FreeBSD/Linux Kernel Cross Reference
sys/contrib/xen/sysctl.h

     /******************************************************************************
      * sysctl.h
      *
      * System management operations. For use by node control stack.
      *
      * Permission is hereby granted, free of charge, to any person obtaining a copy
      * of this software and associated documentation files (the "Software"), to
      * deal in the Software without restriction, including without limitation the
      * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
     * sell copies of the Software, and to permit persons to whom the Software is
     * furnished to do so, subject to the following conditions:
     *
     * The above copyright notice and this permission notice shall be included in
     * all copies or substantial portions of the Software.
     *
     * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
     * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
     * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
     * DEALINGS IN THE SOFTWARE.
     *
     * Copyright (c) 2002-2006, K Fraser
     */
    
    #ifndef __XEN_PUBLIC_SYSCTL_H__
    #define __XEN_PUBLIC_SYSCTL_H__
    
    #if !defined(__XEN__) && !defined(__XEN_TOOLS__)
    #error "sysctl operations are intended for use by node control tools only"
    #endif
    
    #include "xen.h"
    #include "domctl.h"
    #include "physdev.h"
    
    #define XEN_SYSCTL_INTERFACE_VERSION 0x00000014
    
    /*
     * Read console content from Xen buffer ring.
     */
    /* XEN_SYSCTL_readconsole */
    struct xen_sysctl_readconsole {
        /* IN: Non-zero -> clear after reading. */
        uint8_t clear;
        /* IN: Non-zero -> start index specified by @index field. */
        uint8_t incremental;
        uint8_t pad0, pad1;
        /*
         * IN:  Start index for consuming from ring buffer (if @incremental);
         * OUT: End index after consuming from ring buffer.
         */
        uint32_t index;
        /* IN: Virtual address to write console data. */
        XEN_GUEST_HANDLE_64(char) buffer;
        /* IN: Size of buffer; OUT: Bytes written to buffer. */
        uint32_t count;
    };
    
    /* Get trace buffers machine base address */
    /* XEN_SYSCTL_tbuf_op */
    struct xen_sysctl_tbuf_op {
        /* IN variables */
    #define XEN_SYSCTL_TBUFOP_get_info     0
    #define XEN_SYSCTL_TBUFOP_set_cpu_mask 1
    #define XEN_SYSCTL_TBUFOP_set_evt_mask 2
    #define XEN_SYSCTL_TBUFOP_set_size     3
    #define XEN_SYSCTL_TBUFOP_enable       4
    #define XEN_SYSCTL_TBUFOP_disable      5
        uint32_t cmd;
        /* IN/OUT variables */
        struct xenctl_bitmap cpu_mask;
        uint32_t             evt_mask;
        /* OUT variables */
        uint64_aligned_t buffer_mfn;
        uint32_t size;  /* Also an IN variable! */
    };
    
    /*
     * Get physical information about the host machine
     */
    /* XEN_SYSCTL_physinfo */
     /* The platform supports HVM guests. */
    #define _XEN_SYSCTL_PHYSCAP_hvm          0
    #define XEN_SYSCTL_PHYSCAP_hvm           (1u<<_XEN_SYSCTL_PHYSCAP_hvm)
     /* The platform supports PV guests. */
    #define _XEN_SYSCTL_PHYSCAP_pv           1
    #define XEN_SYSCTL_PHYSCAP_pv            (1u<<_XEN_SYSCTL_PHYSCAP_pv)
     /* The platform supports direct access to I/O devices with IOMMU. */
    #define _XEN_SYSCTL_PHYSCAP_directio     2
    #define XEN_SYSCTL_PHYSCAP_directio  (1u<<_XEN_SYSCTL_PHYSCAP_directio)
    /* The platform supports Hardware Assisted Paging. */
    #define _XEN_SYSCTL_PHYSCAP_hap          3
    #define XEN_SYSCTL_PHYSCAP_hap           (1u<<_XEN_SYSCTL_PHYSCAP_hap)
    /* The platform supports software paging. */
    #define _XEN_SYSCTL_PHYSCAP_shadow       4
    #define XEN_SYSCTL_PHYSCAP_shadow        (1u<<_XEN_SYSCTL_PHYSCAP_shadow)
    /* The platform supports sharing of HAP page tables with the IOMMU. */
   #define _XEN_SYSCTL_PHYSCAP_iommu_hap_pt_share 5
   #define XEN_SYSCTL_PHYSCAP_iommu_hap_pt_share  \
       (1u << _XEN_SYSCTL_PHYSCAP_iommu_hap_pt_share)
   #define XEN_SYSCTL_PHYSCAP_vmtrace       (1u << 6)
   /* The platform supports vPMU. */
   #define XEN_SYSCTL_PHYSCAP_vpmu          (1u << 7)
   
   /* Xen supports the Grant v1 and/or v2 ABIs. */
   #define XEN_SYSCTL_PHYSCAP_gnttab_v1     (1u << 8)
   #define XEN_SYSCTL_PHYSCAP_gnttab_v2     (1u << 9)
   
   /* Max XEN_SYSCTL_PHYSCAP_* constant.  Used for ABI checking. */
   #define XEN_SYSCTL_PHYSCAP_MAX XEN_SYSCTL_PHYSCAP_gnttab_v2
   
   struct xen_sysctl_physinfo {
       uint32_t threads_per_core;
       uint32_t cores_per_socket;
       uint32_t nr_cpus;     /* # CPUs currently online */
       uint32_t max_cpu_id;  /* Largest possible CPU ID on this host */
       uint32_t nr_nodes;    /* # nodes currently online */
       uint32_t max_node_id; /* Largest possible node ID on this host */
       uint32_t cpu_khz;
       uint32_t capabilities;/* XEN_SYSCTL_PHYSCAP_??? */
       uint64_aligned_t total_pages;
       uint64_aligned_t free_pages;
       uint64_aligned_t scrub_pages;
       uint64_aligned_t outstanding_pages;
       uint64_aligned_t max_mfn; /* Largest possible MFN on this host */
       uint32_t hw_cap[8];
   };
   
   /*
    * Get the ID of the current scheduler.
    */
   /* XEN_SYSCTL_sched_id */
   struct xen_sysctl_sched_id {
       /* OUT variable */
       uint32_t sched_id;
   };
   
