package/kernel/linux/modules/crypto.mk


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#
# Copyright (C) 2006-2011 OpenWrt.org
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#

CRYPTO_MENU:=Cryptographic API modules

CRYPTO_MODULES = ALGAPI2=crypto_algapi

CRYPTOMGR_MODULES = \
	AEAD2=aead \
	MANAGER2=cryptomgr \
	BLKCIPHER2=crypto_blkcipher

crypto_confvar=CONFIG_CRYPTO_$(word 1,$(subst =,$(space),$(1)))
crypto_file=$(LINUX_DIR)/crypto/$(word 2,$(subst =,$(space),$(1))).ko
crypto_name=$(if $(findstring y,$($(call crypto_confvar,$(1)))),,$(word 2,$(subst =,$(space),$(1))))

define KernelPackage/crypto-core
  SUBMENU:=$(CRYPTO_MENU)
  TITLE:=Core CryptoAPI modules
  KCONFIG:= \
	CONFIG_CRYPTO=y \
	CONFIG_CRYPTO_HW=y \
	CONFIG_CRYPTO_ALGAPI \
	$(foreach mod,$(CRYPTO_MODULES),$(call crypto_confvar,$(mod)))
  FILES:=$(foreach mod,$(CRYPTO_MODULES),$(call crypto_file,$(mod)))
endef

$(eval $(call KernelPackage,crypto-core))


define AddDepends/crypto
  SUBMENU:=$(CRYPTO_MENU)
  DEPENDS+=+kmod-crypto-core $(1)
endef

define KernelPackage/crypto-hash
  TITLE:=CryptoAPI hash support
  KCONFIG:=CONFIG_CRYPTO_HASH
  FILES:=$(LINUX_DIR)/crypto/crypto_hash.ko
  AUTOLOAD:=$(call AutoLoad,02,crypto_hash,1)
  $(call AddDepends/crypto)
endef

$(eval $(call KernelPackage,crypto-hash))


define KernelPackage/crypto-manager
  TITLE:=CryptoAPI algorithm manager
  DEPENDS:=+kmod-crypto-hash +kmod-crypto-pcompress
  KCONFIG:= \
	CONFIG_CRYPTO_AEAD \
	CONFIG_CRYPTO_BLKCIPHER \
	CONFIG_CRYPTO_MANAGER \
	$(foreach mod,$(CRYPTOMGR_MODULES),$(call crypto_confvar,$(mod)))
  FILES:=$(foreach mod,$(CRYPTOMGR_MODULES),$(call crypto_file,$(mod)))
  $(call AddDepends/crypto)
endef

$(eval $(call KernelPackage,crypto-manager))


define KernelPackage/crypto-pcompress
  TITLE:=CryptoAPI Partial (de)compression operations
  KCONFIG:= \
	CONFIG_CRYPTO_PCOMP=y \
	CONFIG_CRYPTO_PCOMP2
  FILES:=$(LINUX_DIR)/crypto/pcompress.ko
  AUTOLOAD:=$(call AutoLoad,09,pcompress)
  $(call AddDepends/crypto)
endef

$(eval $(call KernelPackage,crypto-pcompress))


define KernelPackage/crypto-user
  TITLE:=CryptoAPI userspace interface
  DEPENDS:=+kmod-crypto-hash +kmod-crypto-manager
  KCONFIG:= \
	CONFIG_CRYPTO_USER_API \
	CONFIG_CRYPTO_USER_API_HASH \
	CONFIG_CRYPTO_USER_API_SKCIPHER
  FILES:= \
	$(LINUX_DIR)/crypto/af_alg.ko \
	$(LINUX_DIR)/crypto/algif_hash.ko \
	$(LINUX_DIR)/crypto/algif_skcipher.ko
  AUTOLOAD:=$(call AutoLoad,09,af_alg algif_hash algif_skcipher)
  $(call AddDepends/crypto)
endef

$(eval $(call KernelPackage,crypto-user))


define KernelPackage/crypto-wq
  TITLE:=CryptoAPI work queue handling
  KCONFIG:=CONFIG_CRYPTO_WORKQUEUE
  FILES:=$(LINUX_DIR)/crypto/crypto_wq.ko
  AUTOLOAD:=$(call AutoLoad,09,crypto_wq)
  $(call AddDepends/crypto)
endef
$(eval $(call KernelPackage,crypto-wq))

define KernelPackage/crypto-rng
  TITLE:=CryptoAPI random number generation
  KCONFIG:=CONFIG_CRYPTO_RNG2
  FILES:= \
	$(LINUX_DIR)/crypto/rng.ko \
	$(LINUX_DIR)/crypto/krng.ko
  AUTOLOAD:=$(call AutoLoad,09,rng krng)
  $(call AddDepends/crypto)
endef

$(eval $(call KernelPackage,crypto-rng))


define KernelPackage/crypto-iv
  TITLE:=CryptoAPI initialization vectors
  DEPENDS:=+kmod-crypto-manager +kmod-crypto-rng +kmod-crypto-wq
  KCONFIG:= CONFIG_CRYPTO_BLKCIPHER2
  FILES:= \
	$(LINUX_DIR)/crypto/eseqiv.ko \
	$(LINUX_DIR)/crypto/chainiv.ko
  AUTOLOAD:=$(call AutoLoad,10,eseqiv chainiv)
  $(call AddDepends/crypto)
endef

$(eval $(call KernelPackage,crypto-iv))


define KernelPackage/crypto-hw-talitos
  TITLE:=Freescale integrated security engine (SEC) driver
  DEPENDS:=+kmod-crypto-aes +kmod-crypto-manager +kmod-crypto-hash +kmod-random-core
  KCONFIG:= \
	CONFIG_CRYPTO_DEV_TALITOS
  FILES:= \
	$(LINUX_DIR)/drivers/crypto/talitos.ko
  AUTOLOAD:=$(call AutoLoad,09,talitos)
  $(call AddDepends/crypto)
endef

$(eval $(call KernelPackage,crypto-hw-talitos))


define KernelPackage/crypto-hw-padlock
  TITLE:=VIA PadLock ACE with AES/SHA hw crypto module
  DEPENDS:=+kmod-crypto-aes +kmod-crypto-manager
  KCONFIG:= \
	CONFIG_CRYPTO_DEV_PADLOCK \
	CONFIG_CRYPTO_DEV_PADLOCK_AES \
	CONFIG_CRYPTO_DEV_PADLOCK_SHA
  FILES:= \
	$(LINUX_DIR)/drivers/crypto/padlock-aes.ko \
	$(LINUX_DIR)/drivers/crypto/padlock-sha.ko
  AUTOLOAD:=$(call AutoLoad,09,padlock-aes padlock-sha)
  $(call AddDepends/crypto)
endef

$(eval $(call KernelPackage,crypto-hw-padlock))


define KernelPackage/crypto-hw-geode
  TITLE:=AMD Geode hardware crypto module
  DEPENDS:=+kmod-crypto-manager
  KCONFIG:= \
	CONFIG_CRYPTO_DEV_GEODE
  FILES:=$(LINUX_DIR)/drivers/crypto/geode-aes.ko
  AUTOLOAD:=$(call AutoLoad,09,geode-aes)
  $(call AddDepends/crypto)
endef

$(eval $(call KernelPackage,crypto-hw-geode))


define KernelPackage/crypto-hw-hifn-795x
  TITLE:=HIFN 795x crypto accelerator
  DEPENDS:=+kmod-random-core +kmod-crypto-manager
  KCONFIG:= \
	CONFIG_CRYPTO_DEV_HIFN_795X \
	CONFIG_CRYPTO_DEV_HIFN_795X_RNG=y
  FILES:=$(LINUX_DIR)/drivers/crypto/hifn_795x.ko
  AUTOLOAD:=$(call AutoLoad,09,hifn_795x)
  $(call AddDepends/crypto,+kmod-crypto-des)
endef

$(eval $(call KernelPackage,crypto-hw-hifn-795x))


define KernelPackage/crypto-hw-ppc4xx
  TITLE:=AMCC PPC4xx hardware crypto module
  DEPENDS:=@TARGET_ppc40x||TARGET_ppc44x
  KCONFIG:= \
	CONFIG_CRYPTO_DEV_PPC4XX
  FILES:=$(LINUX_DIR)/drivers/crypto/amcc/crypto4xx.ko
  AUTOLOAD:=$(call AutoLoad,90,crypto4xx)
  $(call AddDepends/crypto,+kmod-crypto-manager +kmod-crypto-hash)
endef

define KernelPackage/crypto-hw-ppc4xx/description
  Kernel support for the AMCC PPC4xx HW crypto engine.
endef

$(eval $(call KernelPackage,crypto-hw-ppc4xx))


define KernelPackage/crypto-hw-omap
  TITLE:=TI OMAP hardware crypto modules
  DEPENDS:=@TARGET_omap
  KCONFIG:= \
	CONFIG_CRYPTO_DEV_OMAP_AES \
	CONFIG_CRYPTO_DEV_OMAP_DES \
	CONFIG_CRYPTO_DEV_OMAP_SHAM
  FILES:= \
	$(LINUX_DIR)/drivers/crypto/omap-aes.ko \
	$(LINUX_DIR)/drivers/crypto/omap-des.ko \
	$(LINUX_DIR)/drivers/crypto/omap-sham.ko
  AUTOLOAD:=$(call AutoLoad,90,omap-aes omap-des omap-sham)
  $(call AddDepends/crypto,+kmod-crypto-manager +kmod-crypto-hash)
endef

define KernelPackage/crypto-hw-omap/description
  Kernel support for the TI OMAP HW crypto engine.
endef

$(eval $(call KernelPackage,crypto-hw-omap))


define KernelPackage/crypto-aes
  TITLE:=AES cipher CryptoAPI module
  KCONFIG:=CONFIG_CRYPTO_AES CONFIG_CRYPTO_AES_586
  FILES:=$(LINUX_DIR)/crypto/aes_generic.ko
  AUTOLOAD:=$(call AutoLoad,09,aes_generic)
  $(call AddDepends/crypto)
endef

define KernelPackage/crypto-aes/x86
  FILES+=$(LINUX_DIR)/arch/x86/crypto/aes-i586.ko
  AUTOLOAD:=$(call AutoLoad,09,aes-i586)
endef

$(eval $(call KernelPackage,crypto-aes))


define KernelPackage/crypto-arc4
  TITLE:=ARC4 (RC4) cipher CryptoAPI module
  KCONFIG:=CONFIG_CRYPTO_ARC4
  FILES:=$(LINUX_DIR)/crypto/arc4.ko
  AUTOLOAD:=$(call AutoLoad,09,arc4)
  $(call AddDepends/crypto,+!LINUX_3_3:kmod-crypto-manager)
endef

$(eval $(call KernelPackage,crypto-arc4))


define KernelPackage/crypto-authenc
  TITLE:=Combined mode wrapper for IPsec
  DEPENDS:=+kmod-crypto-manager
  KCONFIG:=CONFIG_CRYPTO_AUTHENC
  FILES:=$(LINUX_DIR)/crypto/authenc.ko
  AUTOLOAD:=$(call AutoLoad,09,authenc)
  $(call AddDepends/crypto)
endef

