/*
 * capabilities.h: hypervisor capabilities
 *
 * Copyright (C) 2006-2019 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, see
 * <http://www.gnu.org/licenses/>.
 */

#pragma once

#include "internal.h"
#include "virconftypes.h"
#include "virbuffer.h"
#include "cpu_conf.h"
#include "virarch.h"
#include "virmacaddr.h"
#include "virobject.h"
#include "virresctrl.h"

#include <libxml/xpath.h>

typedef enum {
    VIR_CAPS_GUEST_FEATURE_TYPE_PAE = 0,
    VIR_CAPS_GUEST_FEATURE_TYPE_NONPAE,
    VIR_CAPS_GUEST_FEATURE_TYPE_IA64_BE,
    VIR_CAPS_GUEST_FEATURE_TYPE_ACPI,
    VIR_CAPS_GUEST_FEATURE_TYPE_APIC,
    VIR_CAPS_GUEST_FEATURE_TYPE_CPUSELECTION,
    VIR_CAPS_GUEST_FEATURE_TYPE_DEVICEBOOT,
    VIR_CAPS_GUEST_FEATURE_TYPE_DISKSNAPSHOT,
    VIR_CAPS_GUEST_FEATURE_TYPE_HAP,

    VIR_CAPS_GUEST_FEATURE_TYPE_LAST
} virCapsGuestFeatureType;

struct _virCapsGuestFeature {
    bool present;
    virTristateSwitch defaultOn;
    virTristateBool toggle;
};

struct _virCapsGuestMachine {
    char *name;
    char *canonical;
    unsigned int maxCpus;
};

struct _virCapsGuestDomainInfo {
    char *emulator;
    char *loader;
    int nmachines;
    virCapsGuestMachinePtr *machines;
};

struct _virCapsGuestDomain {
    int type; /* virDomainVirtType */
    virCapsGuestDomainInfo info;
};

struct _virCapsGuestArch {
    virArch id;
    unsigned int wordsize;
    virCapsGuestDomainInfo defaultInfo;
    size_t ndomains;
    size_t ndomains_max;
    virCapsGuestDomainPtr *domains;
};

struct _virCapsGuest {
    int ostype;
    virCapsGuestArch arch;
    virCapsGuestFeature features[VIR_CAPS_GUEST_FEATURE_TYPE_LAST];
};

struct _virCapsHostNUMACellCPU {
    unsigned int id;
    unsigned int socket_id;
    unsigned int die_id;
    unsigned int core_id;
    virBitmapPtr siblings;
};

struct _virCapsHostNUMACellSiblingInfo {
    int node;               /* foreign NUMA node */
    unsigned int distance;  /* distance to the node */
};

struct _virCapsHostNUMACellPageInfo {
    unsigned int size;      /* page size in kibibytes */
    unsigned long long avail;           /* the size of pool */
};

struct _virCapsHostNUMACell {
    int num;
    int ncpus;
    unsigned long long mem; /* in kibibytes */
    virCapsHostNUMACellCPUPtr cpus;
    int nsiblings;
    virCapsHostNUMACellSiblingInfoPtr siblings;
    int npageinfo;
    virCapsHostNUMACellPageInfoPtr pageinfo;
};

struct _virCapsHostNUMA {
    gint refs;
    GPtrArray *cells;
};

struct _virCapsHostSecModelLabel {
    char *type;
    char *label;
};

struct _virCapsHostSecModel {
    char *model;
    char *doi;
    size_t nlabels;
    virCapsHostSecModelLabelPtr labels;
};

struct _virCapsHostCacheBank {
    unsigned int id;
    unsigned int level; /* 1=L1, 2=L2, 3=L3, etc. */
    unsigned long long size; /* B */
    virCacheType type;  /* Data, Instruction or Unified */
    virBitmapPtr cpus;  /* All CPUs that share this bank */
    size_t ncontrols;
    virResctrlInfoPerCachePtr *controls;
};

struct _virCapsHostCache {
    size_t nbanks;
    virCapsHostCacheBankPtr *banks;

    virResctrlInfoMonPtr monitor;
};

struct _virCapsHostMemBWNode {
    unsigned int id;
    virBitmapPtr cpus;  /* All CPUs that belong to this node */
    virResctrlInfoMemBWPerNode control;
};

struct _virCapsHostMemBW {
    size_t nnodes;
    virCapsHostMemBWNodePtr *nodes;

    virResctrlInfoMonPtr monitor;
};

