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[Xen-devel] [RFC PATCH v4 2/9] xen/arm: implement HYPERVISOR_sysctl



Signed-off-by: Oleksandr Dmytryshyn <oleksandr.dmytryshyn@xxxxxxxxxxxxxxx>
---
 arch/arm/include/asm/xen/hypercall.h |   1 +
 arch/arm/include/asm/xen/interface.h |   2 +
 arch/arm/xen/enlighten.c             |   1 +
 arch/arm/xen/hypercall.S             |   1 +
 include/xen/interface/sysctl.h       | 646 +++++++++++++++++++++++++++++++++++
 include/xen/interface/xen.h          |   6 +
 6 files changed, 657 insertions(+)
 create mode 100644 include/xen/interface/sysctl.h

diff --git a/arch/arm/include/asm/xen/hypercall.h 
b/arch/arm/include/asm/xen/hypercall.h
index c817c56..751869eb 100644
--- a/arch/arm/include/asm/xen/hypercall.h
+++ b/arch/arm/include/asm/xen/hypercall.h
@@ -48,6 +48,7 @@ int HYPERVISOR_memory_op(unsigned int cmd, void *arg);
 int HYPERVISOR_physdev_op(int cmd, void *arg);
 int HYPERVISOR_vcpu_op(int cmd, int vcpuid, void *extra_args);
 int HYPERVISOR_tmem_op(void *arg);
+int HYPERVISOR_sysctl(void *arg);
 
 static inline void
 MULTI_update_va_mapping(struct multicall_entry *mcl, unsigned long va,
diff --git a/arch/arm/include/asm/xen/interface.h 
b/arch/arm/include/asm/xen/interface.h
index 1151188..acf4b7a 100644
--- a/arch/arm/include/asm/xen/interface.h
+++ b/arch/arm/include/asm/xen/interface.h
@@ -19,6 +19,7 @@
        __DEFINE_GUEST_HANDLE(name, struct name)
 #define DEFINE_GUEST_HANDLE(name) __DEFINE_GUEST_HANDLE(name, name)
 #define GUEST_HANDLE(name)        __guest_handle_ ## name
+#define GUEST_HANDLE_64(name)     GUEST_HANDLE(name)
 
 #define set_xen_guest_handle(hnd, val)                 \
        do {                                            \
@@ -48,6 +49,7 @@ DEFINE_GUEST_HANDLE(int);
 DEFINE_GUEST_HANDLE(void);
 DEFINE_GUEST_HANDLE(uint64_t);
 DEFINE_GUEST_HANDLE(uint32_t);
+DEFINE_GUEST_HANDLE(uint8_t);
 DEFINE_GUEST_HANDLE(xen_pfn_t);
 DEFINE_GUEST_HANDLE(xen_ulong_t);
 
diff --git a/arch/arm/xen/enlighten.c b/arch/arm/xen/enlighten.c
index eb0d851..675f17a 100644
--- a/arch/arm/xen/enlighten.c
+++ b/arch/arm/xen/enlighten.c
@@ -350,4 +350,5 @@ EXPORT_SYMBOL_GPL(HYPERVISOR_memory_op);
 EXPORT_SYMBOL_GPL(HYPERVISOR_physdev_op);
 EXPORT_SYMBOL_GPL(HYPERVISOR_vcpu_op);
 EXPORT_SYMBOL_GPL(HYPERVISOR_tmem_op);
+EXPORT_SYMBOL_GPL(HYPERVISOR_sysctl);
 EXPORT_SYMBOL_GPL(privcmd_call);
diff --git a/arch/arm/xen/hypercall.S b/arch/arm/xen/hypercall.S
index d1cf7b7..a1276df 100644
--- a/arch/arm/xen/hypercall.S
+++ b/arch/arm/xen/hypercall.S
@@ -89,6 +89,7 @@ HYPERCALL2(memory_op);
 HYPERCALL2(physdev_op);
 HYPERCALL3(vcpu_op);
 HYPERCALL1(tmem_op);
+HYPERCALL1(sysctl);
 
