/** @interface_method_impl{PDMDEVHLPR0,pfnPCISetIrq} */
static DECLCALLBACK(void) pdmR0DevHlp_ISASetIrq(PPDMDEVINS pDevIns, int iIrq, int iLevel)
{
PDMDEV_ASSERT_DEVINS(pDevIns);
LogFlow(("pdmR0DevHlp_ISASetIrq: caller=%p/%d: iIrq=%d iLevel=%d\n", pDevIns, pDevIns->iInstance, iIrq, iLevel));
PVM pVM = pDevIns->Internal.s.pVMR0;
pdmLock(pVM);
uint32_t uTagSrc;
if (iLevel & PDM_IRQ_LEVEL_HIGH)
{
pDevIns->Internal.s.uLastIrqTag = uTagSrc = pdmCalcIrqTag(pVM, pDevIns->idTracing);
if (iLevel == PDM_IRQ_LEVEL_HIGH)
VBOXVMM_PDM_IRQ_HIGH(VMMGetCpu(pVM), RT_LOWORD(uTagSrc), RT_HIWORD(uTagSrc));
else
VBOXVMM_PDM_IRQ_HILO(VMMGetCpu(pVM), RT_LOWORD(uTagSrc), RT_HIWORD(uTagSrc));
}
else
uTagSrc = pDevIns->Internal.s.uLastIrqTag;
bool fRc = pdmR0IsaSetIrq(pVM, iIrq, iLevel, uTagSrc);
if (iLevel == PDM_IRQ_LEVEL_LOW && fRc)
VBOXVMM_PDM_IRQ_LOW(VMMGetCpu(pVM), RT_LOWORD(uTagSrc), RT_HIWORD(uTagSrc));
pdmUnlock(pVM);
LogFlow(("pdmR0DevHlp_ISASetIrq: caller=%p/%d: returns void; uTagSrc=%#x\n", pDevIns, pDevIns->iInstance, uTagSrc));
}
/** @interface_method_impl{PDMHPETHLPR3,pfnSetIrq} */
static DECLCALLBACK(int) pdmR3HpetHlp_SetIrq(PPDMDEVINS pDevIns, int iIrq, int iLevel)
{
PDMDEV_ASSERT_DEVINS(pDevIns);
LogFlow(("pdmR3HpetHlp_SetIrq: caller='%s'/%d: iIrq=%d iLevel=%d\n", pDevIns->pReg->szName, pDevIns->iInstance, iIrq, iLevel));
PVM pVM = pDevIns->Internal.s.pVMR3;
pdmLock(pVM);
uint32_t uTagSrc;
if (iLevel & PDM_IRQ_LEVEL_HIGH)
{
pDevIns->Internal.s.uLastIrqTag = uTagSrc = pdmCalcIrqTag(pVM, pDevIns->idTracing);
if (iLevel == PDM_IRQ_LEVEL_HIGH)
VBOXVMM_PDM_IRQ_HIGH(VMMGetCpu(pVM), RT_LOWORD(uTagSrc), RT_HIWORD(uTagSrc));
else
VBOXVMM_PDM_IRQ_HILO(VMMGetCpu(pVM), RT_LOWORD(uTagSrc), RT_HIWORD(uTagSrc));
}
else
uTagSrc = pDevIns->Internal.s.uLastIrqTag;
PDMIsaSetIrq(pVM, iIrq, iLevel, uTagSrc); /* (The API takes the lock recursively.) */
if (iLevel == PDM_IRQ_LEVEL_LOW)
VBOXVMM_PDM_IRQ_LOW(VMMGetCpu(pVM), RT_LOWORD(uTagSrc), RT_HIWORD(uTagSrc));
pdmUnlock(pVM);
return 0;
}
/** @interface_method_impl{PDMDEVHLPR0,pfnPCISetIrq} */
static DECLCALLBACK(void) pdmR0DevHlp_PCISetIrq(PPDMDEVINS pDevIns, int iIrq, int iLevel)
{
PDMDEV_ASSERT_DEVINS(pDevIns);
LogFlow(("pdmR0DevHlp_PCISetIrq: caller=%p/%d: iIrq=%d iLevel=%d\n", pDevIns, pDevIns->iInstance, iIrq, iLevel));
PVM pVM = pDevIns->Internal.s.pVMR0;
PPCIDEVICE pPciDev = pDevIns->Internal.s.pPciDeviceR0;
PPDMPCIBUS pPciBus = pDevIns->Internal.s.pPciBusR0;
pdmLock(pVM);
uint32_t uTagSrc;
if (iLevel & PDM_IRQ_LEVEL_HIGH)
{
pDevIns->Internal.s.uLastIrqTag = uTagSrc = pdmCalcIrqTag(pVM, pDevIns->idTracing);
if (iLevel == PDM_IRQ_LEVEL_HIGH)
