/** @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));
}
/**
* Gets the pending interrupt.
*
* @returns VBox status code.
* @param pVCpu Pointer to the VMCPU.
* @param pu8Interrupt Where to store the interrupt on success.
*/
VMMDECL(int) PDMGetInterrupt(PVMCPU pVCpu, uint8_t *pu8Interrupt)
{
PVM pVM = pVCpu->CTX_SUFF(pVM);
pdmLock(pVM);
/*
* The local APIC has a higher priority than the PIC.
*/
if (VMCPU_FF_IS_SET(pVCpu, VMCPU_FF_INTERRUPT_APIC))
{
VMCPU_FF_CLEAR(pVCpu, VMCPU_FF_INTERRUPT_APIC);
Assert(pVM->pdm.s.Apic.CTX_SUFF(pDevIns));
Assert(pVM->pdm.s.Apic.CTX_SUFF(pfnGetInterrupt));
uint32_t uTagSrc;
int i = pVM->pdm.s.Apic.CTX_SUFF(pfnGetInterrupt)(pVM->pdm.s.Apic.CTX_SUFF(pDevIns), pVCpu->idCpu, &uTagSrc);
AssertMsg(i <= 255 && i >= 0, ("i=%d\n", i));
if (i >= 0)
{
pdmUnlock(pVM);
*pu8Interrupt = (uint8_t)i;
VBOXVMM_PDM_IRQ_GET(pVCpu, RT_LOWORD(uTagSrc), RT_HIWORD(uTagSrc), i);
return VINF_SUCCESS;
}
}
/*
* Check the PIC.
*/
if (VMCPU_FF_IS_SET(pVCpu, VMCPU_FF_INTERRUPT_PIC))
{
VMCPU_FF_CLEAR(pVCpu, VMCPU_FF_INTERRUPT_PIC);
Assert(pVM->pdm.s.Pic.CTX_SUFF(pDevIns));
Assert(pVM->pdm.s.Pic.CTX_SUFF(pfnGetInterrupt));
uint32_t uTagSrc;
int i = pVM->pdm.s.Pic.CTX_SUFF(pfnGetInterrupt)(pVM->pdm.s.Pic.CTX_SUFF(pDevIns), &uTagSrc);
AssertMsg(i <= 255 && i >= 0, ("i=%d\n", i));
if (i >= 0)
{
pdmUnlock(pVM);
*pu8Interrupt = (uint8_t)i;
VBOXVMM_PDM_IRQ_GET(pVCpu, RT_LOWORD(uTagSrc), RT_HIWORD(uTagSrc), i);
return VINF_SUCCESS;
}
}
/** @todo Figure out exactly why we can get here without anything being set. (REM) */
pdmUnlock(pVM);
return VERR_NO_DATA;
}
/** @interface_method_impl{PDMPCIHLPR0,pfnIoApicSetIrq} */
static DECLCALLBACK(void) pdmR0PciHlp_IoApicSetIrq(PPDMDEVINS pDevIns, int iIrq, int iLevel, uint32_t uTagSrc)
{
PDMDEV_ASSERT_DEVINS(pDevIns);
Log4(("pdmR0PciHlp_IoApicSetIrq: iIrq=%d iLevel=%d uTagSrc=%#x\n", iIrq, iLevel, uTagSrc));
PVM pVM = pDevIns->Internal.s.pVMR0;
if (pVM->pdm.s.IoApic.pDevInsR0)
{
pdmLock(pVM);
pVM->pdm.s.IoApic.pfnSetIrqR0(pVM->pdm.s.IoApic.pDevInsR0, iIrq, iLevel, uTagSrc);
pdmUnlock(pVM);
}
else if (pVM->pdm.s.IoApic.pDevInsR3)
{
/* queue for ring-3 execution. */
PPDMDEVHLPTASK pTask = (PPDMDEVHLPTASK)PDMQueueAlloc(pVM->pdm.s.pDevHlpQueueR0);
if (pTask)
{
pTask->enmOp = PDMDEVHLPTASKOP_IOAPIC_SET_IRQ;
pTask->pDevInsR3 = NIL_RTR3PTR; /* not required */
pTask->u.SetIRQ.iIrq = iIrq;
pTask->u.SetIRQ.iLevel = iLevel;
pTask->u.SetIRQ.uTagSrc = uTagSrc;
PDMQueueInsertEx(pVM->pdm.s.pDevHlpQueueR0, &pTask->Core, 0);
}
else
AssertMsgFailed(("We're out of devhlp queue items!!!\n"));
}
}
/** @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));
}
/**
* Sets an irq on the I/O APIC.
