feat: kernel: startup sequence fix, and new mgmt.hefs manual.

wip: LaunchKit for the `ne_launch` program.

Signed-off-by: Amlal El Mahrouss <amlal@nekernel.org>

3 files changed, 15 insertions, 43 deletions

diff --git a/dev/kernel/HALKit/AMD64/HalApplicationProcessor.cc b/dev/kernel/HALKit/AMD64/HalApplicationProcessor.cc
index df5386e4..e3e08830 100644
--- a/dev/kernel/HALKit/AMD64/HalApplicationProcessor.cc
+++ b/dev/kernel/HALKit/AMD64/HalApplicationProcessor.cc
@@ -88,7 +88,7 @@ struct LAPIC final {
 /// @param target
 /// @return
 /***********************************************************************************/
-Void hal_send_ipi_msg(UInt32 target, UInt32 apic_id, UInt8 vector) {
+EXTERN_C Void hal_send_ipi_msg(UInt32 target, UInt32 apic_id, UInt8 vector) {
   Kernel::ke_dma_write<UInt32>(target, APIC_ICR_HIGH, apic_id << 24);
   Kernel::ke_dma_write<UInt32>(target, APIC_ICR_LOW, 0x00000600 | 0x00004000 | 0x00000000 | vector);
 
@@ -200,10 +200,7 @@ Void mp_init_cores(VoidPtr vendor_ptr) noexcept {
       UInt8 type   = *entry_ptr;
       UInt8 length = *(entry_ptr + 1);
 
-      // Avoid infinite loop on bad APIC tables.
-      if (length < 2) break;
-
-      if (type == 0) {
+      if (type == 0 && length == sizeof(struct LAPIC)) {
         volatile LAPIC* entry_struct = (volatile LAPIC*) entry_ptr;
 
         if (entry_struct->Flags & 0x1) {
@@ -212,15 +209,15 @@ Void mp_init_cores(VoidPtr vendor_ptr) noexcept {
 
           ++kSMPCount;
 
-          kout << "Kind: LAPIC: ON\r";
+          kout << "AP: kind: LAPIC: ON.\r";
 
           // 0x7c00, as recommended by the Intel SDM.
           hal_send_ipi_msg(kApicBaseAddress, entry_struct->ProcessorID, 0x7c);
         } else {
-          kout << "Kind: LAPIC: OFF\r";
+          kout << "AP: kind: LAPIC: OFF.\r";
         }
       } else {
-        kout << "Kind: UNKNOWN: OFF\r";
+        kout << "AP: kind: UNKNOWN: OFF.\r";
       }
 
       entry_ptr += length;
diff --git a/dev/kernel/HALKit/AMD64/HalKernelMain.cc b/dev/kernel/HALKit/AMD64/HalKernelMain.cc
index cb5d4af8..95214353 100644
--- a/dev/kernel/HALKit/AMD64/HalKernelMain.cc
+++ b/dev/kernel/HALKit/AMD64/HalKernelMain.cc
@@ -32,8 +32,6 @@ EXTERN_C Int32 hal_init_platform(Kernel::HEL::BootInfoHeader* handover_hdr) {
 
   HAL::rt_sti();
 
-  kHandoverHeader = handover_hdr;
-
   FB::fb_clear_video();
 
   fw_init_efi((EfiSystemTable*) handover_hdr->f_FirmwareCustomTables[1]);
@@ -41,8 +39,9 @@ EXTERN_C Int32 hal_init_platform(Kernel::HEL::BootInfoHeader* handover_hdr) {
   Boot::ExitBootServices(handover_hdr->f_HardwareTables.f_ImageKey,
                          handover_hdr->f_HardwareTables.f_ImageHandle);
 
-  kBitMapCursor = 0UL;
-  kKernelVM     = kHandoverHeader->f_PageStart;
+  kHandoverHeader = handover_hdr;
+
+  kKernelVM = kHandoverHeader->f_PageStart;
 
   if (!kKernelVM) {
     MUST_PASS(kKernelVM);
@@ -55,6 +54,7 @@ EXTERN_C Int32 hal_init_platform(Kernel::HEL::BootInfoHeader* handover_hdr) {
   /*     INITIALIZE BIT MAP.              */
   /************************************** */
 