   /* Interface for controlling Xen software performance counters. */
   /* XEN_SYSCTL_perfc_op */
   /* Sub-operations: */
   #define XEN_SYSCTL_PERFCOP_reset 1   /* Reset all counters to zero. */
   #define XEN_SYSCTL_PERFCOP_query 2   /* Get perfctr information. */
   struct xen_sysctl_perfc_desc {
       char         name[80];             /* name of perf counter */
       uint32_t     nr_vals;              /* number of values for this counter */
   };
   typedef struct xen_sysctl_perfc_desc xen_sysctl_perfc_desc_t;
   DEFINE_XEN_GUEST_HANDLE(xen_sysctl_perfc_desc_t);
   typedef uint32_t xen_sysctl_perfc_val_t;
   DEFINE_XEN_GUEST_HANDLE(xen_sysctl_perfc_val_t);
   
   struct xen_sysctl_perfc_op {
       /* IN variables. */
       uint32_t       cmd;                /*  XEN_SYSCTL_PERFCOP_??? */
       /* OUT variables. */
       uint32_t       nr_counters;       /*  number of counters description  */
       uint32_t       nr_vals;           /*  number of values  */
       /* counter information (or NULL) */
       XEN_GUEST_HANDLE_64(xen_sysctl_perfc_desc_t) desc;
       /* counter values (or NULL) */
       XEN_GUEST_HANDLE_64(xen_sysctl_perfc_val_t) val;
   };
   
   /* XEN_SYSCTL_getdomaininfolist */
   struct xen_sysctl_getdomaininfolist {
       /* IN variables. */
       domid_t               first_domain;
       uint32_t              max_domains;
       XEN_GUEST_HANDLE_64(xen_domctl_getdomaininfo_t) buffer;
       /* OUT variables. */
       uint32_t              num_domains;
   };
   
   /* Inject debug keys into Xen. */
   /* XEN_SYSCTL_debug_keys */
   struct xen_sysctl_debug_keys {
       /* IN variables. */
       XEN_GUEST_HANDLE_64(const_char) keys;
       uint32_t nr_keys;
   };
   
   /* Get physical CPU information. */
   /* XEN_SYSCTL_getcpuinfo */
   struct xen_sysctl_cpuinfo {
       uint64_aligned_t idletime;
   };
   typedef struct xen_sysctl_cpuinfo xen_sysctl_cpuinfo_t;
   DEFINE_XEN_GUEST_HANDLE(xen_sysctl_cpuinfo_t);
   struct xen_sysctl_getcpuinfo {
       /* IN variables. */
       uint32_t max_cpus;
       XEN_GUEST_HANDLE_64(xen_sysctl_cpuinfo_t) info;
       /* OUT variables. */
       uint32_t nr_cpus;
   };
   
   /* XEN_SYSCTL_availheap */
   struct xen_sysctl_availheap {
       /* IN variables. */
       uint32_t min_bitwidth;  /* Smallest address width (zero if don't care). */
       uint32_t max_bitwidth;  /* Largest address width (zero if don't care). */
       int32_t  node;          /* NUMA node of interest (-1 for all nodes). */
       /* OUT variables. */
       uint64_aligned_t avail_bytes;/* Bytes available in the specified region. */
   };
   
   /* XEN_SYSCTL_get_pmstat */
   struct pm_px_val {
       uint64_aligned_t freq;        /* Px core frequency */
       uint64_aligned_t residency;   /* Px residency time */
       uint64_aligned_t count;       /* Px transition count */
   };
   typedef struct pm_px_val pm_px_val_t;
   DEFINE_XEN_GUEST_HANDLE(pm_px_val_t);
   
   struct pm_px_stat {
       uint8_t total;        /* total Px states */
       uint8_t usable;       /* usable Px states */
       uint8_t last;         /* last Px state */
       uint8_t cur;          /* current Px state */
       XEN_GUEST_HANDLE_64(uint64) trans_pt;   /* Px transition table */
       XEN_GUEST_HANDLE_64(pm_px_val_t) pt;
   };
   
   struct pm_cx_stat {
       uint32_t nr;    /* entry nr in triggers & residencies, including C0 */
       uint32_t last;  /* last Cx state */
       uint64_aligned_t idle_time;                 /* idle time from boot */
       XEN_GUEST_HANDLE_64(uint64) triggers;    /* Cx trigger counts */
       XEN_GUEST_HANDLE_64(uint64) residencies; /* Cx residencies */
       uint32_t nr_pc;                          /* entry nr in pc[] */
       uint32_t nr_cc;                          /* entry nr in cc[] */
       /*
        * These two arrays may (and generally will) have unused slots; slots not
        * having a corresponding hardware register will not be written by the
        * hypervisor. It is therefore up to the caller to put a suitable sentinel
        * into all slots before invoking the function.
        * Indexing is 1-biased (PC1/CC1 being at index 0).
        */
       XEN_GUEST_HANDLE_64(uint64) pc;
       XEN_GUEST_HANDLE_64(uint64) cc;
   };
   
   struct xen_sysctl_get_pmstat {
   #define PMSTAT_CATEGORY_MASK 0xf0
   #define PMSTAT_PX            0x10
   #define PMSTAT_CX            0x20
   #define PMSTAT_get_max_px    (PMSTAT_PX | 0x1)
   #define PMSTAT_get_pxstat    (PMSTAT_PX | 0x2)
   #define PMSTAT_reset_pxstat  (PMSTAT_PX | 0x3)
   #define PMSTAT_get_max_cx    (PMSTAT_CX | 0x1)
   #define PMSTAT_get_cxstat    (PMSTAT_CX | 0x2)
   #define PMSTAT_reset_cxstat  (PMSTAT_CX | 0x3)
       uint32_t type;
       uint32_t cpuid;
       union {
           struct pm_px_stat getpx;
           struct pm_cx_stat getcx;
           /* other struct for tx, etc */
       } u;
   };
   
   /* XEN_SYSCTL_cpu_hotplug */
   struct xen_sysctl_cpu_hotplug {
       /* IN variables */
       uint32_t cpu;   /* Physical cpu. */
   
       /* Single CPU enable/disable. */
   #define XEN_SYSCTL_CPU_HOTPLUG_ONLINE  0
   #define XEN_SYSCTL_CPU_HOTPLUG_OFFLINE 1
   
       /*
        * SMT enable/disable.
        *
        * These two ops loop over all present CPUs, and either online or offline
        * every non-primary sibling thread (those with a thread id which is not
        * 0).  This behaviour is chosen to simplify the implementation.
        *
        * They are intended as a shorthand for identifying and feeding the cpu
        * numbers individually to HOTPLUG_{ON,OFF}LINE.
        *
        * These are not expected to be used in conjunction with debugging options
        * such as `maxcpus=` or when other manual configuration of offline cpus
        * is in use.
        */
   #define XEN_SYSCTL_CPU_HOTPLUG_SMT_ENABLE  2
   #define XEN_SYSCTL_CPU_HOTPLUG_SMT_DISABLE 3
       uint32_t op;    /* hotplug opcode */
   };
   
