capabilities.h

/*
 * capabilities.h: hypervisor capabilities
 *
 * Copyright (C) 2006-2008, 2010 Red Hat, Inc.
 * Copyright (C) 2006-2008 Daniel P. Berrange
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
 *
 * Author: Daniel P. Berrange <berrange@redhat.com>
 */

#ifndef __VIR_CAPABILITIES_H
# define __VIR_CAPABILITIES_H

# include "internal.h"
# include "buf.h"
# include "cpu_conf.h"
# include "virmacaddr.h"

# include <libxml/xpath.h>

typedef struct _virCapsGuestFeature virCapsGuestFeature;
typedef virCapsGuestFeature *virCapsGuestFeaturePtr;
struct _virCapsGuestFeature {
    char *name;
    int defaultOn;
    int toggle;
};

typedef struct _virCapsGuestMachine virCapsGuestMachine;
typedef virCapsGuestMachine *virCapsGuestMachinePtr;
struct _virCapsGuestMachine {
    char *name;
    char *canonical;
};

typedef struct _virCapsGuestDomainInfo virCapsGuestDomainInfo;
typedef virCapsGuestDomainInfo *virCapsGuestDomainInfoPtr;
struct _virCapsGuestDomainInfo {
    char *emulator;
    char *loader;
    int nmachines;
    virCapsGuestMachinePtr *machines;
    time_t emulator_mtime; /* do @machines need refreshing? */
};

typedef struct _virCapsGuestDomain virCapsGuestDomain;
typedef virCapsGuestDomain *virCapsGuestDomainPtr;
struct _virCapsGuestDomain {
    char *type;
    virCapsGuestDomainInfo info;
};

typedef struct _virCapsGuestArch virCapsGuestArch;
typedef virCapsGuestArch *virCapsGuestArchptr;
struct _virCapsGuestArch {
    char *name;
    int wordsize;
    virCapsGuestDomainInfo defaultInfo;
    size_t ndomains;
    size_t ndomains_max;
    virCapsGuestDomainPtr *domains;
};

typedef struct _virCapsGuest virCapsGuest;
typedef virCapsGuest *virCapsGuestPtr;
struct _virCapsGuest {
    char *ostype;
    virCapsGuestArch arch;
    size_t nfeatures;
    size_t nfeatures_max;
    virCapsGuestFeaturePtr *features;
};

typedef struct _virCapsHostNUMACell virCapsHostNUMACell;
typedef virCapsHostNUMACell *virCapsHostNUMACellPtr;
struct _virCapsHostNUMACell {
    int num;
    int ncpus;
    int *cpus;
};

typedef struct _virCapsHostSecModel virCapsHostSecModel;
struct _virCapsHostSecModel {
    char *model;
    char *doi;
};

typedef struct _virCapsHost virCapsHost;
typedef virCapsHost *virCapsHostPtr;
struct _virCapsHost {
    char *arch;
    size_t nfeatures;
    size_t nfeatures_max;
    char **features;
    unsigned int powerMgmt;    /* Bitmask of the PM capabilities.
                                * See enum virHostPMCapability.
                                */
    int offlineMigrate;
    int liveMigrate;
    size_t nmigrateTrans;
    size_t nmigrateTrans_max;
    char **migrateTrans;
    size_t nnumaCell;
    size_t nnumaCell_max;
    virCapsHostNUMACellPtr *numaCell;
    virCapsHostSecModel secModel;
    virCPUDefPtr cpu;
    unsigned char host_uuid[VIR_UUID_BUFLEN];
};

typedef int (*virDomainDefNamespaceParse)(xmlDocPtr, xmlNodePtr,
                                          xmlXPathContextPtr, void **);
typedef void (*virDomainDefNamespaceFree)(void *);
typedef int (*virDomainDefNamespaceXMLFormat)(virBufferPtr, void *);
typedef const char *(*virDomainDefNamespaceHref)(void);