 ENTRY(privcmd_call)
        stmdb sp!, {r4}
diff --git a/include/xen/interface/sysctl.h b/include/xen/interface/sysctl.h
new file mode 100644
index 0000000..1a8cf7a
--- /dev/null
+++ b/include/xen/interface/sysctl.h
@@ -0,0 +1,646 @@
+/******************************************************************************
+ * sysctl.h
+ *
+ * System management operations. For use by node control stack.
+ *
+ * Reused from xen: xen/include/public/sysctl.h
+ *
+ * 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
+ * Copyright (c) 2014, GlobalLogic Inc.
+ */
+
+#ifndef __XEN_PUBLIC_SYSCTL_H__
+#define __XEN_PUBLIC_SYSCTL_H__
+
+#include <xen/interface/xen.h>
+
+#define XEN_SYSCTL_INTERFACE_VERSION 0x0000000A
+
+/*
+ * 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. */
+       GUEST_HANDLE_64(char) buffer;
+       /* IN: Size of buffer; OUT: Bytes written to buffer. */
+       uint32_t count;
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_sysctl_readconsole);
+
+/* 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! */
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_sysctl_tbuf_op);
+
+/*
+ * Get physical information about the host machine
+ */
+/* XEN_SYSCTL_physinfo */
+ /* (x86) The platform supports HVM guests. */
+#define _XEN_SYSCTL_PHYSCAP_hvm          0
+#define XEN_SYSCTL_PHYSCAP_hvm           (1u<<_XEN_SYSCTL_PHYSCAP_hvm)
+ /* (x86) The platform supports HVM-guest direct access to I/O devices. */
+#define _XEN_SYSCTL_PHYSCAP_hvm_directio 1
+#define XEN_SYSCTL_PHYSCAP_hvm_directio  (1u<<_XEN_SYSCTL_PHYSCAP_hvm_directio)
+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;
+       uint64_aligned_t total_pages;
+       uint64_aligned_t free_pages;
+       uint64_aligned_t scrub_pages;
+       uint64_aligned_t outstanding_pages;
+       uint32_t hw_cap[8];
+
+       /* XEN_SYSCTL_PHYSCAP_??? */
+       uint32_t capabilities;
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_sysctl_physinfo);
+
+/*
+ * Get the ID of the current scheduler.
+ */
+/* XEN_SYSCTL_sched_id */
+struct xen_sysctl_sched_id {
+       /* OUT variable */
+       uint32_t sched_id;
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_sysctl_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 */
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_sysctl_perfc_desc);
+DEFINE_GUEST_HANDLE_STRUCT(xen_sysctl_perfc_val);
+
+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) */
+       GUEST_HANDLE_64(xen_sysctl_perfc_desc) desc;
+       /* counter values (or NULL) */
+       GUEST_HANDLE_64(xen_sysctl_perfc_val) val;
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_sysctl_perfc_op);
+
+/* Inject debug keys into Xen. */
+/* XEN_SYSCTL_debug_keys */
+struct xen_sysctl_debug_keys {
+       /* IN variables. */
+       GUEST_HANDLE_64(char) keys;
+       uint32_t nr_keys;
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_sysctl_debug_keys);
+
+/* Get physical CPU information. */
+/* XEN_SYSCTL_getcpuinfo */
+struct xen_sysctl_cpuinfo {
+       uint64_aligned_t idletime;
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_sysctl_cpuinfo);
+struct xen_sysctl_getcpuinfo {
+       /* IN variables. */
+       uint32_t max_cpus;
+       GUEST_HANDLE_64(xen_sysctl_cpuinfo) info;
+       /* OUT variables. */
+       uint32_t nr_cpus;
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_sysctl_getcpuinfo);
+
+/* 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 
*/
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_sysctl_availheap);
+
+/* 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 */
+};
+DEFINE_GUEST_HANDLE_STRUCT(pm_px_val);
+
+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 */
+       GUEST_HANDLE_64(uint64_t) trans_pt;   /* Px transition table */
+       GUEST_HANDLE_64(pm_px_val) pt;
+};
+DEFINE_GUEST_HANDLE_STRUCT(pm_px_stat);
+
+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 */
+       GUEST_HANDLE_64(uint64_t) triggers;    /* Cx trigger counts */
