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cpus: access .qemu_icount with atomic64

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Signed-off-by: Emilio G. Cota <cota@braap.org>
Message-Id: <20180910232752.31565-10-cota@braap.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Emilio G. Cota 2018-09-10 19:27:49 -04:00 • committed by Paolo Bonzini
parent 9b4e6f4966
commit 38adcb6e41
1 changed files with 4 additions and 4 deletions
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8
cpus.c
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@ -250,8 +250,8 @@ static void cpu_update_icount_locked(CPUState *cpu)
int64_t executed = cpu_get_icount_executed(cpu); int64_t executed = cpu_get_icount_executed(cpu);
cpu->icount_budget -= executed; cpu->icount_budget -= executed;
atomic_set__nocheck(&timers_state.qemu_icount, atomic_set_i64(&timers_state.qemu_icount,
timers_state.qemu_icount + executed); timers_state.qemu_icount + executed);
} }
/* /*
@ -280,8 +280,8 @@ static int64_t cpu_get_icount_raw_locked(void)
/* Take into account what has run */ /* Take into account what has run */
cpu_update_icount_locked(cpu); cpu_update_icount_locked(cpu);
} }
/* The read is protected by the seqlock, so __nocheck is okay. */ /* The read is protected by the seqlock, but needs atomic64 to avoid UB */
return atomic_read__nocheck(&timers_state.qemu_icount); return atomic_read_i64(&timers_state.qemu_icount);
} }
static int64_t cpu_get_icount_locked(void) static int64_t cpu_get_icount_locked(void)