8  * your option) any later version. See the COPYING file in the top-level
15 #include "hw/s390x/s390-virtio-ccw.h"
16 #include "hw/qdev-properties.h"
17 #include "hw/s390x/storage-keys.h"
19 #include "qapi/qapi-commands-machine.h"
21 #include "qemu/error-report.h"
23 #include "system/address-spaces.h"
25 #include "migration/qemu-file-types.h"
65     rc = kc->get_skeys(ks, start_gfn, count, keys);  in s390_skeys_get()
78     rc = kc->set_skeys(ks, start_gfn, count, keys);  in s390_skeys_set()
89     uint64_t maxpage = curpage + count - 1;  in write_keys()
114     if (!skeyclass->skeys_are_enabled(ss)) {  in hmp_info_skeys()
126     r = skeyclass->get_skeys(ss, addr / TARGET_PAGE_SIZE, 1, &key);  in hmp_info_skeys()
128         monitor_printf(mon, "Error: %s\n", strerror(-r));  in hmp_info_skeys()
160     if (!skeyclass->skeys_are_enabled(ss)) {  in s390_qmp_dump_skeys()
161         error_setg(errp, "This guest is not using storage keys - "  in s390_qmp_dump_skeys()
189         assert(QEMU_IS_ALIGNED(block->target_start, TARGET_PAGE_SIZE));  in s390_qmp_dump_skeys()
190         assert(QEMU_IS_ALIGNED(block->target_end, TARGET_PAGE_SIZE));  in s390_qmp_dump_skeys()
192         gfn = block->target_start / TARGET_PAGE_SIZE;  in s390_qmp_dump_skeys()
193         pages = (block->target_end - block->target_start) / TARGET_PAGE_SIZE;  in s390_qmp_dump_skeys()
198             ret = skeyclass->get_skeys(ss, gfn, cur_pages, buf);  in s390_qmp_dump_skeys()
200                 error_setg_errno(errp, -ret, "get_keys error");  in s390_qmp_dump_skeys()
211             pages -= cur_pages;  in s390_qmp_dump_skeys()
228     return !!skeys->keydata;  in qemu_s390_skeys_are_enabled()
236     if (likely(skeys->keydata)) {  in qemu_s390_enable_skeys()
245      *    over-indication. Let's avoid touching megabytes of data for now and  in qemu_s390_enable_skeys()
250      *    some sparse data structure.  in qemu_s390_enable_skeys()
257         skeys->key_count = s390_get_memory_limit(s390ms) / TARGET_PAGE_SIZE;  in qemu_s390_enable_skeys()
258         skeys->keydata = g_malloc0(skeys->key_count);  in qemu_s390_enable_skeys()
271     if (unlikely(!skeydev->keydata || start_gfn + count > skeydev->key_count ||  in qemu_s390_skeys_set()
276         return -EINVAL;  in qemu_s390_skeys_set()
280         skeydev->keydata[start_gfn + i] = keys[i];  in qemu_s390_skeys_set()
292     if (unlikely(!skeydev->keydata || start_gfn + count > skeydev->key_count ||  in qemu_s390_skeys_get()
297         return -EINVAL;  in qemu_s390_skeys_get()
301         keys[i] = skeydev->keydata[start_gfn + i];  in qemu_s390_skeys_get()
311     skeyclass->skeys_are_enabled = qemu_s390_skeys_are_enabled;  in qemu_s390_skeys_class_init()
312     skeyclass->enable_skeys = qemu_s390_enable_skeys;  in qemu_s390_skeys_class_init()
313     skeyclass->get_skeys = qemu_s390_skeys_get;  in qemu_s390_skeys_class_init()
314     skeyclass->set_skeys = qemu_s390_skeys_set;  in qemu_s390_skeys_class_init()
317     dc->user_creatable = false;  in qemu_s390_skeys_class_init()
330     if (!skeyclass->skeys_are_enabled(ss)) {  in s390_storage_keys_save()
345         assert(QEMU_IS_ALIGNED(block->target_start, TARGET_PAGE_SIZE));  in s390_storage_keys_save()
346         assert(QEMU_IS_ALIGNED(block->target_end, TARGET_PAGE_SIZE));  in s390_storage_keys_save()
348         gfn = block->target_start / TARGET_PAGE_SIZE;  in s390_storage_keys_save()
349         pages = (block->target_end - block->target_start) / TARGET_PAGE_SIZE;  in s390_storage_keys_save()
350         qemu_put_be64(f, block->target_start | S390_SKEYS_SAVE_FLAG_SKEYS);  in s390_storage_keys_save()
357                 error = skeyclass->get_skeys(ss, gfn, cur_pages, buf);  in s390_storage_keys_save()
370             pages -= cur_pages;  in s390_storage_keys_save()
395      * Make sure to lazy-enable if required to be done explicitly. No need to  in s390_storage_keys_load()
398     if (skeyclass->enable_skeys) {  in s390_storage_keys_load()
399         skeyclass->enable_skeys(ss);  in s390_storage_keys_load()
419                 ret = -ENOMEM;  in s390_storage_keys_load()
424                 cur_count = MIN(total_count - handled_count,  in s390_storage_keys_load()
428                 ret = skeyclass->set_skeys(ss, cur_gfn, cur_count, buf);  in s390_storage_keys_load()
441             ret = -EINVAL;  in s390_storage_keys_load()
449             ret = -EINVAL;  in s390_storage_keys_load()
472     dc->hotpluggable = false;  in s390_skeys_class_init()
473     dc->realize = s390_skeys_realize;  in s390_skeys_class_init()
474     set_bit(DEVICE_CATEGORY_MISC, dc->categories);  in s390_skeys_class_init()