   /*
    * Get/set xen power management, include
    * 1. cpufreq governors and related parameters
    */
   /* XEN_SYSCTL_pm_op */
   struct xen_userspace {
       uint32_t scaling_setspeed;
   };
   
   struct xen_ondemand {
       uint32_t sampling_rate_max;
       uint32_t sampling_rate_min;
   
       uint32_t sampling_rate;
       uint32_t up_threshold;
   };
   
   /*
    * cpufreq para name of this structure named
    * same as sysfs file name of native linux
    */
   #define CPUFREQ_NAME_LEN 16
   struct xen_get_cpufreq_para {
       /* IN/OUT variable */
       uint32_t cpu_num;
       uint32_t freq_num;
       uint32_t gov_num;
   
       /* for all governors */
       /* OUT variable */
       XEN_GUEST_HANDLE_64(uint32) affected_cpus;
       XEN_GUEST_HANDLE_64(uint32) scaling_available_frequencies;
       XEN_GUEST_HANDLE_64(char)   scaling_available_governors;
       char scaling_driver[CPUFREQ_NAME_LEN];
   
       uint32_t cpuinfo_cur_freq;
       uint32_t cpuinfo_max_freq;
       uint32_t cpuinfo_min_freq;
       uint32_t scaling_cur_freq;
   
       char scaling_governor[CPUFREQ_NAME_LEN];
       uint32_t scaling_max_freq;
       uint32_t scaling_min_freq;
   
       /* for specific governor */
       union {
           struct  xen_userspace userspace;
           struct  xen_ondemand ondemand;
       } u;
   
       int32_t turbo_enabled;
   };
   
   struct xen_set_cpufreq_gov {
       char scaling_governor[CPUFREQ_NAME_LEN];
   };
   
   struct xen_set_cpufreq_para {
       #define SCALING_MAX_FREQ           1
       #define SCALING_MIN_FREQ           2
       #define SCALING_SETSPEED           3
       #define SAMPLING_RATE              4
       #define UP_THRESHOLD               5
   
       uint32_t ctrl_type;
       uint32_t ctrl_value;
   };
   
   struct xen_sysctl_pm_op {
       #define PM_PARA_CATEGORY_MASK      0xf0
       #define CPUFREQ_PARA               0x10
   
       /* cpufreq command type */
       #define GET_CPUFREQ_PARA           (CPUFREQ_PARA | 0x01)
       #define SET_CPUFREQ_GOV            (CPUFREQ_PARA | 0x02)
       #define SET_CPUFREQ_PARA           (CPUFREQ_PARA | 0x03)
       #define GET_CPUFREQ_AVGFREQ        (CPUFREQ_PARA | 0x04)
   
       /* set/reset scheduler power saving option */
       #define XEN_SYSCTL_pm_op_set_sched_opt_smt    0x21
   
       /*
        * cpuidle max C-state and max C-sub-state access command:
        * Set cpuid to 0 for max C-state.
        * Set cpuid to 1 for max C-sub-state.
        */
       #define XEN_SYSCTL_pm_op_get_max_cstate       0x22
       #define XEN_SYSCTL_pm_op_set_max_cstate       0x23
   
       /* set scheduler migration cost value */
       #define XEN_SYSCTL_pm_op_set_vcpu_migration_delay   0x24
       #define XEN_SYSCTL_pm_op_get_vcpu_migration_delay   0x25
   
       /* enable/disable turbo mode when in dbs governor */
       #define XEN_SYSCTL_pm_op_enable_turbo               0x26
       #define XEN_SYSCTL_pm_op_disable_turbo              0x27
   
       uint32_t cmd;
       uint32_t cpuid;
       union {
           struct xen_get_cpufreq_para get_para;
           struct xen_set_cpufreq_gov  set_gov;
           struct xen_set_cpufreq_para set_para;
           uint64_aligned_t get_avgfreq;
           uint32_t                    set_sched_opt_smt;
   #define XEN_SYSCTL_CX_UNLIMITED 0xffffffff
           uint32_t                    get_max_cstate;
           uint32_t                    set_max_cstate;
       } u;
   };
   
   /* XEN_SYSCTL_page_offline_op */
   struct xen_sysctl_page_offline_op {
       /* IN: range of page to be offlined */
   #define sysctl_page_offline     1
   #define sysctl_page_online      2
   #define sysctl_query_page_offline  3
       uint32_t cmd;
       uint32_t start;
       uint32_t end;
       /* OUT: result of page offline request */
       /*
        * bit 0~15: result flags
        * bit 16~31: owner
        */
       XEN_GUEST_HANDLE(uint32) status;
   };
   
   #define PG_OFFLINE_STATUS_MASK    (0xFFUL)
   
   /* The result is invalid, i.e. HV does not handle it */
   #define PG_OFFLINE_INVALID   (0x1UL << 0)
   
   #define PG_OFFLINE_OFFLINED  (0x1UL << 1)
   #define PG_OFFLINE_PENDING   (0x1UL << 2)
   #define PG_OFFLINE_FAILED    (0x1UL << 3)
   #define PG_OFFLINE_AGAIN     (0x1UL << 4)
   
   #define PG_ONLINE_FAILED     PG_OFFLINE_FAILED
   #define PG_ONLINE_ONLINED    PG_OFFLINE_OFFLINED
   
   #define PG_OFFLINE_STATUS_OFFLINED              (0x1UL << 1)
   #define PG_OFFLINE_STATUS_ONLINE                (0x1UL << 2)
   #define PG_OFFLINE_STATUS_OFFLINE_PENDING       (0x1UL << 3)
   #define PG_OFFLINE_STATUS_BROKEN                (0x1UL << 4)
   
   #define PG_OFFLINE_MISC_MASK    (0xFFUL << 4)
   
   /* valid when PG_OFFLINE_FAILED or PG_OFFLINE_PENDING */
   #define PG_OFFLINE_XENPAGE   (0x1UL << 8)
   #define PG_OFFLINE_DOM0PAGE  (0x1UL << 9)
   #define PG_OFFLINE_ANONYMOUS (0x1UL << 10)
   #define PG_OFFLINE_NOT_CONV_RAM   (0x1UL << 11)
   #define PG_OFFLINE_OWNED     (0x1UL << 12)
   
   #define PG_OFFLINE_BROKEN    (0x1UL << 13)
   #define PG_ONLINE_BROKEN     PG_OFFLINE_BROKEN
   