+       GUEST_HANDLE_64(uint64_t) residencies; /* Cx residencies */
+       uint64_aligned_t pc2;
+       uint64_aligned_t pc3;
+       uint64_aligned_t pc6;
+       uint64_aligned_t pc7;
+       uint64_aligned_t cc3;
+       uint64_aligned_t cc6;
+       uint64_aligned_t cc7;
+};
+
+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;
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_sysctl_get_pmstat);
+
+/* XEN_SYSCTL_cpu_hotplug */
+struct xen_sysctl_cpu_hotplug {
+       /* IN variables */
+       uint32_t cpu;   /* Physical cpu. */
+#define XEN_SYSCTL_CPU_HOTPLUG_ONLINE  0
+#define XEN_SYSCTL_CPU_HOTPLUG_OFFLINE 1
+       uint32_t op;    /* hotplug opcode */
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_sysctl_cpu_hotplug);
+
+/*
+ * 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 */
+       GUEST_HANDLE_64(uint32_t) affected_cpus;
+       GUEST_HANDLE_64(uint32_t) scaling_available_frequencies;
+       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_cstate access command */
+       #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;
+               uint32_t                    get_max_cstate;
+               uint32_t                    set_max_cstate;
+               uint32_t                    get_vcpu_migration_delay;
+               uint32_t                    set_vcpu_migration_delay;
+       } 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
+       */
+       GUEST_HANDLE(uint32_t) 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 */
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_sysctl_lockprof_data);
+
+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) */
+       GUEST_HANDLE_64(xen_sysctl_lockprof_data) data;
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_sysctl_lockprof_op);
+
+/* XEN_SYSCTL_topologyinfo */
+#define INVALID_TOPOLOGY_ID  (~0U)
+struct xen_sysctl_topologyinfo {
+       /*
+        * IN: maximum addressable entry in the caller-provided arrays.
+        * OUT: largest cpu identifier in the system.
+        * If OUT is greater than IN then the arrays are truncated!
+        * If OUT is leass than IN then the array tails are not written by
+        * sysctl.
+        */
+       uint32_t max_cpu_index;
+
+       /*
+        * If not NULL, these arrays are filled with core/socket/node identifier
+        * for each cpu.
+        * If a cpu has no core/socket/node information (e.g., cpu not present)
+        * then the sentinel value ~0u is written to each array.
+        * The number of array elements written by the sysctl is:
+        *   min(@max_cpu_index_IN,@max_cpu_index_OUT)+1
+        */
+       GUEST_HANDLE_64(uint32_t) cpu_to_core;
+       GUEST_HANDLE_64(uint32_t) cpu_to_socket;
+       GUEST_HANDLE_64(uint32_t) cpu_to_node;
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_sysctl_topologyinfo);
+
+/* XEN_SYSCTL_numainfo */
+#define INVALID_NUMAINFO_ID (~0U)
+struct xen_sysctl_numainfo {
+       /*
+        * IN: maximum addressable entry in the caller-provided arrays.
+        * OUT: largest node identifier in the system.
+        * If OUT is greater than IN then the arrays are truncated!
+        */
+       uint32_t max_node_index;
+
+       /* NB. Entries are 0 if node is not present. */
+       GUEST_HANDLE_64(uint64_t) node_to_memsize;
+       GUEST_HANDLE_64(uint64_t) node_to_memfree;
+
+       /*
+        * Array, of size (max_node_index+1)^2, listing memory access distances
+        * between nodes. If an entry has no node distance information (e.g., 
node
+        * not present) then the value ~0u is written.
+        *
+        * Note that the array rows must be indexed by multiplying by the 
minimum
+        * of the caller-provided max_node_index and the returned value of
+        * max_node_index. That is, if the largest node index in the system is
+        * smaller than the caller can handle, a smaller 2-d array is 
constructed