$(eval $(call KernelPackage,crypto-authenc))

define KernelPackage/crypto-cbc
  TITLE:=Cipher Block Chaining CryptoAPI module
  DEPENDS:=+kmod-crypto-manager
  KCONFIG:=CONFIG_CRYPTO_CBC
  FILES:=$(LINUX_DIR)/crypto/cbc.ko
  AUTOLOAD:=$(call AutoLoad,09,cbc)
  $(call AddDepends/crypto)
endef

$(eval $(call KernelPackage,crypto-cbc))

define KernelPackage/crypto-crc32c
  TITLE:=CRC32c CRC module
  DEPENDS:=+kmod-crypto-hash
  KCONFIG:=CONFIG_CRYPTO_CRC32C
  FILES:=$(LINUX_DIR)/crypto/crc32c.ko
  AUTOLOAD:=$(call AutoLoad,04,crc32c,1)
  $(call AddDepends/crypto)
endef

$(eval $(call KernelPackage,crypto-crc32c))


define KernelPackage/crypto-des
  TITLE:=DES/3DES cipher CryptoAPI module
  KCONFIG:=CONFIG_CRYPTO_DES
  FILES:=$(LINUX_DIR)/crypto/des_generic.ko
  AUTOLOAD:=$(call AutoLoad,09,des_generic)
  $(call AddDepends/crypto)
endef

$(eval $(call KernelPackage,crypto-des))


define KernelPackage/crypto-deflate
  TITLE:=Deflate compression CryptoAPI module
  DEPENDS:=+kmod-lib-zlib
  KCONFIG:=CONFIG_CRYPTO_DEFLATE
  FILES:=$(LINUX_DIR)/crypto/deflate.ko
  AUTOLOAD:=$(call AutoLoad,09,deflate)
  $(call AddDepends/crypto)
endef

$(eval $(call KernelPackage,crypto-deflate))


define KernelPackage/crypto-ecb
  TITLE:=Electronic CodeBook CryptoAPI module
  DEPENDS:=+kmod-crypto-manager
  KCONFIG:=CONFIG_CRYPTO_ECB
  FILES:=$(LINUX_DIR)/crypto/ecb.ko
  AUTOLOAD:=$(call AutoLoad,09,ecb)
  $(call AddDepends/crypto)
endef

$(eval $(call KernelPackage,crypto-ecb))


define KernelPackage/crypto-hmac
  TITLE:=HMAC digest CryptoAPI module
  DEPENDS:=+kmod-crypto-hash
  KCONFIG:=CONFIG_CRYPTO_HMAC
  FILES:=$(LINUX_DIR)/crypto/hmac.ko
  DEPENDS:=+kmod-crypto-manager
  AUTOLOAD:=$(call AutoLoad,09,hmac)
  $(call AddDepends/crypto)
endef

$(eval $(call KernelPackage,crypto-hmac))


define KernelPackage/crypto-md4
  TITLE:=MD4 digest CryptoAPI module
  DEPENDS:=+kmod-crypto-hash
  KCONFIG:=CONFIG_CRYPTO_MD4
  FILES:=$(LINUX_DIR)/crypto/md4.ko
  AUTOLOAD:=$(call AutoLoad,09,md4)
  $(call AddDepends/crypto)
endef

$(eval $(call KernelPackage,crypto-md4))


define KernelPackage/crypto-md5
  TITLE:=MD5 digest CryptoAPI module
  DEPENDS:=+kmod-crypto-hash
  KCONFIG:=CONFIG_CRYPTO_MD5
  FILES:=$(LINUX_DIR)/crypto/md5.ko
  AUTOLOAD:=$(call AutoLoad,09,md5)
  $(call AddDepends/crypto)
endef

$(eval $(call KernelPackage,crypto-md5))


define KernelPackage/crypto-michael-mic
  TITLE:=Michael MIC keyed digest CryptoAPI module
  DEPENDS:=+kmod-crypto-hash
  KCONFIG:=CONFIG_CRYPTO_MICHAEL_MIC
  FILES:=$(LINUX_DIR)/crypto/michael_mic.ko
  AUTOLOAD:=$(call AutoLoad,09,michael_mic)
  $(call AddDepends/crypto)
endef

$(eval $(call KernelPackage,crypto-michael-mic))


define KernelPackage/crypto-sha1
  TITLE:=SHA1 digest CryptoAPI module
  DEPENDS:=+kmod-crypto-hash
  KCONFIG:=CONFIG_CRYPTO_SHA1
  FILES:=$(LINUX_DIR)/crypto/sha1_generic.ko
  AUTOLOAD:=$(call AutoLoad,09,sha1_generic)
  $(call AddDepends/crypto)
endef

$(eval $(call KernelPackage,crypto-sha1))


define KernelPackage/crypto-sha256
  TITLE:=SHA224 SHA256 digest CryptoAPI module
  DEPENDS:=+kmod-crypto-hash
  KCONFIG:=CONFIG_CRYPTO_SHA256
  FILES:=$(LINUX_DIR)/crypto/sha256_generic.ko
  AUTOLOAD:=$(call AutoLoad,09,sha256_generic)
  $(call AddDepends/crypto)
endef

$(eval $(call KernelPackage,crypto-sha256))


ifeq ($(strip $(call CompareKernelPatchVer,$(KERNEL_PATCHVER),ge,3.6.0)),1)
camellia_mod_suffix=_generic
endif
ifeq ($(strip $(call CompareKernelPatchVer,$(KERNEL_PATCHVER),ge,3.7.0)),1)
cast56_mod_suffix=_generic
endif

define KernelPackage/crypto-misc
  TITLE:=Other CryptoAPI modules
  DEPENDS:=+kmod-crypto-manager
  KCONFIG:= \
	CONFIG_CRYPTO_ANUBIS \
	CONFIG_CRYPTO_BLOWFISH \
	CONFIG_CRYPTO_CAMELLIA \
	CONFIG_CRYPTO_CAST5 \
	CONFIG_CRYPTO_CAST6 \
	CONFIG_CRYPTO_FCRYPT \
	CONFIG_CRYPTO_KHAZAD \
	CONFIG_CRYPTO_SERPENT \
	CONFIG_CRYPTO_SHA512 \
	CONFIG_CRYPTO_TEA \
	CONFIG_CRYPTO_TGR192 \
	CONFIG_CRYPTO_TWOFISH \
	CONFIG_CRYPTO_TWOFISH_COMMON \
	CONFIG_CRYPTO_TWOFISH_586 \
	CONFIG_CRYPTO_WP512
  FILES:= \
	$(LINUX_DIR)/crypto/anubis.ko \
	$(LINUX_DIR)/crypto/camellia$(camellia_mod_suffix).ko \
	$(if $(call kernel_patchver_ge,3.7),$(LINUX_DIR)/crypto/cast_common.ko) \
	$(LINUX_DIR)/crypto/cast5$(cast56_mod_suffix).ko \
	$(LINUX_DIR)/crypto/cast6$(cast56_mod_suffix).ko \
	$(LINUX_DIR)/crypto/fcrypt.ko \
	$(LINUX_DIR)/crypto/khazad.ko \
	$(LINUX_DIR)/crypto/sha512_generic.ko \
	$(LINUX_DIR)/crypto/tea.ko \
	$(LINUX_DIR)/crypto/tgr192.ko \
	$(LINUX_DIR)/crypto/twofish_common.ko \
	$(LINUX_DIR)/crypto/wp512.ko \
	$(LINUX_DIR)/crypto/twofish_generic.ko \
	$(LINUX_DIR)/crypto/blowfish_common.ko \
	$(LINUX_DIR)/crypto/blowfish_generic.ko \
	$(LINUX_DIR)/crypto/serpent_generic.ko
  $(call AddDepends/crypto)
endef

define KernelPackage/crypto-misc/x86
  FILES+=$(LINUX_DIR)/arch/x86/crypto/twofish-i586.ko
endef

$(eval $(call KernelPackage,crypto-misc))


define KernelPackage/crypto-ocf
  TITLE:=OCF modules
  DEPENDS:=+@OPENSSL_ENGINE_CRYPTO @!TARGET_uml +kmod-crypto-manager
  KCONFIG:= \
	CONFIG_OCF_OCF \
	CONFIG_OCF_CRYPTODEV \
	CONFIG_OCF_CRYPTOSOFT \
	CONFIG_OCF_FIPS=y \
	CONFIG_OCF_RANDOMHARVEST=y
  FILES:= \
	$(LINUX_DIR)/crypto/ocf/ocf.ko \
	$(LINUX_DIR)/crypto/ocf/cryptodev.ko \
	$(LINUX_DIR)/crypto/ocf/cryptosoft.ko
  AUTOLOAD:=$(call AutoLoad,09, \
	ocf \
	cryptodev \
	cryptosoft \
  )
  $(call AddDepends/crypto)
endef

$(eval $(call KernelPackage,crypto-ocf))


define KernelPackage/crypto-ocf-hifn7751
  TITLE:=OCF support for Hifn 6500/7751/7811/795x, Invertex AEON and NetSec 7751 devices
  DEPENDS:=+@OPENSSL_ENGINE_CRYPTO @PCI_SUPPORT @!TARGET_uml kmod-crypto-ocf
  KCONFIG:=CONFIG_OCF_HIFN
  FILES:=$(LINUX_DIR)/crypto/ocf/hifn/hifn7751.ko
  AUTOLOAD:=$(call AutoLoad,10,hifn7751)
  $(call AddDepends/crypto)
endef

$(eval $(call KernelPackage,crypto-ocf-hifn7751))


define KernelPackage/crypto-ocf-hifnhipp
  TITLE:=OCF support for Hifn 7855/8155 devices
  DEPENDS:=+@OPENSSL_ENGINE_CRYPTO @PCI_SUPPORT @!TARGET_uml kmod-crypto-ocf
  KCONFIG:=CONFIG_OCF_HIFNHIPP
  FILES:=$(LINUX_DIR)/crypto/ocf/hifn/hifnHIPP.ko
  AUTOLOAD:=$(call AutoLoad,10,hifnHIPP)
  $(call AddDepends/crypto)
endef

$(eval $(call KernelPackage,crypto-ocf-hifnhipp))


define KernelPackage/crypto-null
  TITLE:=Null CryptoAPI module
  KCONFIG:=CONFIG_CRYPTO_NULL
  FILES:=$(LINUX_DIR)/crypto/crypto_null.ko
  AUTOLOAD:=$(call AutoLoad,09,crypto_null)
  $(call AddDepends/crypto,+kmod-crypto-manager)
endef

$(eval $(call KernelPackage,crypto-null))


define KernelPackage/crypto-test
  TITLE:=Test CryptoAPI module
  KCONFIG:=CONFIG_CRYPTO_TEST
  FILES:=$(LINUX_DIR)/crypto/tcrypt.ko
  $(call AddDepends/crypto,+kmod-crypto-manager)
endef

