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309 lines
11 KiB
C
309 lines
11 KiB
C
/******************************************************************************
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* sysctl.h
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*
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* System management operations. For use by node control stack.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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* Copyright (c) 2002-2006, K Fraser
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*/
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#ifndef __XEN_PUBLIC_SYSCTL_H__
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#define __XEN_PUBLIC_SYSCTL_H__
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#if !defined(__XEN__) && !defined(__XEN_TOOLS__)
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#error "sysctl operations are intended for use by node control tools only"
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#endif
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#include "xen.h"
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#include "domctl.h"
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#define XEN_SYSCTL_INTERFACE_VERSION 0x00000006
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/*
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* Read console content from Xen buffer ring.
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*/
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#define XEN_SYSCTL_readconsole 1
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struct xen_sysctl_readconsole {
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/* IN: Non-zero -> clear after reading. */
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uint8_t clear;
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/* IN: Non-zero -> start index specified by @index field. */
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uint8_t incremental;
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uint8_t pad0, pad1;
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/*
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* IN: Start index for consuming from ring buffer (if @incremental);
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* OUT: End index after consuming from ring buffer.
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*/
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uint32_t index;
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/* IN: Virtual address to write console data. */
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XEN_GUEST_HANDLE_64(char) buffer;
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/* IN: Size of buffer; OUT: Bytes written to buffer. */
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uint32_t count;
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};
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typedef struct xen_sysctl_readconsole xen_sysctl_readconsole_t;
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DEFINE_XEN_GUEST_HANDLE(xen_sysctl_readconsole_t);
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/* Get trace buffers machine base address */
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#define XEN_SYSCTL_tbuf_op 2
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struct xen_sysctl_tbuf_op {
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/* IN variables */
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#define XEN_SYSCTL_TBUFOP_get_info 0
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#define XEN_SYSCTL_TBUFOP_set_cpu_mask 1
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#define XEN_SYSCTL_TBUFOP_set_evt_mask 2
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#define XEN_SYSCTL_TBUFOP_set_size 3
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#define XEN_SYSCTL_TBUFOP_enable 4
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#define XEN_SYSCTL_TBUFOP_disable 5
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uint32_t cmd;
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/* IN/OUT variables */
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struct xenctl_cpumap cpu_mask;
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uint32_t evt_mask;
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/* OUT variables */
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uint64_aligned_t buffer_mfn;
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uint32_t size;
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};
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typedef struct xen_sysctl_tbuf_op xen_sysctl_tbuf_op_t;
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DEFINE_XEN_GUEST_HANDLE(xen_sysctl_tbuf_op_t);
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/*
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* Get physical information about the host machine
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*/
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#define XEN_SYSCTL_physinfo 3
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/* (x86) The platform supports HVM guests. */
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#define _XEN_SYSCTL_PHYSCAP_hvm 0
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#define XEN_SYSCTL_PHYSCAP_hvm (1u<<_XEN_SYSCTL_PHYSCAP_hvm)
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/* (x86) The platform supports HVM-guest direct access to I/O devices. */
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#define _XEN_SYSCTL_PHYSCAP_hvm_directio 1
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#define XEN_SYSCTL_PHYSCAP_hvm_directio (1u<<_XEN_SYSCTL_PHYSCAP_hvm_directio)
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struct xen_sysctl_physinfo {
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uint32_t threads_per_core;
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uint32_t cores_per_socket;
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uint32_t nr_cpus;
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uint32_t nr_nodes;
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uint32_t cpu_khz;
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uint64_aligned_t total_pages;
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uint64_aligned_t free_pages;
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uint64_aligned_t scrub_pages;
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uint32_t hw_cap[8];
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/*
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* IN: maximum addressable entry in the caller-provided cpu_to_node array.
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* OUT: largest cpu identifier in the system.
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* If OUT is greater than IN then the cpu_to_node array is truncated!
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*/
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uint32_t max_cpu_id;
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/*
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* If not NULL, this array is filled with node identifier for each cpu.
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* If a cpu has no node information (e.g., cpu not present) then the
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* sentinel value ~0u is written.
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* The size of this array is specified by the caller in @max_cpu_id.
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* If the actual @max_cpu_id is smaller than the array then the trailing
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* elements of the array will not be written by the sysctl.
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*/
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XEN_GUEST_HANDLE_64(uint32) cpu_to_node;
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/* XEN_SYSCTL_PHYSCAP_??? */
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uint32_t capabilities;
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};
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typedef struct xen_sysctl_physinfo xen_sysctl_physinfo_t;
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DEFINE_XEN_GUEST_HANDLE(xen_sysctl_physinfo_t);
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/*
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* Get the ID of the current scheduler.