VBOXVMM_PDM_IRQ_HIGH(VMMGetCpu(pVM), RT_LOWORD(uTagSrc), RT_HIWORD(uTagSrc));
else
VBOXVMM_PDM_IRQ_HILO(VMMGetCpu(pVM), RT_LOWORD(uTagSrc), RT_HIWORD(uTagSrc));
}
else
uTagSrc = pDevIns->Internal.s.uLastIrqTag;
if ( pPciDev
&& pPciBus
&& pPciBus->pDevInsR0)
{
pPciBus->pfnSetIrqR0(pPciBus->pDevInsR0, pPciDev, iIrq, iLevel, uTagSrc);
pdmUnlock(pVM);
if (iLevel == PDM_IRQ_LEVEL_LOW)
VBOXVMM_PDM_IRQ_LOW(VMMGetCpu(pVM), RT_LOWORD(uTagSrc), RT_HIWORD(uTagSrc));
}
else
{
pdmUnlock(pVM);
/* queue for ring-3 execution. */
PPDMDEVHLPTASK pTask = (PPDMDEVHLPTASK)PDMQueueAlloc(pVM->pdm.s.pDevHlpQueueR0);
AssertReturnVoid(pTask);
pTask->enmOp = PDMDEVHLPTASKOP_PCI_SET_IRQ;
pTask->pDevInsR3 = PDMDEVINS_2_R3PTR(pDevIns);
pTask->u.SetIRQ.iIrq = iIrq;
pTask->u.SetIRQ.iLevel = iLevel;
pTask->u.SetIRQ.uTagSrc = uTagSrc;
PDMQueueInsertEx(pVM->pdm.s.pDevHlpQueueR0, &pTask->Core, 0);
}
LogFlow(("pdmR0DevHlp_PCISetIrq: caller=%p/%d: returns void; uTagSrc=%#x\n", pDevIns, pDevIns->iInstance, uTagSrc));
}
/**
* Sets the pending interrupt coming from ISA source or HPET.
*
* @returns VBox status code.
* @param pVM Pointer to the VM.
* @param u8Irq The IRQ line.
* @param u8Level The new level.
* @param uTagSrc The IRQ tag and source tracer ID.
*/
VMMDECL(int) PDMIsaSetIrq(PVM pVM, uint8_t u8Irq, uint8_t u8Level, uint32_t uTagSrc)
{
pdmLock(pVM);
/** @todo put the IRQ13 code elsewhere to avoid this unnecessary bloat. */
if (!uTagSrc && (u8Level & PDM_IRQ_LEVEL_HIGH)) /* FPU IRQ */
{
if (u8Level == PDM_IRQ_LEVEL_HIGH)
VBOXVMM_PDM_IRQ_HIGH(VMMGetCpu(pVM), 0, 0);
else
VBOXVMM_PDM_IRQ_HILO(VMMGetCpu(pVM), 0, 0);
}
int rc = VERR_PDM_NO_PIC_INSTANCE;
if (pVM->pdm.s.Pic.CTX_SUFF(pDevIns))
{
Assert(pVM->pdm.s.Pic.CTX_SUFF(pfnSetIrq));
pVM->pdm.s.Pic.CTX_SUFF(pfnSetIrq)(pVM->pdm.s.Pic.CTX_SUFF(pDevIns), u8Irq, u8Level, uTagSrc);
rc = VINF_SUCCESS;
}
if (pVM->pdm.s.IoApic.CTX_SUFF(pDevIns))
{
Assert(pVM->pdm.s.IoApic.CTX_SUFF(pfnSetIrq));
/*
* Apply Interrupt Source Override rules.
* See ACPI 4.0 specification 5.2.12.4 and 5.2.12.5 for details on
* interrupt source override.
* Shortly, ISA IRQ0 is electically connected to pin 2 on IO-APIC, and some OSes,
* notably recent OS X rely upon this configuration.
* If changing, also update override rules in MADT and MPS.
*/
/* ISA IRQ0 routed to pin 2, all others ISA sources are identity mapped */
if (u8Irq == 0)
u8Irq = 2;
pVM->pdm.s.IoApic.CTX_SUFF(pfnSetIrq)(pVM->pdm.s.IoApic.CTX_SUFF(pDevIns), u8Irq, u8Level, uTagSrc);
rc = VINF_SUCCESS;
}
if (!uTagSrc && u8Level == PDM_IRQ_LEVEL_LOW)
VBOXVMM_PDM_IRQ_LOW(VMMGetCpu(pVM), 0, 0);
pdmUnlock(pVM);
return rc;
}
