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Diffstat (limited to 'ANDROID_3.4.5/include/xen/interface/memory.h')
| -rw-r--r-- | ANDROID_3.4.5/include/xen/interface/memory.h | 237 |
1 files changed, 0 insertions, 237 deletions
diff --git a/ANDROID_3.4.5/include/xen/interface/memory.h b/ANDROID_3.4.5/include/xen/interface/memory.h deleted file mode 100644 index eac3ce15..00000000 --- a/ANDROID_3.4.5/include/xen/interface/memory.h +++ /dev/null @@ -1,237 +0,0 @@ -/****************************************************************************** - * memory.h - * - * Memory reservation and information. - * - * Copyright (c) 2005, Keir Fraser <keir@xensource.com> - */ - -#ifndef __XEN_PUBLIC_MEMORY_H__ -#define __XEN_PUBLIC_MEMORY_H__ - -#include <linux/spinlock.h> - -/* - * 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 -#define XENMEM_decrease_reservation 1 -#define XENMEM_populate_physmap 6 -struct xen_memory_reservation { - - /* - * XENMEM_increase_reservation: - * OUT: MFN (*not* GMFN) bases of extents that were allocated - * XENMEM_decrease_reservation: - * IN: GMFN bases of extents to free - * XENMEM_populate_physmap: - * IN: GPFN bases of extents to populate with memory - * OUT: GMFN bases of extents that were allocated - * (NB. This command also updates the mach_to_phys translation table) - */ - GUEST_HANDLE(ulong) extent_start; - - /* Number of extents, and size/alignment of each (2^extent_order pages). */ - 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 - * zero then the user has no addressing restriction. - * This field is not used by XENMEM_decrease_reservation. - */ - unsigned int address_bits; - - /* - * Domain whose reservation is being changed. - * Unprivileged domains can specify only DOMID_SELF. - */ - domid_t domid; - -}; -DEFINE_GUEST_HANDLE_STRUCT(xen_memory_reservation); - -/* - * 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! - */ - unsigned long nr_exchanged; -}; - -DEFINE_GUEST_HANDLE_STRUCT(xen_memory_exchange); -/* - * Returns the maximum machine frame number of mapped RAM in this system. - * This command always succeeds (it never returns an error code). - * arg == NULL. - */ -#define XENMEM_maximum_ram_page 2 - -/* - * Returns the current or maximum memory reservation, in pages, of the - * specified domain (may be DOMID_SELF). Returns -ve errcode on failure. - * arg == addr of domid_t. - */ -#define XENMEM_current_reservation 3 -#define XENMEM_maximum_reservation 4 - -/* - * 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. - * arg == addr of xen_machphys_mfn_list_t. - */ -#define XENMEM_machphys_mfn_list 5 -struct xen_machphys_mfn_list { - /* - * Size of the 'extent_start' array. Fewer entries will be filled if the - * machphys table is smaller than max_extents * 2MB. - */ - unsigned int max_extents; - - /* - * Pointer to buffer to fill with list of extent starts. If there are - * any large discontiguities in the machine address space, 2MB gaps in - * the machphys table will be represented by an MFN base of zero. - */ - GUEST_HANDLE(ulong) extent_start; - - /* - * Number of extents written to the above array. This will be smaller - * than 'max_extents' if the machphys table is smaller than max_e * 2MB. - */ - unsigned int nr_extents; -}; -DEFINE_GUEST_HANDLE_STRUCT(xen_machphys_mfn_list); - -/* - * 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 { - unsigned long v_start, v_end; /* Start and end virtual addresses. */ - unsigned long max_mfn; /* Maximum MFN that can be looked up. */ -}; -DEFINE_GUEST_HANDLE_STRUCT(xen_machphys_mapping_t); - -/* - * Sets the GPFN at which a particular page appears in the specified guest's - * pseudophysical address space. - * arg == addr of xen_add_to_physmap_t. - */ -#define XENMEM_add_to_physmap 7 -struct xen_add_to_physmap { - /* Which domain to change the mapping for. */ - domid_t domid; - - /* Source mapping space. */ -#define XENMAPSPACE_shared_info 0 /* shared info page */ -#define XENMAPSPACE_grant_table 1 /* grant table page */ - unsigned int space; - - /* Index into source mapping space. */ - unsigned long idx; - - /* GPFN where the source mapping page should appear. */ - unsigned long gpfn; -}; -DEFINE_GUEST_HANDLE_STRUCT(xen_add_to_physmap); - -/* - * Translates a list of domain-specific GPFNs into MFNs. Returns a -ve error - * code on failure. This call only works for auto-translated guests. - */ -#define XENMEM_translate_gpfn_list 8 -struct xen_translate_gpfn_list { - /* Which domain to translate for? */ - domid_t domid; - - /* Length of list. */ - unsigned long nr_gpfns; - - /* List of GPFNs to translate. */ - 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). - */ - GUEST_HANDLE(ulong) mfn_list; -}; -DEFINE_GUEST_HANDLE_STRUCT(xen_translate_gpfn_list); - -/* - * Returns the pseudo-physical memory map as it was when the domain - * was started (specified by XENMEM_set_memory_map). - * arg == addr of struct xen_memory_map. - */ -#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. - */ - GUEST_HANDLE(void) buffer; -}; -DEFINE_GUEST_HANDLE_STRUCT(xen_memory_map); - -/* - * Returns the real physical memory map. Passes the same structure as - * XENMEM_memory_map. - * arg == addr of struct xen_memory_map. - */ -#define XENMEM_machine_memory_map 10 - - -/* - * Prevent the balloon driver from changing the memory reservation - * during a driver critical region. - */ -extern spinlock_t xen_reservation_lock; -#endif /* __XEN_PUBLIC_MEMORY_H__ */ |