projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| 0fd14246 SS |
1 | /** @file\r |
| 2 | Grant Table function declaration.\r | |
| 3 | \r | |
| 4 | Grant Table are used to grant access to certain page of the current\r | |
| 5 | VM to an other VM.\r | |
| 6 | \r | |
| 7 | Copyright (C) 2014, Citrix Ltd.\r | |
| 8 | \r | |
| b26f0cf9 | 9 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
| 0fd14246 SS |
10 | \r |
| 11 | **/\r | |
| ac0a286f | 12 | \r |
| 0fd14246 SS |
13 | #ifndef __GNTTAB_H__\r |
| 14 | #define __GNTTAB_H__\r | |
| 15 | \r | |
| 16 | #include <IndustryStandard/Xen/grant_table.h>\r | |
| 17 | \r | |
| 18 | /**\r | |
| 19 | Initialize the Grant Table at the address MmioAddr.\r | |
| 20 | \r | |
| 21 | @param Dev A pointer to XENBUS_DEVICE.\r | |
| 22 | @param MmioAddr An address where the grant table can be mapped into\r | |
| 23 | the guest.\r | |
| 24 | **/\r | |
| 25 | VOID\r | |
| 26 | XenGrantTableInit (\r | |
| d9fdfd85 | 27 | IN XENBUS_DEVICE *Dev\r |
| 0fd14246 SS |
28 | );\r |
| 29 | \r | |
| 30 | /**\r | |
| 38c92f70 | 31 | De-initialize the Grant Table.\r |
| 0fd14246 SS |
32 | **/\r |
| 33 | VOID\r | |
| 34 | XenGrantTableDeinit (\r | |
| 35 | IN XENBUS_DEVICE *Dev\r | |
| 36 | );\r | |
| 37 | \r | |
| 38 | /**\r | |
| 39 | Grant access to the page Frame to the domain DomainId.\r | |
| 40 | \r | |
| 41 | @param This A pointer to XENBUS_PROTOCOL instance.\r | |
| 493dde94 | 42 | @param DomainId ID of the domain to grant access to.\r |
| 0fd14246 SS |
43 | @param Frame Frame Number of the page to grant access to.\r |
| 44 | @param ReadOnly Provide read-only or read-write access.\r | |
| b6b33f67 | 45 | @param RefPtr Reference number of the grant will be written to this pointer.\r |
| 0fd14246 SS |
46 | **/\r |
| 47 | EFI_STATUS\r | |
| 48 | EFIAPI\r | |
| 49 | XenBusGrantAccess (\r | |
| ac0a286f MK |
50 | IN XENBUS_PROTOCOL *This,\r |
| 51 | IN domid_t DomainId,\r | |
| 52 | IN UINTN Frame, // MFN\r | |
| 53 | IN BOOLEAN ReadOnly,\r | |
| 54 | OUT grant_ref_t *RefPtr\r | |
| 0fd14246 SS |
55 | );\r |
| 56 | \r | |
| 57 | /**\r | |
| 58 | End access to grant Ref, previously return by XenBusGrantAccess.\r | |
| 59 | \r | |
| 60 | @param This A pointer to XENBUS_PROTOCOL instance.\r | |
| 61 | @param Ref Reference numeber of a grant previously returned by\r | |
| 62 | XenBusGrantAccess.\r | |
| 63 | **/\r | |
| 64 | EFI_STATUS\r | |
| 65 | EFIAPI\r | |
| 66 | XenBusGrantEndAccess (\r | |
| 67 | IN XENBUS_PROTOCOL *This,\r | |
| 68 | IN grant_ref_t Ref\r | |
| 69 | );\r | |
| 70 | \r | |
| 71 | #endif /* !__GNTTAB_H__ */\r |