/******************************************************************************
* memory.h
- *
- * Memory reservation and information.
- *
- * 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.
+ * Memory reservation and information.
*
* Copyright (c) 2005, Keir Fraser <keir@xensource.com>
*/
#define __XEN_PUBLIC_MEMORY_H__
/*
- * Increase or decrease the specified domain's memory reservation. Returns the
- * number of extents successfully allocated or freed.
+ * Increase or decrease the specified domain's memory reservation. Returns a
+ * -ve errcode on failure, or the # extents successfully allocated or freed.
* arg == addr of struct xen_memory_reservation.
*/
#define XENMEM_increase_reservation 0
* OUT: GMFN bases of extents that were allocated
* (NB. This command also updates the mach_to_phys translation table)
*/
- XEN_GUEST_HANDLE(xen_pfn_t) extent_start;
+ GUEST_HANDLE(ulong) extent_start;
/* Number of extents, and size/alignment of each (2^extent_order pages). */
- xen_ulong_t nr_extents;
+ unsigned long nr_extents;
unsigned int extent_order;
/*
- * Maximum # bits addressable by the user of the allocated region (e.g.,
- * I/O devices often have a 32-bit limitation even in 64-bit systems). If
+ * Maximum # bits addressable by the user of the allocated region (e.g.,
+ * I/O devices often have a 32-bit limitation even in 64-bit systems). If
* zero then the user has no addressing restriction.
* This field is not used by XENMEM_decrease_reservation.
*/
* Unprivileged domains can specify only DOMID_SELF.
*/
domid_t domid;
-};
-DEFINE_XEN_GUEST_HANDLE_STRUCT(xen_memory_reservation);
-typedef struct xen_memory_reservation xen_memory_reservation_t;
-DEFINE_XEN_GUEST_HANDLE(xen_memory_reservation_t);
-/*
- * An atomic exchange of memory pages. If return code is zero then
- * @out.extent_list provides GMFNs of the newly-allocated memory.
- * Returns zero on complete success, otherwise a negative error code.
- * On complete success then always @nr_exchanged == @in.nr_extents.
- * On partial success @nr_exchanged indicates how much work was done.
- */
-#define XENMEM_exchange 11
-struct xen_memory_exchange {
- /*
- * [IN] Details of memory extents to be exchanged (GMFN bases).
- * Note that @in.address_bits is ignored and unused.
- */
- struct xen_memory_reservation in;
-
- /*
- * [IN/OUT] Details of new memory extents.
- * We require that:
- * 1. @in.domid == @out.domid
- * 2. @in.nr_extents << @in.extent_order ==
- * @out.nr_extents << @out.extent_order
- * 3. @in.extent_start and @out.extent_start lists must not overlap
- * 4. @out.extent_start lists GPFN bases to be populated
- * 5. @out.extent_start is overwritten with allocated GMFN bases
- */
- struct xen_memory_reservation out;
-
- /*
- * [OUT] Number of input extents that were successfully exchanged:
- * 1. The first @nr_exchanged input extents were successfully
- * deallocated.
- * 2. The corresponding first entries in the output extent list correctly
- * indicate the GMFNs that were successfully exchanged.
- * 3. All other input and output extents are untouched.
- * 4. If not all input exents are exchanged then the return code of this
- * command will be non-zero.
- * 5. THIS FIELD MUST BE INITIALISED TO ZERO BY THE CALLER!
- */
- xen_ulong_t nr_exchanged;
};
-typedef struct xen_memory_exchange xen_memory_exchange_t;
-DEFINE_XEN_GUEST_HANDLE(xen_memory_exchange_t);
+DEFINE_GUEST_HANDLE_STRUCT(xen_memory_reservation);
/*
* Returns the maximum machine frame number of mapped RAM in this system.
#define XENMEM_maximum_reservation 4
/*
- * Returns the maximum GPFN in use by the guest, or -ve errcode on failure.
- */
-#define XENMEM_maximum_gpfn 14
-
-/*
* Returns a list of MFN bases of 2MB extents comprising the machine_to_phys
* mapping table. Architectures which do not have a m2p table do not implement
* this command.
* any large discontiguities in the machine address space, 2MB gaps in
* the machphys table will be represented by an MFN base of zero.
