int VirtualKDPortOutHandler( PPDMDEVINS pDevIns, void *pvUser, RTIOPORT Port, uint32_t u32, unsigned cb )
{
struct
{
unsigned RequestSize;
unsigned MaxReplySize;
} RequestHeader = {0, };
static char CmdBody[262144];
if (Port == 0x5659)
{
int rc = PDMDevHlpPhysRead(pDevIns, (RTGCPHYS)u32, &RequestHeader, sizeof(RequestHeader));
if (!RT_SUCCESS(rc) || !RequestHeader.RequestSize)
return VINF_SUCCESS;
rc = PDMDevHlpPhysRead(pDevIns, (RTGCPHYS)(u32 + sizeof(RequestHeader)), CmdBody, RequestHeader.RequestSize);
if (!RT_SUCCESS(rc))
return VINF_SUCCESS;
ASSERT(!memcmp(CmdBody, g_szRPCCommandHeader, sizeof(g_szRPCCommandHeader) - 1));
char *pReply = NULL;
#ifdef KDVMWARE_USE_PROXY
unsigned done = KDRPCProxyHandler(CmdBody + sizeof(g_szRPCCommandHeader) - 1, RequestHeader.RequestSize - (sizeof(g_szRPCCommandHeader) - 1), &pReply);
#else
unsigned done = KDRPCDirectHandler(CmdBody + sizeof(g_szRPCCommandHeader) - 1, RequestHeader.RequestSize - (sizeof(g_szRPCCommandHeader) - 1), &pReply);
#endif
if (!pReply)
done = 0;
char Prefix[sizeof(done) + 2];
((unsigned *)Prefix)[0] = done + 2;
Prefix[sizeof(unsigned)] = '1';
Prefix[sizeof(unsigned) + 1] = ' ';
rc = PDMDevHlpPhysWrite(pDevIns, (RTGCPHYS)u32, Prefix, sizeof(Prefix));
if (!RT_SUCCESS(rc))
return VINF_SUCCESS;
if (done)
{
rc = PDMDevHlpPhysWrite(pDevIns, (RTGCPHYS)(u32 + sizeof(Prefix)), pReply, done);
if (!RT_SUCCESS(rc))
return VINF_SUCCESS;
}
return VINF_SUCCESS;
}
else
{
if ((Port == 0x5658) && (u32 == 0x564D5868))
s_bVMWareOpenChannelDetected = true;
else
s_bVMWareOpenChannelDetected = false;
return VINF_SUCCESS;
}
}
void vringReadDesc(PVPCISTATE pState, PVRING pVRing, uint32_t uIndex, PVRINGDESC pDesc)
{
//Log(("%s vringReadDesc: ring=%p idx=%u\n", INSTANCE(pState), pVRing, uIndex));
PDMDevHlpPhysRead(pState->CTX_SUFF(pDevIns),
pVRing->addrDescriptors + sizeof(VRINGDESC) * (uIndex % pVRing->uSize),
pDesc, sizeof(VRINGDESC));
}
uint16_t vringReadUsedIndex(PVPCISTATE pState, PVRING pVRing)
{
uint16_t tmp;
PDMDevHlpPhysRead(pState->CTX_SUFF(pDevIns),
pVRing->addrUsed + RT_OFFSETOF(VRINGUSED, uIndex),
&tmp, sizeof(tmp));
return tmp;
}
uint16_t vringReadAvailFlags(PVPCISTATE pState, PVRING pVRing)
{
uint16_t tmp;
PDMDevHlpPhysRead(pState->CTX_SUFF(pDevIns),
pVRing->addrAvail + RT_OFFSETOF(VRINGAVAIL, uFlags),
&tmp, sizeof(tmp));
return tmp;
}
uint16_t vringReadAvail(PVPCISTATE pState, PVRING pVRing, uint32_t uIndex)
{
uint16_t tmp;
PDMDevHlpPhysRead(pState->CTX_SUFF(pDevIns),
pVRing->addrAvail + RT_OFFSETOF(VRINGAVAIL, auRing[uIndex % pVRing->uSize]),
&tmp, sizeof(tmp));
return tmp;
}
void vringSetNotification(PVPCISTATE pState, PVRING pVRing, bool fEnabled)
{
uint16_t tmp;
PDMDevHlpPhysRead(pState->CTX_SUFF(pDevIns),
pVRing->addrUsed + RT_OFFSETOF(VRINGUSED, uFlags),
&tmp, sizeof(tmp));
if (fEnabled)
tmp &= ~ VRINGUSED_F_NO_NOTIFY;
else
tmp |= VRINGUSED_F_NO_NOTIFY;
PDMDevHlpPhysWrite(pState->CTX_SUFF(pDevIns),
pVRing->addrUsed + RT_OFFSETOF(VRINGUSED, uFlags),
&tmp, sizeof(tmp));
}
