static int xc_dom_load_elf_kernel(struct xc_dom_image *dom) { struct elf_binary *elf = dom->private_loader; elf->dest = xc_dom_seg_to_ptr(dom, &dom->kernel_seg); elf_load_binary(elf); if ( dom->parms.bsd_symtab ) xc_dom_load_elf_symtab(dom, elf, 1); return 0; }
static int __init pvh_load_kernel(struct domain *d, const module_t *image, unsigned long image_headroom, module_t *initrd, void *image_base, char *cmdline, paddr_t *entry, paddr_t *start_info_addr) { void *image_start = image_base + image_headroom; unsigned long image_len = image->mod_end; struct elf_binary elf; struct elf_dom_parms parms; paddr_t last_addr; struct hvm_start_info start_info = { 0 }; struct hvm_modlist_entry mod = { 0 }; struct vcpu *v = d->vcpu[0]; int rc; if ( (rc = bzimage_parse(image_base, &image_start, &image_len)) != 0 ) { printk("Error trying to detect bz compressed kernel\n"); return rc; } if ( (rc = elf_init(&elf, image_start, image_len)) != 0 ) { printk("Unable to init ELF\n"); return rc; } #ifdef VERBOSE elf_set_verbose(&elf); #endif elf_parse_binary(&elf); if ( (rc = elf_xen_parse(&elf, &parms)) != 0 ) { printk("Unable to parse kernel for ELFNOTES\n"); return rc; } if ( parms.phys_entry == UNSET_ADDR32 ) { printk("Unable to find XEN_ELFNOTE_PHYS32_ENTRY address\n"); return -EINVAL; } printk("OS: %s version: %s loader: %s bitness: %s\n", parms.guest_os, parms.guest_ver, parms.loader, elf_64bit(&elf) ? "64-bit" : "32-bit"); /* Copy the OS image and free temporary buffer. */ elf.dest_base = (void *)(parms.virt_kstart - parms.virt_base); elf.dest_size = parms.virt_kend - parms.virt_kstart; elf_set_vcpu(&elf, v); rc = elf_load_binary(&elf); if ( rc < 0 ) { printk("Failed to load kernel: %d\n", rc); printk("Xen dom0 kernel broken ELF: %s\n", elf_check_broken(&elf)); return rc; } last_addr = ROUNDUP(parms.virt_kend - parms.virt_base, PAGE_SIZE); if ( initrd != NULL ) { rc = hvm_copy_to_guest_phys(last_addr, mfn_to_virt(initrd->mod_start), initrd->mod_end, v); if ( rc ) { printk("Unable to copy initrd to guest\n"); return rc; } mod.paddr = last_addr; mod.size = initrd->mod_end; last_addr += ROUNDUP(initrd->mod_end, PAGE_SIZE); } /* Free temporary buffers. */ discard_initial_images(); if ( cmdline != NULL ) { rc = hvm_copy_to_guest_phys(last_addr, cmdline, strlen(cmdline) + 1, v); if ( rc ) { printk("Unable to copy guest command line\n"); return rc; } start_info.cmdline_paddr = last_addr; /* * Round up to 32/64 bits (depending on the guest kernel bitness) so * the modlist/start_info is aligned. */ last_addr += ROUNDUP(strlen(cmdline) + 1, elf_64bit(&elf) ? 8 : 4); } if ( initrd != NULL ) { rc = hvm_copy_to_guest_phys(last_addr, &mod, sizeof(mod), v); if ( rc ) { printk("Unable to copy guest modules\n"); return rc; } start_info.modlist_paddr = last_addr; start_info.nr_modules = 1; last_addr += sizeof(mod); } start_info.magic = XEN_HVM_START_MAGIC_VALUE; start_info.flags = SIF_PRIVILEGED | SIF_INITDOMAIN; rc = hvm_copy_to_guest_phys(last_addr, &start_info, sizeof(start_info), v); if ( rc ) { printk("Unable to copy start info to guest\n"); return rc; } *entry = parms.phys_entry; *start_info_addr = last_addr; return 0; }