diff options
Diffstat (limited to 'backends')
| -rw-r--r-- | backends/hostmem-file.c | 22 | ||||
| -rw-r--r-- | backends/hostmem-memfd.c | 2 | ||||
| -rw-r--r-- | backends/hostmem-ram.c | 9 | ||||
| -rw-r--r-- | backends/hostmem.c | 53 |
4 files changed, 62 insertions, 24 deletions
diff --git a/backends/hostmem-file.c b/backends/hostmem-file.c index 6630021226..7a34e25c43 100644 --- a/backends/hostmem-file.c +++ b/backends/hostmem-file.c @@ -43,7 +43,7 @@ file_backend_memory_alloc(HostMemoryBackend *backend, Error **errp) { HostMemoryBackendFile *fb = MEMORY_BACKEND_FILE(backend); #ifdef CONFIG_POSIX - gchar *path; + gchar *name; #endif if (!backend->size) { @@ -58,14 +58,14 @@ file_backend_memory_alloc(HostMemoryBackend *backend, Error **errp) error_setg(errp, "-mem-path not supported on this host"); #else backend->force_prealloc = mem_prealloc; - path = object_get_canonical_path(OBJECT(backend)); + name = host_memory_backend_get_name(backend); memory_region_init_ram_from_file(&backend->mr, OBJECT(backend), - path, + name, backend->size, fb->align, (backend->share ? RAM_SHARED : 0) | (fb->is_pmem ? RAM_PMEM : 0), fb->mem_path, errp); - g_free(path); + g_free(name); #endif } @@ -145,26 +145,20 @@ static void file_memory_backend_set_pmem(Object *o, bool value, Error **errp) HostMemoryBackendFile *fb = MEMORY_BACKEND_FILE(o); if (host_memory_backend_mr_inited(backend)) { - char *path = object_get_canonical_path_component(o); - error_setg(errp, "cannot change property 'pmem' of %s '%s'", - object_get_typename(o), - path); - g_free(path); + error_setg(errp, "cannot change property 'pmem' of %s.", + object_get_typename(o)); return; } #ifndef CONFIG_LIBPMEM if (value) { Error *local_err = NULL; - char *path = object_get_canonical_path_component(o); error_setg(&local_err, "Lack of libpmem support while setting the 'pmem=on'" - " of %s '%s'. We can't ensure data persistence.", - object_get_typename(o), - path); - g_free(path); + " of %s. We can't ensure data persistence.", + object_get_typename(o)); error_propagate(errp, local_err); return; } diff --git a/backends/hostmem-memfd.c b/backends/hostmem-memfd.c index 2eb9c827a5..98c9bf3240 100644 --- a/backends/hostmem-memfd.c +++ b/backends/hostmem-memfd.c @@ -53,7 +53,7 @@ memfd_backend_memory_alloc(HostMemoryBackend *backend, Error **errp) return; } - name = object_get_canonical_path(OBJECT(backend)); + name = host_memory_backend_get_name(backend); memory_region_init_ram_from_fd(&backend->mr, OBJECT(backend), name, backend->size, backend->share, fd, errp); diff --git a/backends/hostmem-ram.c b/backends/hostmem-ram.c index 7ddd08d370..24b65d9ae3 100644 --- a/backends/hostmem-ram.c +++ b/backends/hostmem-ram.c @@ -16,21 +16,20 @@ #define TYPE_MEMORY_BACKEND_RAM "memory-backend-ram" - static void ram_backend_memory_alloc(HostMemoryBackend *backend, Error **errp) { - char *path; + char *name; if (!backend->size) { error_setg(errp, "can't create backend with size 0"); return; } - path = object_get_canonical_path_component(OBJECT(backend)); - memory_region_init_ram_shared_nomigrate(&backend->mr, OBJECT(backend), path, + name = host_memory_backend_get_name(backend); + memory_region_init_ram_shared_nomigrate(&backend->mr, OBJECT(backend), name, backend->size, backend->share, errp); - g_free(path); + g_free(name); } static void diff --git a/backends/hostmem.c b/backends/hostmem.c index 1a89342039..0c8ef17653 100644 --- a/backends/hostmem.c +++ b/backends/hostmem.c @@ -28,6 +28,16 @@ QEMU_BUILD_BUG_ON(HOST_MEM_POLICY_BIND != MPOL_BIND); QEMU_BUILD_BUG_ON(HOST_MEM_POLICY_INTERLEAVE != MPOL_INTERLEAVE); #endif +char * +host_memory_backend_get_name(HostMemoryBackend *backend) +{ + if (!backend->use_canonical_path) { + return object_get_canonical_path_component(OBJECT(backend)); + } + + return object_get_canonical_path(OBJECT(backend)); +} + static void host_memory_backend_get_size(Object *obj, Visitor *v, const char *name, void *opaque, Error **errp) @@ -103,14 +113,23 @@ host_memory_backend_set_host_nodes(Object *obj, Visitor *v, const char *name, { #ifdef CONFIG_NUMA HostMemoryBackend *backend = MEMORY_BACKEND(obj); - uint16List *l = NULL; + uint16List *l, *host_nodes = NULL; + + visit_type_uint16List(v, name, &host_nodes, errp); - visit_type_uint16List(v, name, &l, errp); + for (l = host_nodes; l; l = l->next) { + if (l->value >= MAX_NODES) { + error_setg(errp, "Invalid host-nodes value: %d", l->value); + goto out; + } + } - while (l) { + for (l = host_nodes; l; l = l->next) { bitmap_set(backend->host_nodes, l->value, 1); - l = l->next; } + +out: + qapi_free_uint16List(host_nodes); #else error_setg(errp, "NUMA node binding are not supported by this QEMU"); #endif @@ -238,6 +257,11 @@ static void host_memory_backend_init(Object *obj) backend->prealloc = mem_prealloc; } +static void host_memory_backend_post_init(Object *obj) +{ + object_apply_compat_props(obj); +} + bool host_memory_backend_mr_inited(HostMemoryBackend *backend) { /* @@ -386,6 +410,23 @@ static void host_memory_backend_set_share(Object *o, bool value, Error **errp) backend->share = value; } +static bool +host_memory_backend_get_use_canonical_path(Object *obj, Error **errp) +{ + HostMemoryBackend *backend = MEMORY_BACKEND(obj); + + return backend->use_canonical_path; +} + +static void +host_memory_backend_set_use_canonical_path(Object *obj, bool value, + Error **errp) +{ + HostMemoryBackend *backend = MEMORY_BACKEND(obj); + + backend->use_canonical_path = value; +} + static void host_memory_backend_class_init(ObjectClass *oc, void *data) { @@ -432,6 +473,9 @@ host_memory_backend_class_init(ObjectClass *oc, void *data) &error_abort); object_class_property_set_description(oc, "share", "Mark the memory as private to QEMU or shared", &error_abort); + object_class_property_add_bool(oc, "x-use-canonical-path-for-ramblock-id", + host_memory_backend_get_use_canonical_path, + host_memory_backend_set_use_canonical_path, &error_abort); } static const TypeInfo host_memory_backend_info = { @@ -442,6 +486,7 @@ static const TypeInfo host_memory_backend_info = { .class_init = host_memory_backend_class_init, .instance_size = sizeof(HostMemoryBackend), .instance_init = host_memory_backend_init, + .instance_post_init = host_memory_backend_post_init, .interfaces = (InterfaceInfo[]) { { TYPE_USER_CREATABLE }, { } |