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authorClaudio Fontana <cfontana@suse.de>2020-08-19 13:17:19 +0200
committerPaolo Bonzini <pbonzini@redhat.com>2020-10-05 16:41:22 +0200
commit740b175973427bcfa32ad894bb1f83b96d184c28 (patch)
tree3613e83be5fd8620b369479b98e6ede5d5746a9a /hw/core/cpu.c
parent0ac0b47c44b4be6cbce26777a1a5968cc8f025a5 (diff)
downloadfocaccia-qemu-740b175973427bcfa32ad894bb1f83b96d184c28.tar.gz
focaccia-qemu-740b175973427bcfa32ad894bb1f83b96d184c28.zip
cpu-timers, icount: new modules
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>
Diffstat (limited to 'hw/core/cpu.c')
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