*
* @param pVM The VM handle.
* @param iIrq The irq.
* @param iLevel The new level.
*/
static void pdmRCIoApicSetIrq(PVM pVM, int iIrq, int iLevel)
{
if (pVM->pdm.s.IoApic.pDevInsRC)
{
pdmLock(pVM);
pVM->pdm.s.IoApic.pfnSetIrqRC(pVM->pdm.s.IoApic.pDevInsRC, iIrq, iLevel);
pdmUnlock(pVM);
}
else if (pVM->pdm.s.IoApic.pDevInsR3)
{
/* queue for ring-3 execution. */
PPDMDEVHLPTASK pTask = (PPDMDEVHLPTASK)PDMQueueAlloc(pVM->pdm.s.pDevHlpQueueRC);
if (pTask)
{
pTask->enmOp = PDMDEVHLPTASKOP_IOAPIC_SET_IRQ;
pTask->pDevInsR3 = NIL_RTR3PTR; /* not required */
pTask->u.SetIRQ.iIrq = iIrq;
pTask->u.SetIRQ.iLevel = iLevel;
PDMQueueInsertEx(pVM->pdm.s.pDevHlpQueueRC, &pTask->Core, 0);
}
else
AssertMsgFailed(("We're out of devhlp queue items!!!\n"));
}
}
/** @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{PDMDEVHLPRC,pfnPCISetIrq} */
static DECLCALLBACK(void) pdmRCDevHlp_PCISetIrq(PPDMDEVINS pDevIns, int iIrq, int iLevel)
{
PDMDEV_ASSERT_DEVINS(pDevIns);
LogFlow(("pdmRCDevHlp_PCISetIrq: caller=%p/%d: iIrq=%d iLevel=%d\n", pDevIns, pDevIns->iInstance, iIrq, iLevel));
PVM pVM = pDevIns->Internal.s.pVMRC;
PPCIDEVICE pPciDev = pDevIns->Internal.s.pPciDeviceRC;
PPDMPCIBUS pPciBus = pDevIns->Internal.s.pPciBusRC;
if ( pPciDev
&& pPciBus
&& pPciBus->pDevInsRC)
{
pdmLock(pVM);
pPciBus->pfnSetIrqRC(pPciBus->pDevInsRC, pPciDev, iIrq, iLevel);
pdmUnlock(pVM);
}
else
{
/* queue for ring-3 execution. */
PPDMDEVHLPTASK pTask = (PPDMDEVHLPTASK)PDMQueueAlloc(pVM->pdm.s.pDevHlpQueueRC);
if (pTask)
{
pTask->enmOp = PDMDEVHLPTASKOP_PCI_SET_IRQ;
pTask->pDevInsR3 = PDMDEVINS_2_R3PTR(pDevIns);
pTask->u.SetIRQ.iIrq = iIrq;
pTask->u.SetIRQ.iLevel = iLevel;
PDMQueueInsertEx(pVM->pdm.s.pDevHlpQueueRC, &pTask->Core, 0);
}
else
AssertMsgFailed(("We're out of devhlp queue items!!!\n"));
}
LogFlow(("pdmRCDevHlp_PCISetIrq: caller=%p/%d: returns void\n", pDevIns, pDevIns->iInstance));
}
/**
* Sends an MSI to I/O APIC.
*
* @param pVM The VM handle.
* @param GCAddr Address of the message.
* @param uValue Value of the message.
