move keyboard and mouse out of HAL into a standalone ps2.sys driver, implement usb stack with xhci controller discovery, hid keyboard/mouse, and bulk-only mass storage, add pci msi support with capability chain walking and software irq vector allocation (slots 16-23), rewrite user virtual memory as a USER_VA_REGION descriptor arena with per-process ownership tracking and guard page support, replacing the old bump allocator and top-down image region, add MmCreateUserRegion/MmDestroyAllUserRegions so process teardown reclaims all user va in one pass, allocate a pool-backed shadow framebuffer in hal_screen to fix cursor tearing and scroll corruption, reserve ap trampoline page below 1mb in uefi bootloader before boot services exit, rewrite memset/memcpy/memmove/memcmp with __stosq/__movsq intrinsics, promote driver flag literals to macros and add multi-tu STANDALONE_DRIVERS table to build.c, split rtl8139/rtl816x into header+source, rename KbReadScancode to KbReadKey, improve page fault output with MmDebugDescribeAddress and user region dump, fix %p to %016llX throughout.
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@@ -2,6 +2,8 @@
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#include <stdint.h>
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#include <string.h>
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#include <intrin.h>
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#pragma intrinsic(_disable)
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#pragma intrinsic(_enable)
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#include <ntlite/boot_info.h>
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#include <kernel/mm_phys.h>
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#include <kernel/mm_virt.h>
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@@ -22,6 +24,7 @@
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#include <kernel/io_file.h>
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#include <kernel/ke_selftest.h>
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#include <kernel/ke_smp.h>
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#include <kernel/ke_input.h>
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#include <common/ini_parser.h>
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typedef struct {
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@@ -31,52 +34,9 @@ typedef struct {
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typedef KSTATUS (*DRIVER_ENTRY_FN)(const HAL_API *);
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// HAL pointer cached at boot so kernel threads can reach it without
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// threading a parameter through every call chain.
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// HAL pointer cached at boot for subsystems that still need platform services.
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static const HAL_API* gKmainHal;
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// Kernel-owned DPC wrappers for HAL input devices. The HAL keeps the tiny
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// hardware-specific ISR fast and exposes a bottom-half entry point; the kernel
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// owns the actual DPC objects and scheduling policy.
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static KDPC gKeyboardDpc;
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static KDPC gMouseDpc;
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static void KeyboardDpcRoutine(KDPC* dpc, void* context, void* systemArgument1, void* systemArgument2) {
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(void)dpc;
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(void)context;
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(void)systemArgument1;
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(void)systemArgument2;
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if (gKmainHal && gKmainHal->Keyboard.Dpc)
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gKmainHal->Keyboard.Dpc();
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}
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static void KiMouseDpcRoutine(KDPC* dpc, void* context, void* systemArgument1, void* systemArgument2) {
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(void)dpc;
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(void)context;
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(void)systemArgument1;
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(void)systemArgument2;
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if (gKmainHal && gKmainHal->Mouse.Dpc)
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gKmainHal->Mouse.Dpc();
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}
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static void KeyboardIrqWrapper(void) {
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if (gKmainHal && gKmainHal->Keyboard.Isr)
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gKmainHal->Keyboard.Isr();
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if (gKmainHal && gKmainHal->Keyboard.Dpc)
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KeInsertQueueDpc(&gKeyboardDpc, (void*)0, (void*)0);
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}
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static void KiMouseIrqWrapper(void) {
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if (gKmainHal && gKmainHal->Mouse.Isr)
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gKmainHal->Mouse.Isr();
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if (gKmainHal && gKmainHal->Mouse.Dpc)
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KeInsertQueueDpc(&gMouseDpc, (void*)0, (void*)0);
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}
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static int KiPageInBootloaderRegion(const BOOT_INFO* bootInfo, PHYSICAL_ADDRESS page) {
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for (uint32_t i = 0; i < bootInfo->MemoryMap.RegionCount; i++) {
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const MEMORY_REGION* r = &bootInfo->MemoryMap.Regions[i];
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@@ -288,17 +248,14 @@ static PROCESS* KiLaunchUserProcess(const char* filePath, const char* args) {
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// Read the executable file into a raw buffer.
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s = IoOpenFile(SysSvFromCstr(filePath), &f);
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DbgPrint("KiLaunchUserProcess: IoOpenFile: %d\n", s);
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if (s != STATUS_SUCCESS) {
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DbgPrint("Failed to load file: \"%s\"!\n", filePath);
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return 0;
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}
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uint64_t size = IoGetFileSize(f);
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DbgPrint("KiLaunchUserProcess: IoGetFileSize: %llu\n", size);
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void* mem = MmAllocatePool(size);
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DbgPrint("KiLaunchUserProcess: MmAllocatePool: 0x%llX\n", mem);
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if (!mem) {
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IoCloseFile(f);
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return 0;
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@@ -306,7 +263,6 @@ static PROCESS* KiLaunchUserProcess(const char* filePath, const char* args) {
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size_t got = 0;
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s = IoReadFile(f, mem, size, &got);
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DbgPrint("KiLaunchUserProcess: IoReadFile: %d\n", s);
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IoCloseFile(f);
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if (!KSUCCESS(s)) {
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MmFreePool(mem);
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@@ -338,7 +294,7 @@ static PROCESS* KiLaunchUserProcess(const char* filePath, const char* args) {
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// Parse the raw PE file and map it into executable memory.
