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/*
* HvReleaseData.h
* Copyright (C) 2001 Mike Corrigan IBM Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _HVRELEASEDATA_H
#define _HVRELEASEDATA_H
/*
* This control block contains the critical information about the
* release so that it can be changed in the future (ie, the virtual
* address of the OS's NACA).
*/
#include <asm/types.h>
#include <asm/naca.h>
/*
* When we IPL a secondary partition, we will check if if the
* secondary xMinPlicVrmIndex > the primary xVrmIndex.
* If it is then this tells PLIC that this secondary is not
* supported running on this "old" of a level of PLIC.
*
* Likewise, we will compare the primary xMinSlicVrmIndex to
* the secondary xVrmIndex.
* If the primary xMinSlicVrmDelta > secondary xVrmDelta then we
* know that this PLIC does not support running an OS "that old".
*/
struct HvReleaseData {
u32 xDesc; /* Descriptor "HvRD" ebcdic x00-x03 */
u16 xSize; /* Size of this control block x04-x05 */
u16 xVpdAreasPtrOffset; /* Offset in NACA of ItVpdAreas x06-x07 */
struct naca_struct *xSlicNacaAddr; /* Virt addr of SLIC NACA x08-x0F */
u32 xMsNucDataOffset; /* Offset of Linux Mapping Data x10-x13 */
u32 xRsvd1; /* Reserved x14-x17 */
u16 xTagsMode:1; /* 0 == tags active, 1 == tags inactive */
u16 xAddressSize:1; /* 0 == 64-bit, 1 == 32-bit */
u16 xNoSharedProcs:1; /* 0 == shared procs, 1 == no shared */
u16 xNoHMT:1; /* 0 == allow HMT, 1 == no HMT */
u16 xRsvd2:12; /* Reserved x18-x19 */
u16 xVrmIndex; /* VRM Index of OS image x1A-x1B */
u16 xMinSupportedPlicVrmIndex; /* Min PLIC level (soft) x1C-x1D */
u16 xMinCompatablePlicVrmIndex; /* Min PLIC levelP (hard) x1E-x1F */
char xVrmName[12]; /* Displayable name x20-x2B */
char xRsvd3[20]; /* Reserved x2C-x3F */
};
extern struct HvReleaseData hvReleaseData;
#endif /* _HVRELEASEDATA_H */
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