+        * within the space provided by the caller. When this occurs, trailing
+        * space provided by the caller is not modified. If the largest node 
index
+        * in the system is larger than the caller can handle, then a 2-d array 
of
+        * the maximum size handleable by the caller is constructed.
+        */
+       GUEST_HANDLE_64(uint32_t) node_to_node_distance;
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_sysctl_numainfo);
+
+/* 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 */
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_sysctl_cpupool_op);
+
+#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];
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_sysctl_arinc653_schedule);
+
+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;
+    /* Rate limit (minimum timeslice) in microseconds */
+#define XEN_SYSCTL_SCHED_RATELIMIT_MAX 500000
+#define XEN_SYSCTL_SCHED_RATELIMIT_MIN 100
+       unsigned ratelimit_us;
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_sysctl_credit_schedule);
+
+/* 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 {
+                       GUEST_HANDLE_64(xen_sysctl_arinc653_schedule) schedule;
+               } sched_arinc653;
+               struct xen_sysctl_credit_schedule sched_credit;
+       } u;
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_sysctl_scheduler_op);
+
+/* XEN_SYSCTL_coverage_op */
+/*
+ * Get total size of information, to help allocate
+ * the buffer. The pointer points to a 32 bit value.
+ */
+#define XEN_SYSCTL_COVERAGE_get_total_size 0
+
+/*
+ * Read coverage information in a single run
+ * You must use a tool to split them.
+ */
+#define XEN_SYSCTL_COVERAGE_read           1
+
+/*
+ * Reset all the coverage counters to 0
+ * No parameters.
+ */
+#define XEN_SYSCTL_COVERAGE_reset          2
+
+/*
+ * Like XEN_SYSCTL_COVERAGE_read but reset also
+ * counters to 0 in a single call.
+ */
+#define XEN_SYSCTL_COVERAGE_read_and_reset 3
+
+struct xen_sysctl_coverage_op {
+       uint32_t cmd;        /* XEN_SYSCTL_COVERAGE_* */
+       union {
+               uint32_t total_size; /* OUT */
+               GUEST_HANDLE_64(uint8_t)  raw_info;   /* OUT */
+       } u;
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_sysctl_coverage_op);
+
+
+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_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_topologyinfo                  16
+#define XEN_SYSCTL_numainfo                      17
+#define XEN_SYSCTL_cpupool_op                    18
+#define XEN_SYSCTL_scheduler_op                  19
+#define XEN_SYSCTL_coverage_op                   20
+       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_topologyinfo      topologyinfo;
+               struct xen_sysctl_numainfo          numainfo;
+               struct xen_sysctl_sched_id          sched_id;
+               struct xen_sysctl_perfc_op          perfc_op;
+               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;
+               uint8_t                             pad[128];
+       } u;
+};
+DEFINE_GUEST_HANDLE_STRUCT(xen_sysctl);
+
+#endif /* __XEN_PUBLIC_SYSCTL_H__ */
diff --git a/include/xen/interface/xen.h b/include/xen/interface/xen.h
index 53ec416..cf64566 100644
--- a/include/xen/interface/xen.h
+++ b/include/xen/interface/xen.h
@@ -57,6 +57,7 @@
 #define __HYPERVISOR_event_channel_op     32
 #define __HYPERVISOR_physdev_op           33
 #define __HYPERVISOR_hvm_op               34
+#define __HYPERVISOR_sysctl               35
 #define __HYPERVISOR_tmem_op              38
 
 /* Architecture-specific hypercall definitions. */
@@ -526,6 +527,11 @@ struct tmem_op {
 
 DEFINE_GUEST_HANDLE(u64);
 
+struct xenctl_bitmap {
+       GUEST_HANDLE_64(uint8_t) bitmap;
+       uint32_t nr_bits;
+};
+
 #else /* __ASSEMBLY__ */
 
 /* In assembly code we cannot use C numeric constant suffixes. */
-- 
1.9.1


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