*/
- XEN_GUEST_HANDLE(xen_pfn_t) extent_start;
+ GUEST_HANDLE(ulong) extent_start;
/*
* Number of extents written to the above array. This will be smaller
*/
unsigned int nr_extents;
};
-DEFINE_XEN_GUEST_HANDLE_STRUCT(xen_machphys_mfn_list);
-typedef struct xen_machphys_mfn_list xen_machphys_mfn_list_t;
-DEFINE_XEN_GUEST_HANDLE(xen_machphys_mfn_list_t);
-
-/*
- * Returns the location in virtual address space of the machine_to_phys
- * mapping table. Architectures which do not have a m2p table, or which do not
- * map it by default into guest address space, do not implement this command.
- * arg == addr of xen_machphys_mapping_t.
- */
-#define XENMEM_machphys_mapping 12
-struct xen_machphys_mapping {
- xen_ulong_t v_start, v_end; /* Start and end virtual addresses. */
- xen_ulong_t max_mfn; /* Maximum MFN that can be looked up. */
-};
-typedef struct xen_machphys_mapping xen_machphys_mapping_t;
-DEFINE_XEN_GUEST_HANDLE(xen_machphys_mapping_t);
+DEFINE_GUEST_HANDLE_STRUCT(xen_machphys_mfn_list);
/*
* Sets the GPFN at which a particular page appears in the specified guest's
unsigned int space;
/* Index into source mapping space. */
- xen_ulong_t idx;
+ unsigned long idx;
/* GPFN where the source mapping page should appear. */
- xen_pfn_t gpfn;
+ unsigned long gpfn;
};
-DEFINE_XEN_GUEST_HANDLE_STRUCT(xen_add_to_physmap);
-typedef struct xen_add_to_physmap xen_add_to_physmap_t;
-DEFINE_XEN_GUEST_HANDLE(xen_add_to_physmap_t);
+DEFINE_GUEST_HANDLE_STRUCT(xen_add_to_physmap);
/*
* Translates a list of domain-specific GPFNs into MFNs. Returns a -ve error
domid_t domid;
/* Length of list. */
- xen_ulong_t nr_gpfns;
+ unsigned long nr_gpfns;
/* List of GPFNs to translate. */
- XEN_GUEST_HANDLE(xen_pfn_t) gpfn_list;
+ GUEST_HANDLE(ulong) gpfn_list;
/*
* Output list to contain MFN translations. May be the same as the input
* list (in which case each input GPFN is overwritten with the output MFN).
*/
- XEN_GUEST_HANDLE(xen_pfn_t) mfn_list;
+ GUEST_HANDLE(ulong) mfn_list;
};
-DEFINE_XEN_GUEST_HANDLE_STRUCT(xen_translate_gpfn_list);
-typedef struct xen_translate_gpfn_list xen_translate_gpfn_list_t;
-DEFINE_XEN_GUEST_HANDLE(xen_translate_gpfn_list_t);
-
-/*
- * Returns the pseudo-physical memory map as it was when the domain
- * was started (specified by XENMEM_set_memory_map).
- * arg == addr of xen_memory_map_t.
- */
-#define XENMEM_memory_map 9
-struct xen_memory_map {
- /*
- * On call the number of entries which can be stored in buffer. On
- * return the number of entries which have been stored in
- * buffer.
- */
- unsigned int nr_entries;
-
- /*
- * Entries in the buffer are in the same format as returned by the
- * BIOS INT 0x15 EAX=0xE820 call.
- */
- XEN_GUEST_HANDLE(void) buffer;
-};
-typedef struct xen_memory_map xen_memory_map_t;
-DEFINE_XEN_GUEST_HANDLE(xen_memory_map_t);
-
-/*
- * Returns the real physical memory map. Passes the same structure as
- * XENMEM_memory_map.
- * arg == addr of xen_memory_map_t.
- */
-#define XENMEM_machine_memory_map 10
-
-/*
- * Set the pseudo-physical memory map of a domain, as returned by
- * XENMEM_memory_map.
- * arg == addr of xen_foreign_memory_map_t.
- */
-#define XENMEM_set_memory_map 13
-struct xen_foreign_memory_map {
- domid_t domid;
- struct xen_memory_map map;
-};
-typedef struct xen_foreign_memory_map xen_foreign_memory_map_t;
-DEFINE_XEN_GUEST_HANDLE(xen_foreign_memory_map_t);
+DEFINE_GUEST_HANDLE_STRUCT(xen_translate_gpfn_list);
#endif /* __XEN_PUBLIC_MEMORY_H__ */
-
-/*
- * Local variables:
- * mode: C
- * c-set-style: "BSD"
- * c-basic-offset: 4
- * tab-width: 4
- * indent-tabs-mode: nil
- * End:
- */
projects / linux-flexiantxendom0-3.2.10.git / blobdiff