$(eval $(call KernelPackage,crypto-test))


define KernelPackage/crypto-xts
  TITLE:=XTS cipher CryptoAPI module
  DEPENDS:=+kmod-crypto-manager
  KCONFIG:= \
	CONFIG_CRYPTO_GF128MUL \
	CONFIG_CRYPTO_XTS
  FILES:= \
	$(LINUX_DIR)/crypto/xts.ko \
	$(LINUX_DIR)/crypto/gf128mul.ko
  AUTOLOAD:=$(call AutoLoad,09, \
	gf128mul \
	xts \
  )
  $(call AddDepends/crypto)
endef

$(eval $(call KernelPackage,crypto-xts))


define KernelPackage/crypto-mv-cesa
  TITLE:=Marvell crypto engine
  DEPENDS:=+kmod-crypto-manager +kmod-crypto-aes @TARGET_kirkwood||TARGET_orion||TARGET_mvebu
  KCONFIG:=CONFIG_CRYPTO_DEV_MV_CESA
  FILES:=$(LINUX_DIR)/drivers/crypto/mv_cesa.ko
  AUTOLOAD:=$(call AutoLoad,09,mv_cesa)
  $(call AddDepends/crypto)
endef

$(eval $(call KernelPackage,crypto-mv-cesa))
/******************************************************************************
 * xenctrl.h
 *
 * A library for low-level access to the Xen control interfaces.
 *
 * Copyright (c) 2003-2004, K A Fraser.
 *
 * xc_gnttab functions:
 * Copyright (c) 2007-2008, D G Murray <Derek.Murray@cl.cam.ac.uk>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation;
 * version 2.1 of the License.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */

#ifndef XENCTRL_H
#define XENCTRL_H

/* Tell the Xen public headers we are a user-space tools build. */
#ifndef __XEN_TOOLS__
#define __XEN_TOOLS__ 1
#endif

#include <stddef.h>
#include <stdint.h>
#include <stdio.h>
#include <xen/xen.h>
#include <xen/domctl.h>
#include <xen/physdev.h>
#include <xen/sysctl.h>
#include <xen/version.h>
#include <xen/event_channel.h>
#include <xen/sched.h>
#include <xen/memory.h>
#include <xen/grant_table.h>
#include <xen/hvm/params.h>
#include <xen/xsm/flask_op.h>
#include <xen/tmem.h>

#include "xentoollog.h"

#if defined(__i386__) || defined(__x86_64__)
#include <xen/foreign/x86_32.h>
#include <xen/foreign/x86_64.h>
#include <xen/arch-x86/xen-mca.h>
#endif

#ifdef __ia64__
#define XC_PAGE_SHIFT           14
#else
#define XC_PAGE_SHIFT           12
#endif
#define XC_PAGE_SIZE            (1UL << XC_PAGE_SHIFT)
#define XC_PAGE_MASK            (~(XC_PAGE_SIZE-1))

#define INVALID_MFN  (~0UL)

/*
 *  DEFINITIONS FOR CPU BARRIERS
 */

#if defined(__i386__)
#define xen_mb()  asm volatile ( "lock; addl $0,0(%%esp)" : : : "memory" )
#define xen_rmb() asm volatile ( "lock; addl $0,0(%%esp)" : : : "memory" )
#define xen_wmb() asm volatile ( "" : : : "memory")
#elif defined(__x86_64__)
#define xen_mb()  asm volatile ( "mfence" : : : "memory")
#define xen_rmb() asm volatile ( "lfence" : : : "memory")
#define xen_wmb() asm volatile ( "" : : : "memory")
#elif defined(__ia64__)
#define xen_mb()   asm volatile ("mf" ::: "memory")
#define xen_rmb()  asm volatile ("mf" ::: "memory")
#define xen_wmb()  asm volatile ("mf" ::: "memory")
#else
#error "Define barriers"
#endif


#define XENCTRL_HAS_XC_INTERFACE 1
/* In Xen 4.0 and earlier, xc_interface_open and xc_evtchn_open would
 * both return ints being the file descriptor.  In 4.1 and later, they
 * return an xc_interface* and xc_evtchn*, respectively - ie, a
 * pointer to an opaque struct.  This #define is provided in 4.1 and
 * later, allowing out-of-tree callers to more easily distinguish
 * between, and be compatible with, both versions.
 */


/*
 *  GENERAL
 *
 * Unless otherwise specified, each function here returns zero or a
 * non-null pointer on success; or in case of failure, sets errno and
 * returns -1 or a null pointer.
 *
 * Unless otherwise specified, errors result in a call to the error
 * handler function, which by default prints a message to the
 * FILE* passed as the caller_data, which by default is stderr.
 * (This is described below as "logging errors".)
 *
 * The error handler can safely trash errno, as libxc saves it across
 * the callback.
 */

typedef struct xc_interface_core xc_interface;
typedef struct xc_interface_core xc_evtchn;
typedef struct xc_interface_core xc_gnttab;
typedef enum xc_error_code xc_error_code;


/*
 *  INITIALIZATION FUNCTIONS
 */

/**
 * This function opens a handle to the hypervisor interface.  This function can
 * be called multiple times within a single process.  Multiple processes can
 * have an open hypervisor interface at the same time.
 *
 * Each call to this function should have a corresponding call to
 * xc_interface_close().
 *
 * This function can fail if the caller does not have superuser permission or
 * if a Xen-enabled kernel is not currently running.
 *
 * @return a handle to the hypervisor interface
 */
xc_interface *xc_interface_open(xentoollog_logger *logger,
                                xentoollog_logger *dombuild_logger,
                                unsigned open_flags);
  /* if logger==NULL, will log to stderr
   * if dombuild_logger=NULL, will log to a file
   */

/*
 * Note: if XC_OPENFLAG_NON_REENTRANT is passed then libxc must not be
 * called reentrantly and the calling application is responsible for
 * providing mutual exclusion surrounding all libxc calls itself.
 *
 * In particular xc_{get,clear}_last_error only remain valid for the
 * duration of the critical section containing the call which failed.
 */
enum xc_open_flags {
    XC_OPENFLAG_DUMMY =  1<<0, /* do not actually open a xenctrl interface */
    XC_OPENFLAG_NON_REENTRANT = 1<<1, /* assume library is only every called from a single thread */
};

/**
 * This function closes an open hypervisor interface.
 *
 * This function can fail if the handle does not represent an open interface or
 * if there were problems closing the interface.  In the latter case
 * the interface is still closed.
 *
 * @parm xch a handle to an open hypervisor interface
 * @return 0 on success, -1 otherwise.
 */
int xc_interface_close(xc_interface *xch);

/**
 * Query the active OS interface (i.e. that which would be returned by
 * xc_interface_open) to find out if it is fake (i.e. backends onto
 * something other than an actual Xen hypervisor).
 *
 * @return 0 is "real", >0 if fake, -1 on error.
 */
int xc_interface_is_fake(void);

/*
 * HYPERCALL SAFE MEMORY BUFFER
 *
 * Ensure that memory which is passed to a hypercall has been
 * specially allocated in order to be safe to access from the
 * hypervisor.
 *
 * Each user data pointer is shadowed by an xc_hypercall_buffer data
 * structure. You should never define an xc_hypercall_buffer type
 * directly, instead use the DECLARE_HYPERCALL_BUFFER* macros below.
 *
 * The strucuture should be considered opaque and all access should be
 * via the macros and helper functions defined below.
 *
 * Once the buffer is declared the user is responsible for explicitly
 * allocating and releasing the memory using
 * xc_hypercall_buffer_alloc(_pages) and
 * xc_hypercall_buffer_free(_pages).
 *
 * Once the buffer has been allocated the user can initialise the data
 * via the normal pointer. The xc_hypercall_buffer structure is
 * transparently referenced by the helper macros (such as
 * xen_set_guest_handle) in order to check at compile time that the
 * correct type of memory is being used.
 */
struct xc_hypercall_buffer {
    /* Hypercall safe memory buffer. */
    void *hbuf;

    /*
     * Reference to xc_hypercall_buffer passed as argument to the
     * current function.
     */
    struct xc_hypercall_buffer *param_shadow;

    /*
     * Direction of copy for bounce buffering.
     */
    int dir;

    /* Used iff dir != 0. */
    void *ubuf;
    size_t sz;
};
typedef struct xc_hypercall_buffer xc_hypercall_buffer_t;

/*
 * Construct the name of the hypercall buffer for a given variable.
 * For internal use only
 */
#define XC__HYPERCALL_BUFFER_NAME(_name) xc__hypercall_buffer_##_name

/*
 * Returns the hypercall_buffer associated with a variable.
 */
#define HYPERCALL_BUFFER(_name)                                                              \
    ({  xc_hypercall_buffer_t _val1;                                                         \
        typeof(XC__HYPERCALL_BUFFER_NAME(_name)) *_val2 = &XC__HYPERCALL_BUFFER_NAME(_name); \
        (void)(&_val1 == _val2);                                                             \
        (_val2)->param_shadow ? (_val2)->param_shadow : (_val2);                             \
     })

#define HYPERCALL_BUFFER_INIT_NO_BOUNCE .dir = 0, .sz = 0, .ubuf = (void *)-1

/*
 * Defines a hypercall buffer and user pointer with _name of _type.
 *
 * The user accesses the data as normal via _name which will be
 * transparently converted to the hypercall buffer as necessary.
 */
#define DECLARE_HYPERCALL_BUFFER(_type, _name)                 \
    _type *_name = NULL;                                       \
    xc_hypercall_buffer_t XC__HYPERCALL_BUFFER_NAME(_name) = { \
        .hbuf = NULL,                                          \
        .param_shadow = NULL,                                  \
        HYPERCALL_BUFFER_INIT_NO_BOUNCE                        \
    }

/*
 * Declare the necessary data structure to allow a hypercall buffer
 * passed as an argument to a function to be used in the normal way.
 */
#define DECLARE_HYPERCALL_BUFFER_ARGUMENT(_name)               \
    xc_hypercall_buffer_t XC__HYPERCALL_BUFFER_NAME(_name) = { \
        .hbuf = (void *)-1,                                    \
        .param_shadow = _name,                                 \
        HYPERCALL_BUFFER_INIT_NO_BOUNCE                        \
    }

/*
 * Get the hypercall buffer data pointer in a form suitable for use
 * directly as a hypercall argument.
 */
#define HYPERCALL_BUFFER_AS_ARG(_name)                                             \
    ({  xc_hypercall_buffer_t _val1;                                               \
        typeof(XC__HYPERCALL_BUFFER_NAME(_name)) *_val2 = HYPERCALL_BUFFER(_name); \
        (void)(&_val1 == _val2);                                                   \
        (unsigned long)(_val2)->hbuf;                                              \
     })

