| /* |
| * 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. |
| * |
| * Copyright (C) IBM Corp. 2006 |
| */ |
| |
| #ifndef _XEN_XENCOMM_H_ |
| #define _XEN_XENCOMM_H_ |
| |
| /* A xencomm descriptor is a scatter/gather list containing physical |
| * addresses corresponding to a virtually contiguous memory area. The |
| * hypervisor translates these physical addresses to machine addresses to copy |
| * to and from the virtually contiguous area. |
| */ |
| |
| #define XENCOMM_MAGIC 0x58434F4D /* 'XCOM' */ |
| #define XENCOMM_INVALID (~0UL) |
| |
| struct xencomm_desc { |
| uint32_t magic; |
| uint32_t nr_addrs; /* the number of entries in address[] */ |
| uint64_t address[0]; |
| }; |
| |
| #endif /* _XEN_XENCOMM_H_ */ |