*/
static void pdmRCIoApicSendMsi(PVM pVM, RTGCPHYS GCAddr, uint32_t uValue)
{
if (pVM->pdm.s.IoApic.pDevInsRC)
{
pdmLock(pVM);
pVM->pdm.s.IoApic.pfnSendMsiRC(pVM->pdm.s.IoApic.pDevInsRC, GCAddr, uValue);
pdmUnlock(pVM);
}
}
/** @interface_method_impl{PDMPCIHLPR0,pfnIsaSetIrq} */
static DECLCALLBACK(void) pdmR0PciHlp_IsaSetIrq(PPDMDEVINS pDevIns, int iIrq, int iLevel, uint32_t uTagSrc)
{
PDMDEV_ASSERT_DEVINS(pDevIns);
Log4(("pdmR0PciHlp_IsaSetIrq: iIrq=%d iLevel=%d uTagSrc=%#x\n", iIrq, iLevel, uTagSrc));
PVM pVM = pDevIns->Internal.s.pVMR0;
pdmLock(pVM);
pdmR0IsaSetIrq(pVM, iIrq, iLevel, uTagSrc);
pdmUnlock(pVM);
}
/**
* Check if the APIC has a pending interrupt/if a TPR change would active one.
*
* @returns VINF_SUCCESS or VERR_PDM_NO_APIC_INSTANCE.
* @param pDevIns Device instance of the APIC.
* @param pfPending Pending state (out).
*/
VMMDECL(int) PDMApicHasPendingIrq(PVM pVM, bool *pfPending)
{
if (pVM->pdm.s.Apic.CTX_SUFF(pDevIns))
{
Assert(pVM->pdm.s.Apic.CTX_SUFF(pfnSetTPR));
pdmLock(pVM);
*pfPending = pVM->pdm.s.Apic.CTX_SUFF(pfnHasPendingIrq)(pVM->pdm.s.Apic.CTX_SUFF(pDevIns));
pdmUnlock(pVM);
return VINF_SUCCESS;
}
return VERR_PDM_NO_APIC_INSTANCE;
}
/**
* Sets the pending I/O APIC interrupt.
*
* @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.
*/
VMM_INT_DECL(int) PDMIoApicSetIrq(PVM pVM, uint8_t u8Irq, uint8_t u8Level, uint32_t uTagSrc)
{
if (pVM->pdm.s.IoApic.CTX_SUFF(pDevIns))
{
Assert(pVM->pdm.s.IoApic.CTX_SUFF(pfnSetIrq));
pdmLock(pVM);
pVM->pdm.s.IoApic.CTX_SUFF(pfnSetIrq)(pVM->pdm.s.IoApic.CTX_SUFF(pDevIns), u8Irq, u8Level, uTagSrc);
pdmUnlock(pVM);
return VINF_SUCCESS;
}
return VERR_PDM_NO_PIC_INSTANCE;
}
/**
* Send a MSI to an I/O APIC.
*
* @returns VBox status code.
* @param pVM Pointer to the VM.
* @param GCAddr Request address.
* @param u8Value Request value.
* @param uTagSrc The IRQ tag and source tracer ID.
*/
VMM_INT_DECL(int) PDMIoApicSendMsi(PVM pVM, RTGCPHYS GCAddr, uint32_t uValue, uint32_t uTagSrc)
{
if (pVM->pdm.s.IoApic.CTX_SUFF(pDevIns))
{
Assert(pVM->pdm.s.IoApic.CTX_SUFF(pfnSendMsi));
pdmLock(pVM);
pVM->pdm.s.IoApic.CTX_SUFF(pfnSendMsi)(pVM->pdm.s.IoApic.CTX_SUFF(pDevIns), GCAddr, uValue, uTagSrc);
pdmUnlock(pVM);
return VINF_SUCCESS;
}
return VERR_PDM_NO_PIC_INSTANCE;
}
/**
* Set the APIC base.
*
* @returns VBox status code.
* @param pVM Pointer to the VM.
* @param u64Base The new base.
*/
VMMDECL(int) PDMApicSetBase(PVM pVM, uint64_t u64Base)
{
if (pVM->pdm.s.Apic.CTX_SUFF(pDevIns))
{
Assert(pVM->pdm.s.Apic.CTX_SUFF(pfnSetBase));
pdmLock(pVM);
pVM->pdm.s.Apic.CTX_SUFF(pfnSetBase)(pVM->pdm.s.Apic.CTX_SUFF(pDevIns), u64Base);
pdmUnlock(pVM);
return VINF_SUCCESS;
}
return VERR_PDM_NO_APIC_INSTANCE;
}
/**
* Set the TPR (task priority register?).
*
* @returns VBox status code.
