Differential D19495 Diff 60356 usr.sbin/bhyve/snapshot.h

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usr.sbin/bhyve/snapshot.h

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				#ifndef _BHYVE_SNAPSHOT_
				#define _BHYVE_SNAPSHOT_

				#include <machine/vmm_snapshot.h>
				#include <libxo/xo.h>
				#include <ucl.h>

				struct vmctx;

				struct restore_state {
				int kdata_fd;
				jhbAuthorUnsubmitted Done Inline Actions Why does this need packed? If it isn't stored in a file, we should let the compiler choose the optimal layout. jhb: Why does this need packed? If it isn't stored in a file, we should let the compiler choose the…
				int vmmem_fd;

				void *kdata_map;
				size_t kdata_len;

				size_t vmmem_len;

				struct ucl_parser *meta_parser;
				ucl_object_t *meta_root_obj;
				};

				struct checkpoint_thread_info {
				struct vmctx *ctx;
				int socket_fd;
				struct sockaddr_un *addr;
				} checkpoint_info;

				typedef int (vm_snapshot_dev_cb)(struct vm_snapshot_meta );
				typedef int (vm_pause_dev_cb) (struct vmctx , const char *);
				typedef int (vm_resume_dev_cb) (struct vmctx , const char *);

				struct vm_snapshot_dev_info {
				const char dev_name; / device name */
				vm_snapshot_dev_cb snapshot_cb; /* callback for device snapshot */
				vm_pause_dev_cb pause_cb; /* callback for device pause */
				vm_resume_dev_cb resume_cb; /* callback for device resume */
				};

				struct vm_snapshot_kern_info {
				const char struct_name; / kernel structure name*/
				enum snapshot_req req; /* request type */
				};


				void destroy_restore_state(struct restore_state *rstate);

				const char * lookup_vmname(struct restore_state *rstate);
				int lookup_memflags(struct restore_state *rstate);
				size_t lookup_memsize(struct restore_state *rstate);
				int lookup_guest_ncpus(struct restore_state *rstate);

				void checkpoint_cpu_add(int vcpu);
				void checkpoint_cpu_resume(int vcpu);
				void checkpoint_cpu_suspend(int vcpu);

				int restore_vm_mem(struct vmctx ctx, struct restore_state rstate);
				int vm_restore_kern_structs(struct vmctx ctx, struct restore_state rstate);

				int vm_restore_user_devs(struct vmctx ctx, struct restore_state rstate);
				int vm_pause_user_devs(struct vmctx *ctx);
				int vm_resume_user_devs(struct vmctx *ctx);

				int get_checkpoint_msg(int conn_fd, struct vmctx *ctx);
				void checkpoint_thread(void param);
				int init_checkpoint_thread(struct vmctx *ctx);


				int load_restore_file(const char filename, struct restore_state rstate);

				#endif