/****************************************************************************** | |
* memory.h | |
* | |
* Memory reservation and information. | |
* | |
* SPDX-License-Identifier: MIT | |
* | |
* Copyright (c) 2005, Keir Fraser <keir@xensource.com> | |
*/ | |
#ifndef __XEN_PUBLIC_MEMORY_H__ | |
#define __XEN_PUBLIC_MEMORY_H__ | |
#include "xen.h" | |
/* Source mapping space. */ | |
/* ` enum phys_map_space { */ | |
#define XENMAPSPACE_shared_info 0 /* shared info page */ | |
#define XENMAPSPACE_grant_table 1 /* grant table page */ | |
#define XENMAPSPACE_gmfn 2 /* GMFN */ | |
#define XENMAPSPACE_gmfn_range 3 /* GMFN range, XENMEM_add_to_physmap only. */ | |
#define XENMAPSPACE_gmfn_foreign 4 /* GMFN from another dom, | |
* XENMEM_add_to_physmap_batch only. */ | |
/* ` } */ | |
/* | |
* 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; | |
/* Number of pages to go through for gmfn_range */ | |
UINT16 size; | |
UINT32 space; /* => enum phys_map_space */ | |
#define XENMAPIDX_grant_table_status 0x80000000 | |
/* Index into space being mapped. */ | |
xen_ulong_t idx; | |
/* GPFN in domid where the source mapping page should appear. */ | |
xen_pfn_t gpfn; | |
}; | |
typedef struct xen_add_to_physmap xen_add_to_physmap_t; | |
DEFINE_XEN_GUEST_HANDLE (xen_add_to_physmap_t); | |
/* | |
* Unmaps the page appearing at a particular GPFN from the specified guest's | |
* pseudophysical address space. | |
* arg == addr of xen_remove_from_physmap_t. | |
*/ | |
#define XENMEM_remove_from_physmap 15 | |
struct xen_remove_from_physmap { | |
/* Which domain to change the mapping for. */ | |
domid_t domid; | |
/* GPFN of the current mapping of the page. */ | |
xen_pfn_t gpfn; | |
}; | |
typedef struct xen_remove_from_physmap xen_remove_from_physmap_t; | |
DEFINE_XEN_GUEST_HANDLE (xen_remove_from_physmap_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. | |
*/ | |
UINT32 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); | |
#endif /* __XEN_PUBLIC_MEMORY_H__ */ | |
/* | |
* Local variables: | |
* mode: C | |
* c-file-style: "BSD" | |
* c-basic-offset: 4 | |
* tab-width: 4 | |
* indent-tabs-mode: nil | |
* End: | |
*/ |