* @param pVCpu Pointer to the VMCPU.
* @param u8TPR The new TPR.
*/
VMMDECL(int) PDMApicSetTPR(PVMCPU pVCpu, uint8_t u8TPR)
{
PVM pVM = pVCpu->CTX_SUFF(pVM);
if (pVM->pdm.s.Apic.CTX_SUFF(pDevIns))
{
Assert(pVM->pdm.s.Apic.CTX_SUFF(pfnSetTPR));
pdmLock(pVM);
pVM->pdm.s.Apic.CTX_SUFF(pfnSetTPR)(pVM->pdm.s.Apic.CTX_SUFF(pDevIns), pVCpu->idCpu, u8TPR);
pdmUnlock(pVM);
return VINF_SUCCESS;
}
return VERR_PDM_NO_APIC_INSTANCE;
}
/**
* Get the APIC base from the APIC device. This is slow and involves
* taking the PDM lock, this is currently only used by CPUM to cache the APIC
* base once (during init./load state), all other callers should use
* PDMApicGetBase() and not this function.
*
* @returns VBox status code.
* @param pVM Pointer to the VMCPU.
* @param pu64Base Where to store the APIC base.
*/
VMMDECL(int) PDMApicGetBase(PVMCPU pVCpu, uint64_t *pu64Base)
{
PVM pVM = pVCpu->CTX_SUFF(pVM);
if (pVM->pdm.s.Apic.CTX_SUFF(pDevIns))
{
Assert(pVM->pdm.s.Apic.CTX_SUFF(pfnGetBase));
pdmLock(pVM);
*pu64Base = pVM->pdm.s.Apic.CTX_SUFF(pfnGetBase)(pVM->pdm.s.Apic.CTX_SUFF(pDevIns), pVCpu->idCpu);
pdmUnlock(pVM);
return VINF_SUCCESS;
}
*pu64Base = 0;
return VERR_PDM_NO_APIC_INSTANCE;
}
/**
* Check if the APIC has a pending interrupt/if a TPR change would active one.
*
* @returns VINF_SUCCESS or VERR_PDM_NO_APIC_INSTANCE.
* @param pVCpu Pointer to the VMCPU.
* @param pfPending Pending state (out).
*/
VMM_INT_DECL(int) PDMApicHasPendingIrq(PVMCPU pVCpu, bool *pfPending)
{
PVM pVM = pVCpu->CTX_SUFF(pVM);
if (pVM->pdm.s.Apic.CTX_SUFF(pDevIns))
{
Assert(pVM->pdm.s.Apic.CTX_SUFF(pfnSetTPR));
pdmLock(pVM);
*pfPending = pVM->pdm.s.Apic.CTX_SUFF(pfnHasPendingIrq)(pVM->pdm.s.Apic.CTX_SUFF(pDevIns), pVCpu->idCpu,
NULL /* pu8PendingIrq */);
pdmUnlock(pVM);
return VINF_SUCCESS;
}
return VERR_PDM_NO_APIC_INSTANCE;
}
/** @interface_method_impl{PDMPCIHLPR0,pfnIoApicSendMsi} */
static DECLCALLBACK(void) pdmR0PciHlp_IoApicSendMsi(PPDMDEVINS pDevIns, RTGCPHYS GCPhys, uint32_t uValue, uint32_t uTagSrc)
{
PDMDEV_ASSERT_DEVINS(pDevIns);
Log4(("pdmR0PciHlp_IoApicSendMsi: GCPhys=%p uValue=%d uTagSrc=%#x\n", GCPhys, uValue, uTagSrc));
PVM pVM = pDevIns->Internal.s.pVMR0;
if (pVM->pdm.s.IoApic.pDevInsR0)
{
pdmLock(pVM);
pVM->pdm.s.IoApic.pfnSendMsiR0(pVM->pdm.s.IoApic.pDevInsR0, GCPhys, uValue, uTagSrc);
pdmUnlock(pVM);
}
else
{
AssertFatalMsgFailed(("Lazy bastards!"));
}
}
/**
* 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;
}
/**
* Set the APIC base.
*
* @returns VBox status code.
* @param pVM Pointer to the VMCPU.
* @param u64Base The new base.