+  kBitMapCursor    = 0UL;
   kKernelBitMpSize = kHandoverHeader->f_BitMapSize;
   kKernelBitMpStart =
       reinterpret_cast<VoidPtr>(reinterpret_cast<UIntPtr>(kHandoverHeader->f_BitMapStart));
@@ -133,20 +133,14 @@ EXTERN_C Int32 hal_init_platform(Kernel::HEL::BootInfoHeader* handover_hdr) {
   return kEfiFail;
 }
 
-EXTERN_C Kernel::Void hal_real_init(Kernel::Void) noexcept {
+EXTERN_C Kernel::Void hal_real_init(Kernel::Void) {
   using namespace Kernel;
 
-  for (SizeT index = 0UL; index < HardwareThreadScheduler::The().Capacity(); ++index) {
-    HardwareThreadScheduler::The()[index].Leak()->Kind() = ThreadKind::kAPStandard;
-    HardwareThreadScheduler::The()[index].Leak()->ID()   = index;
-    HardwareThreadScheduler::The()[index].Leak()->Busy(NO);
-  }
+  HAL::Register64 idt_reg;
+  idt_reg.Base = reinterpret_cast<UIntPtr>(kInterruptVectorTable);
 
-  for (SizeT index = 0UL; index < UserProcessScheduler::The().TheCurrentTeam().AsArray().Count();
-       ++index) {
-    UserProcessScheduler::The().TheCurrentTeam().AsArray()[index].Status =
-        ProcessStatusKind::kInvalid;
-  }
+  HAL::IDTLoader idt_loader;
+  idt_loader.Load(idt_reg);
 
   HAL::mp_init_cores(kHandoverHeader->f_HardwareTables.f_VendorPtr);
 
@@ -158,13 +152,6 @@ EXTERN_C Kernel::Void hal_real_init(Kernel::Void) noexcept {
   NeFS::fs_init_nefs();
 #endif
 
-  HAL::Register64 idt_reg;
-  idt_reg.Base = reinterpret_cast<UIntPtr>(kInterruptVectorTable);
-
-  HAL::IDTLoader idt_loader;
-
-  idt_loader.Load(idt_reg);
-
   while (YES)
     ;
 }
diff --git a/dev/kernel/HALKit/ARM64/HalKernelMain.cc b/dev/kernel/HALKit/ARM64/HalKernelMain.cc
index 096df49e..29541d48 100644
--- a/dev/kernel/HALKit/ARM64/HalKernelMain.cc
+++ b/dev/kernel/HALKit/ARM64/HalKernelMain.cc
@@ -37,8 +37,6 @@ EXTERN_C void hal_init_platform(Kernel::HEL::BootInfoHeader* handover_hdr) {
 
   FB::fb_clear_video();
 
-  kBitMapCursor = 0UL;
-
 #ifdef __NE_ARM64_EFI__
   fw_init_efi((EfiSystemTable*) handover_hdr->f_FirmwareCustomTables[1]);
 
@@ -50,23 +48,13 @@ EXTERN_C void hal_init_platform(Kernel::HEL::BootInfoHeader* handover_hdr) {
   /*     INITIALIZE BIT MAP.              */
   /************************************** */
 
+  kBitMapCursor = 0UL;
   kKernelBitMpSize  = kHandoverHeader->f_BitMapSize;
   kKernelBitMpStart = reinterpret_cast<Kernel::VoidPtr>(
       reinterpret_cast<Kernel::UIntPtr>(kHandoverHeader->f_BitMapStart));
 
   /// @note do initialize the interrupts after it.
 
-  for (SizeT index = 0UL; index < HardwareThreadScheduler::The().Capacity(); ++index) {
-    HardwareThreadScheduler::The()[index].Leak()->Kind() = ThreadKind::kAPStandard;
-    HardwareThreadScheduler::The()[index].Leak()->Busy(NO);
-  }
-
-  for (SizeT index = 0UL; index < UserProcessScheduler::The().TheCurrentTeam().AsArray().Count();
-       ++index) {
-    UserProcessScheduler::The().TheCurrentTeam().AsArray()[index].Status =
-        ProcessStatusKind::kInvalid;
-  }
-
   Kernel::mp_init_cores();
 
   while (YES)