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hv: decouple IO completion polling from idle thread

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IO completion polling will access vcpu and vm structs. If doing it in
idle thread, there might be some race issues between vm destroying and
idle thread. They are running on different cores.
Got suggestion from Fengwei, decouple the polling action from idle
thread and just do it in vcpu thread, then we can guarantee idle thread
in really idle status.

Tracked-On: #1821
Signed-off-by: Shuo A Liu <shuo.a.liu@intel.com>
Reviewed-by: Eddie Dong <eddie.dong@intel.com>
Reviewed-by: Yin Fengwei <fengwei.yin@intel.com>
This commit is contained in:
Shuo A Liu
2018-12-21 10:23:44 +08:00
committed by wenlingz
parent a0154223f6
commit 952943c3ea
4 changed files with 39 additions and 37 deletions
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9
hypervisor/include/arch/x86/ioreq.h
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@@ -296,15 +296,6 @@ int32_t acrn_insert_request_wait(struct acrn_vcpu *vcpu, const struct io_request
*/
void reset_vm_ioreqs(struct acrn_vm *vm);
/**
* @brief Handle completed ioreq if any one pending
*
* @param pcpu_id The physical cpu id of vcpu whose IO request to be checked
*
* @return None
*/
void handle_complete_ioreq(uint16_t pcpu_id);
/**
* @brief Get the state of VHM request
*