*/
VMMDECL(int) PDMApicSetBase(PVMCPU pVCpu, uint64_t u64Base)
{
PVM pVM = pVCpu->CTX_SUFF(pVM);
if (pVM->pdm.s.Apic.CTX_SUFF(pDevIns))
{
Assert(pVM->pdm.s.Apic.CTX_SUFF(pfnSetBase));
pdmLock(pVM);
pVM->pdm.s.Apic.CTX_SUFF(pfnSetBase)(pVM->pdm.s.Apic.CTX_SUFF(pDevIns), pVCpu->idCpu, u64Base);
/* Update CPUM's copy of the APIC base. */
PCPUMCTX pCtx = CPUMQueryGuestCtxPtr(pVCpu);
Assert(pCtx);
pCtx->msrApicBase = pVM->pdm.s.Apic.CTX_SUFF(pfnGetBase)(pVM->pdm.s.Apic.CTX_SUFF(pDevIns), pVCpu->idCpu);
pdmUnlock(pVM);
return VINF_SUCCESS;
}
return VERR_PDM_NO_APIC_INSTANCE;
}
/** @interface_method_impl{PDMAPICHLPR0,pfnCalcIrqTag} */
static DECLCALLBACK(uint32_t) pdmR0ApicHlp_CalcIrqTag(PPDMDEVINS pDevIns, uint8_t u8Level)
{
PDMDEV_ASSERT_DEVINS(pDevIns);
PVM pVM = pDevIns->Internal.s.pVMR0;
pdmLock(pVM);
uint32_t uTagSrc = pdmCalcIrqTag(pVM, pDevIns->idTracing);
if (u8Level == 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));
pdmUnlock(pVM);
LogFlow(("pdmR0ApicHlp_CalcIrqTag: caller=%p/%d: returns %#x (u8Level=%d)\n",
pDevIns, pDevIns->iInstance, uTagSrc, u8Level));
return uTagSrc;
}
/**
* Destroy a all queues owned by the specified driver.
*
* @returns VBox status code.
* @param pVM Pointer to the VM.
* @param pDrvIns Driver instance.
* @thread Emulation thread only.
*/
VMMR3_INT_DECL(int) PDMR3QueueDestroyDriver(PVM pVM, PPDMDRVINS pDrvIns)
{
LogFlow(("PDMR3QueueDestroyDriver: pDrvIns=%p\n", pDrvIns));
/*
* Validate input.
*/
if (!pDrvIns)
return VERR_INVALID_PARAMETER;
PUVM pUVM = pVM->pUVM;
pdmLock(pVM);
/*
* Unlink it.
*/
PPDMQUEUE pQueueNext = pUVM->pdm.s.pQueuesTimer;
PPDMQUEUE pQueue = pUVM->pdm.s.pQueuesForced;
do
{
while (pQueue)
{
if ( pQueue->enmType == PDMQUEUETYPE_DRV
&& pQueue->u.Drv.pDrvIns == pDrvIns)
{
PPDMQUEUE pQueueDestroy = pQueue;
pQueue = pQueue->pNext;
int rc = PDMR3QueueDestroy(pQueueDestroy);
AssertRC(rc);
}
else
pQueue = pQueue->pNext;
}
/* next queue list */
pQueue = pQueueNext;
pQueueNext = NULL;
} while (pQueue);
pdmUnlock(pVM);
return VINF_SUCCESS;
}
/**
* Destroy a queue.
*
* @returns VBox status code.
* @param pQueue Queue to destroy.
* @thread Emulation thread only.
*/
VMMR3_INT_DECL(int) PDMR3QueueDestroy(PPDMQUEUE pQueue)
{
LogFlow(("PDMR3QueueDestroy: pQueue=%p\n", pQueue));
/*
* Validate input.
*/
if (!pQueue)
return VERR_INVALID_PARAMETER;
Assert(pQueue && pQueue->pVMR3);
PVM pVM = pQueue->pVMR3;
PUVM pUVM = pVM->pUVM;
pdmLock(pVM);
/*
* Unlink it.
