summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--i386/i386/vm_param.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/i386/i386/vm_param.h b/i386/i386/vm_param.h
index 4974c33..2bcd084 100644
--- a/i386/i386/vm_param.h
+++ b/i386/i386/vm_param.h
@@ -34,7 +34,12 @@
#define VM_MIN_KERNEL_ADDRESS 0xC0000000UL
#define INIT_VM_MIN_KERNEL_ADDRESS VM_MIN_KERNEL_ADDRESS
#else /* MACH_XEN */
+/* This can be changed freely to separate kernel addresses from user addresses
+ * for better trace support in kdb, but make sure that your machine has that
+ * much physical memory for GRUB to be able to map it, and offset the _START
+ * symbol by the same amount. */
#define VM_MIN_KERNEL_ADDRESS 0x00000000UL
+/* This must remain 0 */
#define INIT_VM_MIN_KERNEL_ADDRESS 0x00000000UL
#endif /* MACH_XEN */