=tpm0,chardev=chrtpm -device tpm-tis,tpmdev=tpm0 qemu-system-x86_64: -tpmdev emulator,id=tpm0,chardev=chrtpm: tpm-emulator: tpm chardev 'chrtpm' not found. qemu-system-x86_64: -tpmdev emulator,id=tpm0,chardev=chrtpm: tpm-emulator: Could not cleanly shutdown the TPM: No such file or directory QEMU 5.0.90 monitor - type 'help' for more information (qemu) qemu-system-x86_64: -device tpm-tis,tpmdev=tpm0: Property 'tpm-tis.tpmdev' can't find value 'tpm0' $ echo $? 1 This is a regression caused by commit d10e05f15d "tpm: Clean up error reporting in tpm_init_tpmdev()". It's incomplete: be->create(opts) continues to use error_report(), and we don't set an error when it fails. I figure converting the create() methods to Error would make some sense, but I'm not sure it's worth the effort right now. Revert the broken commit instead, and add a comment to tpm_init_tpmdev(). Straightforward conflict in tpm.c resolved. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Stefan Berger <stefanb@linux.ibm.com> Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
2020-07-09Merge remote-tracking branch ↵Peter Maydell
'remotes/vivier2/tags/trivial-branch-for-5.1-pull-request' into staging trivial branch patches 20200707 # gpg: Signature made Tue 07 Jul 2020 11:52:06 BST # gpg: using RSA key CD2F75DDC8E3A4DC2E4F5173F30C38BD3F2FBE3C # gpg: issuer "laurent@vivier.eu" # gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>" [full] # gpg: aka "Laurent Vivier <laurent@vivier.eu>" [full] # gpg: aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>" [full] # Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F 5173 F30C 38BD 3F2F BE3C * remotes/vivier2/tags/trivial-branch-for-5.1-pull-request: net/tap-solaris.c: Include qemu-common.h for TFR macro intel_iommu: "aw-bits" error message still refers to "x-aw-bits" util/qemu-option: Document the get_opt_value() function MAINTAINERS: Update Radoslaw Biernacki email address .mailmap: Update Alexander Graf email address trivial: Respect alphabetical order of .o files in Makefile.objs fix the prototype of muls64/mulu64 Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-07-07trivial: Respect alphabetical order of .o files in Makefile.objsChristophe de Dinechin
The vmgenid.o is the only file that is not in alphabetical order. Signed-off-by: Christophe de Dinechin <dinechin@redhat.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20200629094934.2081180-1-dinechin@redhat.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-07-06stubs: add pci_create_simpleGerd Hoffmann
Needed for -soundhw cleanup. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-id: 20200702132525.6849-3-kraxel@redhat.com
2020-07-06stubs: add isa_create_simpleGerd Hoffmann
Needed for -soundhw cleanup. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-id: 20200702132525.6849-2-kraxel@redhat.com
2020-06-24acpi: move aml builder code for floppy deviceGerd Hoffmann
DSDT change: isa device order changes in case MI1 (ipmi) is present. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Igor Mammedov <imammedo@redhat.com> Message-Id: <20200619091905.21676-4-kraxel@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2020-06-12stubs: move Xen stubs to accel/Paolo Bonzini
Keep them close to the other accelerator-dependent stubs, so as to remove stubs that are not needed by tools. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-06-10accel: Move Xen accelerator code under accel/xen/Philippe Mathieu-Daudé
This code is not related to hardware emulation. Move it under accel/ with the other hypervisors. Reviewed-by: Paul Durrant <paul@xen.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20200508100222.7112-1-philmd@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-06-10qom/object: Move Object typedef to 'qemu/typedefs.h'Philippe Mathieu-Daudé
We use the Object type all over the place. Forward declare it in "qemu/typedefs.h". Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20200504115656.6045-2-f4bug@amsat.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-06-05stubs: Restrict ui/win32-kbd-hook to system-modePhilippe Mathieu-Daudé
In Makefile.objs, the ui/ directory is restricted to system-mode: 43 ifeq ($(CONFIG_SOFTMMU),y) ... 65 common-obj-y += ui/ 66 common-obj-m += ui/ ... 82 endif # CONFIG_SOFTMMU Restrict the ui/ stub added in commit 2df9f5718df to only build it for system-mode emulation. Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20200522172510.25784-14-philmd@redhat.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-06-05stubs/Makefile: Reduce the user-mode object listPhilippe Mathieu-Daudé