   #define PG_OFFLINE_OWNER_SHIFT 16
   
   /* XEN_SYSCTL_lockprof_op */
   /* Sub-operations: */
   #define XEN_SYSCTL_LOCKPROF_reset 1   /* Reset all profile data to zero. */
   #define XEN_SYSCTL_LOCKPROF_query 2   /* Get lock profile information. */
   /* Record-type: */
   #define LOCKPROF_TYPE_GLOBAL      0   /* global lock, idx meaningless */
   #define LOCKPROF_TYPE_PERDOM      1   /* per-domain lock, idx is domid */
   #define LOCKPROF_TYPE_N           2   /* number of types */
   struct xen_sysctl_lockprof_data {
       char     name[40];     /* lock name (may include up to 2 %d specifiers) */
       int32_t  type;         /* LOCKPROF_TYPE_??? */
       int32_t  idx;          /* index (e.g. domain id) */
       uint64_aligned_t lock_cnt;     /* # of locking succeeded */
       uint64_aligned_t block_cnt;    /* # of wait for lock */
       uint64_aligned_t lock_time;    /* nsecs lock held */
       uint64_aligned_t block_time;   /* nsecs waited for lock */
   };
   typedef struct xen_sysctl_lockprof_data xen_sysctl_lockprof_data_t;
   DEFINE_XEN_GUEST_HANDLE(xen_sysctl_lockprof_data_t);
   struct xen_sysctl_lockprof_op {
       /* IN variables. */
       uint32_t       cmd;               /* XEN_SYSCTL_LOCKPROF_??? */
       uint32_t       max_elem;          /* size of output buffer */
       /* OUT variables (query only). */
       uint32_t       nr_elem;           /* number of elements available */
       uint64_aligned_t time;            /* nsecs of profile measurement */
       /* profile information (or NULL) */
       XEN_GUEST_HANDLE_64(xen_sysctl_lockprof_data_t) data;
   };
   
   /* XEN_SYSCTL_cputopoinfo */
   #define XEN_INVALID_CORE_ID     (~0U)
   #define XEN_INVALID_SOCKET_ID   (~0U)
   #define XEN_INVALID_NODE_ID     (~0U)
   
   struct xen_sysctl_cputopo {
       uint32_t core;
       uint32_t socket;
       uint32_t node;
   };
   typedef struct xen_sysctl_cputopo xen_sysctl_cputopo_t;
   DEFINE_XEN_GUEST_HANDLE(xen_sysctl_cputopo_t);
   
   /*
    * IN:
    *  - a NULL 'cputopo' handle is a request for maximun 'num_cpus'.
    *  - otherwise it's the number of entries in 'cputopo'
    *
    * OUT:
    *  - If 'num_cpus' is less than the number Xen wants to write but the handle
    *    handle is not a NULL one, partial data gets returned and 'num_cpus' gets
    *    updated to reflect the intended number.
    *  - Otherwise, 'num_cpus' shall indicate the number of entries written, which
    *    may be less than the input value.
    */
   struct xen_sysctl_cputopoinfo {
       uint32_t num_cpus;
       XEN_GUEST_HANDLE_64(xen_sysctl_cputopo_t) cputopo;
   };
   
   /* XEN_SYSCTL_numainfo */
   #define XEN_INVALID_MEM_SZ     (~0U)
   #define XEN_INVALID_NODE_DIST  (~0U)
   
   struct xen_sysctl_meminfo {
       uint64_t memsize;
       uint64_t memfree;
   };
   typedef struct xen_sysctl_meminfo xen_sysctl_meminfo_t;
   DEFINE_XEN_GUEST_HANDLE(xen_sysctl_meminfo_t);
   
   /*
    * IN:
    *  - Both 'meminfo' and 'distance' handles being null is a request
    *    for maximum value of 'num_nodes'.
    *  - Otherwise it's the number of entries in 'meminfo' and square root
    *    of number of entries in 'distance' (when corresponding handle is
    *    non-null)
    *
    * OUT:
    *  - If 'num_nodes' is less than the number Xen wants to write but either
    *    handle is not a NULL one, partial data gets returned and 'num_nodes'
    *    gets updated to reflect the intended number.
    *  - Otherwise, 'num_nodes' shall indicate the number of entries written, which
    *    may be less than the input value.
    */
   
   struct xen_sysctl_numainfo {
       uint32_t num_nodes;
   
       XEN_GUEST_HANDLE_64(xen_sysctl_meminfo_t) meminfo;
   
       /*
        * Distance between nodes 'i' and 'j' is stored in index 'i*N + j',
        * where N is the number of nodes that will be returned in 'num_nodes'
        * (i.e. not 'num_nodes' provided by the caller)
        */
       XEN_GUEST_HANDLE_64(uint32) distance;
   };
   
   /* XEN_SYSCTL_cpupool_op */
   #define XEN_SYSCTL_CPUPOOL_OP_CREATE                1  /* C */
   #define XEN_SYSCTL_CPUPOOL_OP_DESTROY               2  /* D */
   #define XEN_SYSCTL_CPUPOOL_OP_INFO                  3  /* I */
   #define XEN_SYSCTL_CPUPOOL_OP_ADDCPU                4  /* A */
   #define XEN_SYSCTL_CPUPOOL_OP_RMCPU                 5  /* R */
   #define XEN_SYSCTL_CPUPOOL_OP_MOVEDOMAIN            6  /* M */
   #define XEN_SYSCTL_CPUPOOL_OP_FREEINFO              7  /* F */
   #define XEN_SYSCTL_CPUPOOL_PAR_ANY     0xFFFFFFFF
   struct xen_sysctl_cpupool_op {
       uint32_t op;          /* IN */
       uint32_t cpupool_id;  /* IN: CDIARM OUT: CI */
       uint32_t sched_id;    /* IN: C      OUT: I  */
       uint32_t domid;       /* IN: M              */
       uint32_t cpu;         /* IN: AR             */
       uint32_t n_dom;       /*            OUT: I  */
       struct xenctl_bitmap cpumap; /*     OUT: IF */
   };
   
   /*
    * Error return values of cpupool operations:
    *
    * -EADDRINUSE:
    *  XEN_SYSCTL_CPUPOOL_OP_RMCPU: A vcpu is temporarily pinned to the cpu
    *    which is to be removed from a cpupool.
    * -EADDRNOTAVAIL:
    *  XEN_SYSCTL_CPUPOOL_OP_ADDCPU, XEN_SYSCTL_CPUPOOL_OP_RMCPU: A previous
    *    request to remove a cpu from a cpupool was terminated with -EAGAIN
    *    and has not been retried using the same parameters.
    * -EAGAIN:
    *  XEN_SYSCTL_CPUPOOL_OP_RMCPU: The cpu can't be removed from the cpupool
    *    as it is active in the hypervisor. A retry will succeed soon.
    * -EBUSY:
    *  XEN_SYSCTL_CPUPOOL_OP_DESTROY, XEN_SYSCTL_CPUPOOL_OP_RMCPU: A cpupool
    *    can't be destroyed or the last cpu can't be removed as there is still
    *    a running domain in that cpupool.
    * -EEXIST:
    *  XEN_SYSCTL_CPUPOOL_OP_CREATE: A cpupool_id was specified and is already
    *    existing.
    * -EINVAL:
    *  XEN_SYSCTL_CPUPOOL_OP_ADDCPU, XEN_SYSCTL_CPUPOOL_OP_RMCPU: An illegal
    *    cpu was specified (cpu does not exist).
    *  XEN_SYSCTL_CPUPOOL_OP_MOVEDOMAIN: An illegal domain was specified
    *    (domain id illegal or not suitable for operation).
    * -ENODEV:
    *  XEN_SYSCTL_CPUPOOL_OP_ADDCPU, XEN_SYSCTL_CPUPOOL_OP_RMCPU: The specified
    *    cpu is either not free (add) or not member of the specified cpupool
    *    (remove).
    * -ENOENT:
    *  all: The cpupool with the specified cpupool_id doesn't exist.
    *
    * Some common error return values like -ENOMEM and -EFAULT are possible for
    * all the operations.
    */
   
