Initial commit

2023-02-26 21:12:51 +01:00
commit d2ec37332f
69 changed files with 58831 additions and 0 deletions
--- a/code/lapic_mmio_alloc.cpp
+++ b/code/lapic_mmio_alloc.cpp
@ -0,0 +1,9 @@
+uint32_t allocateMMIORegion() {
+    // The apicBaseAddress is obtained via ACPI
+    auto &memoryService = System::getService<MemoryService>();
+    void *virtAddressPtr = memoryService.mapIO(apicBaseAddress, Util::PAGESIZE);
+
+    // Account for possible misalignment, as mapIO returns a page-aligned pointer
+    uint32_t pageOffset = apicBaseAddress % Util::PAGESIZE;
+    return reinterpret_cast<uint32_t>(virtAddressPtr) + pageOffset;
+}