OvmfPkg: Import XENMEM_memory_map hypercall to Xen/memory.h

[mirror_edk2.git] / OvmfPkg / Include / IndustryStandard / Xen / memory.h

/******************************************************************************\r
 * memory.h\r
 * \r
 * Memory reservation and information.\r
 * \r
 * SPDX-License-Identifier: MIT\r
 *\r
 * Copyright (c) 2005, Keir Fraser <keir@xensource.com>\r
 */\r
\r
#ifndef __XEN_PUBLIC_MEMORY_H__\r
#define __XEN_PUBLIC_MEMORY_H__\r
\r
#include "xen.h"\r
\r
/* Source mapping space. */\r
/* ` enum phys_map_space { */\r
#define XENMAPSPACE_shared_info  0 /* shared info page */\r
#define XENMAPSPACE_grant_table  1 /* grant table page */\r
#define XENMAPSPACE_gmfn         2 /* GMFN */\r
#define XENMAPSPACE_gmfn_range   3 /* GMFN range, XENMEM_add_to_physmap only. */\r
#define XENMAPSPACE_gmfn_foreign 4 /* GMFN from another dom,\r
                                    * XENMEM_add_to_physmap_batch only. */\r
/* ` } */\r
\r
/*\r
 * Sets the GPFN at which a particular page appears in the specified guest's\r
 * pseudophysical address space.\r
 * arg == addr of xen_add_to_physmap_t.\r
 */\r
#define XENMEM_add_to_physmap      7\r
struct xen_add_to_physmap {\r
    /* Which domain to change the mapping for. */\r
    domid_t domid;\r
\r
    /* Number of pages to go through for gmfn_range */\r
    UINT16    size;\r
\r
    UINT32 space; /* => enum phys_map_space */\r
\r
#define XENMAPIDX_grant_table_status 0x80000000\r
\r
    /* Index into space being mapped. */\r
    xen_ulong_t idx;\r
\r
    /* GPFN in domid where the source mapping page should appear. */\r
    xen_pfn_t     gpfn;\r
};\r
typedef struct xen_add_to_physmap xen_add_to_physmap_t;\r
DEFINE_XEN_GUEST_HANDLE(xen_add_to_physmap_t);\r
\r
/*\r
 * Unmaps the page appearing at a particular GPFN from the specified guest's\r
 * pseudophysical address space.\r
 * arg == addr of xen_remove_from_physmap_t.\r
 */\r
#define XENMEM_remove_from_physmap      15\r
struct xen_remove_from_physmap {\r
    /* Which domain to change the mapping for. */\r
    domid_t domid;\r
\r
    /* GPFN of the current mapping of the page. */\r
    xen_pfn_t     gpfn;\r
};\r
typedef struct xen_remove_from_physmap xen_remove_from_physmap_t;\r
DEFINE_XEN_GUEST_HANDLE(xen_remove_from_physmap_t);\r
\r
/*\r
 * Returns the pseudo-physical memory map as it was when the domain\r
 * was started (specified by XENMEM_set_memory_map).\r
 * arg == addr of xen_memory_map_t.\r
 */\r
#define XENMEM_memory_map           9\r
struct xen_memory_map {\r
    /*\r
     * On call the number of entries which can be stored in buffer. On\r
     * return the number of entries which have been stored in\r
     * buffer.\r
     */\r
    UINT32 nr_entries;\r
\r
    /*\r
     * Entries in the buffer are in the same format as returned by the\r
     * BIOS INT 0x15 EAX=0xE820 call.\r
     */\r
    XEN_GUEST_HANDLE(void) buffer;\r
};\r
typedef struct xen_memory_map xen_memory_map_t;\r
DEFINE_XEN_GUEST_HANDLE(xen_memory_map_t);\r
\r
#endif /* __XEN_PUBLIC_MEMORY_H__ */\r
\r
/*\r
 * Local variables:\r
 * mode: C\r
 * c-file-style: "BSD"\r
 * c-basic-offset: 4\r
 * tab-width: 4\r
 * indent-tabs-mode: nil\r
 * End:\r
 */\r