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2023-10-04accel/tcg: Make icount.o a target agnostic unitPhilippe Mathieu-Daudé
Remove the unused "exec/exec-all.h" header. There is no more target specific code in it: make it target agnostic (rename using the '-common' suffix). Since it is TCG specific, move it to accel/tcg, updating MAINTAINERS. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Anton Johansson <anjo@rev.ng> Message-Id: <20230914185718.76241-11-philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-10-03accel/tcg: Remove cpu_neg()Richard Henderson
Now that CPUNegativeOffsetState is part of CPUState, we can reference it directly. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-10-03accel/tcg: Move can_do_io to CPUNegativeOffsetStateRichard Henderson
Minimize the displacement to can_do_io, since it may be touched at the start of each TranslationBlock. It fits into other padding within the substructure. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-08-31accel/tcg: spelling fixesMichael Tokarev
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru> Message-ID: <20230823065335.1919380-18-mjt@tls.msk.ru> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-ID: <20230823065335.1919380-19-mjt@tls.msk.ru> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2023-06-27icount: don't adjust virtual time backwards after warpNicholas Piggin
The icount-based QEMU_CLOCK_VIRTUAL runs ahead of the RT clock at times. When warping, it is possible it is still ahead at the end of the warp, which causes icount adaptive mode to adjust it backward. This can result in the machine observing time going backwards. Prevent this by clamping adaptive adjustment to 0 at minimum. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Message-ID: <20230627061406.241847-1-npiggin@gmail.com> Cc: qemu-stable@nongnu.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-06-06replay: rewrite async event handlingPavel Dovgalyuk
This patch decouples checkpoints and async events. It was a tricky part of replay implementation. Now it becomes much simpler and easier to maintain. Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgalyuk@ispras.ru> Acked-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <165364837856.688121.8785039478408995979.stgit@pasha-ThinkPad-X280> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-06-06replay: notify vCPU when BH is scheduledPavel Dovgalyuk
vCPU execution should be suspended when new BH is scheduled. This is needed to avoid guest timeouts caused by the long cycles of the execution. In replay mode execution may hang when vCPU sleeps and block event comes to the queue. This patch adds notification which wakes up vCPU or interrupts execution of guest code. Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgalyuk@ispras.ru> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> -- v2: changed first_cpu to current_cpu (suggested by Richard Henderson) v4: moved vCPU notification to aio_bh_enqueue (suggested by Paolo Bonzini) Message-Id: <165364837317.688121.17680519919871405281.stgit@pasha-ThinkPad-X280> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-04-06Remove qemu-common.h include from most unitsMarc-André Lureau
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20220323155743.1585078-33-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-04-01icount: get rid of static variablePavel Dovgalyuk
This patch moves static last_delta variable into timers_state structure to allow correct vmstate operations with icount shift=auto enabled. Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgalyuk@ispras.ru> Message-Id: <161701335066.1180180.7104085247702343395.stgit@pasha-ThinkPad-X280> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-12-10accel/tcg: split CpusAccel into three TCG variantsClaudio Fontana
split up the CpusAccel tcg_cpus into three TCG variants: tcg_cpus_rr (single threaded, round robin cpus) tcg_cpus_icount (same as rr, but with instruction counting enabled) tcg_cpus_mttcg (multi-threaded cpus) Suggested-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Claudio Fontana <cfontana@suse.de> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20201015143217.29337-2-cfontana@suse.de> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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>
generated by cgit v1.2.3 (git 2.26.2) at 2025-02-04 21:09:11 +0000