   #define ARINC653_MAX_DOMAINS_PER_SCHEDULE   64
   /*
    * This structure is used to pass a new ARINC653 schedule from a
    * privileged domain (ie dom0) to Xen.
    */
   struct xen_sysctl_arinc653_schedule {
       /* major_frame holds the time for the new schedule's major frame
        * in nanoseconds. */
       uint64_aligned_t     major_frame;
       /* num_sched_entries holds how many of the entries in the
        * sched_entries[] array are valid. */
       uint8_t     num_sched_entries;
       /* The sched_entries array holds the actual schedule entries. */
       struct {
           /* dom_handle must match a domain's UUID */
           xen_domain_handle_t dom_handle;
           /* If a domain has multiple VCPUs, vcpu_id specifies which one
            * this schedule entry applies to. It should be set to 0 if
            * there is only one VCPU for the domain. */
           unsigned int vcpu_id;
           /* runtime specifies the amount of time that should be allocated
            * to this VCPU per major frame. It is specified in nanoseconds */
           uint64_aligned_t runtime;
       } sched_entries[ARINC653_MAX_DOMAINS_PER_SCHEDULE];
   };
   typedef struct xen_sysctl_arinc653_schedule xen_sysctl_arinc653_schedule_t;
   DEFINE_XEN_GUEST_HANDLE(xen_sysctl_arinc653_schedule_t);
   
   /*
    * Valid range for context switch rate limit (in microseconds).
    * Applicable to Credit and Credit2 schedulers.
    */
   #define XEN_SYSCTL_SCHED_RATELIMIT_MAX 500000
   #define XEN_SYSCTL_SCHED_RATELIMIT_MIN 100
   
   struct xen_sysctl_credit_schedule {
       /* Length of timeslice in milliseconds */
   #define XEN_SYSCTL_CSCHED_TSLICE_MAX 1000
   #define XEN_SYSCTL_CSCHED_TSLICE_MIN 1
       unsigned tslice_ms;
       unsigned ratelimit_us;
       /*
        * How long we consider a vCPU to be cache-hot on the
        * CPU where it has run (max 100ms, in microseconds)
       */
   #define XEN_SYSCTL_CSCHED_MGR_DLY_MAX_US (100 * 1000)
       unsigned vcpu_migr_delay_us;
   };
   
   struct xen_sysctl_credit2_schedule {
       unsigned ratelimit_us;
   };
   
   /* XEN_SYSCTL_scheduler_op */
   /* Set or get info? */
   #define XEN_SYSCTL_SCHEDOP_putinfo 0
   #define XEN_SYSCTL_SCHEDOP_getinfo 1
   struct xen_sysctl_scheduler_op {
       uint32_t cpupool_id; /* Cpupool whose scheduler is to be targetted. */
       uint32_t sched_id;   /* XEN_SCHEDULER_* (domctl.h) */
       uint32_t cmd;        /* XEN_SYSCTL_SCHEDOP_* */
       union {
           struct xen_sysctl_sched_arinc653 {
               XEN_GUEST_HANDLE_64(xen_sysctl_arinc653_schedule_t) schedule;
           } sched_arinc653;
           struct xen_sysctl_credit_schedule sched_credit;
           struct xen_sysctl_credit2_schedule sched_credit2;
       } u;
   };
   
   /*
    * Output format of gcov data:
    *
    * XEN_GCOV_FORMAT_MAGIC XEN_GCOV_RECORD ... XEN_GCOV_RECORD
    *
    * That is, one magic number followed by 0 or more record.
    *
    * The magic number is stored as an uint32_t field.
    *
    * The record is packed and variable in length. It has the form:
    *
    *  filename: a NULL terminated path name extracted from gcov, used to
    *            create the name of gcda file.
    *  size:     a uint32_t field indicating the size of the payload, the
    *            unit is byte.
    *  payload:  the actual payload, length is `size' bytes.
    *
    * Userspace tool will split the record to different files.
    */
   
   #define XEN_GCOV_FORMAT_MAGIC    0x58434f56 /* XCOV */
   
   /*
    * Ouput format of LLVM coverage data is just a raw stream, as would be
    * written by the compiler_rt run time library into a .profraw file. There
    * are no special Xen tags or delimiters because none are needed.
    */
   
   #define XEN_SYSCTL_COVERAGE_get_size 0 /* Get total size of output data */
   #define XEN_SYSCTL_COVERAGE_read     1 /* Read output data */
   #define XEN_SYSCTL_COVERAGE_reset    2 /* Reset all counters */
   
   struct xen_sysctl_coverage_op {
       uint32_t cmd;
       uint32_t size; /* IN/OUT: size of the buffer  */
       XEN_GUEST_HANDLE_64(char) buffer; /* OUT */
   };
   
   #define XEN_SYSCTL_PSR_CMT_get_total_rmid            0
   #define XEN_SYSCTL_PSR_CMT_get_l3_upscaling_factor   1
   /* The L3 cache size is returned in KB unit */
   #define XEN_SYSCTL_PSR_CMT_get_l3_cache_size         2
   #define XEN_SYSCTL_PSR_CMT_enabled                   3
   #define XEN_SYSCTL_PSR_CMT_get_l3_event_mask         4
   struct xen_sysctl_psr_cmt_op {
       uint32_t cmd;       /* IN: XEN_SYSCTL_PSR_CMT_* */
       uint32_t flags;     /* padding variable, may be extended for future use */
       union {
           uint64_t data;  /* OUT */
           struct {
               uint32_t cpu;   /* IN */
               uint32_t rsvd;
           } l3_cache;
       } u;
   };
   
   /* XEN_SYSCTL_pcitopoinfo */
   #define XEN_INVALID_DEV (XEN_INVALID_NODE_ID - 1)
   struct xen_sysctl_pcitopoinfo {
       /*
        * IN: Number of elements in 'devs' and 'nodes' arrays.
        * OUT: Number of processed elements of those arrays.
        */
       uint32_t num_devs;
   