/*
 * Set a xen_guest_handle in a type safe manner, ensuring that the
 * data pointer has been correctly allocated.
 */
#undef set_xen_guest_handle
#define set_xen_guest_handle(_hnd, _val)                                         \
    do {                                                                         \
        xc_hypercall_buffer_t _val1;                                             \
        typeof(XC__HYPERCALL_BUFFER_NAME(_val)) *_val2 = HYPERCALL_BUFFER(_val); \
        (void) (&_val1 == _val2);                                                 \
        set_xen_guest_handle_raw(_hnd, (_val2)->hbuf);                           \
    } while (0)

/* Use with set_xen_guest_handle in place of NULL */
extern xc_hypercall_buffer_t XC__HYPERCALL_BUFFER_NAME(HYPERCALL_BUFFER_NULL);

/*
 * Allocate and free hypercall buffers with byte granularity.
 */
void *xc__hypercall_buffer_alloc(xc_interface *xch, xc_hypercall_buffer_t *b, size_t size);
#define xc_hypercall_buffer_alloc(_xch, _name, _size) xc__hypercall_buffer_alloc(_xch, HYPERCALL_BUFFER(_name), _size)
void xc__hypercall_buffer_free(xc_interface *xch, xc_hypercall_buffer_t *b);
#define xc_hypercall_buffer_free(_xch, _name) xc__hypercall_buffer_free(_xch, HYPERCALL_BUFFER(_name))

/*
 * Allocate and free hypercall buffers with page alignment.
 */
void *xc__hypercall_buffer_alloc_pages(xc_interface *xch, xc_hypercall_buffer_t *b, int nr_pages);
#define xc_hypercall_buffer_alloc_pages(_xch, _name, _nr) xc__hypercall_buffer_alloc_pages(_xch, HYPERCALL_BUFFER(_name), _nr)
void xc__hypercall_buffer_free_pages(xc_interface *xch, xc_hypercall_buffer_t *b, int nr_pages);
#define xc_hypercall_buffer_free_pages(_xch, _name, _nr) xc__hypercall_buffer_free_pages(_xch, HYPERCALL_BUFFER(_name), _nr)

/*
 * CPUMAP handling
 */
typedef uint8_t *xc_cpumap_t;

/* return maximum number of cpus the hypervisor supports */
int xc_get_max_cpus(xc_interface *xch);

/* return array size for cpumap */
int xc_get_cpumap_size(xc_interface *xch);

/* allocate a cpumap */
xc_cpumap_t xc_cpumap_alloc(xc_interface *xch);

/*
 * DOMAIN DEBUGGING FUNCTIONS
 */

typedef struct xc_core_header {
    unsigned int xch_magic;
    unsigned int xch_nr_vcpus;
    unsigned int xch_nr_pages;
    unsigned int xch_ctxt_offset;
    unsigned int xch_index_offset;
    unsigned int xch_pages_offset;
} xc_core_header_t;

#define XC_CORE_MAGIC     0xF00FEBED
#define XC_CORE_MAGIC_HVM 0xF00FEBEE

/*
 * DOMAIN MANAGEMENT FUNCTIONS
 */

typedef struct xc_dominfo {
    uint32_t      domid;
    uint32_t      ssidref;
    unsigned int  dying:1, crashed:1, shutdown:1,
                  paused:1, blocked:1, running:1,
                  hvm:1, debugged:1;
    unsigned int  shutdown_reason; /* only meaningful if shutdown==1 */
    unsigned long nr_pages; /* current number, not maximum */
    unsigned long nr_shared_pages;
    unsigned long shared_info_frame;
    uint64_t      cpu_time;
    unsigned long max_memkb;
    unsigned int  nr_online_vcpus;
    unsigned int  max_vcpu_id;
    xen_domain_handle_t handle;
    unsigned int  cpupool;
} xc_dominfo_t;

typedef xen_domctl_getdomaininfo_t xc_domaininfo_t;

typedef union 
{
#if defined(__i386__) || defined(__x86_64__)
    vcpu_guest_context_x86_64_t x64;
    vcpu_guest_context_x86_32_t x32;   
#endif
    vcpu_guest_context_t c;
} vcpu_guest_context_any_t;

typedef union
{
#if defined(__i386__) || defined(__x86_64__)
    shared_info_x86_64_t x64;
    shared_info_x86_32_t x32;
#endif
    shared_info_t s;
} shared_info_any_t;

typedef union
{
#if defined(__i386__) || defined(__x86_64__)
    start_info_x86_64_t x64;
    start_info_x86_32_t x32;
#endif
    start_info_t s;
} start_info_any_t;


int xc_domain_create(xc_interface *xch,
                     uint32_t ssidref,
                     xen_domain_handle_t handle,
                     uint32_t flags,
                     uint32_t *pdomid);


/* Functions to produce a dump of a given domain
 *  xc_domain_dumpcore - produces a dump to a specified file
 *  xc_domain_dumpcore_via_callback - produces a dump, using a specified
 *                                    callback function
 */
int xc_domain_dumpcore(xc_interface *xch,
                       uint32_t domid,
                       const char *corename);

/* Define the callback function type for xc_domain_dumpcore_via_callback.
 *
 * This function is called by the coredump code for every "write",
 * and passes an opaque object for the use of the function and
 * created by the caller of xc_domain_dumpcore_via_callback.
 */
typedef int (dumpcore_rtn_t)(xc_interface *xch,
                             void *arg, char *buffer, unsigned int length);

int xc_domain_dumpcore_via_callback(xc_interface *xch,
                                    uint32_t domid,
                                    void *arg,
                                    dumpcore_rtn_t dump_rtn);

/*
 * This function sets the maximum number of vcpus that a domain may create.
 *
 * @parm xch a handle to an open hypervisor interface.
 * @parm domid the domain id in which vcpus are to be created.
 * @parm max the maximum number of vcpus that the domain may create.
 * @return 0 on success, -1 on failure.
 */
int xc_domain_max_vcpus(xc_interface *xch,
                        uint32_t domid,
                        unsigned int max);

/**
 * This function pauses a domain. A paused domain still exists in memory
 * however it does not receive any timeslices from the hypervisor.
 *
 * @parm xch a handle to an open hypervisor interface
 * @parm domid the domain id to pause
 * @return 0 on success, -1 on failure.
 */
int xc_domain_pause(xc_interface *xch,
                    uint32_t domid);
/**
 * This function unpauses a domain.  The domain should have been previously
 * paused.
 *
 * @parm xch a handle to an open hypervisor interface
 * @parm domid the domain id to unpause
 * return 0 on success, -1 on failure
 */
int xc_domain_unpause(xc_interface *xch,
                      uint32_t domid);

/**
 * This function will destroy a domain.  Destroying a domain removes the domain
 * completely from memory.  This function should be called after sending the
 * domain a SHUTDOWN control message to free up the domain resources.
 *
 * @parm xch a handle to an open hypervisor interface
 * @parm domid the domain id to destroy
 * @return 0 on success, -1 on failure
 */
int xc_domain_destroy(xc_interface *xch,
                      uint32_t domid);


/**
 * This function resumes a suspended domain. The domain should have
 * been previously suspended.
 *
 * @parm xch a handle to an open hypervisor interface
 * @parm domid the domain id to resume
 * @parm fast use cooperative resume (guest must support this)
 * return 0 on success, -1 on failure
 */
int xc_domain_resume(xc_interface *xch,
		     uint32_t domid,
		     int fast);

/**
 * This function will shutdown a domain. This is intended for use in
 * fully-virtualized domains where this operation is analogous to the
 * sched_op operations in a paravirtualized domain. The caller is
 * expected to give the reason for the shutdown.
 *
 * @parm xch a handle to an open hypervisor interface
 * @parm domid the domain id to destroy
 * @parm reason is the reason (SHUTDOWN_xxx) for the shutdown
 * @return 0 on success, -1 on failure
 */
int xc_domain_shutdown(xc_interface *xch,
                       uint32_t domid,
                       int reason);

int xc_watchdog(xc_interface *xch,
		uint32_t id,
		uint32_t timeout);

int xc_vcpu_setaffinity(xc_interface *xch,
                        uint32_t domid,
                        int vcpu,
                        xc_cpumap_t cpumap);
int xc_vcpu_getaffinity(xc_interface *xch,
                        uint32_t domid,
                        int vcpu,
                        xc_cpumap_t cpumap);

/**
 * This function will return information about one or more domains. It is
 * designed to iterate over the list of domains. If a single domain is
 * requested, this function will return the next domain in the list - if
 * one exists. It is, therefore, important in this case to make sure the
 * domain requested was the one returned.
 *
 * @parm xch a handle to an open hypervisor interface
 * @parm first_domid the first domain to enumerate information from.  Domains
 *                   are currently enumerate in order of creation.
 * @parm max_doms the number of elements in info
 * @parm info an array of max_doms size that will contain the information for
 *            the enumerated domains.
 * @return the number of domains enumerated or -1 on error
 */
int xc_domain_getinfo(xc_interface *xch,
                      uint32_t first_domid,
                      unsigned int max_doms,
                      xc_dominfo_t *info);


/**
 * This function will set the execution context for the specified vcpu.
 *
 * @parm xch a handle to an open hypervisor interface
 * @parm domid the domain to set the vcpu context for
 * @parm vcpu the vcpu number for the context
 * @parm ctxt pointer to the the cpu context with the values to set
 * @return the number of domains enumerated or -1 on error
 */
int xc_vcpu_setcontext(xc_interface *xch,
                       uint32_t domid,
                       uint32_t vcpu,
                       vcpu_guest_context_any_t *ctxt);
/**
 * This function will return information about one or more domains, using a
 * single hypercall.  The domain information will be stored into the supplied
 * array of xc_domaininfo_t structures.
 *
 * @parm xch a handle to an open hypervisor interface
 * @parm first_domain the first domain to enumerate information from.
 *                    Domains are currently enumerate in order of creation.
 * @parm max_domains the number of elements in info
 * @parm info an array of max_doms size that will contain the information for
 *            the enumerated domains.
 * @return the number of domains enumerated or -1 on error
 */
int xc_domain_getinfolist(xc_interface *xch,
                          uint32_t first_domain,
                          unsigned int max_domains,
                          xc_domaininfo_t *info);

/**
 * This function returns information about the context of a hvm domain
 * @parm xch a handle to an open hypervisor interface
 * @parm domid the domain to get information from
 * @parm ctxt_buf a pointer to a structure to store the execution context of
 *            the hvm domain
 * @parm size the size of ctxt_buf in bytes
 * @return 0 on success, -1 on failure
 */
int xc_domain_hvm_getcontext(xc_interface *xch,
                             uint32_t domid,
                             uint8_t *ctxt_buf,
                             uint32_t size);


/**
 * This function returns one element of the context of a hvm domain
 * @parm xch a handle to an open hypervisor interface
 * @parm domid the domain to get information from
 * @parm typecode which type of elemnt required 
 * @parm instance which instance of the type
 * @parm ctxt_buf a pointer to a structure to store the execution context of
 *            the hvm domain
 * @parm size the size of ctxt_buf (must be >= HVM_SAVE_LENGTH(typecode))
 * @return 0 on success, -1 on failure
 */
int xc_domain_hvm_getcontext_partial(xc_interface *xch,
                                     uint32_t domid,
                                     uint16_t typecode,
                                     uint16_t instance,
                                     void *ctxt_buf,
                                     uint32_t size);

