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hv: cpu: pcpu_active_bitmap should be set atomically

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It's a global parameter and could be set concurrently. So it should be set atomically.

Tracked-On: #1842
Signed-off-by: Li, Fei1 <fei1.li@intel.com>
Reviewed-by: Yin Fenwgei <fengwei.yin@intel.com>
This commit is contained in:
Li, Fei1 2019-07-16 21:35:53 +08:00 committed by ACRN System Integration
parent 1081e1000e
commit b1dd3e26f5
1 changed files with 2 additions and 2 deletions
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4
hypervisor/arch/x86/cpu.c
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@ -154,7 +154,7 @@ void init_pcpu_pre(uint16_t pcpu_id_args)
}
}
bitmap_set_nolock(pcpu_id, &pcpu_active_bitmap);
bitmap_set_lock(pcpu_id, &pcpu_active_bitmap);
/* Set state for this CPU to initializing */
pcpu_set_current_state(pcpu_id, PCPU_STATE_INITIALIZING);
@ -387,7 +387,7 @@ void cpu_dead(void)
/* Set state to show CPU is dead */
pcpu_set_current_state(pcpu_id, PCPU_STATE_DEAD);
bitmap_clear_nolock(pcpu_id, &pcpu_active_bitmap);
bitmap_clear_lock(pcpu_id, &pcpu_active_bitmap);
/* Halt the CPU */
do {