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>

1 files changed, 8 insertions, 2 deletions

diff --git a/softmmu/meson.build b/softmmu/meson.build
index 95d38df259..36c96e7b15 100644
--- a/softmmu/meson.build
+++ b/softmmu/meson.build
@@ -1,4 +1,4 @@
-specific_ss.add(when: 'CONFIG_SOFTMMU', if_true: files(
+specific_ss.add(when: 'CONFIG_SOFTMMU', if_true: [files(
   'arch_init.c',
   'balloon.c',
   'cpus.c',
@@ -7,4 +7,10 @@ specific_ss.add(when: 'CONFIG_SOFTMMU', if_true: files(
   'memory.c',
   'memory_mapping.c',
   'qtest.c',
-  'vl.c'))
+  'vl.c',
+  'cpu-timers.c',
+)])
+
+specific_ss.add(when: ['CONFIG_SOFTMMU', 'CONFIG_TCG'], if_true: [files(
+  'icount.c'
+)])