From 546efd37d0d9e6631a5d5070fddc339db3b27a72 Mon Sep 17 00:00:00 2001
From: Alex <enderice2@users.noreply.github.com>
Date: Mon, 6 Mar 2023 03:33:34 +0200
Subject: [PATCH] Added new kernel param

---
 Core/Interrupts/IntManager.cpp |  2 +-
 KConfig.cpp                    | 18 ++++++++++++++++--
 include/kconfig.hpp            |  1 +
 3 files changed, 18 insertions(+), 3 deletions(-)

diff --git a/Core/Interrupts/IntManager.cpp b/Core/Interrupts/IntManager.cpp
index 8e10279..8bbd188 100644
--- a/Core/Interrupts/IntManager.cpp
+++ b/Core/Interrupts/IntManager.cpp
@@ -74,7 +74,7 @@ namespace Interrupts
         {
             // TODO: This function is called by SMP too. Do not initialize timers that doesn't support multiple cores.
             apic[Core] = new APIC::APIC(Core);
-            if (Core == 0) // Redirect IRQs to the BSP
+            if (Core == Config.IOAPICInterruptCore) // Redirect IRQs to the specified core.
                 ((APIC::APIC *)apic[Core])->RedirectIRQs(Core);
         }
         else
diff --git a/KConfig.cpp b/KConfig.cpp
index 1a9927f..0082208 100644
--- a/KConfig.cpp
+++ b/KConfig.cpp
@@ -36,6 +36,12 @@ static struct cag_option ConfigOptions[] = {
      .value_name = "VALUE",
      .description = "Number of cores to use (0 = all; 1 is the first code, not 0)"},
 
+    {.identifier = 'p',
+     .access_letters = "pP",
+     .access_name = "ioapicirq",
+     .value_name = "VALUE",
+     .description = "Which core will be used for I/O APIC interrupts"},
+
     {.identifier = 't',
      .access_letters = "tT",
      .access_name = "tasking",
@@ -77,11 +83,12 @@ KernelConfig ParseConfig(char *Config)
     int argc = 0;
     char **argv = nullptr;
 
-    struct KernelConfig config = {Memory::MemoryAllocatorType::Pages,
+    struct KernelConfig config = {Memory::MemoryAllocatorType::XallocV1,
                                   0,
                                   {'/', 's', 'y', 's', 't', 'e', 'm', '/', 'd', 'r', 'i', 'v', 'e', 'r', 's', '\0'},
                                   {'/', 's', 'y', 's', 't', 'e', 'm', '/', 'i', 'n', 'i', 't', '\0'},
-                                  false,
+                                  true,
+                                  0,
                                   0,
                                   false};
 
@@ -320,6 +327,13 @@ ParseSuccess:
             config.Cores = atoi(value);
             break;
         }
+        case 'p':
+        {
+            value = cag_option_get_value(&context);
+            KPrint("\eAAFFAARedirecting I/O APIC interrupts to %s%s", atoi(value) ? "core " : "", atoi(value) ? value : "BSP");
+            config.IOAPICInterruptCore = atoi(value);
+            break;
+        }
         case 't':
         {
             value = cag_option_get_value(&context);
diff --git a/include/kconfig.hpp b/include/kconfig.hpp
index cca7375..e78c222 100644
--- a/include/kconfig.hpp
+++ b/include/kconfig.hpp
@@ -12,6 +12,7 @@ struct KernelConfig
     char InitPath[256];
     bool InterruptsOnCrash;
     int Cores;
+    int IOAPICInterruptCore;
     bool UnlockDeadLock;
 };