diff --git a/stand/kboot/arch/aarch64/load_addr.c b/stand/kboot/arch/aarch64/load_addr.c
--- a/stand/kboot/arch/aarch64/load_addr.c
+++ b/stand/kboot/arch/aarch64/load_addr.c
@@ -0,0 +1,154 @@
+/*-
+ * Copyright (c) 2022 Netflix, Inc
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <sys/param.h>
+#include <sys/efi.h>
+#include <machine/metadata.h>
+#include <sys/linker.h>
+#include <fdt_platform.h>
+#include <libfdt.h>
+
+#include "kboot.h"
+#include "bootstrap.h"
+
+/*
+ * Info from dtb about the EFI system
+ */
+vm_paddr_t efi_systbl_phys;
+struct efi_map_header *efi_map_hdr;
+uint32_t efi_map_size;
+vm_paddr_t efi_map_phys_src;	/* From DTB */
+vm_paddr_t efi_map_phys_dst;	/* From our memory map metadata module */
+
+static bool
+do_memory_from_fdt(int fd)
+{
+	struct stat sb;
+	char *buf = NULL;
+	int len, offset, fd2 = -1;
+	uint32_t sz, ver, esz, efisz;
+	uint64_t mmap_pa;
+	const uint32_t *u32p;
+	const uint64_t *u64p;
+	struct efi_map_header *efihdr;
+	struct efi_md *map;
+
+	if (fstat(fd, &sb) < 0)
+		return false;
+	buf = malloc(sb.st_size);
+	if (buf == NULL)
+		return false;
+	len = read(fd, buf, sb.st_size);
+	/* NB: we're reading this from sysfs, so mismatch OK */
+	if (len <= 0)
+		goto errout;
+
+	/*
+	 * Look for /chosen to find these values:
+	 * linux,uefi-system-table	PA of the UEFI System Table.
+	 * linux,uefi-mmap-start	PA of the UEFI memory map
+	 * linux,uefi-mmap-size		Size of mmap
+	 * linux,uefi-mmap-desc-size	Size of each entry of mmap
+	 * linux,uefi-mmap-desc-ver	Format version, should be 1
+	 */
+	offset = fdt_path_offset(buf, "/chosen");
+	if (offset <= 0)
+		goto errout;
+	u64p = fdt_getprop(buf, offset, "linux,uefi-system-table", &len);
+	if (u64p == NULL)
+		goto errout;
+	efi_systbl_phys = fdt64_to_cpu(*u64p);
+	u32p = fdt_getprop(buf, offset, "linux,uefi-mmap-desc-ver", &len);
+	if (u32p == NULL)
+		goto errout;
+	ver = fdt32_to_cpu(*u32p);
+	u32p = fdt_getprop(buf, offset, "linux,uefi-mmap-desc-size", &len);
+	if (u32p == NULL)
+		goto errout;
+	esz = fdt32_to_cpu(*u32p);
+	u32p = fdt_getprop(buf, offset, "linux,uefi-mmap-size", &len);
+	if (u32p == NULL)
+		goto errout;
+	sz = fdt32_to_cpu(*u32p);
+	u64p = fdt_getprop(buf, offset, "linux,uefi-mmap-start", &len);
+	if (u64p == NULL)
+		goto errout;
+	mmap_pa = fdt64_to_cpu(*u64p);
+	free(buf);
+
+	printf("UEFI MMAP: Ver %d Ent Size %d Tot Size %d PA %#lx\n",
+	    ver, esz, sz, mmap_pa);
+
+	/*
+	 * We have no ability to read the PA that this map is in, so
+	 * pass the address to FreeBSD via a rather odd flag entry as
+	 * the first map so early boot can copy the memory map into
+	 * this space and have the rest of the code cope.
+	 */
+	efisz = (sizeof(*efihdr) + 0xf) & ~0xf;
+	buf = malloc(sz + efisz);
+	if (buf == NULL)
+		return false;
+	efihdr = (struct efi_map_header *)buf;
+	map = (struct efi_md *)((uint8_t *)efihdr + efisz);
+	bzero(map, sz);
+	efihdr->memory_size = sz;
+	efihdr->descriptor_size = esz;
+	efihdr->descriptor_version = ver;
+	efi_map_phys_src = mmap_pa;
+	efi_map_hdr = efihdr;
+	efi_map_size = sz + efisz;
+
+	return true;
+errout:
+	close(fd2);
+	free(buf);
+	return false;
+}
+
+bool
+enumerate_memory_arch(void)
+{
+	int fd = -1;
+	bool rv;
+
+	fd = open("/sys/firmware/fdt", O_RDONLY);
+	if (fd != -1) {
+		printf("Doing trying to get UEFI from FDT -- fake\n");
+		rv = do_memory_from_fdt(fd);
+		close(fd);
+		if (rv) {
+			printf("Got it from /sys/firmware/fdt\n");
+		}
+		/*
+		 * So, we have physaddr to the memory table. However, we can't
+		 * open /dev/mem on some platforms to get the actual table. So
+		 * we have to fall through to get it from /proc/iomem.
+		 */
+	}
+
+	printf("Also reading /proc/iomem to learn of reserved areas\n");
+	populate_avail_from_iomem();
+
+	print_avail();
+
+	return true;
+}
+
+uint64_t
+kboot_get_phys_load_segment(void)
+{
+#define HOLE_SIZE	(64ul << 20)
+#define KERN_ALIGN	(2ul << 20)
+	uint64_t	s;
+
+	s = first_avail(KERN_ALIGN, HOLE_SIZE, SYSTEM_RAM);
+	if (s != 0)
+		return (s);
+	s = 0x40000000 | 0x4200000;	/* should never get here */
+	printf("Falling back to crazy address %#lx\n", s);
+	return (s);
+}