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*/
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#define XEN_SYSCTL_sched_id 4
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struct xen_sysctl_sched_id {
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/* OUT variable */
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uint32_t sched_id;
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};
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typedef struct xen_sysctl_sched_id xen_sysctl_sched_id_t;
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DEFINE_XEN_GUEST_HANDLE(xen_sysctl_sched_id_t);
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/* Interface for controlling Xen software performance counters. */
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#define XEN_SYSCTL_perfc_op 5
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/* Sub-operations: */
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#define XEN_SYSCTL_PERFCOP_reset 1 /* Reset all counters to zero. */
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#define XEN_SYSCTL_PERFCOP_query 2 /* Get perfctr information. */
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struct xen_sysctl_perfc_desc {
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char name[80]; /* name of perf counter */
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uint32_t nr_vals; /* number of values for this counter */
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};
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typedef struct xen_sysctl_perfc_desc xen_sysctl_perfc_desc_t;
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DEFINE_XEN_GUEST_HANDLE(xen_sysctl_perfc_desc_t);
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typedef uint32_t xen_sysctl_perfc_val_t;
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DEFINE_XEN_GUEST_HANDLE(xen_sysctl_perfc_val_t);
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struct xen_sysctl_perfc_op {
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/* IN variables. */
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uint32_t cmd; /* XEN_SYSCTL_PERFCOP_??? */
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/* OUT variables. */
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uint32_t nr_counters; /* number of counters description */
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uint32_t nr_vals; /* number of values */
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/* counter information (or NULL) */
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XEN_GUEST_HANDLE_64(xen_sysctl_perfc_desc_t) desc;
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/* counter values (or NULL) */
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XEN_GUEST_HANDLE_64(xen_sysctl_perfc_val_t) val;
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};
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typedef struct xen_sysctl_perfc_op xen_sysctl_perfc_op_t;
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DEFINE_XEN_GUEST_HANDLE(xen_sysctl_perfc_op_t);
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#define XEN_SYSCTL_getdomaininfolist 6
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struct xen_sysctl_getdomaininfolist {
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/* IN variables. */
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domid_t first_domain;
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uint32_t max_domains;
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XEN_GUEST_HANDLE_64(xen_domctl_getdomaininfo_t) buffer;
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/* OUT variables. */
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uint32_t num_domains;
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};
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typedef struct xen_sysctl_getdomaininfolist xen_sysctl_getdomaininfolist_t;
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DEFINE_XEN_GUEST_HANDLE(xen_sysctl_getdomaininfolist_t);
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/* Inject debug keys into Xen. */
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#define XEN_SYSCTL_debug_keys 7
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struct xen_sysctl_debug_keys {
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/* IN variables. */
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XEN_GUEST_HANDLE_64(char) keys;
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uint32_t nr_keys;
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};
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typedef struct xen_sysctl_debug_keys xen_sysctl_debug_keys_t;
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DEFINE_XEN_GUEST_HANDLE(xen_sysctl_debug_keys_t);
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/* Get physical CPU information. */
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#define XEN_SYSCTL_getcpuinfo 8
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struct xen_sysctl_cpuinfo {
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uint64_aligned_t idletime;
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};
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typedef struct xen_sysctl_cpuinfo xen_sysctl_cpuinfo_t;
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DEFINE_XEN_GUEST_HANDLE(xen_sysctl_cpuinfo_t);
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struct xen_sysctl_getcpuinfo {
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/* IN variables. */
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uint32_t max_cpus;
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XEN_GUEST_HANDLE_64(xen_sysctl_cpuinfo_t) info;
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/* OUT variables. */
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uint32_t nr_cpus;
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};
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typedef struct xen_sysctl_getcpuinfo xen_sysctl_getcpuinfo_t;
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DEFINE_XEN_GUEST_HANDLE(xen_sysctl_getcpuinfo_t);
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#define XEN_SYSCTL_availheap 9
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struct xen_sysctl_availheap {
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/* IN variables. */
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uint32_t min_bitwidth; /* Smallest address width (zero if don't care). */
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uint32_t max_bitwidth; /* Largest address width (zero if don't care). */
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int32_t node; /* NUMA node of interest (-1 for all nodes). */
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/* OUT variables. */
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uint64_aligned_t avail_bytes;/* Bytes available in the specified region. */
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};
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typedef struct xen_sysctl_availheap xen_sysctl_availheap_t;
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DEFINE_XEN_GUEST_HANDLE(xen_sysctl_availheap_t);