*/
if (pQueue->pTimer)
{
if (pUVM->pdm.s.pQueuesTimer != pQueue)
{
PPDMQUEUE pCur = pUVM->pdm.s.pQueuesTimer;
while (pCur)
{
if (pCur->pNext == pQueue)
{
pCur->pNext = pQueue->pNext;
break;
}
pCur = pCur->pNext;
}
AssertMsg(pCur, ("Didn't find the queue!\n"));
}
else
pUVM->pdm.s.pQueuesTimer = pQueue->pNext;
}
else
{
if (pUVM->pdm.s.pQueuesForced != pQueue)
{
PPDMQUEUE pCur = pUVM->pdm.s.pQueuesForced;
while (pCur)
{
if (pCur->pNext == pQueue)
{
pCur->pNext = pQueue->pNext;
break;
}
pCur = pCur->pNext;
}
AssertMsg(pCur, ("Didn't find the queue!\n"));
}
else
pUVM->pdm.s.pQueuesForced = pQueue->pNext;
}
pQueue->pNext = NULL;
pQueue->pVMR3 = NULL;
pdmUnlock(pVM);
/*
* Deregister statistics.
*/
STAMR3DeregisterF(pVM->pUVM, "/PDM/Queue/%s/cbItem", pQueue->pszName);
/*
* Destroy the timer and free it.
*/
if (pQueue->pTimer)
{
TMR3TimerDestroy(pQueue->pTimer);
pQueue->pTimer = NULL;
}
if (pQueue->pVMRC)
{
pQueue->pVMRC = NIL_RTRCPTR;
pQueue->pVMR0 = NIL_RTR0PTR;
MMHyperFree(pVM, pQueue);
}
else
MMR3HeapFree(pQueue);
return VINF_SUCCESS;
}
/**
* Internal worker for the queue creation apis.
*
* @returns VBox status.
* @param pVM Pointer to the VM.
* @param cbItem Item size.
* @param cItems Number of items.
* @param cMilliesInterval Number of milliseconds between polling the queue.
* If 0 then the emulation thread will be notified whenever an item arrives.
* @param fRZEnabled Set if the queue will be used from RC/R0 and need to be allocated from the hyper heap.
* @param pszName The queue name. Unique. Not copied.
* @param ppQueue Where to store the queue handle.
*/
static int pdmR3QueueCreate(PVM pVM, size_t cbItem, uint32_t cItems, uint32_t cMilliesInterval, bool fRZEnabled,
const char *pszName, PPDMQUEUE *ppQueue)
{
PUVM pUVM = pVM->pUVM;
/*
* Validate input.
*/
AssertMsgReturn(cbItem >= sizeof(PDMQUEUEITEMCORE) && cbItem < _1M, ("cbItem=%zu\n", cbItem), VERR_OUT_OF_RANGE);
AssertMsgReturn(cItems >= 1 && cItems <= _64K, ("cItems=%u\n", cItems), VERR_OUT_OF_RANGE);
/*
* Align the item size and calculate the structure size.
*/
cbItem = RT_ALIGN(cbItem, sizeof(RTUINTPTR));
size_t cb = cbItem * cItems + RT_ALIGN_Z(RT_OFFSETOF(PDMQUEUE, aFreeItems[cItems + PDMQUEUE_FREE_SLACK]), 16);
PPDMQUEUE pQueue;
int rc;
if (fRZEnabled)
rc = MMHyperAlloc(pVM, cb, 0, MM_TAG_PDM_QUEUE, (void **)&pQueue );
else
rc = MMR3HeapAllocZEx(pVM, MM_TAG_PDM_QUEUE, cb, (void **)&pQueue);
if (RT_FAILURE(rc))
return rc;
/*
* Initialize the data fields.
