add NTLITE_DRIVE and NTLITE_NTPATH so i can work on my pc and my laptop, fix dynamic driver loading

build.bat

@@ -3,7 +3,7 @@ setlocal enabledelayedexpansion
 
 set ROOT=%~dp0.
 set SRC=%ROOT%\code
-set DEST=G:\
+set DEST=%NTLITE_DRIVE%
 
 if exist "obj" rd /s /q "obj"
 if exist "bin" rd /s /q "bin"

code/kernel/kmain.c

@@ -107,21 +107,19 @@ static void InitializeDrivers(BOOT_INFO* bootInfo, const HAL_API* hal) {
 
         // Load the driver
         size_t len = strlen(runtimeKeys[i]);
-
-        // Assemble the path
-        // "drivers\" is 8 chars; +1 for the NUL terminator already in len.
-        size_t pathLen = 8 + len + 1;   // len already includes the NUL from strlen+1 above
-        char *path = MmAllocatePool(pathLen);
+        char* path = MmAllocatePool(len + 10);
         if (!path) {
-            DbgPrint("InitializeDrivers: OOM building driver path\n");
+            DbgPrint("KernelMain: Failed to allocate memory for driver path. How?\n");
             continue;
         }
+
+        // memcpy manouvers
         memcpy(path, "drivers\\", 8);
-        memcpy(path + 8, runtimeKeys[i], len);   // len includes the NUL
+        memcpy(path + 8, runtimeKeys[i], len + 1);
 
         s = IoOpenFile(path, &f);
         if (s != STATUS_SUCCESS) {
-            DbgPrint("InitializeDrivers: Failed to open runtime driver: %s\n", runtimeKeys[i]);
+            DbgPrint("InitializeDrivers: Failed to open runtime driver: %s (%s)\n", runtimeKeys[i], path);
             continue; // Skip this driver but keep going with others
         }
 

readme.md

@@ -25,12 +25,13 @@ It boots into a shell.
 
 ## how 2 build
 
+* open env variables
+* set `NTLITE_DRIVE` as your thumbdrive (ex. `G:`)
+* set `NTLITE_NTPATH` as your thumbdrive (ex. `\\.\PhysicalDrive7`)
 * open vs x64 build tools
 * cd into this directory
 * `build.bat`
-* open `run.bat`/`rund.bat`/`runa.bat`/`runad.bat`
-* replace `\\.\PhysicalDrive7` with your thumbdrive partition
-* `run.bat`/`rund.bat`/`runa.bat`/`runad.bat`
+* `run.bat`(ide)/`rund.bat`(ide, debug)/`runa.bat`(ahci)/`runad.bat`(ahci, debug)
 * enjoy
 
 ## how it looks when built

run.bat

@@ -1 +1 @@
-@start qemu-system-x86_64 -drive if=pflash,format=raw,readonly=on,file=OVMF\OVMF_CODE_4M.fd -drive if=pflash,format=raw,file=OVMF\OVMF_VARS_4M.fd -drive format=raw,file=\\.\PhysicalDrive7 -serial stdio
+@start qemu-system-x86_64 -drive if=pflash,format=raw,readonly=on,file=OVMF\OVMF_CODE_4M.fd -drive if=pflash,format=raw,file=OVMF\OVMF_VARS_4M.fd -drive format=raw,file=%NTLITE_NTPATH% -serial stdio

runa.bat

@@ -1 +1 @@
-@start qemu-system-x86_64 -drive if=pflash,format=raw,readonly=on,file=OVMF\OVMF_CODE_4M.fd -drive if=pflash,format=raw,file=OVMF\OVMF_VARS_4M_d.fd -device ahci,id=ahci -drive format=raw,file=\\.\PhysicalDrive7,if=none,id=disk0 -device ide-hd,bus=ahci.0,drive=disk0 -serial stdio
+@start qemu-system-x86_64 -drive if=pflash,format=raw,readonly=on,file=OVMF\OVMF_CODE_4M.fd -drive if=pflash,format=raw,file=OVMF\OVMF_VARS_4M_d.fd -device ahci,id=ahci -drive format=raw,file=%NTLITE_NTPATH%,if=none,id=disk0 -device ide-hd,bus=ahci.0,drive=disk0 -serial stdio

runad.bat

@@ -1 +1 @@
-@start qemu-system-x86_64 -drive if=pflash,format=raw,readonly=on,file=OVMF\OVMF_CODE_4M.fd -drive if=pflash,format=raw,file=OVMF\OVMF_VARS_4M_d.fd -device ahci,id=ahci -drive format=raw,file=\\.\PhysicalDrive7,if=none,id=disk0 -device ide-hd,bus=ahci.0,drive=disk0 -m 4G -serial stdio -d in_asm,cpu_reset,int -D qemu.log -no-reboot -no-shutdown
+@start qemu-system-x86_64 -drive if=pflash,format=raw,readonly=on,file=OVMF\OVMF_CODE_4M.fd -drive if=pflash,format=raw,file=OVMF\OVMF_VARS_4M_d.fd -device ahci,id=ahci -drive format=raw,file=%NTLITE_NTPATH%,if=none,id=disk0 -device ide-hd,bus=ahci.0,drive=disk0 -m 4G -serial stdio -d in_asm,cpu_reset,int -D qemu.log -no-reboot -no-shutdown

rund.bat

@@ -1 +1 @@
-@start qemu-system-x86_64 -drive if=pflash,format=raw,readonly=on,file=OVMF\OVMF_CODE_4M.fd -drive if=pflash,format=raw,file=OVMF\OVMF_VARS_4M.fd -drive format=raw,file=\\.\PhysicalDrive7 -m 4G -serial stdio -d in_asm,cpu_reset,int -D qemu.log -no-reboot -no-shutdown
+@start qemu-system-x86_64 -drive if=pflash,format=raw,readonly=on,file=OVMF\OVMF_CODE_4M.fd -drive if=pflash,format=raw,file=OVMF\OVMF_VARS_4M.fd -drive format=raw,file=%NTLITE_NTPATH% -m 4G -serial stdio -d in_asm,cpu_reset,int -D qemu.log -no-reboot -no-shutdown