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HV: Introduce one new API send_single_init

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This API is only for kick vcpu out of non-root mode when
RTVM poweroff by itself. And the first caller will soon come
along with the next patch.

Tracked-On: #2865
Signed-off-by: Kaige Fu <kaige.fu@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Kaige Fu
2019-03-19 09:56:28 +00:00
committed by ACRN System Integration
parent 8ad5adced7
commit ef9be0208a
2 changed files with 27 additions and 0 deletions
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20
hypervisor/arch/x86/lapic.c
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@@ -268,3 +268,23 @@ void send_single_ipi(uint16_t pcpu_id, uint32_t vector)
pr_err("pcpu_id %d not in active!", pcpu_id);
}
}
/**
* @pre pcpu_id < CONFIG_MAX_PCPU_NUM
* @pre target pCPU must be in active state
*
* @return None
*/
void send_single_init(uint16_t pcpu_id)
{
union apic_icr icr;
if (is_pcpu_active(pcpu_id)) {
icr.value_32.hi_32 = per_cpu(lapic_id, pcpu_id);
icr.value_32.lo_32 = (INTR_LAPIC_ICR_PHYSICAL << 11U) | (INTR_LAPIC_ICR_INIT << 8U);
msr_write(MSR_IA32_EXT_APIC_ICR, icr.value);
} else {
ASSERT(false, "pCPU%u not in active", pcpu_id);
}
}