maksw/nt-lite
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replace nob with ms' build, move disk creation to build.bat, major comment cleanup, remove old and stupid tests, overhaul interrupt management with per-CPU vector allocation, affinity migration and safe teardown, add proper IOAPIC routing and PCI MSI/MSI-X/INTx support, migrate drivers to the new interrupt API, integrate ACPICA with a proper OS services layer, move ACPI firmware events, power button handling and S5 shutdown into acpi.sys, add parallel driver startup and atomic publication, replace PnP arrays with dynamic lists, redesign service startup again to be asynchronous, add delayed startup mode for services, allow omitting keys in services.ini, fix acpi ec deferred work handling, fix kernel threads having garbage exit code.

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maksw committed 2026-10-28 15:18:43 +01:00
1 parent d36f19509c
commit 36eef8f58d
696 files changed
+147281 -7530
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code/kernel/io_device.c
+11 -16
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@@ -159,12 +159,10 @@ __declspec(dllexport) KSTATUS IoSetDeviceName(DEVICE_OBJECT* device,
return NTLSTATUS_SUCCESS;
}
// Implements the reference Device Object operation.
__declspec(dllexport) void IoReferenceDeviceObject(DEVICE_OBJECT* device) {
if (device) ObReferenceObject(&device->Header);
}
// Implements the dereference Device Object operation.
__declspec(dllexport) void IoDereferenceDeviceObject(DEVICE_OBJECT* device) {
if (device) ObDereferenceObject(&device->Header);
}
@@ -228,7 +226,6 @@ __declspec(dllexport) DEVICE_OBJECT* IoAttachDeviceToDeviceStack(DEVICE_OBJECT*
return top;
}
// Implements the detach Device operation.
__declspec(dllexport) void IoDetachDevice(DEVICE_OBJECT* source) {
if (!source || !source->LowerDevice) return;
@@ -258,7 +255,6 @@ __declspec(dllexport) uint8_t IoGetDeviceStackSize(DEVICE_OBJECT* device) {
return count ? count : 1;
}
// Implements the forward Irp To Lower operation.
__declspec(dllexport) KSTATUS IoForwardIrpToLower(DEVICE_OBJECT* device, IRP* irp) {
if (!device || !irp || !device->LowerDevice)
return NTLSTATUS_NOT_SUPPORTED;
@@ -373,7 +369,6 @@ static void IoDiskStatsNoteWrite(uint8_t driveIndex, uint32_t count) {
KeReleaseSpinlock(&state->Lock, flags);
}
// Implements the notify Disk Change operation.
static void IoNotifyDiskChange(uint8_t driveIndex, DEVICE_OBJECT* device, IO_DEVICE_CHANGE change) {
for (uint32_t i = 0; i < gDiskChangeCallbackCount; i++) {
IO_DISK_CHANGE_CALLBACK_ENTRY* entry = &gDiskChangeCallbacks[i];
@@ -429,7 +424,7 @@ __declspec(dllexport) KSTATUS IoRegisterDiskDevice(uint8_t driveIndex,
return NTLSTATUS_SUCCESS;
}
// Implements the notify Disk Surprise Removed operation.
// Invalidates mounted partitions when a disk disappears unexpectedly.
__declspec(dllexport) KSTATUS IoNotifyDiskSurpriseRemoved(uint8_t driveIndex) {
if (driveIndex >= MAX_DISK_DEVICES)
return NTLSTATUS_INVALID_PARAMETER;
@@ -442,29 +437,32 @@ __declspec(dllexport) KSTATUS IoNotifyDiskSurpriseRemoved(uint8_t driveIndex) {
return NTLSTATUS_SUCCESS;
}
// Implements the unregister Disk Device operation.
// Releases volume consumers before the backing device completes orderly teardown.
__declspec(dllexport) KSTATUS IoUnregisterDiskDevice(uint8_t driveIndex) {
if (driveIndex >= MAX_DISK_DEVICES)
return NTLSTATUS_INVALID_PARAMETER;
DEVICE_OBJECT* dev = gDiskDevices[driveIndex];
if (!dev) return NTLSTATUS_NOT_FOUND;
if (dev->PnpState != DevicePnpSurpriseRemoved) {
bool surpriseRemoved = dev->PnpState == DevicePnpSurpriseRemoved;
if (!surpriseRemoved) {
IoNotifyDiskChange(driveIndex, dev, IoDeviceQueryRemove);
KSTATUS queryStatus = IoSendPnpIrpSync(dev, IRP_MN_QUERY_REMOVE_DEVICE);
if (!KSUCCESS(queryStatus) && queryStatus != NTLSTATUS_NOT_SUPPORTED)
if (!KSUCCESS(queryStatus) && queryStatus != NTLSTATUS_NOT_SUPPORTED) {
(void)IoSendPnpIrpSync(dev, IRP_MN_CANCEL_REMOVE_DEVICE);
return queryStatus;
}
dev->PnpState = DevicePnpSurpriseRemoved;
IoNotifyDiskChange(driveIndex, dev, IoDeviceSurpriseRemoved);
(void)IoSendPnpIrpSync(dev, IRP_MN_SURPRISE_REMOVAL);
// Notify volume owners while the backing disk can still service teardown I/O.
IoNotifyDiskChange(driveIndex, dev, IoDeviceRemoved);
}
dev->PnpState = DevicePnpRemovePending;
(void)IoSendPnpIrpSync(dev, IRP_MN_REMOVE_DEVICE);
gDiskDevices[driveIndex] = (DEVICE_OBJECT*)0;
IoNotifyDiskChange(driveIndex, dev, IoDeviceRemoved);
if (surpriseRemoved)
IoNotifyDiskChange(driveIndex, dev, IoDeviceRemoved);
IoDereferenceDeviceObject(dev);
return NTLSTATUS_SUCCESS;
}
@@ -526,19 +524,16 @@ __declspec(dllexport) DEVICE_OBJECT* IoGetDiskDevice(uint8_t driveIndex) {
return gDiskDevices[driveIndex];
}
// Implements the reference Disk Device operation.
__declspec(dllexport) DEVICE_OBJECT* IoReferenceDiskDevice(uint8_t driveIndex) {
DEVICE_OBJECT* dev = IoGetDiskDevice(driveIndex);
if (dev) IoReferenceDeviceObject(dev);
return dev;
}
// Implements the disk Device Present operation.
__declspec(dllexport) bool IoDiskDevicePresent(uint8_t driveIndex) {
return IoGetDiskDevice(driveIndex) != (DEVICE_OBJECT*)0;
}
// Implements the disk Sector Count operation.
__declspec(dllexport) uint64_t IoDiskSectorCount(uint8_t driveIndex) {
DEVICE_OBJECT* dev = IoGetDiskDevice(driveIndex);
return dev ? dev->u.Disk.SectorCount : 0;