3a9fd8242b
The current path of the Xen headers at /sys/xen/interface/ is not correct, as those headers are imported verbatim from the Xen sources and shouldn't be modified, as any modifications would be lost when a new version is imported. Changes to the public headers must be first done in Xen upstream so that they can be backported and new imports will already carry them. Import Xen 4.16 headers in sys/contrib/xen/. It's unlikely that we will import different Xen code, so don't place them inside of any subdirectory. If in the future other pieces of Xen code need to be imported the headers will need to move into an include/ subdirectory. Note that this commit does not yet modify the include path to use the newly imported headers. Sponsored by: Citrix Systems R&D
123 lines
3.7 KiB
C
123 lines
3.7 KiB
C
/******************************************************************************
|
|
* tmem.h
|
|
*
|
|
* Guest OS interface to Xen Transcendent Memory.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to
|
|
* deal in the Software without restriction, including without limitation the
|
|
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
|
|
* sell copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
|
* DEALINGS IN THE SOFTWARE.
|
|
*
|
|
* Copyright (c) 2004, K A Fraser
|
|
*/
|
|
|
|
#ifndef __XEN_PUBLIC_TMEM_H__
|
|
#define __XEN_PUBLIC_TMEM_H__
|
|
|
|
#include "xen.h"
|
|
|
|
#if __XEN_INTERFACE_VERSION__ < 0x00041300
|
|
|
|
/* version of ABI */
|
|
#define TMEM_SPEC_VERSION 1
|
|
|
|
#define TMEM_NEW_POOL 1
|
|
#define TMEM_DESTROY_POOL 2
|
|
#define TMEM_PUT_PAGE 4
|
|
#define TMEM_GET_PAGE 5
|
|
#define TMEM_FLUSH_PAGE 6
|
|
#define TMEM_FLUSH_OBJECT 7
|
|
#if __XEN_INTERFACE_VERSION__ < 0x00040400
|
|
#define TMEM_NEW_PAGE 3
|
|
#define TMEM_READ 8
|
|
#define TMEM_WRITE 9
|
|
#define TMEM_XCHG 10
|
|
#endif
|
|
|
|
/* Privileged commands now called via XEN_SYSCTL_tmem_op. */
|
|
#define TMEM_AUTH 101 /* as XEN_SYSCTL_TMEM_OP_SET_AUTH. */
|
|
#define TMEM_RESTORE_NEW 102 /* as XEN_SYSCTL_TMEM_OP_SET_POOL. */
|
|
|
|
/* Bits for HYPERVISOR_tmem_op(TMEM_NEW_POOL) */
|
|
#define TMEM_POOL_PERSIST 1
|
|
#define TMEM_POOL_SHARED 2
|
|
#define TMEM_POOL_PRECOMPRESSED 4
|
|
#define TMEM_POOL_PAGESIZE_SHIFT 4
|
|
#define TMEM_POOL_PAGESIZE_MASK 0xf
|
|
#define TMEM_POOL_VERSION_SHIFT 24
|
|
#define TMEM_POOL_VERSION_MASK 0xff
|
|
#define TMEM_POOL_RESERVED_BITS 0x00ffff00
|
|
|
|
/* Bits for client flags (save/restore) */
|
|
#define TMEM_CLIENT_COMPRESS 1
|
|
#define TMEM_CLIENT_FROZEN 2
|
|
|
|
/* Special errno values */
|
|
#define EFROZEN 1000
|
|
#define EEMPTY 1001
|
|
|
|
struct xen_tmem_oid {
|
|
uint64_t oid[3];
|
|
};
|
|
typedef struct xen_tmem_oid xen_tmem_oid_t;
|
|
DEFINE_XEN_GUEST_HANDLE(xen_tmem_oid_t);
|
|
|
|
#ifndef __ASSEMBLY__
|
|
#if __XEN_INTERFACE_VERSION__ < 0x00040400
|
|
typedef xen_pfn_t tmem_cli_mfn_t;
|
|
#endif
|
|
typedef XEN_GUEST_HANDLE(char) tmem_cli_va_t;
|
|
struct tmem_op {
|
|
uint32_t cmd;
|
|
int32_t pool_id;
|
|
union {
|
|
struct {
|
|
uint64_t uuid[2];
|
|
uint32_t flags;
|
|
uint32_t arg1;
|
|
} creat; /* for cmd == TMEM_NEW_POOL. */
|
|
struct {
|
|
#if __XEN_INTERFACE_VERSION__ < 0x00040600
|
|
uint64_t oid[3];
|
|
#else
|
|
xen_tmem_oid_t oid;
|
|
#endif
|
|
uint32_t index;
|
|
uint32_t tmem_offset;
|
|
uint32_t pfn_offset;
|
|
uint32_t len;
|
|
xen_pfn_t cmfn; /* client machine page frame */
|
|
} gen; /* for all other cmd ("generic") */
|
|
} u;
|
|
};
|
|
typedef struct tmem_op tmem_op_t;
|
|
DEFINE_XEN_GUEST_HANDLE(tmem_op_t);
|
|
#endif
|
|
|
|
#endif /* __XEN_INTERFACE_VERSION__ < 0x00041300 */
|
|
|
|
#endif /* __XEN_PUBLIC_TMEM_H__ */
|
|
|
|
/*
|
|
* Local variables:
|
|
* mode: C
|
|
* c-file-style: "BSD"
|
|
* c-basic-offset: 4
|
|
* tab-width: 4
|
|
* indent-tabs-mode: nil
|
|
* End:
|
|
*/
|