/**
 * This function will set the context for hvm domain
 *
 * @parm xch a handle to an open hypervisor interface
 * @parm domid the domain to set the hvm domain context for
 * @parm hvm_ctxt pointer to the the hvm context with the values to set
 * @parm size the size of hvm_ctxt in bytes
 * @return 0 on success, -1 on failure
 */
int xc_domain_hvm_setcontext(xc_interface *xch,
                             uint32_t domid,
                             uint8_t *hvm_ctxt,
                             uint32_t size);

/**
 * This function returns information about the execution context of a
 * particular vcpu of a domain.
 *
 * @parm xch a handle to an open hypervisor interface
 * @parm domid the domain to get information from
 * @parm vcpu the vcpu number
 * @parm ctxt a pointer to a structure to store the execution context of the
 *            domain
 * @return 0 on success, -1 on failure
 */
int xc_vcpu_getcontext(xc_interface *xch,
                       uint32_t domid,
                       uint32_t vcpu,
                       vcpu_guest_context_any_t *ctxt);

typedef xen_domctl_getvcpuinfo_t xc_vcpuinfo_t;
int xc_vcpu_getinfo(xc_interface *xch,
                    uint32_t domid,
                    uint32_t vcpu,
                    xc_vcpuinfo_t *info);

long long xc_domain_get_cpu_usage(xc_interface *xch,
                                  domid_t domid,
                                  int vcpu);

int xc_domain_sethandle(xc_interface *xch, uint32_t domid,
                        xen_domain_handle_t handle);

typedef xen_domctl_shadow_op_stats_t xc_shadow_op_stats_t;
int xc_shadow_control(xc_interface *xch,
                      uint32_t domid,
                      unsigned int sop,
                      xc_hypercall_buffer_t *dirty_bitmap,
                      unsigned long pages,
                      unsigned long *mb,
                      uint32_t mode,
                      xc_shadow_op_stats_t *stats);

int xc_sedf_domain_set(xc_interface *xch,
                       uint32_t domid,
                       uint64_t period, uint64_t slice,
                       uint64_t latency, uint16_t extratime,
                       uint16_t weight);

int xc_sedf_domain_get(xc_interface *xch,
                       uint32_t domid,
                       uint64_t* period, uint64_t *slice,
                       uint64_t *latency, uint16_t *extratime,
                       uint16_t *weight);

int xc_sched_credit_domain_set(xc_interface *xch,
                               uint32_t domid,
                               struct xen_domctl_sched_credit *sdom);

int xc_sched_credit_domain_get(xc_interface *xch,
                               uint32_t domid,
                               struct xen_domctl_sched_credit *sdom);

int xc_sched_credit2_domain_set(xc_interface *xch,
                               uint32_t domid,
                               struct xen_domctl_sched_credit2 *sdom);

int xc_sched_credit2_domain_get(xc_interface *xch,
                               uint32_t domid,
                               struct xen_domctl_sched_credit2 *sdom);

int
xc_sched_arinc653_schedule_set(
    xc_interface *xch,
    struct xen_sysctl_arinc653_schedule *schedule);

int
xc_sched_arinc653_schedule_get(
    xc_interface *xch,
    struct xen_sysctl_arinc653_schedule *schedule);

/**
 * This function sends a trigger to a domain.
 *
 * @parm xch a handle to an open hypervisor interface
 * @parm domid the domain id to send trigger
 * @parm trigger the trigger type
 * @parm vcpu the vcpu number to send trigger 
 * return 0 on success, -1 on failure
 */
int xc_domain_send_trigger(xc_interface *xch,
                           uint32_t domid,
                           uint32_t trigger,
                           uint32_t vcpu);

/**
 * This function enables or disable debugging of a domain.
 *
 * @parm xch a handle to an open hypervisor interface
 * @parm domid the domain id to send trigger
 * @parm enable true to enable debugging
 * return 0 on success, -1 on failure
 */
int xc_domain_setdebugging(xc_interface *xch,
                           uint32_t domid,
                           unsigned int enable);

/**
 * This function sets or clears the requirement that an access memory
 * event listener is required on the domain.
 *
 * @parm xch a handle to an open hypervisor interface
 * @parm domid the domain id to send trigger
 * @parm enable true to require a listener
 * return 0 on success, -1 on failure
 */
int xc_domain_set_access_required(xc_interface *xch,
				  uint32_t domid,
				  unsigned int required);

/*
 * CPUPOOL MANAGEMENT FUNCTIONS
 */

typedef struct xc_cpupoolinfo {
    uint32_t cpupool_id;
    uint32_t sched_id;
    uint32_t n_dom;
    xc_cpumap_t cpumap;
} xc_cpupoolinfo_t;

/**
 * Create a new cpupool.
 *
 * @parm xc_handle a handle to an open hypervisor interface
 * @parm ppoolid pointer to the new cpupool id (in/out)
 * @parm sched_id id of scheduler to use for pool
 * return 0 on success, -1 on failure
 */
int xc_cpupool_create(xc_interface *xch,
                      uint32_t *ppoolid,
                      uint32_t sched_id);

/**
 * Destroy a cpupool. Pool must be unused and have no cpu assigned.
 *
 * @parm xc_handle a handle to an open hypervisor interface
 * @parm poolid id of the cpupool to destroy
 * return 0 on success, -1 on failure
 */
int xc_cpupool_destroy(xc_interface *xch,
                       uint32_t poolid);

/**
 * Get cpupool info. Returns info for up to the specified number of cpupools
 * starting at the given id.
 * @parm xc_handle a handle to an open hypervisor interface
 * @parm poolid lowest id for which info is returned
 * return cpupool info ptr (to be freed via xc_cpupool_infofree)
 */
xc_cpupoolinfo_t *xc_cpupool_getinfo(xc_interface *xch,
                       uint32_t poolid);

/**
 * Free cpupool info. Used to free info obtained via xc_cpupool_getinfo.
 * @parm xc_handle a handle to an open hypervisor interface
 * @parm info area to free
 */
void xc_cpupool_infofree(xc_interface *xch,
                         xc_cpupoolinfo_t *info);

/**
 * Add cpu to a cpupool. cpu may be -1 indicating the first unassigned.
 *
 * @parm xc_handle a handle to an open hypervisor interface
 * @parm poolid id of the cpupool
 * @parm cpu cpu number to add
 * return 0 on success, -1 on failure
 */
int xc_cpupool_addcpu(xc_interface *xch,
                      uint32_t poolid,
                      int cpu);

/**
 * Remove cpu from cpupool. cpu may be -1 indicating the last cpu of the pool.
 *
 * @parm xc_handle a handle to an open hypervisor interface
 * @parm poolid id of the cpupool
 * @parm cpu cpu number to remove
 * return 0 on success, -1 on failure
 */
int xc_cpupool_removecpu(xc_interface *xch,
                         uint32_t poolid,
                         int cpu);

/**
 * Move domain to another cpupool.
 *
 * @parm xc_handle a handle to an open hypervisor interface
 * @parm poolid id of the destination cpupool
 * @parm domid id of the domain to move
 * return 0 on success, -1 on failure
 */
int xc_cpupool_movedomain(xc_interface *xch,
                          uint32_t poolid,
                          uint32_t domid);

/**
 * Return map of cpus not in any cpupool.
 *
 * @parm xc_handle a handle to an open hypervisor interface
 * return cpumap array on success, NULL else
 */
xc_cpumap_t xc_cpupool_freeinfo(xc_interface *xch);


/*
 * EVENT CHANNEL FUNCTIONS
 *
 * None of these do any logging.
 */

/* A port identifier is guaranteed to fit in 31 bits. */
typedef int evtchn_port_or_error_t;

/**
 * This function allocates an unbound port.  Ports are named endpoints used for
 * interdomain communication.  This function is most useful in opening a
 * well-known port within a domain to receive events on.
 * 
 * NOTE: If you are allocating a *local* unbound port, you probably want to
 * use xc_evtchn_bind_unbound_port(). This function is intended for allocating
 * ports *only* during domain creation.
 *
 * @parm xch a handle to an open hypervisor interface
 * @parm dom the ID of the local domain (the 'allocatee')
 * @parm remote_dom the ID of the domain who will later bind
 * @return allocated port (in @dom) on success, -1 on failure
 */
evtchn_port_or_error_t
xc_evtchn_alloc_unbound(xc_interface *xch,
                        uint32_t dom,
                        uint32_t remote_dom);

int xc_evtchn_reset(xc_interface *xch,
                    uint32_t dom);

typedef struct evtchn_status xc_evtchn_status_t;
int xc_evtchn_status(xc_interface *xch, xc_evtchn_status_t *status);

/*
 * Return a handle to the event channel driver, or -1 on failure, in which case
 * errno will be set appropriately.
 *
 * Before Xen pre-4.1 this function would sometimes report errors with perror.
 */
xc_evtchn *xc_evtchn_open(xentoollog_logger *logger,
                             unsigned open_flags);

/*
 * Close a handle previously allocated with xc_evtchn_open().
 */
int xc_evtchn_close(xc_evtchn *xce);

/*
 * Return an fd that can be select()ed on.
 */
int xc_evtchn_fd(xc_evtchn *xce);

/*
 * Notify the given event channel. Returns -1 on failure, in which case
 * errno will be set appropriately.
 */
int xc_evtchn_notify(xc_evtchn *xce, evtchn_port_t port);

/*
 * Returns a new event port awaiting interdomain connection from the given
 * domain ID, or -1 on failure, in which case errno will be set appropriately.
 */
evtchn_port_or_error_t
xc_evtchn_bind_unbound_port(xc_evtchn *xce, int domid);

/*
 * Returns a new event port bound to the remote port for the given domain ID,
 * or -1 on failure, in which case errno will be set appropriately.
 */
evtchn_port_or_error_t
xc_evtchn_bind_interdomain(xc_evtchn *xce, int domid,
                           evtchn_port_t remote_port);

/*
 * Bind an event channel to the given VIRQ. Returns the event channel bound to
 * the VIRQ, or -1 on failure, in which case errno will be set appropriately.
 */
evtchn_port_or_error_t
xc_evtchn_bind_virq(xc_evtchn *xce, unsigned int virq);

/*
 * Unbind the given event channel. Returns -1 on failure, in which case errno
 * will be set appropriately.
 */
int xc_evtchn_unbind(xc_evtchn *xce, evtchn_port_t port);

/*
 * Return the next event channel to become pending, or -1 on failure, in which
 * case errno will be set appropriately.  
 */
evtchn_port_or_error_t
xc_evtchn_pending(xc_evtchn *xce);

