2 * Copyright (C) 2001 Mike Corrigan IBM Corporation
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 #ifndef _ISERIES_RELEASE_DATA_H
19 #define _ISERIES_RELEASE_DATA_H
22 * This control block contains the critical information about the
23 * release so that it can be changed in the future (ie, the virtual
24 * address of the OS's NACA).
26 #include <asm/types.h>
30 * When we IPL a secondary partition, we will check if if the
31 * secondary xMinPlicVrmIndex > the primary xVrmIndex.
32 * If it is then this tells PLIC that this secondary is not
33 * supported running on this "old" of a level of PLIC.
35 * Likewise, we will compare the primary xMinSlicVrmIndex to
36 * the secondary xVrmIndex.
37 * If the primary xMinSlicVrmDelta > secondary xVrmDelta then we
38 * know that this PLIC does not support running an OS "that old".
41 #define HVREL_TAGSINACTIVE 0x8000
42 #define HVREL_32BIT 0x4000
43 #define HVREL_NOSHAREDPROCS 0x2000
44 #define HVREL_NOHMT 0x1000
46 struct HvReleaseData {
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 */
54 u16 xVrmIndex; /* VRM Index of OS image x1A-x1B */
55 u16 xMinSupportedPlicVrmIndex; /* Min PLIC level (soft) x1C-x1D */
56 u16 xMinCompatablePlicVrmIndex; /* Min PLIC levelP (hard) x1E-x1F */
57 char xVrmName[12]; /* Displayable name x20-x2B */
58 char xRsvd3[20]; /* Reserved x2C-x3F */
61 extern struct HvReleaseData hvReleaseData;
63 #endif /* _ISERIES_RELEASE_DATA_H */