       /* IN: list of devices for which node IDs are requested. */
       XEN_GUEST_HANDLE_64(physdev_pci_device_t) devs;
   
       /*
        * OUT: node identifier for each device.
        * If information for a particular device is not available then
        * corresponding entry will be set to XEN_INVALID_NODE_ID. If
        * device is not known to the hypervisor then XEN_INVALID_DEV
        * will be provided.
        */
       XEN_GUEST_HANDLE_64(uint32) nodes;
   };
   
   #define XEN_SYSCTL_PSR_get_l3_info               0
   #define XEN_SYSCTL_PSR_get_l2_info               1
   #define XEN_SYSCTL_PSR_get_mba_info              2
   struct xen_sysctl_psr_alloc {
       uint32_t cmd;       /* IN: XEN_SYSCTL_PSR_* */
       uint32_t target;    /* IN */
       union {
           struct {
               uint32_t cbm_len;   /* OUT: CBM length */
               uint32_t cos_max;   /* OUT: Maximum COS */
   #define XEN_SYSCTL_PSR_CAT_L3_CDP       (1u << 0)
               uint32_t flags;     /* OUT: CAT flags */
           } cat_info;
   
           struct {
               uint32_t thrtl_max; /* OUT: Maximum throttle */
               uint32_t cos_max;   /* OUT: Maximum COS */
   #define XEN_SYSCTL_PSR_MBA_LINEAR      (1u << 0)
               uint32_t flags;     /* OUT: MBA flags */
           } mba_info;
       } u;
   };
   
   /*
    * XEN_SYSCTL_get_cpu_levelling_caps (x86 specific)
    *
    * Return hardware capabilities concerning masking or faulting of the cpuid
    * instruction for PV guests.
    */
   struct xen_sysctl_cpu_levelling_caps {
   #define XEN_SYSCTL_CPU_LEVELCAP_faulting    (1ul <<  0) /* CPUID faulting    */
   #define XEN_SYSCTL_CPU_LEVELCAP_ecx         (1ul <<  1) /* 0x00000001.ecx    */
   #define XEN_SYSCTL_CPU_LEVELCAP_edx         (1ul <<  2) /* 0x00000001.edx    */
   #define XEN_SYSCTL_CPU_LEVELCAP_extd_ecx    (1ul <<  3) /* 0x80000001.ecx    */
   #define XEN_SYSCTL_CPU_LEVELCAP_extd_edx    (1ul <<  4) /* 0x80000001.edx    */
   #define XEN_SYSCTL_CPU_LEVELCAP_xsave_eax   (1ul <<  5) /* 0x0000000D:1.eax  */
   #define XEN_SYSCTL_CPU_LEVELCAP_thermal_ecx (1ul <<  6) /* 0x00000006.ecx    */
   #define XEN_SYSCTL_CPU_LEVELCAP_l7s0_eax    (1ul <<  7) /* 0x00000007:0.eax  */
   #define XEN_SYSCTL_CPU_LEVELCAP_l7s0_ebx    (1ul <<  8) /* 0x00000007:0.ebx  */
       uint32_t caps;
   };
   
   /*
    * XEN_SYSCTL_get_cpu_featureset (x86 specific)
    *
    * Return information about featuresets available on this host.
    *  -  Raw: The real cpuid values.
    *  - Host: The values Xen is using, (after command line overrides, etc).
    *  -   PV: Maximum set of features which can be given to a PV guest.
    *  -  HVM: Maximum set of features which can be given to a HVM guest.
    * May fail with -EOPNOTSUPP if querying for PV or HVM data when support is
    * compiled out of Xen.
    */
   struct xen_sysctl_cpu_featureset {
   #define XEN_SYSCTL_cpu_featureset_raw      0
   #define XEN_SYSCTL_cpu_featureset_host     1
   #define XEN_SYSCTL_cpu_featureset_pv       2
   #define XEN_SYSCTL_cpu_featureset_hvm      3
       uint32_t index;       /* IN: Which featureset to query? */
       uint32_t nr_features; /* IN/OUT: Number of entries in/written to
                              * 'features', or the maximum number of features if
                              * the guest handle is NULL.  NB. All featuresets
                              * come from the same numberspace, so have the same
                              * maximum length. */
       XEN_GUEST_HANDLE_64(uint32) features; /* OUT: */
   };
   
   /*
    * XEN_SYSCTL_LIVEPATCH_op
    *
    * Refer to the docs/unstable/misc/livepatch.markdown
    * for the design details of this hypercall.
    *
    * There are four sub-ops:
    *  XEN_SYSCTL_LIVEPATCH_UPLOAD (0)
    *  XEN_SYSCTL_LIVEPATCH_GET (1)
    *  XEN_SYSCTL_LIVEPATCH_LIST (2)
    *  XEN_SYSCTL_LIVEPATCH_ACTION (3)
    *
    * The normal sequence of sub-ops is to:
    *  1) XEN_SYSCTL_LIVEPATCH_UPLOAD to upload the payload. If errors STOP.
    *  2) XEN_SYSCTL_LIVEPATCH_GET to check the `->rc`. If -XEN_EAGAIN spin.
    *     If zero go to next step.
    *  3) XEN_SYSCTL_LIVEPATCH_ACTION with LIVEPATCH_ACTION_APPLY to apply the patch.
    *  4) XEN_SYSCTL_LIVEPATCH_GET to check the `->rc`. If in -XEN_EAGAIN spin.
    *     If zero exit with success.
    */
   
   #define LIVEPATCH_PAYLOAD_VERSION 2
   /*
    * .livepatch.funcs structure layout defined in the `Payload format`
    * section in the Live Patch design document.
    *
    * We guard this with __XEN__ as toolstacks SHOULD not use it.
    */
   #ifdef __XEN__
   #define LIVEPATCH_OPAQUE_SIZE 31
   
   struct livepatch_expectation {
       uint8_t enabled : 1;
       uint8_t len : 5;        /* Length of data up to LIVEPATCH_OPAQUE_SIZE
                                  (5 bits is enough for now) */
       uint8_t rsv : 2;        /* Reserved. Zero value */
       uint8_t data[LIVEPATCH_OPAQUE_SIZE]; /* Same size as opaque[] buffer of
                                               struct livepatch_func. This is the
                                               max number of bytes to be patched */
   };
   typedef struct livepatch_expectation livepatch_expectation_t;
   
   typedef enum livepatch_func_state {
       LIVEPATCH_FUNC_NOT_APPLIED,
       LIVEPATCH_FUNC_APPLIED
   } livepatch_func_state_t;
   
   struct livepatch_func {
       const char *name;       /* Name of function to be patched. */
       void *new_addr;
       void *old_addr;
       uint32_t new_size;
       uint32_t old_size;
       uint8_t version;        /* MUST be LIVEPATCH_PAYLOAD_VERSION. */
       uint8_t opaque[LIVEPATCH_OPAQUE_SIZE];
       uint8_t applied;
       uint8_t _pad[7];
       livepatch_expectation_t expect;
   };
   typedef struct livepatch_func livepatch_func_t;
   #endif
   
