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https://github.com/projectacrn/acrn-hypervisor.git
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c4f9a2fd70
There are some problems to use VM operations in a deamon process, such as Acrnd. the list_vm() does not return VM informations, it just print VM information to stdio, so we have get_vm_list() to get VM list head vmngr_head; get_vm_list() always creates a new fresh vm list every time, and must use put_vm_list() to delete old list. So Acrnd need to create and destroy vm list frequently. In fact we just need the vmngr_head to be an extern variable. And to make it refreshable.We can insert new VMs, remove dead ones, and update their state. Reviewed-by: Yan Like <like.yan@intel.com> Signed-off-by: Tao Yuhong <yuhong.tao@intel.com>
62 lines
1.6 KiB
C
62 lines
1.6 KiB
C
/**
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* Copyright (C) 2018 Intel Corporation
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef _ACRNCTL_H_
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#define _ACRNCTL_H_
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#include <sys/queue.h>
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#define ACRNCTL_OPT_ROOT "/opt/acrn/conf"
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#define ACRN_DM_SOCK_ROOT "/run/acrn/mngr"
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#define MAX_NAME_LEN (16)
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enum vm_state {
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VM_STATE_UNKNOWN = 0,
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VM_CREATED, /* VM created / awaiting start (boot) */
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VM_STARTED, /* VM started (booted) */
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VM_PAUSED, /* VM paused */
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VM_UNTRACKED, /* VM not created by acrnctl, or its launch script can change vm name */
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};
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extern const char *state_str[];
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/**
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* @brief search vm indentified by vm from vmmngr_head
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*
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* @return vmmngr_struct * if find, NULL not find
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*/
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struct vmmngr_struct *vmmngr_find(char *vmname);
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/* Per-vm vm managerment struct */
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struct vmmngr_struct {
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char name[MAX_NAME_LEN];
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unsigned long state;
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unsigned long update; /* update count, remove a vm if no update for it */
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LIST_ENTRY(vmmngr_struct) list;
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};
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int shell_cmd(const char *cmd, char *outbuf, int len);
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/* update names and states of VMs in SOS
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* before you stop, start, pause, resume, suspend continue a VM
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* use a name, it is better to run vmmngr_update() first
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* and use vmngr_find() to check is this VM is still available
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*/
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void vmmngr_update(void);
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extern LIST_HEAD(vmmngr_list_struct, vmmngr_struct) vmmngr_head;
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/* vm life cycle ops */
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int list_vm(void);
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int stop_vm(char *vmname);
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int start_vm(char *vmname);
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int pause_vm(char *vmname);
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int continue_vm(char *vmname);
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int suspend_vm(char *vmname);
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int resume_vm(char *vmname);
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#endif /* _ACRNCTL_H_ */
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