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cpu: introduce cpu_in_exclusive_context()

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Suggested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Emilio G. Cota <cota@braap.org>
[AJB: moved inside start/end_exclusive fns + cleanup]
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Emilio G. Cota 2018-11-26 17:14:43 -05:00 • committed by Alex Bennée
parent 504f73f7b3
commit cfbc3c6083
3 changed files with 18 additions and 4 deletions
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13
include/hw/core/cpu.h
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@ -372,6 +372,7 @@ struct CPUState {
bool unplug;
bool crash_occurred;
bool exit_request;
bool in_exclusive_context;
uint32_t cflags_next_tb;
/* updates protected by BQL */
uint32_t interrupt_request;
@ -783,6 +784,18 @@ void async_run_on_cpu(CPUState *cpu, run_on_cpu_func func, run_on_cpu_data data)
*/
void async_safe_run_on_cpu(CPUState *cpu, run_on_cpu_func func, run_on_cpu_data data);
/**
* cpu_in_exclusive_context()
* @cpu: The vCPU to check
*
* Returns true if @cpu is an exclusive context, for example running
* something which has previously been queued via async_safe_run_on_cpu().
*/
static inline bool cpu_in_exclusive_context(const CPUState *cpu)
{
return cpu->in_exclusive_context;
}
/**
* qemu_get_cpu:
* @index: The CPUState@cpu_index value of the CPU to obtain.