These stubs are not required when configured with --disable-system. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Tested-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20200522172510.25784-7-philmd@redhat.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-05-21Merge remote-tracking branch 'remotes/kraxel/tags/ui-20200520-pull-request' ↵Peter Maydell
into staging ui: windows keyboard fixes for gtk & sdl. ui: require GTK 3.22 or newer. # gpg: Signature made Wed 20 May 2020 09:41:48 BST # gpg: using RSA key 4CB6D8EED3E87138 # gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>" [full] # gpg: aka "Gerd Hoffmann <gerd@kraxel.org>" [full] # gpg: aka "Gerd Hoffmann (private) <kraxel@gmail.com>" [full] # Primary key fingerprint: A032 8CFF B93A 17A7 9901 FE7D 4CB6 D8EE D3E8 7138 * remotes/kraxel/tags/ui-20200520-pull-request: ui: increase min required GTK version to 3.22.0 ui/gtk: use native keyboard scancodes on Windows ui/gtk: don't pass on win keys without keyboard grab ui/sdl2-input: use trace-events to debug key events ui/sdl2: start in full screen with grab enabled ui/sdl2: fix handling of AltGr key on Windows ui/gtk: remove unused variable ignore_keys ui/gtk: remove unused code ui/gkt: release all keys on grab-broken-event ui/gtk: fix handling of AltGr key on Windows ui/win32-kbd-hook: handle AltGr in a hook procedure Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-05-19ui/win32-kbd-hook: handle AltGr in a hook procedureVolker Rümelin
Import win32 keyboard hooking code from project spice-gtk. This patch removes the extra left control key up/down input events inserted by Windows for the right alt key up/down input events with international keyboard layouts. Additionally there's some code to grab the keyboard. The next patches will use this code. Only Windows needs this. Signed-off-by: Volker Rümelin <vr_qemu@t-online.de> Message-id: 20200516072014.7766-1-vr_qemu@t-online.de Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-05-18Revert "hw/display/ramfb: initialize fw-config space with xres/ yres"Gerd Hoffmann
This reverts commit f79081b4b71b72640bedd40a7cd76f864c8287f1. Patch has broken byteorder handling: RAMFBCfg fields are in bigendian byteorder, the reset function doesn't care so native byteorder is used instead. Given this went unnoticed so far the feature is obviously unused, so just revert the patch. Cc: Hou Qiming <hqm03ster@gmail.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Acked-by: Laszlo Ersek <lersek@redhat.com> Message-id: 20200429115236.28709-2-kraxel@redhat.com
2020-03-06hmp: Fail gracefully if chardev is already in useKevin Wolf
Trying to attach a HMP monitor to a chardev that is already in use results in a crash because monitor_init_hmp() passes &error_abort to qemu_chr_fe_init(): $ ./x86_64-softmmu/qemu-system-x86_64 --chardev stdio,id=foo --mon foo --mon foo QEMU 4.2.50 monitor - type 'help' for more information (qemu) Unexpected error in qemu_chr_fe_init() at chardev/char-fe.c:220: qemu-system-x86_64: --mon foo: Device 'foo' is in use Abgebrochen (Speicherabzug geschrieben) Fix this by allowing monitor_init_hmp() to return an error and passing any error in qemu_chr_fe_init() to its caller instead of aborting. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Message-Id: <20200224143008.13362-19-kwolf@redhat.com> Acked-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-03-06qmp: Fail gracefully if chardev is already in useKevin Wolf
Trying to attach a QMP monitor to a chardev that is already in use results in a crash because monitor_init_qmp() passes &error_abort to qemu_chr_fe_init(): $ ./x86_64-softmmu/qemu-system-x86_64 --chardev stdio,id=foo --mon foo,mode=control --mon foo,mode=control Unexpected error in qemu_chr_fe_init() at chardev/char-fe.c:220: qemu-system-x86_64: --mon foo,mode=control: Device 'foo' is in use Abgebrochen (Speicherabzug geschrieben) Fix this by allowing monitor_init_qmp() to return an error and passing any error in qemu_chr_fe_init() to its caller instead of aborting. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Message-Id: <20200224143008.13362-18-kwolf@redhat.com> Acked-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-03-06stubs: Update monitor stubs for qemu-storage-daemonKevin Wolf
Before we can add the monitor to qemu-storage-daemon, we need to add a stubs for monitor_fdsets_cleanup(). We also need to make sure that stubs that are actually implemented in the monitor core aren't linked to qemu-storage-daemon so that we don't get linker errors because of duplicate symbols. This is achieved by moving the stubs in question to a new file stubs/monitor-core.c. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Message-Id: <20200224143008.13362-15-kwolf@redhat.com> Acked-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-03-06stubs: Add arch_typeKevin Wolf
