132 } trace_buffer;  variable
152 static int hyp_trace_buffer_alloc_bpages_backing(struct hyp_trace_buffer *trace_buffer, size_t size)  in hyp_trace_buffer_alloc_bpages_backing()  argument
172 	trace_buffer->desc->bpages_backing_start = (unsigned long)start;  in hyp_trace_buffer_alloc_bpages_backing()
173 	trace_buffer->desc->bpages_backing_size = backing_size;  in hyp_trace_buffer_alloc_bpages_backing()
178 static void hyp_trace_buffer_free_bpages_backing(struct hyp_trace_buffer *trace_buffer)  in hyp_trace_buffer_free_bpages_backing()  argument
180 	free_pages_exact((void *)trace_buffer->desc->bpages_backing_start,  in hyp_trace_buffer_free_bpages_backing()
181 			 trace_buffer->desc->bpages_backing_size);  in hyp_trace_buffer_free_bpages_backing()
184 static void hyp_trace_buffer_unshare_hyp(struct hyp_trace_buffer *trace_buffer, int last_cpu)  in hyp_trace_buffer_unshare_hyp()  argument
189 	for_each_ring_buffer_desc(rb_desc, cpu, &trace_buffer->desc->trace_buffer_desc) {  in hyp_trace_buffer_unshare_hyp()
199 static int hyp_trace_buffer_share_hyp(struct hyp_trace_buffer *trace_buffer)  in hyp_trace_buffer_share_hyp()  argument
204 	for_each_ring_buffer_desc(rb_desc, cpu, &trace_buffer->desc->trace_buffer_desc) {  in hyp_trace_buffer_share_hyp()
224 		hyp_trace_buffer_unshare_hyp(trace_buffer, --cpu);  in hyp_trace_buffer_share_hyp()
231 	struct hyp_trace_buffer *trace_buffer = priv;  in hyp_trace_load()  local
236 	if (WARN_ON(trace_buffer->desc))  in hyp_trace_load()
256 	trace_buffer->desc = desc;  in hyp_trace_load()
257 	trace_buffer->desc_size = desc_size;  in hyp_trace_load()
259 	ret = hyp_trace_buffer_alloc_bpages_backing(trace_buffer, size);  in hyp_trace_load()
268 	ret = hyp_trace_buffer_share_hyp(trace_buffer);  in hyp_trace_load()
279 	hyp_trace_buffer_unshare_hyp(trace_buffer, INT_MAX);  in hyp_trace_load()
285 	hyp_trace_buffer_free_bpages_backing(trace_buffer);  in hyp_trace_load()
289 	trace_buffer->desc = NULL;  in hyp_trace_load()
296 	struct hyp_trace_buffer *trace_buffer = priv;  in hyp_trace_unload()  local
298 	if (WARN_ON(desc != &trace_buffer->desc->trace_buffer_desc))  in hyp_trace_unload()
302 	hyp_trace_buffer_unshare_hyp(trace_buffer, INT_MAX);  in hyp_trace_unload()
304 	hyp_trace_buffer_free_bpages_backing(trace_buffer);  in hyp_trace_unload()
305 	free_pages_exact(trace_buffer->desc, trace_buffer->desc_size);  in hyp_trace_unload()
306 	trace_buffer->desc = NULL;  in hyp_trace_unload()
307 	trace_buffer->desc_size = 0;  in hyp_trace_unload()
455 	return trace_remote_register("hypervisor", &trace_remote_callbacks, &trace_buffer,  in kvm_hyp_trace_init()