struct _virCapsHost {
    virArch arch;
    size_t nfeatures;
    size_t nfeatures_max;
    char **features;
    unsigned int powerMgmt;    /* Bitmask of the PM capabilities.
                                * See enum virHostPMCapability.
                                */
    bool offlineMigrate;
    bool liveMigrate;
    size_t nmigrateTrans;
    size_t nmigrateTrans_max;
    char **migrateTrans;

    virCapsHostNUMAPtr numa;

    virResctrlInfoPtr resctrl;

    virCapsHostCache cache;

    virCapsHostMemBW memBW;

    size_t nsecModels;
    virCapsHostSecModelPtr secModels;

    char *netprefix;
    virCPUDefPtr cpu;
    int nPagesSize;             /* size of pagesSize array */
    unsigned int *pagesSize;    /* page sizes support on the system */
    unsigned char host_uuid[VIR_UUID_BUFLEN];
    bool iommu;
};

struct _virCapsStoragePool {
    int type;
};


struct _virCaps {
    virObject parent;

    virCapsHost host;
    size_t nguests;
    size_t nguests_max;
    virCapsGuestPtr *guests;

    size_t npools;
    size_t npools_max;
    virCapsStoragePoolPtr *pools;
};

G_DEFINE_AUTOPTR_CLEANUP_FUNC(virCaps, virObjectUnref);


struct _virCapsDomainData {
    int ostype;
    int arch;
    int domaintype; /* virDomainVirtType */
    const char *emulator;
    const char *machinetype;
};


virCapsPtr
virCapabilitiesNew(virArch hostarch,
                   bool offlineMigrate,
                   bool liveMigrate);

void
virCapabilitiesHostNUMAUnref(virCapsHostNUMAPtr caps);
void
virCapabilitiesHostNUMARef(virCapsHostNUMAPtr caps);

G_DEFINE_AUTOPTR_CLEANUP_FUNC(virCapsHostNUMA, virCapabilitiesHostNUMAUnref);

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

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

int
virCapabilitiesSetNetPrefix(virCapsPtr caps,
                            const char *prefix);

void
virCapabilitiesHostNUMAAddCell(virCapsHostNUMAPtr caps,
                               int num,
                               unsigned long long mem,
                               int ncpus,
                               virCapsHostNUMACellCPUPtr cpus,
                               int nsiblings,
                               virCapsHostNUMACellSiblingInfoPtr siblings,
                               int npageinfo,
                               virCapsHostNUMACellPageInfoPtr pageinfo);

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

void
virCapabilitiesFreeGuest(virCapsGuestPtr guest);

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

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

void
virCapabilitiesAddGuestFeature(virCapsGuestPtr guest,
                               virCapsGuestFeatureType feature);
void
virCapabilitiesAddGuestFeatureWithToggle(virCapsGuestPtr guest,
                                         virCapsGuestFeatureType feature,
                                         bool defaultOn,
                                         bool toggle);

int
virCapabilitiesAddStoragePool(virCapsPtr caps,
                              int poolType);

int
virCapabilitiesHostSecModelAddBaseLabel(virCapsHostSecModelPtr secmodel,
                                        const char *type,
                                        const char *label);

virCapsDomainDataPtr
virCapabilitiesDomainDataLookup(virCapsPtr caps,
                                int ostype,
                                virArch arch,
                                int domaintype,
                                const char *emulator,
                                const char *machinetype);

bool
virCapabilitiesDomainSupported(virCapsPtr caps,
                               int ostype,
                               virArch arch,
                               int domaintype);


void
virCapabilitiesClearHostNUMACellCPUTopology(virCapsHostNUMACellCPUPtr cpu,
                                            size_t ncpus);

char *
virCapabilitiesFormatXML(virCapsPtr caps);

virBitmapPtr virCapabilitiesHostNUMAGetCpus(virCapsHostNUMAPtr caps,
                                            virBitmapPtr nodemask);

int virCapabilitiesGetNodeInfo(virNodeInfoPtr nodeinfo);

int virCapabilitiesInitPages(virCapsPtr caps);

virCapsHostNUMAPtr virCapabilitiesHostNUMANew(void);
virCapsHostNUMAPtr virCapabilitiesHostNUMANewHost(void);

bool virCapsHostCacheBankEquals(virCapsHostCacheBankPtr a,
                                virCapsHostCacheBankPtr b);
void virCapsHostCacheBankFree(virCapsHostCacheBankPtr ptr);

int virCapabilitiesInitCaches(virCapsPtr caps);

void virCapabilitiesHostInitIOMMU(virCapsPtr caps);