   /*
    * Structure describing an ELF payload. Uniquely identifies the
    * payload. Should be human readable.
    * Recommended length is upto XEN_LIVEPATCH_NAME_SIZE.
    * Includes the NUL terminator.
    */
   #define XEN_LIVEPATCH_NAME_SIZE 128
   struct xen_livepatch_name {
       XEN_GUEST_HANDLE_64(char) name;         /* IN: pointer to name. */
       uint16_t size;                          /* IN: size of name. May be upto
                                                  XEN_LIVEPATCH_NAME_SIZE. */
       uint16_t pad[3];                        /* IN: MUST be zero. */
   };
   
   /*
    * Upload a payload to the hypervisor. The payload is verified
    * against basic checks and if there are any issues the proper return code
    * will be returned. The payload is not applied at this time - that is
    * controlled by XEN_SYSCTL_LIVEPATCH_ACTION.
    *
    * The return value is zero if the payload was succesfully uploaded.
    * Otherwise an EXX return value is provided. Duplicate `name` are not
    * supported.
    *
    * The payload at this point is verified against basic checks.
    *
    * The `payload` is the ELF payload as mentioned in the `Payload format`
    * section in the Live Patch design document.
    */
   #define XEN_SYSCTL_LIVEPATCH_UPLOAD 0
   struct xen_sysctl_livepatch_upload {
       struct xen_livepatch_name name;         /* IN, name of the patch. */
       uint64_t size;                          /* IN, size of the ELF file. */
       XEN_GUEST_HANDLE_64(uint8) payload;     /* IN, the ELF file. */
   };
   
   /*
    * Retrieve an status of an specific payload.
    *
    * Upon completion the `struct xen_livepatch_status` is updated.
    *
    * The return value is zero on success and XEN_EXX on failure. This operation
    * is synchronous and does not require preemption.
    */
   #define XEN_SYSCTL_LIVEPATCH_GET 1
   
   struct xen_livepatch_status {
   #define LIVEPATCH_STATE_CHECKED      1
   #define LIVEPATCH_STATE_APPLIED      2
       uint32_t state;                /* OUT: LIVEPATCH_STATE_*. */
       int32_t rc;                    /* OUT: 0 if no error, otherwise -XEN_EXX. */
   };
   typedef struct xen_livepatch_status xen_livepatch_status_t;
   DEFINE_XEN_GUEST_HANDLE(xen_livepatch_status_t);
   
   struct xen_sysctl_livepatch_get {
       struct xen_livepatch_name name;         /* IN, name of the payload. */
       struct xen_livepatch_status status;     /* IN/OUT, state of it. */
   };
   
   /*
    * Retrieve an array of abbreviated status, names and metadata of payloads that
    * are loaded in the hypervisor.
    *
    * If the hypercall returns an positive number, it is the number (up to `nr`)
    * of the payloads returned, along with `nr` updated with the number of remaining
    * payloads, `version` updated (it may be the same across hypercalls. If it varies
    * the data is stale and further calls could fail), `name_total_size` and
    * `metadata_total_size` containing total sizes of transferred data for both the
    * arrays.
    * The `status`, `name`, `len`, `metadata` and `metadata_len` are updated at their
    * designed index value (`idx`) with the returned value of data.
    *
    * If the hypercall returns E2BIG the `nr` is too big and should be
    * lowered. The upper limit of `nr` is left to the implemention.
    *
    * Note that due to the asynchronous nature of hypercalls the domain might have
    * added or removed the number of payloads making this information stale. It is
    * the responsibility of the toolstack to use the `version` field to check
    * between each invocation. if the version differs it should discard the stale
    * data and start from scratch. It is OK for the toolstack to use the new
    * `version` field.
    */
   #define XEN_SYSCTL_LIVEPATCH_LIST 2
   struct xen_sysctl_livepatch_list {
       uint32_t version;                       /* OUT: Hypervisor stamps value.
                                                  If varies between calls, we are
                                                * getting stale data. */
       uint32_t idx;                           /* IN: Index into hypervisor list. */
       uint32_t nr;                            /* IN: How many status, name, and len
                                                  should fill out. Can be zero to get
                                                  amount of payloads and version.
                                                  OUT: How many payloads left. */
       uint32_t pad;                           /* IN: Must be zero. */
       uint32_t name_total_size;               /* OUT: Total size of all transfer names */
       uint32_t metadata_total_size;           /* OUT: Total size of all transfer metadata */
       XEN_GUEST_HANDLE_64(xen_livepatch_status_t) status;  /* OUT. Must have enough
                                                  space allocate for nr of them. */
       XEN_GUEST_HANDLE_64(char) name;         /* OUT: Array of names. Each member
                                                  may have an arbitrary length up to
                                                  XEN_LIVEPATCH_NAME_SIZE bytes. Must have
                                                  nr of them. */
       XEN_GUEST_HANDLE_64(uint32) len;        /* OUT: Array of lengths of name's.
                                                  Must have nr of them. */
       XEN_GUEST_HANDLE_64(char) metadata;     /* OUT: Array of metadata strings. Each
                                                  member may have an arbitrary length.
                                                  Must have nr of them. */
       XEN_GUEST_HANDLE_64(uint32) metadata_len;  /* OUT: Array of lengths of metadata's.
                                                     Must have nr of them. */
   };
   
   /*
    * Perform an operation on the payload structure referenced by the `name` field.
    * The operation request is asynchronous and the status should be retrieved
    * by using either XEN_SYSCTL_LIVEPATCH_GET or XEN_SYSCTL_LIVEPATCH_LIST hypercall.
   */
  #define XEN_SYSCTL_LIVEPATCH_ACTION 3
  struct xen_sysctl_livepatch_action {
      struct xen_livepatch_name name;         /* IN, name of the patch. */
  #define LIVEPATCH_ACTION_UNLOAD       1
  #define LIVEPATCH_ACTION_REVERT       2
  #define LIVEPATCH_ACTION_APPLY        3
  #define LIVEPATCH_ACTION_REPLACE      4
      uint32_t cmd;                           /* IN: LIVEPATCH_ACTION_*. */
      uint32_t timeout;                       /* IN: If zero then uses */
                                              /* hypervisor default. */
                                              /* Or upper bound of time (ns) */
                                              /* for operation to take. */
  
