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https://github.com/edk2-porting/linux-next.git
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f9a5e6a27d
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
64 lines
2.4 KiB
C
64 lines
2.4 KiB
C
/*
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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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