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/*
* This file and its contents are supplied under the terms of the
* Common Development and Distribution License ("CDDL"), version 1.0.
* You may only use this file in accordance with the terms of version
* 1.0 of the CDDL.
*
* A full copy of the text of the CDDL should have accompanied this
* source. A copy of the CDDL is also available via the Internet at
* http://www.illumos.org/license/CDDL.
*/
/* This file is dual-licensed; see usr/src/contrib/bhyve/LICENSE */
/*
* Copyright 2014 Pluribus Networks Inc.
* Copyright 2019 Joyent, Inc.
* Copyright 2022 Oxide Computer Company
*/
#ifndef _VMM_IMPL_H_
#define _VMM_IMPL_H_
#include <sys/mutex.h>
#include <sys/queue.h>
#include <sys/varargs.h>
#include <sys/zone.h>
#include <sys/kstat.h>
#include <sys/vmm.h>
#ifdef _KERNEL
#define VMM_CTL_MINOR 0
/*
* Rather than creating whole character devices for devmem mappings, they are
* available by mmap(2)ing the vmm handle at a specific offset. These offsets
* begin just above the maximum allow guest physical address.
*/
#define VM_DEVMEM_START (VM_MAXUSER_ADDRESS + 1)
struct vmm_devmem_entry {
list_node_t vde_node;
int vde_segid;
char vde_name[VM_MAX_SEG_NAMELEN];
size_t vde_len;
off_t vde_off;
};
typedef struct vmm_devmem_entry vmm_devmem_entry_t;
typedef struct vmm_zsd vmm_zsd_t;
enum vmm_softc_state {
VMM_HELD = 1, /* external driver(s) possess hold on the VM */
VMM_CLEANUP = 2, /* request that holds are released */
VMM_PURGED = 4, /* all hold have been released */
VMM_BLOCK_HOOK = 8, /* mem hook install temporarily blocked */
VMM_DESTROY = 16 /* VM is destroyed, softc still around */
};
struct vmm_softc {
list_node_t vmm_node;
struct vm *vmm_vm;
minor_t vmm_minor;
char vmm_name[VM_MAX_NAMELEN];
list_t vmm_devmem_list;
kcondvar_t vmm_cv;
list_t vmm_holds;
uint_t vmm_flags;
boolean_t vmm_is_open;
boolean_t vmm_autodestruct;
kmutex_t vmm_lease_lock;
list_t vmm_lease_list;
uint_t vmm_lease_blocker;
kcondvar_t vmm_lease_cv;
krwlock_t vmm_rwlock;
/* For zone specific data */
list_node_t vmm_zsd_linkage;
zone_t *vmm_zone;
vmm_zsd_t *vmm_zsd;
kstat_t *vmm_kstat_vm;
kstat_t *vmm_kstat_vcpu[VM_MAXCPU];
};
typedef struct vmm_softc vmm_softc_t;
void vmm_zsd_init(void);
void vmm_zsd_fini(void);
int vmm_zsd_add_vm(vmm_softc_t *sc);
void vmm_zsd_rem_vm(vmm_softc_t *sc);
int vmm_zone_vm_destroy(vmm_softc_t *);
#define VMM_MODULE_NAME "vmm"
#endif /* _KERNEL */
#endif /* _VMM_IMPL_H_ */
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