  /*
   * Override default inter-module buildid dependency chain enforcement.
   * Check only if module is built for given hypervisor by comparing buildid.
   */
  #define LIVEPATCH_ACTION_APPLY_NODEPS (1 << 0)
      uint32_t flags;                         /* IN: action flags. */
                                              /* Provide additional parameters */
                                              /* for an action. */
      uint32_t pad;                           /* IN: Always zero. */
  };
  
  struct xen_sysctl_livepatch_op {
      uint32_t cmd;                           /* IN: XEN_SYSCTL_LIVEPATCH_*. */
      uint32_t pad;                           /* IN: Always zero. */
      union {
          struct xen_sysctl_livepatch_upload upload;
          struct xen_sysctl_livepatch_list list;
          struct xen_sysctl_livepatch_get get;
          struct xen_sysctl_livepatch_action action;
      } u;
  };
  
  #if defined(__i386__) || defined(__x86_64__)
  /*
   * XEN_SYSCTL_get_cpu_policy (x86 specific)
   *
   * Return information about CPUID and MSR policies available on this host.
   *  -       Raw: The real H/W values.
   *  -      Host: The values Xen is using, (after command line overrides, etc).
   *  -     Max_*: Maximum set of features a PV or HVM guest can use.  Includes
   *               experimental features outside of security support.
   *  - Default_*: Default set of features a PV or HVM guest can use.  This is
   *               the security supported set.
   * May fail with -EOPNOTSUPP if querying for PV or HVM data when support is
   * compiled out of Xen.
   */
  struct xen_sysctl_cpu_policy {
  #define XEN_SYSCTL_cpu_policy_raw          0
  #define XEN_SYSCTL_cpu_policy_host         1
  #define XEN_SYSCTL_cpu_policy_pv_max       2
  #define XEN_SYSCTL_cpu_policy_hvm_max      3
  #define XEN_SYSCTL_cpu_policy_pv_default   4
  #define XEN_SYSCTL_cpu_policy_hvm_default  5
      uint32_t index;       /* IN: Which policy to query? */
      uint32_t nr_leaves;   /* IN/OUT: Number of leaves in/written to
                             * 'cpuid_policy', or the maximum number of leaves
                             * if the guest handle is NULL. */
      uint32_t nr_msrs;     /* IN/OUT: Number of MSRs in/written to
                             * 'msr_policy', or the maximum number of MSRs if
                             * the guest handle is NULL. */
      uint32_t _rsvd;       /* Must be zero. */
      XEN_GUEST_HANDLE_64(xen_cpuid_leaf_t) cpuid_policy; /* OUT */
      XEN_GUEST_HANDLE_64(xen_msr_entry_t) msr_policy;    /* OUT */
  };
  typedef struct xen_sysctl_cpu_policy xen_sysctl_cpu_policy_t;
  DEFINE_XEN_GUEST_HANDLE(xen_sysctl_cpu_policy_t);
  #endif
  
  struct xen_sysctl {
      uint32_t cmd;
  #define XEN_SYSCTL_readconsole                    1
  #define XEN_SYSCTL_tbuf_op                        2
  #define XEN_SYSCTL_physinfo                       3
  #define XEN_SYSCTL_sched_id                       4
  #define XEN_SYSCTL_perfc_op                       5
  #define XEN_SYSCTL_getdomaininfolist              6
  #define XEN_SYSCTL_debug_keys                     7
  #define XEN_SYSCTL_getcpuinfo                     8
  #define XEN_SYSCTL_availheap                      9
  #define XEN_SYSCTL_get_pmstat                    10
  #define XEN_SYSCTL_cpu_hotplug                   11
  #define XEN_SYSCTL_pm_op                         12
  #define XEN_SYSCTL_page_offline_op               14
  #define XEN_SYSCTL_lockprof_op                   15
  #define XEN_SYSCTL_cputopoinfo                   16
  #define XEN_SYSCTL_numainfo                      17
  #define XEN_SYSCTL_cpupool_op                    18
  #define XEN_SYSCTL_scheduler_op                  19
  #define XEN_SYSCTL_coverage_op                   20
  #define XEN_SYSCTL_psr_cmt_op                    21
  #define XEN_SYSCTL_pcitopoinfo                   22
  #define XEN_SYSCTL_psr_alloc                     23
  /* #define XEN_SYSCTL_tmem_op                       24 */
  #define XEN_SYSCTL_get_cpu_levelling_caps        25
  #define XEN_SYSCTL_get_cpu_featureset            26
  #define XEN_SYSCTL_livepatch_op                  27
  /* #define XEN_SYSCTL_set_parameter              28 */
  #define XEN_SYSCTL_get_cpu_policy                29
      uint32_t interface_version; /* XEN_SYSCTL_INTERFACE_VERSION */
      union {
          struct xen_sysctl_readconsole       readconsole;
          struct xen_sysctl_tbuf_op           tbuf_op;
          struct xen_sysctl_physinfo          physinfo;
          struct xen_sysctl_cputopoinfo       cputopoinfo;
          struct xen_sysctl_pcitopoinfo       pcitopoinfo;
          struct xen_sysctl_numainfo          numainfo;
          struct xen_sysctl_sched_id          sched_id;
          struct xen_sysctl_perfc_op          perfc_op;
          struct xen_sysctl_getdomaininfolist getdomaininfolist;
          struct xen_sysctl_debug_keys        debug_keys;
          struct xen_sysctl_getcpuinfo        getcpuinfo;
          struct xen_sysctl_availheap         availheap;
          struct xen_sysctl_get_pmstat        get_pmstat;
          struct xen_sysctl_cpu_hotplug       cpu_hotplug;
          struct xen_sysctl_pm_op             pm_op;
          struct xen_sysctl_page_offline_op   page_offline;
          struct xen_sysctl_lockprof_op       lockprof_op;
          struct xen_sysctl_cpupool_op        cpupool_op;
          struct xen_sysctl_scheduler_op      scheduler_op;
          struct xen_sysctl_coverage_op       coverage_op;
          struct xen_sysctl_psr_cmt_op        psr_cmt_op;
          struct xen_sysctl_psr_alloc         psr_alloc;
          struct xen_sysctl_cpu_levelling_caps cpu_levelling_caps;
          struct xen_sysctl_cpu_featureset    cpu_featureset;
          struct xen_sysctl_livepatch_op      livepatch;
  #if defined(__i386__) || defined(__x86_64__)
          struct xen_sysctl_cpu_policy        cpu_policy;
  #endif
          uint8_t                             pad[128];
      } u;
  };
  typedef struct xen_sysctl xen_sysctl_t;
  DEFINE_XEN_GUEST_HANDLE(xen_sysctl_t);
  
  #endif /* __XEN_PUBLIC_SYSCTL_H__ */
  
  /*
   * Local variables:
   * mode: C
   * c-file-style: "BSD"
   * c-basic-offset: 4
   * tab-width: 4
   * indent-tabs-mode: nil
   * End:
   */

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