/*
 * Unmask the given event channel. Returns -1 on failure, in which case errno
 * will be set appropriately.
 */
int xc_evtchn_unmask(xc_evtchn *xce, evtchn_port_t port);

int xc_physdev_pci_access_modify(xc_interface *xch,
                                 uint32_t domid,
                                 int bus,
                                 int dev,
                                 int func,
                                 int enable);

int xc_readconsolering(xc_interface *xch,
                       char *buffer,
                       unsigned int *pnr_chars,
                       int clear, int incremental, uint32_t *pindex);

int xc_send_debug_keys(xc_interface *xch, char *keys);

typedef xen_sysctl_physinfo_t xc_physinfo_t;
typedef xen_sysctl_topologyinfo_t xc_topologyinfo_t;
typedef xen_sysctl_numainfo_t xc_numainfo_t;

typedef uint32_t xc_cpu_to_node_t;
typedef uint32_t xc_cpu_to_socket_t;
typedef uint32_t xc_cpu_to_core_t;
typedef uint64_t xc_node_to_memsize_t;
typedef uint64_t xc_node_to_memfree_t;
typedef uint32_t xc_node_to_node_dist_t;

int xc_physinfo(xc_interface *xch, xc_physinfo_t *info);
int xc_topologyinfo(xc_interface *xch, xc_topologyinfo_t *info);
int xc_numainfo(xc_interface *xch, xc_numainfo_t *info);

int xc_sched_id(xc_interface *xch,
                int *sched_id);

int xc_machphys_mfn_list(xc_interface *xch,
                         unsigned long max_extents,
                         xen_pfn_t *extent_start);

typedef xen_sysctl_cpuinfo_t xc_cpuinfo_t;
int xc_getcpuinfo(xc_interface *xch, int max_cpus,
                  xc_cpuinfo_t *info, int *nr_cpus); 

int xc_domain_setmaxmem(xc_interface *xch,
                        uint32_t domid,
                        unsigned int max_memkb);

int xc_domain_set_memmap_limit(xc_interface *xch,
                               uint32_t domid,
                               unsigned long map_limitkb);

#if defined(__i386__) || defined(__x86_64__)
/*
 * PC BIOS standard E820 types and structure.
 */
#define E820_RAM          1
#define E820_RESERVED     2
#define E820_ACPI         3
#define E820_NVS          4
#define E820_UNUSABLE     5

#define E820MAX           (128)

struct e820entry {
    uint64_t addr;
    uint64_t size;
    uint32_t type;
} __attribute__((packed));
int xc_domain_set_memory_map(xc_interface *xch,
                               uint32_t domid,
                               struct e820entry entries[],
                               uint32_t nr_entries);

int xc_get_machine_memory_map(xc_interface *xch,
                              struct e820entry entries[],
                              uint32_t max_entries);
#endif
int xc_domain_set_time_offset(xc_interface *xch,
                              uint32_t domid,
                              int32_t time_offset_seconds);

int xc_domain_set_tsc_info(xc_interface *xch,
                           uint32_t domid,
                           uint32_t tsc_mode,
                           uint64_t elapsed_nsec,
                           uint32_t gtsc_khz,
                           uint32_t incarnation);

int xc_domain_get_tsc_info(xc_interface *xch,
                           uint32_t domid,
                           uint32_t *tsc_mode,
                           uint64_t *elapsed_nsec,
                           uint32_t *gtsc_khz,
                           uint32_t *incarnation);

int xc_domain_disable_migrate(xc_interface *xch, uint32_t domid);

int xc_domain_maximum_gpfn(xc_interface *xch, domid_t domid);

int xc_domain_increase_reservation(xc_interface *xch,
                                   uint32_t domid,
                                   unsigned long nr_extents,
                                   unsigned int extent_order,
                                   unsigned int mem_flags,
                                   xen_pfn_t *extent_start);

int xc_domain_increase_reservation_exact(xc_interface *xch,
                                         uint32_t domid,
                                         unsigned long nr_extents,
                                         unsigned int extent_order,
                                         unsigned int mem_flags,
                                         xen_pfn_t *extent_start);

int xc_domain_decrease_reservation(xc_interface *xch,
                                   uint32_t domid,
                                   unsigned long nr_extents,
                                   unsigned int extent_order,
                                   xen_pfn_t *extent_start);

int xc_domain_decrease_reservation_exact(xc_interface *xch,
                                         uint32_t domid,
                                         unsigned long nr_extents,
                                         unsigned int extent_order,
                                         xen_pfn_t *extent_start);

int xc_domain_add_to_physmap(xc_interface *xch,
                             uint32_t domid,
                             unsigned int space,
                             unsigned long idx,
                             xen_pfn_t gpfn);

int xc_domain_populate_physmap(xc_interface *xch,
                               uint32_t domid,
                               unsigned long nr_extents,
                               unsigned int extent_order,
                               unsigned int mem_flags,
                               xen_pfn_t *extent_start);

int xc_domain_populate_physmap_exact(xc_interface *xch,
                                     uint32_t domid,
                                     unsigned long nr_extents,
                                     unsigned int extent_order,
                                     unsigned int mem_flags,
                                     xen_pfn_t *extent_start);

int xc_domain_memory_exchange_pages(xc_interface *xch,
                                    int domid,
                                    unsigned long nr_in_extents,
                                    unsigned int in_order,
                                    xen_pfn_t *in_extents,
                                    unsigned long nr_out_extents,
                                    unsigned int out_order,
                                    xen_pfn_t *out_extents);

int xc_domain_set_pod_target(xc_interface *xch,
                             uint32_t domid,
                             uint64_t target_pages,
                             uint64_t *tot_pages,
                             uint64_t *pod_cache_pages,
                             uint64_t *pod_entries);

int xc_domain_get_pod_target(xc_interface *xch,
                             uint32_t domid,
                             uint64_t *tot_pages,
                             uint64_t *pod_cache_pages,
                             uint64_t *pod_entries);

int xc_domain_ioport_permission(xc_interface *xch,
                                uint32_t domid,
                                uint32_t first_port,
                                uint32_t nr_ports,
                                uint32_t allow_access);

int xc_domain_irq_permission(xc_interface *xch,
                             uint32_t domid,
                             uint8_t pirq,
                             uint8_t allow_access);

int xc_domain_iomem_permission(xc_interface *xch,
                               uint32_t domid,
                               unsigned long first_mfn,
                               unsigned long nr_mfns,
                               uint8_t allow_access);

int xc_domain_pin_memory_cacheattr(xc_interface *xch,
                                   uint32_t domid,
                                   uint64_t start,
                                   uint64_t end,
                                   uint32_t type);

unsigned long xc_make_page_below_4G(xc_interface *xch, uint32_t domid,
                                    unsigned long mfn);

typedef xen_sysctl_perfc_desc_t xc_perfc_desc_t;
typedef xen_sysctl_perfc_val_t xc_perfc_val_t;
int xc_perfc_reset(xc_interface *xch);
int xc_perfc_query_number(xc_interface *xch,
                          int *nbr_desc,
                          int *nbr_val);
int xc_perfc_query(xc_interface *xch,
                   xc_hypercall_buffer_t *desc,
                   xc_hypercall_buffer_t *val);

typedef xen_sysctl_lockprof_data_t xc_lockprof_data_t;
int xc_lockprof_reset(xc_interface *xch);
int xc_lockprof_query_number(xc_interface *xch,
                             uint32_t *n_elems);
int xc_lockprof_query(xc_interface *xch,
                      uint32_t *n_elems,
                      uint64_t *time,
                      xc_hypercall_buffer_t *data);

/**
 * Memory maps a range within one domain to a local address range.  Mappings
 * should be unmapped with munmap and should follow the same rules as mmap
 * regarding page alignment.  Returns NULL on failure.
 *
 * @parm xch a handle on an open hypervisor interface
 * @parm dom the domain to map memory from
 * @parm size the amount of memory to map (in multiples of page size)
 * @parm prot same flag as in mmap().
 * @parm mfn the frame address to map.
 */
void *xc_map_foreign_range(xc_interface *xch, uint32_t dom,
                            int size, int prot,
                            unsigned long mfn );

void *xc_map_foreign_pages(xc_interface *xch, uint32_t dom, int prot,
                           const xen_pfn_t *arr, int num );

/**
 * DEPRECATED - use xc_map_foreign_bulk() instead.
 *
 * Like xc_map_foreign_pages(), except it can succeeed partially.
 * When a page cannot be mapped, its PFN in @arr is or'ed with
 * 0xF0000000 to indicate the error.
 */
void *xc_map_foreign_batch(xc_interface *xch, uint32_t dom, int prot,
                           xen_pfn_t *arr, int num );

/**
 * Like xc_map_foreign_pages(), except it can succeed partially.
 * When a page cannot be mapped, its respective field in @err is
 * set to the corresponding errno value.
 */
void *xc_map_foreign_bulk(xc_interface *xch, uint32_t dom, int prot,
                          const xen_pfn_t *arr, int *err, unsigned int num);

/**
 * Translates a virtual address in the context of a given domain and
 * vcpu returning the GFN containing the address (that is, an MFN for 
 * PV guests, a PFN for HVM guests).  Returns 0 for failure.
 *
 * @parm xch a handle on an open hypervisor interface
 * @parm dom the domain to perform the translation in
 * @parm vcpu the vcpu to perform the translation on
 * @parm virt the virtual address to translate
 */
unsigned long xc_translate_foreign_address(xc_interface *xch, uint32_t dom,
                                           int vcpu, unsigned long long virt);


/**
 * DEPRECATED.  Avoid using this, as it does not correctly account for PFNs
 * without a backing MFN.
 */
int xc_get_pfn_list(xc_interface *xch, uint32_t domid, uint64_t *pfn_buf,
                    unsigned long max_pfns);

unsigned long xc_ia64_fpsr_default(void);

int xc_copy_to_domain_page(xc_interface *xch, uint32_t domid,
                           unsigned long dst_pfn, const char *src_page);

int xc_clear_domain_page(xc_interface *xch, uint32_t domid,
                         unsigned long dst_pfn);

int xc_mmuext_op(xc_interface *xch, struct mmuext_op *op, unsigned int nr_ops,
                 domid_t dom);

/* System wide memory properties */
long xc_maximum_ram_page(xc_interface *xch);

/* Get current total pages allocated to a domain. */
long xc_get_tot_pages(xc_interface *xch, uint32_t domid);

/**
 * This function retrieves the the number of bytes available
 * in the heap in a specific range of address-widths and nodes.
 * 
 * @parm xch a handle to an open hypervisor interface
 * @parm domid the domain to query
 * @parm min_width the smallest address width to query (0 if don't care)
 * @parm max_width the largest address width to query (0 if don't care)
 * @parm node the node to query (-1 for all)
 * @parm *bytes caller variable to put total bytes counted
 * @return 0 on success, <0 on failure.
 */
int xc_availheap(xc_interface *xch, int min_width, int max_width, int node,
                 uint64_t *bytes);

/*
 * Trace Buffer Operations
 */

/**
 * xc_tbuf_enable - enable tracing buffers
 *
 * @parm xch a handle to an open hypervisor interface
 * @parm cnt size of tracing buffers to create (in pages)
 * @parm mfn location to store mfn of the trace buffers to
 * @parm size location to store the size (in bytes) of a trace buffer to
 *
 * Gets the machine address of the trace pointer area and the size of the
 * per CPU buffers.
 */
int xc_tbuf_enable(xc_interface *xch, unsigned long pages,
                   unsigned long *mfn, unsigned long *size);

/*
 * Disable tracing buffers.
 */
int xc_tbuf_disable(xc_interface *xch);

/**
 * This function sets the size of the trace buffers. Setting the size
 * is currently a one-shot operation that may be performed either at boot
 * time or via this interface, not both. The buffer size must be set before
 * enabling tracing.
 *
 * @parm xch a handle to an open hypervisor interface
 * @parm size the size in pages per cpu for the trace buffers
 * @return 0 on success, -1 on failure.
 */
int xc_tbuf_set_size(xc_interface *xch, unsigned long size);

/**
 * This function retrieves the current size of the trace buffers.
 * Note that the size returned is in terms of bytes, not pages.

