CAMLprim value stub_xc_hvm_build_native(value xc_handle, value domid, value mem_max_mib, value mem_start_mib, value image_name, value store_evtchn, value console_evtchn) { CAMLparam5(xc_handle, domid, mem_max_mib, mem_start_mib, image_name); CAMLxparam2(store_evtchn, console_evtchn); CAMLlocal1(result); char *image_name_c = strdup(String_val(image_name)); char *error[256]; xc_interface *xch; unsigned long store_mfn=0; unsigned long console_mfn=0; int r; struct flags f; /* The xenguest interface changed and was backported to XCP: */ #if defined(XENGUEST_HAS_HVM_BUILD_ARGS) || (__XEN_LATEST_INTERFACE_VERSION__ >= 0x00040200) struct xc_hvm_build_args args; #endif get_flags(&f, _D(domid)); xch = _H(xc_handle); configure_vcpus(xch, _D(domid), f); configure_tsc(xch, _D(domid), f); #if defined(XENGUEST_HAS_HVM_BUILD_ARGS) || (__XEN_LATEST_INTERFACE_VERSION__ >= 0x00040200) args.mem_size = (uint64_t)Int_val(mem_max_mib) << 20; args.mem_target = (uint64_t)Int_val(mem_start_mib) << 20; args.mmio_size = f.mmio_size_mib << 20; args.image_file_name = image_name_c; #endif caml_enter_blocking_section (); #if defined(XENGUEST_HAS_HVM_BUILD_ARGS) || (__XEN_LATEST_INTERFACE_VERSION__ >= 0x00040200) r = xc_hvm_build(xch, _D(domid), &args); #else r = xc_hvm_build_target_mem(xch, _D(domid), Int_val(mem_max_mib), Int_val(mem_start_mib), image_name_c); #endif caml_leave_blocking_section (); free(image_name_c); if (r) failwith_oss_xc(xch, "hvm_build"); r = hvm_build_set_params(xch, _D(domid), Int_val(store_evtchn), &store_mfn, Int_val(console_evtchn), &console_mfn, f); if (r) failwith_oss_xc(xch, "hvm_build_params"); result = caml_alloc_tuple(2); Store_field(result, 0, caml_copy_nativeint(store_mfn)); Store_field(result, 1, caml_copy_nativeint(console_mfn)); CAMLreturn(result); }
int stub_xc_linux_build(int c_mem_max_mib, int mem_start_mib, const char *image_name, const char *ramdisk_name, const char *cmdline, const char *features, int flags, int store_evtchn, int store_domid, int console_evtchn, int console_domid, unsigned long *store_mfn, unsigned long *console_mfn, char *protocol) { int r; struct xc_dom_image *dom; struct flags f; get_flags(&f); xc_dom_loginit(xch); dom = xc_dom_allocate(xch, cmdline, features); if (!dom) failwith_oss_xc("xc_dom_allocate"); /* The default image size limits are too large. */ xc_dom_kernel_max_size(dom, get_image_max_size("kernel")); xc_dom_ramdisk_max_size(dom, get_image_max_size("ramdisk")); configure_vcpus(f); configure_tsc(f); r = xc_dom_linux_build(xch, dom, domid, mem_start_mib, image_name, ramdisk_name, flags, store_evtchn, store_mfn, console_evtchn, console_mfn); if ( r ) failwith_oss_xc("xc_dom_linux_build"); r = construct_cpuid_policy(&f, false); if ( r ) failwith_oss_xc("construct_cpuid_policy"); r = xc_dom_gnttab_seed(xch, domid, *console_mfn, *store_mfn, console_domid, store_domid); if ( r ) failwith_oss_xc("xc_dom_gnttab_seed"); strncpy(protocol, xc_domain_get_native_protocol(xch, domid), 64); free_flags(&f); xc_dom_release(dom); return 0; }
CAMLprim value stub_xc_linux_build_native(value xc_handle, value domid, value mem_max_mib, value mem_start_mib, value image_name, value ramdisk_name, value cmdline, value features, value flags, value store_evtchn, value console_evtchn) { CAMLparam5(xc_handle, domid, mem_max_mib, mem_start_mib, image_name); CAMLxparam5(ramdisk_name, cmdline, features, flags, store_evtchn); CAMLxparam1(console_evtchn); CAMLlocal1(result); unsigned long store_mfn; unsigned long console_mfn; int r; struct xc_dom_image *dom; char c_protocol[64]; /* Copy the ocaml values into c-land before dropping the mutex */ xc_interface *xch = _H(xc_handle); unsigned int c_mem_start_mib = Int_val(mem_start_mib); uint32_t c_domid = _D(domid); char *c_image_name = strdup(String_val(image_name)); char *c_ramdisk_name = ramdisk_name == None_val ? NULL : strdup(String_val(Field(ramdisk_name, 0))); unsigned long c_flags = Int_val(flags); unsigned int c_store_evtchn = Int_val(store_evtchn); unsigned int c_console_evtchn = Int_val(console_evtchn); struct flags f; get_flags(&f,c_domid); xc_dom_loginit(xch); dom = xc_dom_allocate(xch, String_val(cmdline), String_val(features)); if (!dom) failwith_oss_xc(xch, "xc_dom_allocate"); configure_vcpus(xch, c_domid, f); configure_tsc(xch, c_domid, f); #ifdef XC_HAVE_DECOMPRESS_LIMITS if ( xc_dom_kernel_max_size(dom, f.kernel_max_size) ) failwith_oss_xc(xch, "xc_dom_kernel_max_size"); if ( xc_dom_ramdisk_max_size(dom, f.ramdisk_max_size) ) failwith_oss_xc(xch, "xc_dom_ramdisk_max_size"); #else if ( f.kernel_max_size || f.ramdisk_max_size ) { syslog(LOG_WARNING|LOG_DAEMON,"Kernel/Ramdisk limits set, but no support compiled in"); } #endif caml_enter_blocking_section(); r = xc_dom_linux_build(xch, dom, c_domid, c_mem_start_mib, c_image_name, c_ramdisk_name, c_flags, c_store_evtchn, &store_mfn, c_console_evtchn, &console_mfn); caml_leave_blocking_section(); #ifndef XEN_UNSTABLE strncpy(c_protocol, xc_dom_get_native_protocol(dom), 64); #else memset(c_protocol, '\0', 64); #endif free(c_image_name); free(c_ramdisk_name); xc_dom_release(dom); if (r != 0) failwith_oss_xc(xch, "xc_dom_linux_build"); result = caml_alloc_tuple(3); Store_field(result, 0, caml_copy_nativeint(store_mfn)); Store_field(result, 1, caml_copy_nativeint(console_mfn)); Store_field(result, 2, caml_copy_string(c_protocol)); CAMLreturn(result); }
int stub_xc_hvm_build_with_mem(uint64_t max_mem_mib, uint64_t max_start_mib, const char *image) { uint64_t lowmem_end, highmem_start, highmem_end, mmio_start; struct xc_hvm_build_args args = { .mem_size = max_mem_mib << 20, .mem_target = max_start_mib << 20, .mmio_size = HVM_BELOW_4G_MMIO_LENGTH, .image_file_name = image, }; unsigned int i, j, nr = 0; struct e820entry *e820; int rc; unsigned int nr_rdm_entries[MAX_RMRR_DEVICES] = {0}; unsigned int nr_rmrr_devs = 0; struct xen_reserved_device_memory *xrdm[MAX_RMRR_DEVICES] = {0}; unsigned long rmrr_overlapped_ram = 0; char *s; if ( pci_passthrough_sbdf_list ) { s = strtok(pci_passthrough_sbdf_list,","); while ( s != NULL ) { unsigned int seg, bus, device, func; xg_info("Getting RMRRs for device '%s'\n",s); if ( parse_pci_sbdf(s, &seg, &bus, &device, &func) ) { if ( !get_rdm(seg, bus, (device << 3) + func, &nr_rdm_entries[nr_rmrr_devs], &xrdm[nr_rmrr_devs]) ) nr_rmrr_devs++; } if ( nr_rmrr_devs == MAX_RMRR_DEVICES ) { xg_err("Error: hit limit of %d RMRR devices for domain\n", MAX_RMRR_DEVICES); exit(1); } s = strtok (NULL, ","); } } e820 = malloc(sizeof(*e820) * E820MAX); if (!e820) return -ENOMEM; lowmem_end = args.mem_size; highmem_end = highmem_start = 1ull << 32; mmio_start = highmem_start - args.mmio_size; if ( lowmem_end > mmio_start ) { highmem_end = (1ull << 32) + (lowmem_end - mmio_start); lowmem_end = mmio_start; } args.lowmem_end = lowmem_end; args.highmem_end = highmem_end; args.mmio_start = mmio_start; /* Leave low 1MB to HVMLoader... */ e820[nr].addr = 0x100000u; e820[nr].size = args.lowmem_end - 0x100000u; e820[nr].type = E820_RAM; nr++; /* RDM mapping */ for (i = 0; i < nr_rmrr_devs; i++) { for (j = 0; j < nr_rdm_entries[i]; j++) { e820[nr].addr = xrdm[i][j].start_pfn << XC_PAGE_SHIFT; e820[nr].size = xrdm[i][j].nr_pages << XC_PAGE_SHIFT; e820[nr].type = E820_RESERVED; xg_info("Adding RMRR 0x%lx size 0x%lx\n", e820[nr].addr, e820[nr].size); if ( e820[nr].addr < args.lowmem_end ) { rmrr_overlapped_ram += ( args.lowmem_end - e820[nr].addr ); args.lowmem_end = e820[nr].addr; } nr++; } } e820[0].size -= rmrr_overlapped_ram; args.highmem_end += rmrr_overlapped_ram; args.mmio_size += rmrr_overlapped_ram; args.mmio_start -= rmrr_overlapped_ram; for (i = 0; i < nr_rmrr_devs; i++) { free(xrdm[i]); } if ( args.highmem_end > highmem_start ) { e820[nr].addr = highmem_start; e820[nr].size = args.highmem_end - e820[nr].addr; e820[nr].type = E820_RAM; nr++; } rc = xc_hvm_build(xch, domid, &args); if (!rc) rc = xc_domain_set_memory_map(xch, domid, e820, nr); free(e820); return rc; } int stub_xc_hvm_build(int mem_max_mib, int mem_start_mib, const char *image_name, int store_evtchn, int store_domid, int console_evtchn, int console_domid, unsigned long *store_mfn, unsigned long *console_mfn) { int r; struct flags f; get_flags(&f); configure_vcpus(f); configure_tsc(f); r = stub_xc_hvm_build_with_mem(mem_max_mib, mem_start_mib, image_name); if ( r ) failwith_oss_xc("hvm_build"); r = hvm_build_set_params(store_evtchn, store_mfn, console_evtchn, console_mfn, f); if ( r ) failwith_oss_xc("hvm_build_params"); r = construct_cpuid_policy(&f, true); if ( r ) failwith_oss_xc("construct_cpuid_policy"); r = xc_dom_gnttab_hvm_seed(xch, domid, *console_mfn, *store_mfn, console_domid, store_domid); if ( r ) failwith_oss_xc("xc_dom_gnttab_hvm_seed"); free_flags(&f); return 0; }