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use qemu_cpu_kick instead of cpu_exit or qemu_cpu_kick_thread

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Use the same API to trigger interruption of a CPU, no matter if
under TCG or KVM.  There is no difference: these calls come from
the CPU thread, so the qemu_cpu_kick calls will send a signal
to the running thread and it will be processed synchronously,
just like a call to cpu_exit.  The only difference is in the
overhead, but neither call to cpu_exit (now qemu_cpu_kick)
is in a hot path.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2015-08-18 06:52:09 -07:00
parent aed807c8e2
commit 9102dedaa1
3 changed files with 10 additions and 11 deletions
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2
hw/ppc/spapr_rtas.c
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@ -214,7 +214,7 @@ static void rtas_stop_self(PowerPCCPU *cpu, sPAPRMachineState *spapr,
CPUPPCState *env = &cpu->env;
cs->halted = 1;
cpu_exit(cs);
qemu_cpu_kick(cs);
/*
* While stopping a CPU, the guest calls H_CPPR which
* effectively disables interrupts on XICS level.