Correcting dynamic paging

Makefile

@@ -29,7 +29,7 @@
 
 # Debug
 mode ?= debug
-ram ?= 8G
+ram ?= 4G
 
 # Programs
 ASM=nasm
@@ -203,7 +203,7 @@ $(KOBJDIR)/%.o: %.c | $(KOBJDIR)
 	@echo ${CL2}[$@] ${CL}Compiled.${CL3}
 
 test: all
-	@qemu-system-x86_64 -cpu core2duo -soundhw pcspk -rtc base=localtime -m $(ram) -hda $(BUILDDIR)/bin/disk.img \
+	@qemu-system-x86_64 -cpu core2duo -soundhw pcspk -s -rtc base=localtime -m $(ram) -hda $(BUILDDIR)/bin/disk.img \
 	 -d cpu_reset,guest_errors,pcall,int 2> $(BUILDDIR)/qemu.log &
 
 test32: all

boot/loader/mem/management.inc

@@ -23,7 +23,7 @@
 ;   along with OS/K.  If not, see <https://www.gnu.org/licenses/>.             ;
 ;=----------------------------------------------------------------------------=;
 
-%define MAX_MEMORY 4 ; GiB
+%define MAX_MEMORY 1 ; GiB
 
 [BITS 32]
 [section .text]

kaleid/kernel/init/init.c

@@ -48,8 +48,8 @@ noreturn void BtStartKern(multiboot_info_t *mbInfo, uint mbMagic, void *codeSeg)
 
     // Memory
     MmInitMemoryMap();
-    MmInitHeap();
     MmInitPaging();
+    MmInitHeap();
 
     // Interrupts launching
     KeSetupIDT();

kaleid/kernel/mm/paging.c

@@ -33,7 +33,7 @@ enum
     MF_NX           = 1 << 31
 };
 
-#define RAM_MAX 16
+#define RAM_MAX 32
 #define NB_4K 150
                 // * 2 MB
 
@@ -54,56 +54,55 @@ volatile ulong MmStackGuards[2] = { 0 };
 void MmInitPaging(void)
 {
     extern MemoryMap_t memoryMap;
-    uint phRamSize = memoryMap.freeRamSize + memoryMap.nonfreeRamSize;
+    ulong phRamSize = memoryMap.freeRamSize + memoryMap.nonfreeRamSize;
 
     memzero((void *)&MmPML4[0], sizeof(MmPML4));
     memzero((void *)&MmPDP[0], sizeof(MmPDP));
     memzero((void *)&MmPD[0], sizeof(MmPD));
     memzero((void *)&MmPT[0], sizeof(MmPT));
 
-    for (int i = 0; i < 512 *  NB_4K; i++) {
+    for (volatile ulong i = 0; i < 512 *  NB_4K; i++) {
         // STACK GUARD PAGE
-        if ((ulong)i*4096 == (ulong)BtLoaderInfo.stackEndAddr) {
-            MmPT[i] = ((ulong)i * 4096);
+        if ((ulong)(i*4096) == (ulong)BtLoaderInfo.stackEndAddr) {
+            MmPT[i] = ((ulong)(i*4096));
             MmStackGuards[0] = i;
             continue;
         }
 
         // ENOMEM like
-        if ((ulong)i*4096 > (ulong)phRamSize) {
-            MmPT[i] = ((ulong)i * 4096) | MF_READWRITE;// | MF_NX;
-            continue;
+        if ((ulong)(i*4096) > (ulong)phRamSize) {
+            break;
         }
 
         // STACK GARD PAGE
-        if ((ulong)i*4096 == (ulong)BtLoaderInfo.kernelEndAddr) {
-            MmPT[i] = ((ulong)i * 4096);
+        if ((ulong)(i*4096) == (ulong)BtLoaderInfo.kernelEndAddr) {
+            MmPT[i] = ((ulong)(i*4096));
             MmStackGuards[1] = i;
             continue;
         }
 
-        MmPT[i] = ((ulong)i * 4096) | MF_PRESENT | MF_READWRITE;
+        MmPT[i] = ((ulong)(i*4096)) | MF_PRESENT | MF_READWRITE;
     }
 
-    for (int i = 0; i <  NB_4K; i++) {
+    for (volatile ulong i = 0; i <  NB_4K; i++) {
         MmPD[i] = (ulong)(&MmPT[i*512])| MF_PRESENT | MF_READWRITE;
     }
 
-    for (int i =  NB_4K; i < 512 * RAM_MAX; i++) {
+    for (volatile ulong i =  NB_4K; i < 512 * RAM_MAX; i++) {
         // ENOMEM like
-        if ((ulong)i* 2048 * 1024 > (ulong)phRamSize) {
-            MmPD[i] = ((ulong)i * 2048 * 1024) | MF_READWRITE;// | MF_NX;
-            continue;
+        if ((ulong)(i* 2048 * 1024) > (ulong)phRamSize) {
+            break;
         }
 
-        MmPD[i] = ((ulong)i * 2048 * 1024) | MF_PRESENT | MF_READWRITE | MF_HUGE;
+        MmPD[i] = 0;
+        MmPD[i] = ((ulong)(i* 2048 * 1024)) | MF_PRESENT | MF_READWRITE | MF_HUGE;
     }
 
-    for (int i = 0; i < RAM_MAX; i++) {
+    for (volatile int i = 0; i < RAM_MAX; i++) {
         MmPDP[i] = (ulong)(&MmPD[i*512])| MF_PRESENT | MF_READWRITE;
     }
 
     MmPML4[0] = (ulong)(&MmPDP[0])| MF_PRESENT | MF_READWRITE;
 
-    //MmLoadPML4((void *)MmPML4);
+    MmLoadPML4((void *)MmPML4);
 }

kaleid/kernel/sh/shcmds.c

@@ -224,13 +224,31 @@ error_t CmdDie(int argc, char **argv, char *cmdline)
 
 error_t CmdPF(int argc, char **argv, char *cmdline)
 {
-    if (argc != 2)
-        return EINVAL;
+    /* if (argc != 2) */
+    /*     return EINVAL; */
 
-    ulong address = atoul(argv[1]);
-    KernLog("print: %s, %d\n", argv[1], address);
+    /* ulong address = atoul(argv[1]); */
+    /* KernLog("print: %s, %d\n", argv[1], address); */
 
-    *((char*)address) += 1;
+    /* *((char*)address) += 1; */
+
+    *((char*)(1*GB)) += 1;
+    KernLog("1GB ");
+    *((char*)(2*GB)) += 1;
+    KernLog("2GB ");
+    *((char*)(3*GB)) += 1;
+    KernLog("3GB ");
+    *((char*)(4*GB)) += 1;
+    KernLog("4GB ");
+
+    return EOK;
+}
+
+void MmInitPaging(void);
+
+error_t CmdReloadPage(int argc, char **argv, char *cmdline)
+{
+    MmInitPaging();
     return EOK;
 }
 
@@ -251,6 +269,7 @@ Command_t cmdtable[] =
     { "die",        CmdDie,             "Die painfully" },
     { "exit",       CmdQuit,            "Initiate shutdown" },
     { "help",       CmdHelp,            "Show this message" },
+    { "rpag",       CmdReloadPage,            "Reload the pages directory" },
     { "march",      CmdStarWars,        "Play the Imperial March"},
     { "mmap",       CmdMemMap,          "Show memory map" },
     { "musage",     CmdMemUsage,        "Show memory statistics" },