 * @parm xch a handle to an open hypervisor interface
 * @parm size will contain the size in bytes for the trace buffers
 * @return 0 on success, -1 on failure.
 */
int xc_tbuf_get_size(xc_interface *xch, unsigned long *size);

int xc_tbuf_set_cpu_mask(xc_interface *xch, uint32_t mask);

int xc_tbuf_set_evt_mask(xc_interface *xch, uint32_t mask);

int xc_domctl(xc_interface *xch, struct xen_domctl *domctl);
int xc_sysctl(xc_interface *xch, struct xen_sysctl *sysctl);

int xc_version(xc_interface *xch, int cmd, void *arg);

int xc_flask_op(xc_interface *xch, flask_op_t *op);

/*
 * Subscribe to state changes in a domain via evtchn.
 * Returns -1 on failure, in which case errno will be set appropriately.
 */
int xc_domain_subscribe_for_suspend(
    xc_interface *xch, domid_t domid, evtchn_port_t port);

/**************************
 * GRANT TABLE OPERATIONS *
 **************************/

/*
 * These functions sometimes log messages as above, but not always.
 */

/*
 * Return an fd onto the grant table driver.  Logs errors.
 */
xc_gnttab *xc_gnttab_open(xentoollog_logger *logger,
			  unsigned open_flags);

/*
 * Close a handle previously allocated with xc_gnttab_open().
 * Never logs errors.
 */
int xc_gnttab_close(xc_gnttab *xcg);

/*
 * Memory maps a grant reference from one domain to a local address range.
 * Mappings should be unmapped with xc_gnttab_munmap.  Logs errors.
 *
 * @parm xcg a handle on an open grant table interface
 * @parm domid the domain to map memory from
 * @parm ref the grant reference ID to map
 * @parm prot same flag as in mmap()
 */
void *xc_gnttab_map_grant_ref(xc_gnttab *xcg,
                              uint32_t domid,
                              uint32_t ref,
                              int prot);

/**
 * Memory maps one or more grant references from one or more domains to a
 * contiguous local address range. Mappings should be unmapped with
 * xc_gnttab_munmap.  Logs errors.
 *
 * @parm xcg a handle on an open grant table interface
 * @parm count the number of grant references to be mapped
 * @parm domids an array of @count domain IDs by which the corresponding @refs
 *              were granted
 * @parm refs an array of @count grant references to be mapped
 * @parm prot same flag as in mmap()
 */
void *xc_gnttab_map_grant_refs(xc_gnttab *xcg,
                               uint32_t count,
                               uint32_t *domids,
                               uint32_t *refs,
                               int prot);

/**
 * Memory maps one or more grant references from one domain to a
 * contiguous local address range. Mappings should be unmapped with
 * xc_gnttab_munmap.  Logs errors.
 *
 * @parm xcg a handle on an open grant table interface
 * @parm count the number of grant references to be mapped
 * @parm domid the domain to map memory from
 * @parm refs an array of @count grant references to be mapped
 * @parm prot same flag as in mmap()
 */
void *xc_gnttab_map_domain_grant_refs(xc_gnttab *xcg,
                                      uint32_t count,
                                      uint32_t domid,
                                      uint32_t *refs,
                                      int prot);

/*
 * Unmaps the @count pages starting at @start_address, which were mapped by a
 * call to xc_gnttab_map_grant_ref or xc_gnttab_map_grant_refs. Never logs.
 */
int xc_gnttab_munmap(xc_gnttab *xcg,
                     void *start_address,
                     uint32_t count);

/*
 * Sets the maximum number of grants that may be mapped by the given instance
 * to @count.  Never logs.
 *
 * N.B. This function must be called after opening the handle, and before any
 *      other functions are invoked on it.
 *
 * N.B. When variable-length grants are mapped, fragmentation may be observed,
 *      and it may not be possible to satisfy requests up to the maximum number
 *      of grants.
 */
int xc_gnttab_set_max_grants(xc_gnttab *xcg,
			     uint32_t count);

int xc_gnttab_op(xc_interface *xch, int cmd,
                 void * op, int op_size, int count);
/* Logs iff hypercall bounce fails, otherwise doesn't. */

int xc_gnttab_get_version(xc_interface *xch, int domid); /* Never logs */
grant_entry_v1_t *xc_gnttab_map_table_v1(xc_interface *xch, int domid, int *gnt_num);
grant_entry_v2_t *xc_gnttab_map_table_v2(xc_interface *xch, int domid, int *gnt_num);
/* Sometimes these don't set errno [fixme], and sometimes they don't log. */

int xc_physdev_map_pirq(xc_interface *xch,
                        int domid,
                        int index,
                        int *pirq);

int xc_physdev_map_pirq_msi(xc_interface *xch,
                            int domid,
                            int index,
                            int *pirq,
                            int devfn,
                            int bus,
                            int entry_nr,
                            uint64_t table_base);

int xc_physdev_unmap_pirq(xc_interface *xch,
                          int domid,
                          int pirq);

int xc_hvm_set_pci_intx_level(
    xc_interface *xch, domid_t dom,
    uint8_t domain, uint8_t bus, uint8_t device, uint8_t intx,
    unsigned int level);
int xc_hvm_set_isa_irq_level(
    xc_interface *xch, domid_t dom,
    uint8_t isa_irq,
    unsigned int level);

int xc_hvm_set_pci_link_route(
    xc_interface *xch, domid_t dom, uint8_t link, uint8_t isa_irq);

int xc_hvm_inject_msi(
    xc_interface *xch, domid_t dom, uint64_t addr, uint32_t data);

/*
 * Track dirty bit changes in the VRAM area
 *
 * All of this is done atomically:
 * - get the dirty bitmap since the last call
 * - set up dirty tracking area for period up to the next call
 * - clear the dirty tracking area.
 *
 * Returns -ENODATA and does not fill bitmap if the area has changed since the
 * last call.
 */
int xc_hvm_track_dirty_vram(
    xc_interface *xch, domid_t dom,
    uint64_t first_pfn, uint64_t nr,
    unsigned long *bitmap);

/*
 * Notify that some pages got modified by the Device Model
 */
int xc_hvm_modified_memory(
    xc_interface *xch, domid_t dom, uint64_t first_pfn, uint64_t nr);

/*
 * Set a range of memory to a specific type.
 * Allowed types are HVMMEM_ram_rw, HVMMEM_ram_ro, HVMMEM_mmio_dm
 */
int xc_hvm_set_mem_type(
    xc_interface *xch, domid_t dom, hvmmem_type_t memtype, uint64_t first_pfn, uint64_t nr);

/*
 * Set a range of memory to a specific access.
 * Allowed types are HVMMEM_access_default, HVMMEM_access_n, any combination of 
 * HVM_access_ + (rwx), and HVM_access_rx2rw
 */
int xc_hvm_set_mem_access(
    xc_interface *xch, domid_t dom, hvmmem_access_t memaccess, uint64_t first_pfn, uint64_t nr);

/*
 * Gets the mem access for the given page (returned in memacess on success)
 */
int xc_hvm_get_mem_access(
    xc_interface *xch, domid_t dom, uint64_t pfn, hvmmem_access_t* memaccess);

/*
 * Injects a hardware/software CPU trap, to take effect the next time the HVM 
 * resumes. 
 */
int xc_hvm_inject_trap(
    xc_interface *xch, domid_t dom, int vcpu, uint32_t trap, uint32_t error_code, 
    uint64_t cr2);

/*
 *  LOGGING AND ERROR REPORTING
 */


enum xc_error_code {
  XC_ERROR_NONE = 0,
  XC_INTERNAL_ERROR = 1,
  XC_INVALID_KERNEL = 2,
  XC_INVALID_PARAM = 3,
  XC_OUT_OF_MEMORY = 4,
  /* new codes need to be added to xc_error_level_to_desc too */
};

#define XC_MAX_ERROR_MSG_LEN 1024
typedef struct xc_error {
  enum xc_error_code code;
  char message[XC_MAX_ERROR_MSG_LEN];
} xc_error;


/*
 * Convert an error code or level into a text description.  Return values
 * are pointers to fixed strings and do not need to be freed.
 * Do not fail, but return pointers to generic strings if fed bogus input.
 */
const char *xc_error_code_to_desc(int code);

/*
 * Convert an errno value to a text description.
 */
const char *xc_strerror(xc_interface *xch, int errcode);


/*
 * Return a pointer to the last error with level XC_REPORT_ERROR. This
 * pointer and the data pointed to are only valid until the next call
 * to libxc in the same thread.
 */
const xc_error *xc_get_last_error(xc_interface *handle);

/*
 * Clear the last error
 */
void xc_clear_last_error(xc_interface *xch);


int xc_set_hvm_param(xc_interface *handle, domid_t dom, int param, unsigned long value);
int xc_get_hvm_param(xc_interface *handle, domid_t dom, int param, unsigned long *value);

/* IA64 specific, nvram save */
int xc_ia64_save_to_nvram(xc_interface *xch, uint32_t dom);

/* IA64 specific, nvram init */
int xc_ia64_nvram_init(xc_interface *xch, char *dom_name, uint32_t dom);

/* IA64 specific, set guest OS type optimizations */
int xc_ia64_set_os_type(xc_interface *xch, char *guest_os_type, uint32_t dom);