*/
pQueue->pVMR3 = pVM;
pQueue->pVMR0 = fRZEnabled ? pVM->pVMR0 : NIL_RTR0PTR;
pQueue->pVMRC = fRZEnabled ? pVM->pVMRC : NIL_RTRCPTR;
pQueue->pszName = pszName;
pQueue->cMilliesInterval = cMilliesInterval;
//pQueue->pTimer = NULL;
pQueue->cbItem = (uint32_t)cbItem;
pQueue->cItems = cItems;
//pQueue->pPendingR3 = NULL;
//pQueue->pPendingR0 = NULL;
//pQueue->pPendingRC = NULL;
pQueue->iFreeHead = cItems;
//pQueue->iFreeTail = 0;
PPDMQUEUEITEMCORE pItem = (PPDMQUEUEITEMCORE)((char *)pQueue + RT_ALIGN_Z(RT_OFFSETOF(PDMQUEUE, aFreeItems[cItems + PDMQUEUE_FREE_SLACK]), 16));
for (unsigned i = 0; i < cItems; i++, pItem = (PPDMQUEUEITEMCORE)((char *)pItem + cbItem))
{
pQueue->aFreeItems[i].pItemR3 = pItem;
if (fRZEnabled)
{
pQueue->aFreeItems[i].pItemR0 = MMHyperR3ToR0(pVM, pItem);
pQueue->aFreeItems[i].pItemRC = MMHyperR3ToRC(pVM, pItem);
}
}
/*
* Create timer?
*/
if (cMilliesInterval)
{
rc = TMR3TimerCreateInternal(pVM, TMCLOCK_REAL, pdmR3QueueTimer, pQueue, "Queue timer", &pQueue->pTimer);
if (RT_SUCCESS(rc))
{
rc = TMTimerSetMillies(pQueue->pTimer, cMilliesInterval);
if (RT_FAILURE(rc))
{
AssertMsgFailed(("TMTimerSetMillies failed rc=%Rrc\n", rc));
int rc2 = TMR3TimerDestroy(pQueue->pTimer);
AssertRC(rc2);
}
}
else
AssertMsgFailed(("TMR3TimerCreateInternal failed rc=%Rrc\n", rc));
if (RT_FAILURE(rc))
{
if (fRZEnabled)
MMHyperFree(pVM, pQueue);
else
MMR3HeapFree(pQueue);
return rc;
}
/*
* Insert into the queue list for timer driven queues.
*/
pdmLock(pVM);
pQueue->pNext = pUVM->pdm.s.pQueuesTimer;
pUVM->pdm.s.pQueuesTimer = pQueue;
pdmUnlock(pVM);
}
else
{
/*
* Insert into the queue list for forced action driven queues.
* This is a FIFO, so insert at the end.
*/
/** @todo we should add a priority to the queues so we don't have to rely on
* the initialization order to deal with problems like @bugref{1605} (pgm/pcnet
* deadlock caused by the critsect queue to be last in the chain).
* - Update, the critical sections are no longer using queues, so this isn't a real
* problem any longer. The priority might be a nice feature for later though.
*/
pdmLock(pVM);
if (!pUVM->pdm.s.pQueuesForced)
pUVM->pdm.s.pQueuesForced = pQueue;
else
{
PPDMQUEUE pPrev = pUVM->pdm.s.pQueuesForced;
while (pPrev->pNext)
pPrev = pPrev->pNext;
pPrev->pNext = pQueue;
}
pdmUnlock(pVM);
}
/*
* Register the statistics.
*/
STAMR3RegisterF(pVM, &pQueue->cbItem, STAMTYPE_U32, STAMVISIBILITY_ALWAYS, STAMUNIT_BYTES, "Item size.", "/PDM/Queue/%s/cbItem", pQueue->pszName);
STAMR3RegisterF(pVM, &pQueue->cItems, STAMTYPE_U32, STAMVISIBILITY_ALWAYS, STAMUNIT_COUNT, "Queue size.", "/PDM/Queue/%s/cItems", pQueue->pszName);
STAMR3RegisterF(pVM, &pQueue->StatAllocFailures, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "PDMQueueAlloc failures.", "/PDM/Queue/%s/AllocFailures", pQueue->pszName);
STAMR3RegisterF(pVM, &pQueue->StatInsert, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_CALLS, "Calls to PDMQueueInsert.", "/PDM/Queue/%s/Insert", pQueue->pszName);
STAMR3RegisterF(pVM, &pQueue->StatFlush, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_CALLS, "Calls to pdmR3QueueFlush.", "/PDM/Queue/%s/Flush", pQueue->pszName);
STAMR3RegisterF(pVM, &pQueue->StatFlushLeftovers, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Left over items after flush.", "/PDM/Queue/%s/FlushLeftovers", pQueue->pszName);
#ifdef VBOX_WITH_STATISTICS
STAMR3RegisterF(pVM, &pQueue->StatFlushPrf, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_CALLS, "Profiling pdmR3QueueFlush.", "/PDM/Queue/%s/FlushPrf", pQueue->pszName);
STAMR3RegisterF(pVM, (void *)&pQueue->cStatPending, STAMTYPE_U32, STAMVISIBILITY_ALWAYS, STAMUNIT_COUNT, "Pending items.", "/PDM/Queue/%s/Pending", pQueue->pszName);
#endif
*ppQueue = pQueue;
return VINF_SUCCESS;
}
/** @interface_method_impl{PDMPCIHLPR3,pfnUnlock} */
static DECLCALLBACK(void) pdmR3PciHlp_Unlock(PPDMDEVINS pDevIns)
{
PDMDEV_ASSERT_DEVINS(pDevIns);
LogFlow(("pdmR3PciHlp_Unlock: caller='%s'/%d:\n", pDevIns->pReg->szName, pDevIns->iInstance));
pdmUnlock(pDevIns->Internal.s.pVMR3);
}
/**
* Destroy a queue.