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#define XEN_SYSCTL_get_pmstat 10
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struct pm_px_val {
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uint64_aligned_t freq; /* Px core frequency */
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uint64_aligned_t residency; /* Px residency time */
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uint64_aligned_t count; /* Px transition count */
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};
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typedef struct pm_px_val pm_px_val_t;
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DEFINE_XEN_GUEST_HANDLE(pm_px_val_t);
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struct pm_px_stat {
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uint8_t total; /* total Px states */
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uint8_t usable; /* usable Px states */
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uint8_t last; /* last Px state */
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uint8_t cur; /* current Px state */
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XEN_GUEST_HANDLE_64(uint64) trans_pt; /* Px transition table */
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XEN_GUEST_HANDLE_64(pm_px_val_t) pt;
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};
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typedef struct pm_px_stat pm_px_stat_t;
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DEFINE_XEN_GUEST_HANDLE(pm_px_stat_t);
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struct pm_cx_stat {
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uint32_t nr; /* entry nr in triggers & residencies, including C0 */
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uint32_t last; /* last Cx state */
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uint64_aligned_t idle_time; /* idle time from boot */
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XEN_GUEST_HANDLE_64(uint64) triggers; /* Cx trigger counts */
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XEN_GUEST_HANDLE_64(uint64) residencies; /* Cx residencies */
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};
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struct xen_sysctl_get_pmstat {
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#define PMSTAT_CATEGORY_MASK 0xf0
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#define PMSTAT_PX 0x10
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#define PMSTAT_CX 0x20
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#define PMSTAT_get_max_px (PMSTAT_PX | 0x1)
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#define PMSTAT_get_pxstat (PMSTAT_PX | 0x2)
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#define PMSTAT_reset_pxstat (PMSTAT_PX | 0x3)
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#define PMSTAT_get_max_cx (PMSTAT_CX | 0x1)
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#define PMSTAT_get_cxstat (PMSTAT_CX | 0x2)
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#define PMSTAT_reset_cxstat (PMSTAT_CX | 0x3)
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uint32_t type;
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uint32_t cpuid;
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union {
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struct pm_px_stat getpx;
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struct pm_cx_stat getcx;
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/* other struct for tx, etc */
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} u;
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};
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typedef struct xen_sysctl_get_pmstat xen_sysctl_get_pmstat_t;
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DEFINE_XEN_GUEST_HANDLE(xen_sysctl_get_pmstat_t);
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#define XEN_SYSCTL_cpu_hotplug 11
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struct xen_sysctl_cpu_hotplug {
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/* IN variables */
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uint32_t cpu; /* Physical cpu. */
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#define XEN_SYSCTL_CPU_HOTPLUG_ONLINE 0
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#define XEN_SYSCTL_CPU_HOTPLUG_OFFLINE 1
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uint32_t op; /* hotplug opcode */
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};
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typedef struct xen_sysctl_cpu_hotplug xen_sysctl_cpu_hotplug_t;
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DEFINE_XEN_GUEST_HANDLE(xen_sysctl_cpu_hotplug_t);
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struct xen_sysctl {
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uint32_t cmd;
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uint32_t interface_version; /* XEN_SYSCTL_INTERFACE_VERSION */
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union {
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struct xen_sysctl_readconsole readconsole;
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struct xen_sysctl_tbuf_op tbuf_op;
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struct xen_sysctl_physinfo physinfo;
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struct xen_sysctl_sched_id sched_id;
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struct xen_sysctl_perfc_op perfc_op;
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struct xen_sysctl_getdomaininfolist getdomaininfolist;
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struct xen_sysctl_debug_keys debug_keys;
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struct xen_sysctl_getcpuinfo getcpuinfo;
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struct xen_sysctl_availheap availheap;
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struct xen_sysctl_get_pmstat get_pmstat;
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struct xen_sysctl_cpu_hotplug cpu_hotplug;
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uint8_t pad[128];
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} u;
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};
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typedef struct xen_sysctl xen_sysctl_t;
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DEFINE_XEN_GUEST_HANDLE(xen_sysctl_t);
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#endif /* __XEN_PUBLIC_SYSCTL_H__ */
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/*
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* Local variables:
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* mode: C
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* c-set-style: "BSD"
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* c-basic-offset: 4
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* tab-width: 4
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* indent-tabs-mode: nil
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* End:
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*/
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