diff -ru redhat/BUILD/linux/arch/ia64/kernel/setup.c lfoo/arch/ia64/kernel/setup.c
--- redhat/BUILD/linux/arch/ia64/kernel/setup.c	Tue May 30 16:32:59 2000
+++ lfoo/arch/ia64/kernel/setup.c	Tue May 30 16:36:18 2000
@@ -26,6 +26,9 @@
 #include <linux/string.h>
 #include <linux/threads.h>
 #include <linux/console.h>
+#ifdef CONFIG_BLK_DEV_RAM
+#include <linux/blk.h>
+#endif
 
 #include <asm/acpi-ext.h>
 #include <asm/page.h>
@@ -125,11 +128,24 @@
 	 * change APIs, they'd do things for the better.  Grumble...
 	 */
 	bootmap_start = PAGE_ALIGN(__pa(&_end));
+	if (ia64_boot_param.initrd_size) {
+		bootmap_start = PAGE_ALIGN(bootmap_start+ia64_boot_param.initrd_size);
+	}
 	bootmap_size = init_bootmem(bootmap_start >> PAGE_SHIFT, max_pfn);
 
 	efi_memmap_walk(free_available_memory, 0);
 
 	reserve_bootmem(bootmap_start, bootmap_size);
+#ifdef CONFIG_BLK_DEV_INITRD
+	initrd_start = ia64_boot_param.initrd_start;
+	if (initrd_start) {
+		initrd_end = initrd_start+ia64_boot_param.initrd_size;
+		printk("Initial ramdisk at: 0x%p (%lu bytes)\n",
+		       (void *) initrd_start, ia64_boot_param.initrd_size);
+		reserve_bootmem(virt_to_phys(initrd_start),
+		 		ia64_boot_param.initrd_size);
+	}
+#endif
 #if 0
 	/* XXX fix me */
 	init_mm.start_code = (unsigned long) &_stext;
diff -ru redhat/BUILD/linux/arch/ia64/mm/init.c lfoo/arch/ia64/mm/init.c
--- redhat/BUILD/linux/arch/ia64/mm/init.c	Tue May 30 16:32:59 2000
+++ lfoo/arch/ia64/mm/init.c	Wed May 24 22:05:11 2000
@@ -179,6 +180,19 @@
 	}
 	printk ("Freeing unused kernel memory: %ldkB freed\n",
 		(&__init_end - &__init_begin) >> 10);
+}
+
+void
+free_initrd_mem(unsigned long start, unsigned long end)
+{
+	if (start < end)
+	  	printk ("Freeing initrd memory: %ldk freed\n", (end - start) >> 10);
+	for (; start < end; start += PAGE_SIZE) {
+		clear_bit(PG_reserved, &mem_map[MAP_NR(start)].flags);
+		set_page_count(&mem_map[MAP_NR(start)], 1);
+		free_page(start);
+		++totalram_pages;
+	}
 }
 
 void
diff -ru redhat/BUILD/linux/include/asm-ia64/system.h lfoo/include/asm-ia64/system.h
--- redhat/BUILD/linux/include/asm-ia64/system.h	Tue May 30 16:33:01 2000
+++ lfoo/include/asm-ia64/system.h	Thu May 25 16:47:59 2000
@@ -54,6 +54,8 @@
 	__u16 num_pci_vectors;	/* number of ACPI derived PCI IRQ's*/
 	__u64 pci_vectors;	/* physical address of PCI data (pci_vector_struct)*/
 	__u64 fpswa;		/* physical address of the the fpswa interface */
+	__u64 initrd_start;
+	__u64 initrd_size;
 } ia64_boot_param;
 
 extern inline void