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uintptr_t imageBase = 0;
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s = LdrLoadImage(mem, size, &imageBase, true);
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s = LdrLoadImageForProcess(proc, mem, size, &imageBase);
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MmFreePool(mem);
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if (!KSUCCESS(s)) {
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DbgPrint("KiLaunchUserProcess: LdrLoadImage failed with status: %d\n", s);
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@@ -349,16 +305,14 @@ static PROCESS* KiLaunchUserProcess(const char* filePath, const char* args) {
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s = LdrResolveImportsForProcess(proc, imageBase);
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if (!KSUCCESS(s)) {
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DbgPrint("KiLaunchUserProcess: Failed to resolve EXE imports for %s (status %d)\n", filePath, s);
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MmFreeUserImage((void*)imageBase, LdrGetImageSize(imageBase));
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ObDereferenceObject(&proc->Header);
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return 0;
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}
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proc->ImageBase = imageBase;
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proc->ImageSize = LdrGetImageSize(imageBase);
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proc->ImageSize = LdrGetMappedImageSize(proc, imageBase);
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uintptr_t entryPoint = LdrGetEntryPoint(imageBase);
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DbgPrint("KiLaunchUserProcess: PE Image mapped! Base 0x%llx, Entry 0x%llX\n", imageBase, entryPoint);
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// Create the main thread last. KeCreateThread queues it before returning.
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s = KeCreateThread(proc, (uintptr_t)entryPoint, 0, PriorityNormal, &thread);
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@@ -366,7 +320,6 @@ static PROCESS* KiLaunchUserProcess(const char* filePath, const char* args) {
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DbgPrint("KiLaunchUserProcess: Failed to create thread. Status: %d\n", s);
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proc->ImageBase = 0;
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proc->ImageSize = 0;
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MmFreeUserImage((void*)imageBase, LdrGetImageSize(imageBase));
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ObDereferenceObject(&proc->Header);
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return 0;
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}
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@@ -388,19 +341,6 @@ void SystemInitThread(void* arg) {
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KiResolveSystemImports(args->bootInfo);
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KiReclaimBootloaderMemory(args->bootInfo);
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args->hal->Screen.Clear(0x000000);
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// Print memory status now that the system is fully alive
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DbgPrint(
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"Memory Status:\n"
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" -> Free (PMM): %.2f MB\n"
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" -> Kernel Pool: %.2f MB\n"
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" -> User Heap: %.2f MB\n",
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(float)MmFreeFrameCount() * PAGE_SIZE / (1024.0f * 1024.0f),
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(float)MmGetKernelPoolUsage() / (1024.0f * 1024.0f),
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(float)MmGetUserHeapUsage() / (1024.0f * 1024.0f)
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);
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if (args->bootInfo->Debug & 2)
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KiRunKernelSelfTests(args->hal);
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@@ -464,7 +404,8 @@ extern void KernelMain(BOOT_INFO* bootInfo) {
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.FramebufferHeight = bootInfo->FramebufferHeight,
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.FramebufferStride = bootInfo->FramebufferStride,
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.RsdpPhysical = bootInfo->RsdpPhysical,
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.Debug = bootInfo->Debug
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.Debug = bootInfo->Debug,
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.AllocatePool = MmAllocatePool
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};
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KSTATUS s = HalInitialize(&halParams);
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@@ -482,6 +423,7 @@ extern void KernelMain(BOOT_INFO* bootInfo) {
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// the kernel owns KCPU records, per-CPU stacks, GDT/TSS/IDT state, and the
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// AP park loop. External device IRQs remain routed to the BSP during this
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// step; APs only become runnable after scheduler admission below.
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KeSetApplicationProcessorTrampoline((uint64_t)bootInfo->ApTrampolinePhys);
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KSTATUS smpStatus = KeStartApplicationProcessors();
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if (!KSUCCESS(smpStatus)) {
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KePanic(KE_PANIC_CODE_INIT, "SMP: failed to start application processors, status=0x%x\n", smpStatus);
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@@ -490,14 +432,9 @@ extern void KernelMain(BOOT_INFO* bootInfo) {
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KeIrqInitialize(hal);
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KeInitializeDpcSystem();
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KeInitializeDpc(&gKeyboardDpc, KeyboardDpcRoutine, (void*)0);
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KeInitializeDpc(&gMouseDpc, KiMouseDpcRoutine, (void*)0);
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KeInputInitialize(hal);
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KeIrqRegister(hal->Timer.IrqNumber, hal->Timer.Isr);
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KeIrqRegister(hal->Keyboard.IrqNumber,
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hal->Keyboard.Dpc ? KeyboardIrqWrapper : hal->Keyboard.Isr);
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KeIrqRegister(hal->Mouse.IrqNumber,
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hal->Mouse.Dpc ? KiMouseIrqWrapper : hal->Mouse.Isr);
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HalRegisterScheduler(KeSchedulerTick);
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