/** @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));
}
bool WinAltGrMonitor::isCurrentEventDefinitelyFake(unsigned iDownScanCode,
bool fKeyDown,
bool fExtendedKey) const
{
MSG peekMsg;
LONG messageTime = GetMessageTime();
if ( iDownScanCode != 0x1d /* scan code: Control */ || fExtendedKey)
return false;
if (!PeekMessage(&peekMsg, NULL, WM_KEYFIRST, WM_KEYLAST, PM_NOREMOVE))
return false;
if (messageTime != peekMsg.time)
return false;
if ( fKeyDown
&& (peekMsg.message != WM_KEYDOWN && peekMsg.message != WM_SYSKEYDOWN))
return false;
if ( !fKeyDown
&& (peekMsg.message != WM_KEYUP && peekMsg.message != WM_SYSKEYUP))
return false;
if ( ((RT_HIWORD(peekMsg.lParam) & 0xFF) != 0x38 /* scan code: Alt */)
|| !(RT_HIWORD(peekMsg.lParam) & KF_EXTENDED))
return false;
if (!doesCurrentLayoutHaveAltGr())
return false;
return true;
}
/** @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;
}
/**
* @brief isSyntheticLCtrl
* @param pMsg Windows WM_[SYS]KEY* event message structure
* @return true if this is a synthetic LCtrl event, false otherwise
* This function is a heuristic to tell whether a key event is the first in
* a synthetic LCtrl+RAlt sequence which Windows uses to signal AltGr. Our
* heuristic is in two parts. First of all, we check whether there is a pending
* RAlt key event matching this LCtrl event (i.e. both key up or both key down)
* and if there is, we check whether the current layout has an AltGr key. We
* check this by looking to see if any of the layout-dependent keys has a symbol
* associated when AltGr is pressed.
*/
static bool isSyntheticLCtrl(MSG *pMsg)
{
MSG peekMsg;
/** Keyboard state array with VK_CONTROL and VK_MENU depressed. */
const BYTE auKeyStates[256] =
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x80, 0x80 };
WORD ach;
unsigned i;
Assert( pMsg->message == WM_KEYDOWN || pMsg->message == WM_SYSKEYDOWN
|| pMsg->message == WM_KEYUP || pMsg->message == WM_SYSKEYUP);
if ( ((RT_HIWORD(pMsg->lParam) & 0xFF) != 0x1d /* scan code: Control */)
|| RT_HIWORD(pMsg->lParam) & KF_EXTENDED)
return false;
if (!PeekMessage(&peekMsg, NULL, WM_KEYFIRST, WM_KEYLAST, PM_NOREMOVE))
return false;
if ( (pMsg->message == WM_KEYDOWN || pMsg->message == WM_SYSKEYDOWN)
&& (peekMsg.message != WM_KEYDOWN && peekMsg.message != WM_SYSKEYDOWN))
return false;
if ( (pMsg->message == WM_KEYUP || pMsg->message == WM_SYSKEYUP)
&& (peekMsg.message != WM_KEYUP && peekMsg.message != WM_SYSKEYUP))
return false;
if ( ((RT_HIWORD(peekMsg.lParam) & 0xFF) != 0x38 /* scan code: Alt */)
|| !(RT_HIWORD(peekMsg.lParam) & KF_EXTENDED))
return false;
/* If we got this far then we have a key event which could potentially
* be a synthetic left control. Now we check to see whether the current
* keyboard layout actually has an AltGr key by checking whether any of
* the keys which might do produce a symbol when AltGr (Control + Alt) is
* depressed. Generally this loop will exit pretty early (it exits on the
* first iteration for my German layout). If there is no AltGr key in the
* layout then it will run right through, but that should not happen very
* often as we should hardly ever reach the loop in that case.
*
* In theory we could do this once and cache the result, but that involves
* tracking layout switches to invalidate the cache, and I don't think
* that the added complexity is worth the price.
*/
for (i = '0'; i <= VK_OEM_102; ++i)
{
if (ToAscii(i, 0, auKeyStates, &ach, 0))
break;
/* Skip ranges of virtual keys which are undefined or not relevant. */
if (i == '9')
i = 'A' - 1;
if (i == 'Z')
i = VK_OEM_1 - 1;
if (i == VK_OEM_3)
i = VK_OEM_4 - 1;
if (i == VK_OEM_8)
i = VK_OEM_102 - 1;
}
if (i > VK_OEM_102)
return false;
return true;
}
/**
* 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{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));
}
/**
* @copydoc RTNetIPv6PseudoChecksumBits
*/
DECLINLINE(uint32_t) rtNetIPv6PseudoChecksumBits(PCRTNETADDRIPV6 pSrcAddr, PCRTNETADDRIPV6 pDstAddr,
uint8_t bProtocol, uint32_t cbPkt)
{
uint32_t u32Sum = pSrcAddr->au16[0]
+ pSrcAddr->au16[1]
+ pSrcAddr->au16[2]
+ pSrcAddr->au16[3]
+ pSrcAddr->au16[4]
+ pSrcAddr->au16[5]
+ pSrcAddr->au16[6]
+ pSrcAddr->au16[7]
+ pDstAddr->au16[0]
+ pDstAddr->au16[1]
+ pDstAddr->au16[2]
+ pDstAddr->au16[3]
+ pDstAddr->au16[4]
+ pDstAddr->au16[5]
+ pDstAddr->au16[6]
+ pDstAddr->au16[7]
+ RT_H2BE_U16(RT_HIWORD(cbPkt))
+ RT_H2BE_U16(RT_LOWORD(cbPkt))
+ 0
+ RT_H2BE_U16(RT_MAKE_U16(bProtocol, 0));
return u32Sum;
}
/** @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;
}
