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HV: add hypercall to monitor UOS PTdev intr status

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The hypercall can be used by SOS/DM to monitor UOS
pass-thru devices' interrupt data; and if an "interrupt
storm" happens in UOS, it can be used to delay the UOS
PTdev interrupt's injection for sometime.

The two functions are implemented by one hypercall with
two sub-commands, and with the data/params in the buffer.

Tracked-On: #866
Signed-off-by: Minggui Cao <minggui.cao@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
This commit is contained in:
Minggui Cao
2018-09-13 16:51:34 +08:00
committed by lijinxia
parent 918403f925
commit d123083fa9
5 changed files with 82 additions and 0 deletions
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4
hypervisor/arch/x86/guest/vmcall.c
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@@ -181,6 +181,10 @@ int vmcall_vmexit_handler(struct vcpu *vcpu)
ret = hcall_save_restore_sworld_ctx(vcpu);
break;
case HC_VM_INTR_MONITOR:
ret = hcall_vm_intr_monitor(vm, (uint16_t)param1, param2);
break;
default:
pr_err("op %d: Invalid hypercall\n", hypcall_id);
ret = -EPERM;