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D38255.id116013.diff
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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
@@ -449,3 +449,60 @@
printf("Falling back to crazy address %#lx\n", s);
return (s);
}
+
+void
+bi_loadsmap(struct preloaded_file *kfp)
+{
+ char *buffer;
+ struct efi_map_header *efihdr;
+ struct efi_md *md;
+ uint64_t sz, efisz, attr;
+ uint32_t type;
+
+ if (efi_systbl_phys)
+ file_addmetadata(kfp, MODINFOMD_FW_HANDLE, sizeof(efi_systbl_phys), &efi_systbl_phys);
+
+ /*
+ * If we have efi_map_hdr, then it's a pointer to the PA where this
+ * memory map lives. The trampoline code will copy it over. If we don't
+ * have it, we use whatever we found in /proc/iomap.
+ */
+ if (efi_map_hdr != NULL) {
+ file_addmetadata(kfp, MODINFOMD_EFI_MAP, efi_map_size, efi_map_hdr);
+ return;
+ }
+
+ efisz = (sizeof(*efihdr) + 0xf) & ~0xf;
+ sz = nr_seg * sizeof(*md);
+ buffer = malloc(efisz + sz);
+ efihdr = (struct efi_map_header *)buffer;
+ md = (struct efi_md *)(buffer + efisz);
+ for (int i = 0; i < nr_seg; i++) {
+ switch (segs[i].type) {
+ case system_ram:
+ case linux_code:
+ case linux_data:
+ type = EFI_MD_TYPE_FREE;
+ attr = 0;
+ break;
+ case firmware_reserved:
+ case unknown:
+ type = EFI_MD_TYPE_RT_DATA;
+ attr = EFI_MD_ATTR_WB;
+ break;
+ }
+
+ md[i].md_type = type;
+ md[i].__pad = 0;
+ md[i].md_phys = segs[i].start;
+ md[i].md_virt = segs[i].start; /* VA == PA */
+ md[i].md_pages = howmany(segs[i].end - segs[i].start + 1,
+ EFI_PAGE_SIZE);
+ md[i].md_attr = attr;
+ }
+ efihdr->memory_size = sz;
+ efihdr->descriptor_size = sizeof(*md);
+ efihdr->descriptor_version = EFI_MEMORY_DESCRIPTOR_VERSION;
+ file_addmetadata(kfp, MODINFOMD_EFI_MAP, efisz + sz, buffer);
+ free(buffer);
+}
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