From 740b175973427bcfa32ad894bb1f83b96d184c28 Mon Sep 17 00:00:00 2001 From: Claudio Fontana Date: Wed, 19 Aug 2020 13:17:19 +0200 Subject: cpu-timers, icount: new modules MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 Reviewed-by: Richard Henderson [remove redundant initialization with qemu_spice_init] Reviewed-by: Alex Bennée [fix lingering calls to icount_get] Signed-off-by: Claudio Fontana Signed-off-by: Paolo Bonzini --- stubs/icount.c | 45 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 45 insertions(+) create mode 100644 stubs/icount.c (limited to 'stubs/icount.c') diff --git a/stubs/icount.c b/stubs/icount.c new file mode 100644 index 0000000000..61e28cbaf9 --- /dev/null +++ b/stubs/icount.c @@ -0,0 +1,45 @@ +#include "qemu/osdep.h" +#include "qapi/error.h" +#include "sysemu/cpu-timers.h" + +/* icount - Instruction Counter API */ + +int use_icount; + +void cpu_update_icount(CPUState *cpu) +{ + abort(); +} +void configure_icount(QemuOpts *opts, Error **errp) +{ + /* signal error */ + error_setg(errp, "cannot configure icount, TCG support not available"); +} +int64_t cpu_get_icount_raw(void) +{ + abort(); + return 0; +} +int64_t cpu_get_icount(void) +{ + abort(); + return 0; +} +int64_t cpu_icount_to_ns(int64_t icount) +{ + abort(); + return 0; +} +int64_t qemu_icount_round(int64_t count) +{ + abort(); + return 0; +} +void qemu_start_warp_timer(void) +{ + abort(); +} +void qemu_account_warp_timer(void) +{ + abort(); +} -- cgit v1.2.3