/* HVM guest pass-through */
int xc_assign_device(xc_interface *xch,
                     uint32_t domid,
                     uint32_t machine_bdf);

int xc_get_device_group(xc_interface *xch,
                     uint32_t domid,
                     uint32_t machine_bdf,
                     uint32_t max_sdevs,
                     uint32_t *num_sdevs,
                     uint32_t *sdev_array);

int xc_test_assign_device(xc_interface *xch,
                          uint32_t domid,
                          uint32_t machine_bdf);

int xc_deassign_device(xc_interface *xch,
                     uint32_t domid,
                     uint32_t machine_bdf);

int xc_domain_memory_mapping(xc_interface *xch,
                             uint32_t domid,
                             unsigned long first_gfn,
                             unsigned long first_mfn,
                             unsigned long nr_mfns,
                             uint32_t add_mapping);

int xc_domain_ioport_mapping(xc_interface *xch,
                             uint32_t domid,
                             uint32_t first_gport,
                             uint32_t first_mport,
                             uint32_t nr_ports,
                             uint32_t add_mapping);

int xc_domain_update_msi_irq(
    xc_interface *xch,
    uint32_t domid,
    uint32_t gvec,
    uint32_t pirq,
    uint32_t gflags,
    uint64_t gtable);

int xc_domain_unbind_msi_irq(xc_interface *xch,
                             uint32_t domid,
                             uint32_t gvec,
                             uint32_t pirq,
                             uint32_t gflags);

int xc_domain_bind_pt_irq(xc_interface *xch,
                          uint32_t domid,
                          uint8_t machine_irq,
                          uint8_t irq_type,
                          uint8_t bus,
                          uint8_t device,
                          uint8_t intx,
                          uint8_t isa_irq);

int xc_domain_unbind_pt_irq(xc_interface *xch,
                          uint32_t domid,
                          uint8_t machine_irq,
                          uint8_t irq_type,
                          uint8_t bus,
                          uint8_t device,
                          uint8_t intx,
                          uint8_t isa_irq);

int xc_domain_bind_pt_pci_irq(xc_interface *xch,
                              uint32_t domid,
                              uint8_t machine_irq,
                              uint8_t bus,
                              uint8_t device,
                              uint8_t intx);

int xc_domain_bind_pt_isa_irq(xc_interface *xch,
                              uint32_t domid,
                              uint8_t machine_irq);

int xc_domain_set_machine_address_size(xc_interface *xch,
				       uint32_t domid,
				       unsigned int width);
int xc_domain_get_machine_address_size(xc_interface *xch,
				       uint32_t domid);

int xc_domain_suppress_spurious_page_faults(xc_interface *xch,
					  uint32_t domid);

/* Set the target domain */
int xc_domain_set_target(xc_interface *xch,
                         uint32_t domid,
                         uint32_t target);

/* Control the domain for debug */
int xc_domain_debug_control(xc_interface *xch,
                            uint32_t domid,
                            uint32_t sop,
                            uint32_t vcpu);

#if defined(__i386__) || defined(__x86_64__)
int xc_cpuid_check(xc_interface *xch,
                   const unsigned int *input,
                   const char **config,
                   char **config_transformed);
int xc_cpuid_set(xc_interface *xch,
                 domid_t domid,
                 const unsigned int *input,
                 const char **config,
                 char **config_transformed);
int xc_cpuid_apply_policy(xc_interface *xch,
                          domid_t domid);
void xc_cpuid_to_str(const unsigned int *regs,
                     char **strs);
int xc_mca_op(xc_interface *xch, struct xen_mc *mc);
#endif

struct xc_px_val {
    uint64_t freq;        /* Px core frequency */
    uint64_t residency;   /* Px residency time */
    uint64_t count;       /* Px transition count */
};

struct xc_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 */
    uint64_t *trans_pt;   /* Px transition table */
    struct xc_px_val *pt;
};

int xc_pm_get_max_px(xc_interface *xch, int cpuid, int *max_px);
int xc_pm_get_pxstat(xc_interface *xch, int cpuid, struct xc_px_stat *pxpt);
int xc_pm_reset_pxstat(xc_interface *xch, int cpuid);

struct xc_cx_stat {
    uint32_t nr;    /* entry nr in triggers & residencies, including C0 */
    uint32_t last;         /* last Cx state */
    uint64_t idle_time;    /* idle time from boot */
    uint64_t *triggers;    /* Cx trigger counts */
    uint64_t *residencies; /* Cx residencies */
    uint64_t pc3;
    uint64_t pc6;
    uint64_t pc7;
    uint64_t cc3;
    uint64_t cc6;
};
typedef struct xc_cx_stat xc_cx_stat_t;

int xc_pm_get_max_cx(xc_interface *xch, int cpuid, int *max_cx);
int xc_pm_get_cxstat(xc_interface *xch, int cpuid, struct xc_cx_stat *cxpt);
int xc_pm_reset_cxstat(xc_interface *xch, int cpuid);

int xc_cpu_online(xc_interface *xch, int cpu);
int xc_cpu_offline(xc_interface *xch, int cpu);

/* 
 * cpufreq para name of this structure named 
 * same as sysfs file name of native linux
 */
typedef xen_userspace_t xc_userspace_t;
typedef xen_ondemand_t xc_ondemand_t;

struct xc_get_cpufreq_para {
    /* IN/OUT variable */
    uint32_t cpu_num;
    uint32_t freq_num;
    uint32_t gov_num;

    /* for all governors */
    /* OUT variable */
    uint32_t *affected_cpus;
    uint32_t *scaling_available_frequencies;
    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 {
        xc_userspace_t userspace;
        xc_ondemand_t ondemand;
    } u;

    int32_t turbo_enabled;
};

int xc_get_cpufreq_para(xc_interface *xch, int cpuid,
                        struct xc_get_cpufreq_para *user_para);
int xc_set_cpufreq_gov(xc_interface *xch, int cpuid, char *govname);
int xc_set_cpufreq_para(xc_interface *xch, int cpuid,
                        int ctrl_type, int ctrl_value);
int xc_get_cpufreq_avgfreq(xc_interface *xch, int cpuid, int *avg_freq);

int xc_set_sched_opt_smt(xc_interface *xch, uint32_t value);
int xc_set_vcpu_migration_delay(xc_interface *xch, uint32_t value);
int xc_get_vcpu_migration_delay(xc_interface *xch, uint32_t *value);

int xc_get_cpuidle_max_cstate(xc_interface *xch, uint32_t *value);
int xc_set_cpuidle_max_cstate(xc_interface *xch, uint32_t value);

int xc_enable_turbo(xc_interface *xch, int cpuid);
int xc_disable_turbo(xc_interface *xch, int cpuid);
/**
 * tmem operations
 */

struct tmem_oid {
    uint64_t oid[3];
};

int xc_tmem_control_oid(xc_interface *xch, int32_t pool_id, uint32_t subop,
                        uint32_t cli_id, uint32_t arg1, uint32_t arg2,
                        struct tmem_oid oid, void *buf);
int xc_tmem_control(xc_interface *xch,
                    int32_t pool_id, uint32_t subop, uint32_t cli_id,
                    uint32_t arg1, uint32_t arg2, uint64_t arg3, void *buf);
int xc_tmem_auth(xc_interface *xch, int cli_id, char *uuid_str, int arg1);
int xc_tmem_save(xc_interface *xch, int dom, int live, int fd, int field_marker);
int xc_tmem_save_extra(xc_interface *xch, int dom, int fd, int field_marker);
void xc_tmem_save_done(xc_interface *xch, int dom);
int xc_tmem_restore(xc_interface *xch, int dom, int fd);
int xc_tmem_restore_extra(xc_interface *xch, int dom, int fd);

/**
 * mem_event operations
 */
int xc_mem_event_control(xc_interface *xch, domid_t domain_id, unsigned int op,
                         unsigned int mode, void *shared_page,
                          void *ring_page, unsigned long gfn);

int xc_mem_event_enable(xc_interface *xch, domid_t domain_id,
                        void *shared_page, void *ring_page);
int xc_mem_event_disable(xc_interface *xch, domid_t domain_id);

int xc_mem_paging_nominate(xc_interface *xch, domid_t domain_id,
                           unsigned long gfn);
int xc_mem_paging_evict(xc_interface *xch, domid_t domain_id, unsigned long gfn);
int xc_mem_paging_prep(xc_interface *xch, domid_t domain_id, unsigned long gfn);
int xc_mem_paging_resume(xc_interface *xch, domid_t domain_id,
                         unsigned long gfn);
int xc_mem_access_resume(xc_interface *xch, domid_t domain_id,
                         unsigned long gfn);

/**
 * memshr operations
 */
int xc_memshr_control(xc_interface *xch,
                      uint32_t domid,
                      int enable);
int xc_memshr_nominate_gfn(xc_interface *xch,
                           uint32_t domid,
                           unsigned long gfn,
                           uint64_t *handle);
int xc_memshr_nominate_gref(xc_interface *xch,
                            uint32_t domid,
                            grant_ref_t gref,
                            uint64_t *handle);
int xc_memshr_share(xc_interface *xch,
                    uint64_t source_handle,
                    uint64_t client_handle);
int xc_memshr_domain_resume(xc_interface *xch,
                            uint32_t domid);
int xc_memshr_debug_gfn(xc_interface *xch,
                        uint32_t domid,
                        unsigned long gfn);
int xc_memshr_debug_mfn(xc_interface *xch,
                        uint32_t domid,
                        unsigned long mfn);
int xc_memshr_debug_gref(xc_interface *xch,
                         uint32_t domid,
                         grant_ref_t gref);

int xc_flask_load(xc_interface *xc_handle, char *buf, uint32_t size);
int xc_flask_context_to_sid(xc_interface *xc_handle, char *buf, uint32_t size, uint32_t *sid);
int xc_flask_sid_to_context(xc_interface *xc_handle, int sid, char *buf, uint32_t size);
int xc_flask_getenforce(xc_interface *xc_handle);
int xc_flask_setenforce(xc_interface *xc_handle, int mode);
int xc_flask_add_pirq(xc_interface *xc_handle, unsigned int pirq, char *scontext);
int xc_flask_add_ioport(xc_interface *xc_handle, unsigned long low, unsigned long high,
                      char *scontext);
int xc_flask_add_iomem(xc_interface *xc_handle, unsigned long low, unsigned long high,
                     char *scontext);
int xc_flask_add_device(xc_interface *xc_handle, unsigned long device, char *scontext);
int xc_flask_del_pirq(xc_interface *xc_handle, unsigned int pirq);
int xc_flask_del_ioport(xc_interface *xc_handle, unsigned long low, unsigned long high);
int xc_flask_del_iomem(xc_interface *xc_handle, unsigned long low, unsigned long high);
int xc_flask_del_device(xc_interface *xc_handle, unsigned long device);
int xc_flask_access(xc_interface *xc_handle, const char *scon, const char *tcon,
                  uint16_t tclass, uint32_t req,
                  uint32_t *allowed, uint32_t *decided,
                  uint32_t *auditallow, uint32_t *auditdeny,
                  uint32_t *seqno);
int xc_flask_avc_cachestats(xc_interface *xc_handle, char *buf, int size);
int xc_flask_policyvers(xc_interface *xc_handle, char *buf, int size);
int xc_flask_avc_hashstats(xc_interface *xc_handle, char *buf, int size);
int xc_flask_getavc_threshold(xc_interface *xc_handle);
int xc_flask_setavc_threshold(xc_interface *xc_handle, int threshold);

struct elf_binary;
void xc_elf_set_logfile(xc_interface *xch, struct elf_binary *elf,
                        int verbose);
/* Useful for callers who also use libelf. */

#endif /* XENCTRL_H */