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awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/arch/powerpc/platforms/iseries/release_data.h
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/*

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 * Copyright (C) 2001  Mike Corrigan IBM Corporation

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 *

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 * This program is free software; you can redistribute it and/or modify

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 * it under the terms of the GNU General Public License as published by

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 * the Free Software Foundation; either version 2 of the License, or

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 * (at your option) any later version.

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 *

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 * This program is distributed in the hope that it will be useful,

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 * but WITHOUT ANY WARRANTY; without even the implied warranty of

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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

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 * GNU General Public License for more details.

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 *

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 * You should have received a copy of the GNU General Public License

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 * along with this program; if not, write to the Free Software

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 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA

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 */

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#ifndef _ISERIES_RELEASE_DATA_H

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#define _ISERIES_RELEASE_DATA_H

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/*

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 * This control block contains the critical information about the

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 * release so that it can be changed in the future (ie, the virtual

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 * address of the OS's NACA).

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 */

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#include <asm/types.h>

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#include "naca.h"

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/*

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 * When we IPL a secondary partition, we will check if if the

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 * secondary xMinPlicVrmIndex > the primary xVrmIndex.

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 * If it is then this tells PLIC that this secondary is not

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 * supported running on this "old" of a level of PLIC.

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 *

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 * Likewise, we will compare the primary xMinSlicVrmIndex to

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 * the secondary xVrmIndex.

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 * If the primary xMinSlicVrmDelta > secondary xVrmDelta then we

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 * know that this PLIC does not support running an OS "that old".

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 */

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#define	HVREL_TAGSINACTIVE	0x8000

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#define HVREL_32BIT		0x4000

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#define HVREL_NOSHAREDPROCS	0x2000

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#define HVREL_NOHMT		0x1000

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struct HvReleaseData {

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	u32	xDesc;		/* Descriptor "HvRD" ebcdic	x00-x03 */

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	u16	xSize;		/* Size of this control block	x04-x05 */

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	u16	xVpdAreasPtrOffset; /* Offset in NACA of ItVpdAreas x06-x07 */

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	struct  naca_struct	*xSlicNacaAddr; /* Virt addr of SLIC NACA x08-x0F */

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	u32	xMsNucDataOffset; /* Offset of Linux Mapping Data x10-x13 */

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	u32	xRsvd1;		/* Reserved			x14-x17 */

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	u16	xFlags;

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	u16	xVrmIndex;	/* VRM Index of OS image	x1A-x1B */

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	u16	xMinSupportedPlicVrmIndex; /* Min PLIC level  (soft) x1C-x1D */

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	u16	xMinCompatablePlicVrmIndex; /* Min PLIC levelP (hard) x1E-x1F */

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	char	xVrmName[12];	/* Displayable name		x20-x2B */

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	char	xRsvd3[20];	/* Reserved			x2C-x3F */

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};

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extern const struct HvReleaseData	hvReleaseData;

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#endif /* _ISERIES_RELEASE_DATA_H */

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