| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * HvReleaseData.h |
| 3 | * Copyright (C) 2001 Mike Corrigan IBM Corporation |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License as published by |
| 7 | * the Free Software Foundation; either version 2 of the License, or |
| 8 | * (at your option) any later version. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program; if not, write to the Free Software |
| 17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 18 | */ |
| 19 | #ifndef _HVRELEASEDATA_H |
| 20 | #define _HVRELEASEDATA_H |
| 21 | |
| 22 | //============================================================================= |
| 23 | // |
| 24 | // This control block contains the critical information about the |
| 25 | // release so that it can be changed in the future (ie, the virtual |
| 26 | // address of the OS's NACA). |
| 27 | // |
| 28 | #include <asm/types.h> |
| 29 | #include <asm/naca.h> |
| 30 | |
| 31 | //============================================================================= |
| 32 | // |
| 33 | // When we IPL a secondary partition, we will check if if the |
| 34 | // secondary xMinPlicVrmIndex > the primary xVrmIndex. |
| 35 | // If it is then this tells PLIC that this secondary is not |
| 36 | // supported running on this "old" of a level of PLIC. |
| 37 | // |
| 38 | // Likewise, we will compare the primary xMinSlicVrmIndex to |
| 39 | // the secondary xVrmIndex. |
| 40 | // If the primary xMinSlicVrmDelta > secondary xVrmDelta then we |
| 41 | // know that this PLIC does not support running an OS "that old". |
| 42 | // |
| 43 | //============================================================================= |
| 44 | |
| 45 | struct HvReleaseData |
| 46 | { |
| 47 | u32 xDesc; // Descriptor "HvRD" ebcdic x00-x03 |
| 48 | u16 xSize; // Size of this control block x04-x05 |
| 49 | u16 xVpdAreasPtrOffset; // Offset in NACA of ItVpdAreas x06-x07 |
| 50 | struct naca_struct * xSlicNacaAddr; // Virt addr of SLIC NACA x08-x0F |
| 51 | u32 xMsNucDataOffset; // Offset of Linux Mapping Data x10-x13 |
| 52 | u32 xRsvd1; // Reserved x14-x17 |
| 53 | u16 xTagsMode:1; // 0 == tags active, 1 == tags inactive |
| 54 | u16 xAddressSize:1; // 0 == 64-bit, 1 == 32-bit |
| 55 | u16 xNoSharedProcs:1; // 0 == shared procs, 1 == no shared |
| 56 | u16 xNoHMT:1; // 0 == allow HMT, 1 == no HMT |
| 57 | u16 xRsvd2:12; // Reserved x18-x19 |
| 58 | u16 xVrmIndex; // VRM Index of OS image x1A-x1B |
| 59 | u16 xMinSupportedPlicVrmIndex;// Min PLIC level (soft) x1C-x1D |
| 60 | u16 xMinCompatablePlicVrmIndex;// Min PLIC levelP (hard) x1E-x1F |
| 61 | char xVrmName[12]; // Displayable name x20-x2B |
| 62 | char xRsvd3[20]; // Reserved x2C-x3F |
| 63 | }; |
| 64 | |
| 65 | #endif /* _HVRELEASEDATA_H */ |