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hv:add per-vm lock for vm & vcpu state change

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-- replace global hypercall lock with per-vm lock
-- add spinlock protection for vm & vcpu state change

v1-->v2:
   change get_vm_lock/put_vm_lock parameter from vm_id to vm
   move lock obtain before vm state check
   move all lock from vmcall.c to hypercall.c

Tracked-On: #4958
Signed-off-by: Mingqiang Chi <mingqiang.chi@intel.com
Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Mingqiang Chi
2020-07-13 18:22:57 +08:00
parent e5c5337886
commit aa89eb3541
8 changed files with 96 additions and 58 deletions
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4
hypervisor/common/hv_main.c
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@@ -35,7 +35,9 @@ void vcpu_thread(struct thread_object *obj)
ret = acrn_handle_pending_request(vcpu);
if (ret < 0) {
pr_fatal("vcpu handling pending request fail");
get_vm_lock(vcpu->vm);
zombie_vcpu(vcpu, VCPU_ZOMBIE);
put_vm_lock(vcpu->vm);
/* Fatal error happened (triple fault). Stop the vcpu running. */
continue;
}
@@ -47,7 +49,9 @@ void vcpu_thread(struct thread_object *obj)
ret = run_vcpu(vcpu);
if (ret != 0) {
pr_fatal("vcpu resume failed");
get_vm_lock(vcpu->vm);
zombie_vcpu(vcpu, VCPU_ZOMBIE);
put_vm_lock(vcpu->vm);
/* Fatal error happened (resume vcpu failed). Stop the vcpu running. */
continue;
}