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kvm-all: make async_safe_run_on_cpu safe on kvm too

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Wrap the bulk of kvm_cpu_exec with cpu_exec_start/end, so that kvm
version can also enjoy performing certain operations while all vCPUs are
quiescent.

Signed-off-by: Roman Kagan <rkagan@virtuozzo.com>
Message-Id: <20170606181948.16238-15-rkagan@virtuozzo.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Roman Kagan 2017-06-06 21:19:39 +03:00 • committed by Paolo Bonzini
parent a20fa79fa5
commit 1d78a3c3ab
1 changed files with 2 additions and 0 deletions
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2
kvm-all.c
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@ -1977,6 +1977,7 @@ int kvm_cpu_exec(CPUState *cpu)
}
qemu_mutex_unlock_iothread();
cpu_exec_start(cpu);
do {
MemTxAttrs attrs;
@ -2106,6 +2107,7 @@ int kvm_cpu_exec(CPUState *cpu)
}
} while (ret == 0);
cpu_exec_end(cpu);
qemu_mutex_lock_iothread();
if (ret < 0) {