typedef struct _virDomainXMLNamespace virDomainXMLNamespace;
typedef virDomainXMLNamespace *virDomainXMLNamespacePtr;
struct _virDomainXMLNamespace {
    virDomainDefNamespaceParse parse;
    virDomainDefNamespaceFree free;
    virDomainDefNamespaceXMLFormat format;
    virDomainDefNamespaceHref href;
};

typedef struct _virCaps virCaps;
typedef virCaps* virCapsPtr;
struct _virCaps {
    virCapsHost host;
    size_t nguests;
    size_t nguests_max;
    virCapsGuestPtr *guests;
    unsigned char macPrefix[VIR_MAC_PREFIX_BUFLEN];
    unsigned int emulatorRequired : 1;
    const char *defaultDiskDriverName;
    const char *defaultDiskDriverType;
    int (*defaultConsoleTargetType)(const char *ostype);
    void *(*privateDataAllocFunc)(void);
    void (*privateDataFreeFunc)(void *);
    int (*privateDataXMLFormat)(virBufferPtr, void *);
    int (*privateDataXMLParse)(xmlXPathContextPtr, void *);
    bool hasWideScsiBus;
    const char *defaultInitPath;

    virDomainXMLNamespace ns;
};


extern virCapsPtr
virCapabilitiesNew(const char *arch,
                   int offlineMigrate,
                   int liveMigrate);

extern void
virCapabilitiesFree(virCapsPtr caps);

extern void
virCapabilitiesFreeNUMAInfo(virCapsPtr caps);

extern void
virCapabilitiesSetMacPrefix(virCapsPtr caps,
                            unsigned char *prefix);

extern void
virCapabilitiesGenerateMac(virCapsPtr caps,
                           unsigned char *mac);

extern void
virCapabilitiesSetEmulatorRequired(virCapsPtr caps);

extern unsigned int
virCapabilitiesIsEmulatorRequired(virCapsPtr caps);

extern int
virCapabilitiesAddHostFeature(virCapsPtr caps,
                              const char *name);

extern int
virCapabilitiesAddHostMigrateTransport(virCapsPtr caps,
                                       const char *name);


extern int
virCapabilitiesAddHostNUMACell(virCapsPtr caps,
                               int num,
                               int ncpus,
                               const int *cpus);


extern int
virCapabilitiesSetHostCPU(virCapsPtr caps,
                          virCPUDefPtr cpu);


extern virCapsGuestMachinePtr *
virCapabilitiesAllocMachines(const char *const *names,
                             int nnames);
extern void
virCapabilitiesFreeMachines(virCapsGuestMachinePtr *machines,
                            int nmachines);

extern virCapsGuestPtr
virCapabilitiesAddGuest(virCapsPtr caps,
                        const char *ostype,
                        const char *arch,
                        int wordsize,
                        const char *emulator,
                        const char *loader,
                        int nmachines,
                        virCapsGuestMachinePtr *machines);

extern virCapsGuestDomainPtr
virCapabilitiesAddGuestDomain(virCapsGuestPtr guest,
                              const char *hvtype,
                              const char *emulator,
                              const char *loader,
                              int nmachines,
                              virCapsGuestMachinePtr *machines);

extern virCapsGuestFeaturePtr
virCapabilitiesAddGuestFeature(virCapsGuestPtr guest,
                               const char *name,
                               int defaultOn,
                               int toggle);

extern int
virCapabilitiesSupportsGuestOSType(virCapsPtr caps,
                                   const char *ostype);
extern int
virCapabilitiesSupportsGuestArch(virCapsPtr caps,
                                 const char *ostype,
                                 const char *arch);


extern const char *
virCapabilitiesDefaultGuestArch(virCapsPtr caps,
                                const char *ostype,
                                const char *domain);
extern const char *
virCapabilitiesDefaultGuestMachine(virCapsPtr caps,
                                   const char *ostype,
                                   const char *arch,
                                   const char *domain);
extern const char *
virCapabilitiesDefaultGuestEmulator(virCapsPtr caps,
                                    const char *ostype,
                                    const char *arch,
                                    const char *domain);

extern char *
virCapabilitiesFormatXML(virCapsPtr caps);


#endif /* __VIR_CAPABILITIES_H */