*
* @returns VBox status code.
* @param pQueue Queue to destroy.
* @thread Emulation thread only.
*/
VMMR3_INT_DECL(int) PDMR3QueueDestroy(PPDMQUEUE pQueue)
{
LogFlow(("PDMR3QueueDestroy: pQueue=%p\n", pQueue));
/*
* Validate input.
*/
if (!pQueue)
return VERR_INVALID_PARAMETER;
Assert(pQueue && pQueue->pVMR3);
PVM pVM = pQueue->pVMR3;
PUVM pUVM = pVM->pUVM;
pdmLock(pVM);
/*
* Unlink it.
*/
if (pQueue->pTimer)
{
if (pUVM->pdm.s.pQueuesTimer != pQueue)
{
PPDMQUEUE pCur = pUVM->pdm.s.pQueuesTimer;
while (pCur)
{
if (pCur->pNext == pQueue)
{
pCur->pNext = pQueue->pNext;
break;
}
pCur = pCur->pNext;
}
AssertMsg(pCur, ("Didn't find the queue!\n"));
}
else
pUVM->pdm.s.pQueuesTimer = pQueue->pNext;
}
else
{
if (pUVM->pdm.s.pQueuesForced != pQueue)
{
PPDMQUEUE pCur = pUVM->pdm.s.pQueuesForced;
while (pCur)
{
if (pCur->pNext == pQueue)
{
pCur->pNext = pQueue->pNext;
break;
}
pCur = pCur->pNext;
}
AssertMsg(pCur, ("Didn't find the queue!\n"));
}
else
pUVM->pdm.s.pQueuesForced = pQueue->pNext;
}
pQueue->pNext = NULL;
pQueue->pVMR3 = NULL;
pdmUnlock(pVM);
/*
* Deregister statistics.
*/
STAMR3Deregister(pVM, &pQueue->cbItem);
STAMR3Deregister(pVM, &pQueue->cbItem);
STAMR3Deregister(pVM, &pQueue->StatAllocFailures);
STAMR3Deregister(pVM, &pQueue->StatInsert);
STAMR3Deregister(pVM, &pQueue->StatFlush);
STAMR3Deregister(pVM, &pQueue->StatFlushLeftovers);
#ifdef VBOX_WITH_STATISTICS
STAMR3Deregister(pVM, &pQueue->StatFlushPrf);
STAMR3Deregister(pVM, (void *)&pQueue->cStatPending);
#endif
/*
* Destroy the timer and free it.
*/
if (pQueue->pTimer)
{
TMR3TimerDestroy(pQueue->pTimer);
pQueue->pTimer = NULL;
}
if (pQueue->pVMRC)
{
pQueue->pVMRC = NIL_RTRCPTR;
pQueue->pVMR0 = NIL_RTR0PTR;
MMHyperFree(pVM, pQueue);
}
else
MMR3HeapFree(pQueue);
return VINF_SUCCESS;
}
/** @interface_method_impl{PDMPCIHLPR0,pfnUnlock} */
static DECLCALLBACK(void) pdmR0PciHlp_Unlock(PPDMDEVINS pDevIns)
{
PDMDEV_ASSERT_DEVINS(pDevIns);
pdmUnlock(pDevIns->Internal.s.pVMR0);
}