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IOC mediator: Implement VM monitor operations

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This patch implements VM monitor operations including stop/suspend/resume.
For other VM monitor operations(pause/unpause/query), IOC mediator would not
register callbacks for them since there is no requirements from VM Manager.

Signed-off-by: Yuan Liu <yuan1.liu@intel.com>
Reviewed-by: Yu Wang <yu1.wang@intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
This commit is contained in:
Yuan Liu
2018-06-20 16:44:59 +08:00
committed by lijinxia
parent 32fccb2f43
commit 48067b1cab
3 changed files with 169 additions and 5 deletions
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48
devicemodel/hw/platform/ioc_cbc.c
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@@ -601,7 +601,7 @@ cbc_update_wakeup_reason(struct cbc_pkt *pkt, uint32_t reason)
/*
* Mask the bits of wakeup reason that are not allowed by IOC mediator.
* Only allow Ignition button, cardoor, RTC and SoC currently.
* Only allow Ignition button, cardoor, RTC, SOC and force S5 currently.
*/
reason &= CBC_WK_RSN_ALL;
@@ -814,6 +814,45 @@ cbc_rx_handler(struct cbc_pkt *pkt)
}
}
/*
* Convert VM request to the wakeup reason.
*/
static bool
send_wakeup_reason_of_vm_request(struct cbc_pkt *pkt)
{
uint32_t reason;
switch (pkt->ioc->vm_req) {
case VM_REQ_STOP:
/*
* Force S5 and SoC bits are set for emulating
* shutdown wakeup reason that VM initiates stop
*/
reason = CBC_WK_RSN_FS5 | CBC_WK_RSN_SOC;
break;
case VM_REQ_SUSPEND:
/*
* Only SoC bit is set for emulating suspend
* wakeup reason that VM initiates suspend.
*/
reason = CBC_WK_RSN_SOC;
break;
default:
/*
* There is no need to emulate wakeup reasons for VM_REQ_RESUME
* and VM_REQ_NONE VM requests since VM manager just only asks
* IOC mediator to emulate ignition off wakeup reason for
* VM_REQ_STOP and VM_REQ_SUSPEND, otherwise call primary
* periodic wakeup reason.
*/
return false;
}
cbc_update_wakeup_reason(pkt, reason);
cbc_send_pkt(pkt);
return true;
}
/*
* Tx handler mainly processes tx direction data flow,
* the tx direction is that native CBC cdevs -> virtual UART.
@@ -824,7 +863,12 @@ cbc_tx_handler(struct cbc_pkt *pkt)
if (pkt->req->rtype == CBC_REQ_T_PROT && pkt->ioc->cbc_enable) {
switch (pkt->req->id) {
case IOC_NATIVE_LFCC:
cbc_process_wakeup_reason(pkt);
/* Check VM request firstly */
if (send_wakeup_reason_of_vm_request(pkt) == false) {
/* Primary periodic wakeup reason */
cbc_process_wakeup_reason(pkt);
}
break;
case IOC_NATIVE_SIGNAL:
cbc_process_signal(pkt);