blockdev.c uses the arch_type constant, so before we can use the file in tools (i.e. outside of the system emulator), we need to add a stub for it. A new QEMU_ARCH_NONE is introduced for this case. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Message-Id: <20200224143008.13362-3-kwolf@redhat.com> Acked-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-01-30stubs: add stubs for io_uring interfaceAarushi Mehta
Follow linux-aio.o and stub out the block/io_uring.o APIs that will be missing when a binary is linked with obj-util-y but without block-util-y (e.g. vhost-user-gpu). For example, the stubs are necessary so that a binary using util/async.o from obj-util-y for qemu_bh_new() links successfully. In this case block/io_uring.o from block-util-y isn't needed and we can avoid dragging in the block layer by linking the stubs instead. The stub functions never get called. Signed-off-by: Aarushi Mehta <mehta.aaru20@gmail.com> Acked-by: Stefano Garzarella <sgarzare@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Message-id: 20200120141858.587874-6-stefanha@redhat.com Message-Id: <20200120141858.587874-6-stefanha@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2020-01-20migration: Change SaveStateEntry.instance_id into uint32_tPeter Xu
It was always used as 32bit, so define it as used to be clear. Instead of using -1 as the auto-gen magic value, we switch to UINT32_MAX. We also make sure that we don't auto-gen this value to avoid overflowed instance IDs without being noticed. Suggested-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Peter Xu <peterx@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2020-01-10Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into stagingPeter Maydell
* Compat machines fix (Denis) * Command line parsing fixes (Michal, Peter, Xiaoyao) * Cooperlake CPU model fixes (Xiaoyao) * i386 gdb fix (mkdolata) * IOEventHandler cleanup (Philippe) * icount fix (Pavel) * RR support for random number sources (Pavel) * Kconfig fixes (Philippe) # gpg: Signature made Wed 08 Jan 2020 10:41:00 GMT # gpg: using RSA key BFFBD25F78C7AE83 # gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full] # gpg: aka "Paolo Bonzini <pbonzini@redhat.com>" [full] # Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4 E2F7 7E15 100C CD36 69B1 # Subkey fingerprint: F133 3857 4B66 2389 866C 7682 BFFB D25F 78C7 AE83 * remotes/bonzini/tags/for-upstream: (38 commits) chardev: Use QEMUChrEvent enum in IOEventHandler typedef chardev: use QEMUChrEvent instead of int chardev/char: Explicit we ignore some QEMUChrEvent in IOEventHandler monitor/hmp: Explicit we ignore a QEMUChrEvent in IOEventHandler monitor/qmp: Explicit we ignore few QEMUChrEvent in IOEventHandler virtio-console: Explicit we ignore some QEMUChrEvent in IOEventHandler vhost-user-blk: Explicit we ignore few QEMUChrEvent in IOEventHandler vhost-user-net: Explicit we ignore few QEMUChrEvent in IOEventHandler vhost-user-crypto: Explicit we ignore some QEMUChrEvent in IOEventHandler ccid-card-passthru: Explicit we ignore QEMUChrEvent in IOEventHandler hw/usb/redirect: Explicit we ignore few QEMUChrEvent in IOEventHandler hw/usb/dev-serial: Explicit we ignore few QEMUChrEvent in IOEventHandler hw/char/terminal3270: Explicit ignored QEMUChrEvent in IOEventHandler hw/ipmi: Explicit we ignore some QEMUChrEvent in IOEventHandler hw/ipmi: Remove unnecessary declarations target/i386: Add missed features to Cooperlake CPU model target/i386: Add new bit definitions of MSR_IA32_ARCH_CAPABILITIES target/i386: Fix handling of k_gs_base register in 32-bit mode in gdbstub hw/rtc/mc146818: Add missing dependency on ISA Bus hw/nvram/Kconfig: Restrict CHRP NVRAM to machines using OpenBIOS or SLOF ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-01-09semihosting: add qemu_semihosting_console_inc for SYS_READCKeith Packard
Provides a blocking call to read a character from the console using semihosting.chardev, if specified. This takes some careful command line options to use stdio successfully as the serial ports, monitor and semihost all want to use stdio. Here's a sample set of command line options which share stdio between semihost, monitor and serial ports: qemu \ -chardev stdio,mux=on,id=stdio0 \ -serial chardev:stdio0 \ -semihosting-config enable=on,chardev=stdio0 \ -mon chardev=stdio0,mode=readline This creates a chardev hooked to stdio and then connects all of the subsystems to it. A shorter mechanism would be good to hear about. Signed-off-by: Keith Packard <keithp@keithp.com> Message-Id: <20191104204230.12249-1-keithp@keithp.com> [AJB: fixed up deadlock, minor commit title reword] Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Cc: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Keith Packard <keithp@keithp.com> Tested-by: Keith Packard <keithp@keithp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2020-01-07replay: record and replay random number sourcesPavel Dovgalyuk
