Changeset 97905 in vbox for trunk/src/VBox/HostDrivers

Timestamp:

Dec 29, 2022 6:22:23 PM (2 years ago)

Author:

vboxsync

Message:

IPRT,SUPDrv: Dropping RTR0MemExecDonate and associated SUPDrv-linux code, it's not needed since linux started using RTR0MemObjAllocPage for r0 images. bugref:9801

File:

• trunk/src/VBox/HostDrivers/Support/linux/SUPDrv-linux.c (modified) (3 diffs)

trunk/src/VBox/HostDrivers/Support/linux/SUPDrv-linux.c

@@ -175 +175 @@
 #define DEVICE_NAME_USR     "vboxdrvu"
 
-#if (defined(RT_ARCH_AMD64) && RTLNX_VER_MAX(2,6,23)) || defined(VBOX_WITH_TEXT_MODMEM_HACK)
-/**
- * Memory for the executable memory heap (in IPRT).
- */
-# ifdef DEBUG
-#  define EXEC_MEMORY_SIZE   10485760   /* 10 MB */
-# else
-#  define EXEC_MEMORY_SIZE   8388608    /* 8 MB */
-# endif
-extern uint8_t g_abExecMemory[EXEC_MEMORY_SIZE];
-# ifndef VBOX_WITH_TEXT_MODMEM_HACK
-__asm__(".section execmemory, \"awx\", @progbits\n\t"
-        ".align 32\n\t"
-        ".globl g_abExecMemory\n"
-        "g_abExecMemory:\n\t"
-        ".zero " RT_XSTR(EXEC_MEMORY_SIZE) "\n\t"
-        ".type g_abExecMemory, @object\n\t"
-        ".size g_abExecMemory, " RT_XSTR(EXEC_MEMORY_SIZE) "\n\t"
-        ".text\n\t");
-# else
-__asm__(".text\n\t"
-        ".align 4096\n\t"
-        ".globl g_abExecMemory\n"
-        "g_abExecMemory:\n\t"
-        ".zero " RT_XSTR(EXEC_MEMORY_SIZE) "\n\t"
-        ".type g_abExecMemory, @object\n\t"
-        ".size g_abExecMemory, " RT_XSTR(EXEC_MEMORY_SIZE) "\n\t"
-        ".text\n\t");
-# endif
-#endif
-
 /** The file_operations structure. */
 static struct file_operations gFileOpsVBoxDrvSys =
@@ -395 +364 @@
         if (RT_SUCCESS(rc))
         {
-#if (defined(RT_ARCH_AMD64) && RTLNX_VER_MAX(2,6,23)) || defined(VBOX_WITH_TEXT_MODMEM_HACK)
-# ifdef VBOX_WITH_TEXT_MODMEM_HACK
-            set_memory_x(&g_abExecMemory[0], sizeof(g_abExecMemory) / PAGE_SIZE);
-            set_memory_rw(&g_abExecMemory[0], sizeof(g_abExecMemory) / PAGE_SIZE);
-# endif
-            rc = RTR0MemExecDonate(&g_abExecMemory[0], sizeof(g_abExecMemory));
-            printk(KERN_DEBUG "VBoxDrv: dbg - g_abExecMemory=%p\n", (void *)&g_abExecMemory[0]);
-#endif
             Log(("VBoxDrv::ModuleInit\n"));
 
@@ -408 +369 @@
              * Initialize the device extension.
              */
-            if (RT_SUCCESS(rc))
-                rc = supdrvInitDevExt(&g_DevExt, sizeof(SUPDRVSESSION));
+            rc = supdrvInitDevExt(&g_DevExt, sizeof(SUPDRVSESSION));
             if (RT_SUCCESS(rc))
             {