Changeset 27669 in vbox

Timestamp:

Mar 24, 2010 3:04:38 PM (15 years ago)

Author:

vboxsync

Message:

Runtime/r0drv/linux: fixed RTR0MemKernelIsValidAddr() for AMD64

File:

• trunk/src/VBox/Runtime/r0drv/linux/memuserkernel-r0drv-linux.c (modified) (1 diff)

trunk/src/VBox/Runtime/r0drv/linux/memuserkernel-r0drv-linux.c

@@ -76 +76 @@
 
 #elif defined(RT_ARCH_AMD64)
-# ifdef KERNEL_IMAGE_START
-    return (uintptr_t)pv >= KERNEL_IMAGE_START;
+# if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 11)
+    /* Linux 2.6.0 ... 2.6.10 set PAGE_OFFSET to 0x0000010000000000.
+     * Linux 2.6.11 sets PAGE_OFFSET to 0xffff810000000000.
+     * Linux 2.6.33 sets PAGE_OFFSET to 0xffff880000000000. */
+    return (uintptr_t)pv >= PAGE_OFFSET;
 # else
+    /* Not correct (KERNEL_TEXT_START=0xffffffff80000000),
+     * VMALLOC_START (0xffffff0000000000) would be better */
     return (uintptr_t)pv >= KERNEL_TEXT_START;
 # endif