Record/replay feature of icount allows deterministic running of execution scenarios. Some CPUs and peripheral devices read random numbers from external sources making deterministic execution impossible. This patch adds recording and replaying of random read operations into guest-random module, which is used by the virtual hardware. Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru> Message-Id: <157675984852.14505.15709141760677102489.stgit@pasha-Precision-3630-Tower> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-01-06vmstate: replace DeviceState with VMStateIfMarc-André Lureau
Replace DeviceState dependency with VMStateIf on vmstate API. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Acked-by: Halil Pasic <pasic@linux.ibm.com>
2019-12-17acpi: move PC stubs out of stubs/Paolo Bonzini
This is a small cleanup that lets microvm build entirely without include/hw/i386/pc.h. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-11-05hw/pci-host/piix: Move i440FX declarations to hw/pci-host/i440fx.hPhilippe Mathieu-Daudé
The hw/pci-host/piix.c contains a mix of PIIX3 and i440FX chipsets functions. To be able to split it, we need to export some declarations first. Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-10-14replay: add BH oneshot event for block layerPavel Dovgalyuk
Replay is capable of recording normal BH events, but sometimes there are single use callbacks scheduled with aio_bh_schedule_oneshot function. This patch enables recording and replaying such callbacks. Block layer uses these events for calling the completion function. Replaying these calls makes the execution deterministic. Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru> Acked-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-08-16sysemu: Split sysemu/runstate.h off sysemu/sysemu.hMarkus Armbruster
sysemu/sysemu.h is a rather unfocused dumping ground for stuff related to the system-emulator. Evidence: * It's included widely: in my "build everything" tree, changing sysemu/sysemu.h still triggers a recompile of some 1100 out of 6600 objects (not counting tests and objects that don't depend on qemu/osdep.h, down from 5400 due to the previous two commits). * It pulls in more than a dozen additional headers. Split stuff related to run state management into its own header sysemu/runstate.h. Touching sysemu/sysemu.h now recompiles some 850 objects. qemu/uuid.h also drops from 1100 to 850, and qapi/qapi-types-run-state.h from 4400 to 4200. Touching new sysemu/runstate.h recompiles some 500 objects. Since I'm touching MAINTAINERS to add sysemu/runstate.h anyway, also add qemu/main-loop.h. Suggested-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20190812052359.30071-30-armbru@redhat.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> [Unbreak OS-X build]
2019-08-16Clean up inclusion of sysemu/sysemu.hMarkus Armbruster
In my "build everything" tree, changing sysemu/sysemu.h triggers a recompile of some 5400 out of 6600 objects (not counting tests and objects that don't depend on qemu/osdep.h). Almost a third of its inclusions are actually superfluous. Delete them. Downgrade two more to qapi/qapi-types-run-state.h, and move one from char/serial.h to char/serial.c. hw/semihosting/config.c, monitor/monitor.c, qdev-monitor.c, and stubs/semihost.c define variables declared in sysemu/sysemu.h without including it. The compiler is cool with that, but include it anyway. This doesn't reduce actual use much, as it's still included into widely included headers. The next commit will tackle that. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-Id: <20190812052359.30071-27-armbru@redhat.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
2019-06-18monitor: Replace monitor_init() with monitor_init_{hmp, qmp}()Kevin Wolf
Most callers know which monitor type they want to have. Instead of calling monitor_init() with flags that can describe both types of monitors, make monitor_init_{hmp,qmp}() public interfaces that take specific bools instead of flags and call these functions directly. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Message-Id: <20190613153405.24769-15-kwolf@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
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